Title: CA $420 Cheap Flights from San Francisco (SFO) to Santa Rosa (STS) - Expedia.ca ![](https://images.trvl-media.com/place/3288/93d7ff98-0178-43a1-b262-1a96bbba25d1.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3288/93d7ff98-0178-43a1-b262-1a96bbba25d1.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $420 Cheap Flights from San Francisco (SFO) to Santa Rosa (STS) [View CA $420 flight on Tue, Oct 14, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SFO,to:STS,departure:14/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:419.90&airProductToken=AQpFCiAIwaYBEgQzMzc2GLJxIJJoKP6v-gIw57D6AjhYQABYAQohCMGmARIEMzMwMhiSaCDylAEooLH6AjCYsvoCOFhAAVgBEgoIARABGAEqAkFTGAEiBAgBEAEoBDAB) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from San Francisco International Airport (SFO) to Santa Rosa, CA (STS-Sonoma County) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:sts,departure:27/10/2025TANYT&leg2=from:sts,to:sfo,departure:03/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:sts,departure:27/10/2025TANYT&leg2=from:sts,to:sfo,departure:03/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:sts,departure:27/10/2025TANYT&leg2=from:sts,to:sfo,departure:03/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from San Francisco (SFO) to Santa Rosa (STS) Prices were available within the past 7 days and start at CA $420 for one-way flights and CA $367 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $367 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:366.70&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCFFIMk9BU0JOCmEKLwjBpgESBDMyNTQY8pQBIJJoKMKC_QIwqYP9AjhYQABYAWoCU1ZyCE9IMk9BVUJOCi4IwaYBEgQzMzc2GJJoILJxKMeD_QIwsoT9AjhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $374 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:373.20&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCFFIMk9BU0JOCmMKMAjBpgESBDM0MTQY8pQBIIu4ASjXgv0CMLuD_QI4WEAAWAFqAlNWcghPSDJPWlVCTgovCMGmARIEMzQ2MRiLuAEgsnEo5YP9AjC-hP0COFhAAVgBagJTVnIIT0g1T1FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $381 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:380.70&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCFFIMk9BU0JOCmMKMAjBpgESBDMyMTMY8pQBIIGNASjE_PwCMKH9_AI4WEAAWAFqAlNWcghRSDJPQVNCTgovCMGmARIEMzA2MxiBjQEgsnEotf_8AjCYgP0COFhAAVgBagJTVnIIT0gyT0FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $388 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:387.10&airProductToken=AQpjCi8IwaYBEgQyMDk2GLJxIIu4ASjF3_wCMJzg_AI4WEAAWAFqAlNWcghPSDVPUVZCTgowCMGmARIEMzM0OBiLuAEg8pQBKLHh_AIwl-L8AjhYQAFYAWoCU1ZyCFFINE9BVUJOCmEKLwjBpgESBDMyNTQY8pQBIJJoKMKC_QIwqYP9AjhYQABYAWoCU1ZyCE9IMk9BVUJOCi4IwaYBEgQzMzc2GJJoILJxKMeD_QIwsoT9AjhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $395 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:394.70&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVVCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCEdIMk9aVUJOCmEKLwjBpgESBDMzMTUY8pQBIJJoKLn8_AIwqP38AjhYQABYAWoCU1ZyCE5IMk9BU0JOCi4IwaYBEgQzNDgyGJJoILJxKP6A_QIw5oH9AjhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $402 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:401.10&airProductToken=AQpfCiwIwaYBEgI2OBiycSCSASig2_wCMK_c_AI4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTMyMRiSASDylAEo49z8AjDm3fwCOFhAAVgBagJTVnIIT0gyT0FVQk4KYQovCMGmARIEMzI1NBjylAEgkmgowoL9AjCpg_0COFhAAFgBagJTVnIIT0gyT0FVQk4KLgjBpgESBDMzNzYYkmggsnEox4P9AjCyhP0COFhAAVgBagJTVnIIR0gyT0FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $409 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:408.60&airProductToken=AQpfCiwIwaYBEgI2OBiycSCSASig2_wCMK_c_AI4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTMyMRiSASDylAEo49z8AjDm3fwCOFhAAVgBagJTVnIIT0gyT0FVQk4KYwowCMGmARIEMzQxNBjylAEgi7gBKNeC_QIwu4P9AjhYQABYAWoCU1ZyCE9IMk9aVUJOCi8IwaYBEgQzNDYxGIu4ASCycSjlg_0CML6E_QI4WEABWAFqAlNWcghPSDVPUVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $416 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:415.10&airProductToken=AQpfCiwIwaYBEgI2OBiycSCSASig2_wCMK_c_AI4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTMyMRiSASDylAEo49z8AjDm3fwCOFhAAVgBagJTVnIIT0gyT0FVQk4KYwowCMGmARIEMzIxMxjylAEggY0BKMT8_AIwof38AjhYQABYAWoCU1ZyCFFIMk9BU0JOCi8IwaYBEgQzMDYzGIGNASCycSi1__wCMJiA_QI4WEABWAFqAlNWcghPSDJPQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $423 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:422.60&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCEdIMk9aVUJOCmEKLwjBpgESBDMzMTUY8pQBIJJoKLn8_AIwqP38AjhYQABYAWoCU1ZyCFFIMk9BVUJOCi4IwaYBEgQyNDI3GJJoILJxKI7__AIw8P_8AjhYQAFYAWoCU1ZyCE9INE9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $430 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:429.10&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCE9INE9BVUJOCmEKLwjBpgESBDMyMjEY8pQBIJJoKPH__AIw1oD9AjhYQABYAWoCU1ZyCFNIMk9BU0JOCi4IwaYBEgQzNDgyGJJoILJxKP6A_QIw5oH9AjhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $437 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:436.60&airProductToken=AQpgCi0IwaYBEgM1OTEYsnEgkgEop9_8AjCz4PwCOFhAAFgBagJTVnIIT0gyT0FWQk4KLwjBpgESBDI0MzEYkgEg8pQBKPXg_AIw7eH8AjhYQAFYAWoCU1ZyCE9IMk9BVUJOCmMKMAjBpgESBDM0MTQY8pQBIIu4ASjXgv0CMLuD_QI4WEAAWAFqAlNWcghPSDJPWlVCTgovCMGmARIEMzQ2MRiLuAEgsnEo5YP9AjC-hP0COFhAAVgBagJTVnIIT0g1T1FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $443 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:443.00&airProductToken=AQpgCi0IwaYBEgM1OTEYsnEgkgEop9_8AjCz4PwCOFhAAFgBagJTVnIIT0gyT0FWQk4KLwjBpgESBDI0MzEYkgEg8pQBKPXg_AIw7eH8AjhYQAFYAWoCU1ZyCE9IMk9BVUJOCmMKMAjBpgESBDMyMTMY8pQBIIGNASjE_PwCMKH9_AI4WEAAWAFqAlNWcghRSDJPQVNCTgovCMGmARIEMzA2MxiBjQEgsnEotf_8AjCYgP0COFhAAVgBagJTVnIIT0gyT0FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $451 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:450.60&airProductToken=AQpfCiwIwaYBEgI2OBiycSCSASig2_wCMK_c_AI4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTMyMRiSASDylAEo49z8AjDm3fwCOFhAAVgBagJTVnIIT0gyT0FVQk4KYAovCMGmARIEMTMyMhjylAEgkgEo_v_8AjD-gP0COFhAAFgBagJTVnIIT0gyT0FVQk4KLQjBpgESAzQxMRiSASCycSisg_0CMLaE_QI4WEABWAFqAlNWcghHSDJPQVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $457 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:457.00&airProductToken=AQpgCi0IwaYBEgM1OTEYsnEgkgEop9_8AjCz4PwCOFhAAFgBagJTVnIIT0gyT0FWQk4KLwjBpgESBDI0MzEYkgEg8pQBKPXg_AIw7eH8AjhYQAFYAWoCU1ZyCE9IMk9BVUJOCmEKLwjBpgESBDMzMTUY8pQBIJJoKLn8_AIwqP38AjhYQABYAWoCU1ZyCE5IMk9BU0JOCi4IwaYBEgQzNDgyGJJoILJxKP6A_QIw5oH9AjhYQAFYAWoCU1ZyCEdIMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $465 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:464.50&airProductToken=AQpfCiwIwaYBEgI2OBiycSCSASig2_wCMK_c_AI4WEAAWAFqAlNWcghHSDJPQVZCTgovCMGmARIEMTMyMRiSASDylAEo49z8AjDm3fwCOFhAAVgBagJTVnIIT0gyT0FVQk4KYwowCMGmARIEMzM2NhjylAEgi7gBKPH8_AIw3_38AjhYQABYAWoCU1ZyCE5INE9BU0JOCi8IwaYBEgQyMTQ5GIu4ASCycSipgP0CMP2A_QI4WEABWAFqAlNWcghPSDVPUVZCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $471 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:471.00&airProductToken=AQpjCi8IwaYBEgQzMzMzGLJxIIGNASjx2_wCMMTc_AI4WEAAWAFqAlNWcghPSDJPQVZCTgowCMGmARIEMzI3NBiBjQEg8pQBKODf_AIwy-D8AjhYQAFYAWoCU1ZyCFFIMk9BU0JOCmMKMAjBpgESBDM0MTcY8pQBIO-4ASjw_vwCMNr__AI4WEAAWAFqAlNWcghPSDJPQVVCTgovCMGmARIEMjExMhjvuAEgsnEohoD9AjD2gP0COFhAAVgBagJTVnIIT0gyT0FWQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $479 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:478.50&airProductToken=AQphCi4IwaYBEgQzMzI3GLJxIJJoKJzg_AIwg-H8AjhYQABYAWoCU1ZyCE5IM09BVkJOCi8IwaYBEgQzMzAyGJJoIPKUASjn4fwCMN3i_AI4WEABWAFqAlNWcghOSDJPQVNCTgpjCjAIwaYBEgQzMjEzGPKUASCBjQEoxPz8AjCh_fwCOFhAAFgBagJTVnIIUUgyT0FTQk4KLwjBpgESBDMwNjMYgY0BILJxKLX__AIwmID9AjhYQAFYAWoCU1ZyCE9IMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Nov 10 - Thu, Nov 13 SFO San Francisco STS Santa Rosa CA $485 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SFO,to:STS,departure:10/11/2025TANYT&leg2=from:STS,to:SFO,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:485.00&airProductToken=AQpgCi0IwaYBEgM1ODAYsnEgkgEo_Nz8AjCH3vwCOFhAAFgBagJTVnIIT0gyT0FWQk4KLwjBpgESBDI0MzEYkgEg8pQBKPXg_AIw7eH8AjhYQAFYAWoCU1ZyCE9IMk9BVUJOCmEKLwjBpgESBDMzMTUY8pQBIJJoKLn8_AIwqP38AjhYQABYAWoCU1ZyCFFIMk9BVUJOCi4IwaYBEgQzMzQ3GJJoILJxKMb9_AIwtf78AjhYQAFYAWoCU1ZyCE9INE9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ## Find the cheapest month to fly from San Francisco (SFO) to Santa Rosa (STS) ### February is typically the cheapest month to fly From CA $224 - CA $665 per traveller. Flight from San Francisco to Santa Rosa (SFO - STS) route information | Origin airport | San Francisco Intl. | | --- | --- | | Destination airport | Sonoma County | | Roundtrip price | CA $367 | | Distance | 105 km | ## San Francisco to Windsor Flights **The easy way to book your flights from San Francisco to Santa Rosa**  With Expedia, it’s simple to find and book flights to Santa Rosa from San Francisco whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Sonoma County, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from San Francisco to Santa Rosa today, tomorrow, or this week.   **Save dollars with cheap flights from San Francisco Intl., SFO to Sonoma County, STS**  Sort your search results by price to find great deals on your flight from San Francisco to Santa Rosa—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Santa Rosa from San Francisco currently is just CA $367 rising to CA $485.   Here are more money-saving tips:  - Fly in November when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Santa Rosa   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Santa Rosa from San Francisco**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Santa Rosa with Expedia today. ## Frequently asked questions ### How much is a flight from San Francisco Intl. Airport (SFO) to STS? > Pack your bags, because round-trip journeys from San Francisco Airport to Sonoma County Airport start from CA $367. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to lock in the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to Sonoma County Airport? > Most flights can be cancelled online, but whether or not you incur a fee depends on your airline. If you do need to cancel your escape, follow the instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from San Francisco Intl. Airport (SFO) to Sonoma County Airport that have flexible change policies? > Use our "No change fees" filter to find flexible travel options for your flight from SFO to STS. This allows you to lock in a great deal in advance and still have the freedom to make changes without any extra fees. Keep in mind that you'll need to cover the fare difference. ### How many hours is the flight from San Francisco Airport to Sonoma County Airport (STS)? > Lasting around 3 hours and 34 minutes, the flight between San Francisco Airport and STS is a good opportunity to do some last-minute trip planning. Why not use some of this time to read up on what to do in Windsor? ### How far is the flight from San Francisco Airport to Sonoma County Airport? > The distance from San Francisco Intl. Airport (SFO) (SFO) to Sonoma County Airport (STS) is only 110 kilometres. You'll be disembarking the plane and grabbing your bags from the carousel before you know it. ### Which airlines fly direct from San Francisco Airport to Sonoma County Airport? > United Airlines (UA) is a top option. It offers 0 flights from San Francisco Airport to STS each month. If you'd like more options, have a look at the ticket prices from Alaska Airlines (AS). This airlines operates 0 flights a month between these airports. ### Are SFO to Sonoma County Airport (STS) flight tickets cheaper when they're purchased at the last minute? > It is possible to pick up amazing last-minute deals from San Francisco Airport to Sonoma County Airport (STS), but it's also possible to miss out altogether! As many airlines publish prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can rest assured you're always seeing the latest offers. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Dortmund to Napa](https://www.expedia.ca/lp/flights/1066/6141/dortmund-to-napa) - [Flights from Grand Forks to Napa](https://www.expedia.ca/lp/flights/1312/6141/grand-forks-to-napa) - [Flights from Grand Junction to Napa](https://www.expedia.ca/lp/flights/1331/6141/grand-junction-to-napa) - [Flights from Great Falls to Napa](https://www.expedia.ca/lp/flights/1392/6141/great-falls-to-napa) - [Flights from Guayaquil to Napa](https://www.expedia.ca/lp/flights/1414/6141/guayaquil-to-napa) - [Flights from Hilo to Napa](https://www.expedia.ca/lp/flights/1643/6141/hilo-to-napa) - [Flights from Atlanta to Santa Rosa](https://www.expedia.ca/lp/flights/178232/3288/atlanta-to-santa-rosa) - [Flights from Chicago to Napa Valley](https://www.expedia.ca/lp/flights/178248/180046/chicago-to-napa-valley) - 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