Title: CA $864 Cheap Flights from Ottawa (YOW) to London (LHR) - Expedia.ca ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $864 Cheap Flights from Ottawa (YOW) to London (LHR) [View CA $864 flight on Wed, Feb 11, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YOW,to:LHR,departure:11/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:863.01&airProductToken=AQpjCjAI0IgBEgMxNTgY2LMBIJjOASiE8YQDMM_xhAM4WEAAWAFqA0JBR3IITExYMEM0TTUKLwjCggESAjk4GJjOASDriQEo2faEAzCC-oQDOExAAVgBagNCQUdyCExMWDBDNE01EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) - [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 Ottawa International Airport (YOW) to Heathrow Airport (LHR) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Aer Lingus](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EI.svg) Aer Lingus [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EI"}}]) - ![Virgin Atlantic](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_VS.svg) Virgin Atlantic [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![LOT-Polish Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LO.svg) LOT-Polish Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LO"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![Austrian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_OS.svg) Austrian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:yow,to:lhr,departure:23/11/2025TANYT&leg2=from:lhr,to:yow,departure:30/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"OS"}}]) - ![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 Ottawa (YOW) to London (LHR) Prices were available within the past 7 days and start at CA $864 for one-way flights and CA $636 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Sun, Nov 23 - Wed, Dec 3 YOW Ottawa LHR London CA $636 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:23/11/2025TANYT&leg2=from:LHR,to:YOW,departure:03/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:635.57&airProductToken=AQqAAQo-CNamARIENjY3NBjYswEg4jAovPD9AjDq8_0COFRAAFgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzQKPgjWpgESBDY2NjIY4jAg64kBKKv0_QIwgPX9AjhUQAFYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2NjYyCoABCj4I1qYBEgQ2NjU3GOuJASDiMCjf3v4CMK_f_gI4VEAAWAFqBUxJR0hUcghPTE4zNExCVXoKCMGMARIENjY1Nwo-CNamARIENjY3NRjiMCDYswEov-f-AjCa6_4COFRAAVgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzUSCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Sun, Nov 23 - Wed, Dec 3 YOW Ottawa LHR London CA $672 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:23/11/2025TANYT&leg2=from:LHR,to:YOW,departure:03/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:671.57&airProductToken=AQpnCjEIwYwBEgMzMjcY2LMBIOIwKLzw_QIw6vP9AjhWQABYAWoFTElHSFRyCFZMTjM0TEJVCjIIwYwBEgQxMjgwGOIwIOuJASiu-P0CMIP5_QI4TEABWAFqBUxJR0hUcghWTE4zNExCVQqAAQo-CNamARIENjY1NxjriQEg4jAo397-AjCv3_4COFRAAFgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NTcKPgjWpgESBDY2NzUY4jAg2LMBKL_n_gIwmuv-AjhUQAFYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2Njc1EgoIARABGAEqAkFGGAEiBAgBEAEoAigDKAQwAQ) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, Nov 23 - Wed, Dec 3 YOW Ottawa LHR London CA $716 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:23/11/2025TANYT&leg2=from:LHR,to:YOW,departure:03/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:715.07&airProductToken=AQqpAQo-CMuYARIEMjA3ORjYswEg4jAovPD9AjDq8_0COFZAAFgBagVMSUdIVHIIVkxOMzRMQlV6CgjBjAESBDIwNzkKMgjLmAESBDE0MDIY4jAggJMBKIX1_QIw2vX9AjhMQAFYAWoFTElHSFRyCFZMTjM0TEJVCjMIy5gBEgQxMDA5GICTASDriQEojvf9AjDe9_0COExAAVgBagVMSUdIVHIIVkxOMzRMQlUKgAEKPgjWpgESBDY2NTcY64kBIOIwKN_e_gIwr9_-AjhUQABYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2NjU3Cj4I1qYBEgQ2Njc1GOIwINizASi_5_4CMJrr_gI4VEABWAFqBUxJR0hUcghPTE4zNExCVXoKCMGMARIENjY3NRIKCAEQARgBKgJLTBgBIgQIARABKAIoAygEMAE) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Fri, Dec 5 - Tue, Dec 9 YOW Ottawa LHR London CA $784 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:05/12/2025TANYT&leg2=from:LHR,to:YOW,departure:09/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:783.67&airProductToken=AQpnCjEIwYwBEgMzMjcY2LMBIOIwKLz3_gIw6vr-AjhWQABYAWoFTElHSFRyCFZMTjM0TEJVCjIIwYwBEgQxMTgwGOIwIOuJASicgP8CMOyA_wI4TEABWAFqBUxJR0hUcghWTE4zNExCVQpnCjIIwYwBEgQxNjgxGOuJASDiMCicnv8CMPGe_wI4TEAAWAFqBUxJR0hUcghWTE4zNExCVQoxCMGMARIDMzI4GOIwINizASjfn_8CMLqj_wI4VkABWAFqBUxJR0hUcghWTE4zNExCVRIKCAEQARgBKgJBRhgBIgQIARABKAIoAygEMA0) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Thu, Dec 4 - Thu, Dec 11 YOW Ottawa LHR London CA $785 Roundtrip found 2 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:04/12/2025TANYT&leg2=from:LHR,to:YOW,departure:11/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:784.77&airProductToken=AQqAAQo-CNamARIENjY3NBjYswEg4jAonOz-AjDK7_4COFRAAFgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzQKPgjWpgESBDY2NjIY4jAg64kBKIvw_gIw4PD-AjhUQAFYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2NjYyCoABCj4I1qYBEgQ2NjY5GOuJASDiMCjXtP8CMKe1_wI4VEAAWAFqBUxJR0hUcghPTE4zNExCVXoKCMGMARIENjY2OQo-CNamARIENjY3NRjiMCDYswEon7b_AjD6uf8COFRAAVgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzUSCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Mon, Feb 9 - Fri, Feb 13 YOW Ottawa LHR London CA $793 Roundtrip found 2 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:09/02/2026TANYT&leg2=from:LHR,to:YOW,departure:13/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:792.77&airProductToken=AQqAAQo-CNamARIENjY3NBjYswEg4jAo_N2EAzCq4YQDOFRAAFgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzQKPgjWpgESBDY2NzcY4jAg64kBKObhhAMwu-KEAzhUQAFYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2Njc3CoABCj4I1qYBEgQ2NjU5GOuJASDiMCi8g4UDMIyEhQM4VEAAWAFqBUxJR0hUcghPTE4zNExCVXoKCMGMARIENjY1OQo-CNamARIENjY3NRjiMCDYswEon4aFAzD6iYUDOFRAAVgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzUSCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Sun, Nov 16 - Mon, Nov 24 YOW Ottawa LHR London CA $803 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:16/11/2025TANYT&leg2=from:LHR,to:YOW,departure:24/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:802.67&airProductToken=AQqAAQo-CNamARIENjY3NBjYswEg4jAo3KH9AjCKpf0COFRAAFgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzQKPgjWpgESBDY2NjQY4jAg64kBKJ-o_QIw-aj9AjhUQAFYAWoFTElHSFRyCE9MTjM0TEJVegoIwYwBEgQ2NjY0CoABCj4I1qYBEgQ2NjU3GOuJASDiMCi_-f0CMI_6_QI4VEAAWAFqBUxJR0hUcghPTE4zNExCVXoKCMGMARIENjY1Nwo-CNamARIENjY3NRjiMCDYswEon4L-AjD6hf4COFRAAVgBagVMSUdIVHIIT0xOMzRMQlV6CgjBjAESBDY2NzUSCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Tue, Jan 13 - Mon, Jan 19 YOW Ottawa LHR London CA $810 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:13/01/2026TANYT&leg2=from:LHR,to:YOW,departure:19/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:809.27&airProductToken=AQpGCiEI1qYBEgQ2Njc0GNizASDiMCicroIDMMqxggM4VEAAWAEKIQjWpgESBDY2NzcY4jAg64kBKIayggMw27KCAzhUQAFYAQpGCiEI1qYBEgQ2NjU1GOuJASDiMCio8IIDMPjwggM4VEAAWAEKIQjWpgESBDY2NzUY4jAg2LMBKJ_4ggMw-vuCAzhUQAFYARIKCAEQARgBKgJWUxgBIgQIARABKAQwAQ) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, Nov 19 - Sun, Nov 23 YOW Ottawa LHR London CA $926 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:19/11/2025TANYT&leg2=from:LHR,to:YOW,departure:23/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:925.77&airProductToken=AQpECkIIzJABEgQ2NjkzGNizASDriQEoz8X9AjDQyP0COEtAAFgBaghFQ09MSUdIVHIIS0oxQVhVQlF6CgjBhgESBDY2OTMKNAoyCMGGARIDODg5GOuJASDYswEo0Ov9AjCS7_0COEtAAFgBagVCQVNJQ3IIS0oxQVhVQlESCggCEAEYAioCQUMYASIECAEQASgCKAMoBDAB) ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Wed, Nov 19 - Wed, Nov 26 YOW Ottawa LHR London CA $943 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YOW,to:LHR,departure:19/11/2025TANYT&leg2=from:LHR,to:YOW,departure:26/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:942.11&airProductToken=AQqIAQpCCM-mARIEODE5NBjYswEgmM4BKLnE_QIwisX9AjhLQABYAWoIRUNPTElHSFRyCEtKMUFYVUJRegoIwYYBEgQ4MTk0CkIIz6YBEgQ4Mjg4GJjOASDriQEokMb9AjDIyf0COEtAAVgBaghFQ09MSUdIVHIIS0oxQVhVQlF6CgjBhgESBDgyODgKrQEKNAjPpgESAzMzOBjriQEglSIo7ZD-AjD0kf4COEtAAFgBaghFQ09MSUdIVHIIS0oxQVhVQlEKMgjPpgESAjU1GJUiIJhdKMSX_gIw5Zv-AjhLQAFYAWoIRUNPTElHSFRyCEtKMUFYVUJRCkEIz6YBEgQ4MjEzGJhdINizASiCnv4CMLSe_gI4S0ABWAFqCEVDT0xJR0hUcghLSjFBWFVCUXoKCMGGARIEODIxMxIKCAIQARgCKgJPUxgBIgQIARABKAIoAygEMAE) ## Find the cheapest month to fly from Ottawa (YOW) to London (LHR) ### February is typically the cheapest month to fly From CA $804 - CA $1,942 per traveller. ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:LGW,departure:23/11/2025TANYT&leg2=from:LGW,to:YOW,departure:06/12/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick Cheapest 52 min [Flights from CA $770](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:LGW,departure:23/11/2025TANYT&leg2=from:LGW,to:YOW,departure:06/12/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:LCY,departure:23/11/2025TANYT&leg2=from:LCY,to:YOW,departure:04/12/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LCY London City Closest 21 min [Flights from CA $1,014](https://www.expedia.ca/Flights-Search?leg1=from:YOW,to:LCY,departure:23/11/2025TANYT&leg2=from:LCY,to:YOW,departure:04/12/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from Ottawa International Airport to Heathrow Airport? > The lowest price advertised for a round-trip flight from YOW to Heathrow Airport is CA $636. But you better get a move on. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from YOW to Heathrow Airport? > Every air carrier has its own terms and conditions. If you decide to cancel your vacation, head to our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Ottawa Intl. Airport to LHR that have flexible change policies? > Flights from YOW to London Heathrow offering flexible change policies are available with many carriers. Simply use our "No change fees" filter during your search. You'll only need to cover the fare difference, without any additional fees to worry about. ### How many hours is the flight from Macdonald-Cartier Intl. Airport (YOW) to Heathrow Airport (LHR)? > From Ottawa Intl. Airport to Heathrow Airport, you'll be in the sky for approximately 10 hours and 23 minutes. If you've been wanting to get stuck into that novel, now's the time to do it. ### How far is the flight from YOW to Heathrow Airport? > The distance is around 5,400 kilometres, so pack your carry-on luggage with everything you need to make the long journey comfortable. Not sure what to take on board your Ottawa to Hounslow flight? Earplugs, a sleep mask and a travel pillow are among the essentials. ### Which airlines fly direct from Macdonald-Cartier Intl. Airport (YOW) to Heathrow Airport? > Air Canada (AC) is a top choice. It operates 0 flights between YOW and LHR each month. After some more options? Check out the seats available with American Airlines (AA). This carrier offers 0 flights a month between these destinations. ### Are YOW to LHR flight tickets cheaper when they're purchased at the last minute? > It is possible to pick up a fantastic last-minute deal from Ottawa International Airport to Heathrow Airport, but it's also possible to miss out entirely! As many airlines publish prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares carrier prices and updates flight deals regularly, so you can be certain you're always seeing the latest offers. ## Travel information | Origin airport | Macdonald-Cartier Intl. | | --- | --- | | Destination airport | Heathrow | | Airlines serving | Aer Lingus, Air Canada, Air France, Austrian Airlines, Brussels Airlines, Delta, KLM, LOT-Polish Airlines, Lufthansa, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic | | Roundtrip price | CA $636 | | Distance | 5315 km | | Average flight time | 6 hours 25 mins | ## Book with confidence ### Ottawa to London Flights **The easy way to book your flights from Ottawa to London**  With Expedia, it’s simple to find and book flights to London from Ottawa 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 Heathrow, 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 Ottawa to London today, tomorrow, or this week.   **Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to Heathrow, LHR**  Sort your search results by price to find great deals on your flight from Ottawa to London—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to London from Ottawa currently is just CA $636 rising to CA $1,018.   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 London   - 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 London from Ottawa**  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. 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