Title: CA $257 Cheap Air Canada fights from Montreal to San Diego - Expedia.ca ![](https://images.trvl-media.com/place/3073/476a7863-1b66-47b5-9758-1dc7b3787493.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3073/476a7863-1b66-47b5-9758-1dc7b3787493.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $257 Cheap Air Canada fights from Montreal (YMQ) to San Diego (SAN) [View CA $257 flight on Tue, Mar 31, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YUL,to:SAN,departure:31/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:257.00&airProductToken=AQpnCjEIwYYBEgM0ODEYmF0gmM4BKNiKiQMwsIuJAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBCjIIwYYBEgQxMDc3GJjOASCSaCibjIkDMN6OiQM4R0ABWAFqBUJBU0lDcghHTkE0QTlCQRIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMA0) - [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 - ![](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\* - ![](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\* - ![](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) ## Air Canada flights from Montreal to San Diego (YMQ→SAN) Prices were available within the past 7 days and start at CA $257 for one-way flights and CA $418 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, Sep 14 - Sun, Sep 27 YUL Montreal SAN San Diego CA $418 Roundtrip found 15 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:14/09/2026TANYT&leg2=from:SAN,to:YUL,departure:27/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:417.48&airProductToken=AQoyCjAIwYYBEgM1MTMYmF0gkmgo-eaXAzDY6ZcDOEdAAFgBagVCQVNJQ3IIR05BNEE5QkEKMgowCMGGARIDNTEyGJJoIJhdKMj1mAMwj_iYAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBEgoIAhABGAIqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, Sep 21 - Mon, Sep 28 YUL Montreal SAN San Diego CA $418 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:21/09/2026TANYT&leg2=from:SAN,to:YUL,departure:28/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:417.52&airProductToken=AQoyCjAIwYYBEgM1MTMYmF0gkmgo2bWYAzC4uJgDOEdAAFgBagVCQVNJQ3IIR05BNEE5QkEKMgowCMGGARIDNTEyGJJoIJhdKOiAmQMwr4OZAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBEgoIAhABGAIqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, May 6 - Sun, May 10 YUL Montreal SAN San Diego CA $429 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:06/05/2026TANYT&leg2=from:SAN,to:YUL,departure:10/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:428.75&airProductToken=AQpoCjIIwYYBEgQ3ODgzGJhdIJjOASicn4wDMPSfjAM4R0AAWAFqBUJBU0lDcghHTkE0QTlCQQoyCMGGARIEMTA3NxiYzgEgkmgow6GMAzCGpIwDOEdAAVgBagVCQVNJQ3IIR05BNEE5QkEKMgowCMGGARIDNTEyGJJoIJhdKMjOjAMwk9GMAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBEgoIAhABGAIqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, May 6 - Sun, May 10 YUL Montreal SAN San Diego CA $441 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:06/05/2026TANYT&leg2=from:SAN,to:YUL,departure:10/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:440.05&airProductToken=AQpnCjEIwYYBEgM0MDEYmF0gmM4BKJmgjAMw8aCMAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBCjIIwYYBEgQxMDc3GJjOASCSaCjDoYwDMIakjAM4R0ABWAFqBUJBU0lDcghHTkE0QTlCQQpnCjIIwYYBEgQxMDc4GJJoIJjOASi_0YwDMOfTjAM4R0AAWAFqBUJBU0lDcghHTkE0QTlCQQoxCMGGARIDNDMyGJjOASCYXSjj1IwDMLTVjAM4R0ABWAFqBUJBU0lDcghHTkE0QTlCQRIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMA0) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sat, Apr 25 - Tue, Apr 28 YUL Montreal SAN San Diego CA $450 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:25/04/2026TANYT&leg2=from:SAN,to:YUL,departure:28/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:449.18&airProductToken=AQpnCjEIwYYBEgM0ODEYmF0gmM4BKPijiwMw1aSLAzhHQABYAWoFQkFTSUNyCEdOQTRBNEJBCjIIwYYBEgQxMDc3GJjOASCSaCjKpYsDMI2oiwM4R0ABWAFqBUJBU0lDcghHTkE0QTRCQQpsCjQI1YIBEgQxNDU3GJJoIK4cKOrOiwMw39CLAzhOQABYAWoIRUNPQkFTSUNyCEdOQTRBMkJOCjQI1YIBEgQzNTM2GK4cIJhdKP3RiwMwkNOLAzhOQAFYAWoIRUNPQkFTSUNyCEdOQTRBMkJOEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Sep 15 - Fri, Sep 25 YUL Montreal SAN San Diego CA $511 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:SAN,departure:15/09/2026TANYT&leg2=from:SAN,to:YUL,departure:25/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:510.96&airProductToken=AQoyCjAIwYYBEgM1MTMYmF0gkmgomfKXAzD49JcDOEdAAFgBagVCQVNJQ3IIR05BNEE5QkEKMgowCMGGARIDNTEyGJJoIJhdKIjfmAMwz-GYAzhHQABYAWoFQkFTSUNyCEdOQTRBOUJBEgoIAhABGAIqAkFDGAEiBAgBEAEoAigDKAQwAQ) ## Alternative airports near San Diego Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:TIJ,departure:20/02/2026TANYT&leg2=from:TIJ,to:YUL,departure:26/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) TIJ General Abelardo L. Rodriguez Intl. 26 min [Flights from CA $918 ](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:TIJ,departure:20/02/2026TANYT&leg2=from:TIJ,to:YUL,departure:26/02/2026TANYT&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:YUL,to:CLD,departure:20/02/2026TANYT&leg2=from:CLD,to:YUL,departure:27/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) CLD McClellan-Palomar Cheapest 38 min [Flights from CA $433 ](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:CLD,departure:20/02/2026TANYT&leg2=from:CLD,to:YUL,departure:27/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from Montreal (YMQ) to San Diego (SAN) ### June is typically the cheapest month to fly From CA $349 - CA $649 per traveller. __Flight from Montreal to San Diego (YUL - SAN) route information__ | Origin airport | Pierre Elliott Trudeau Intl. | | ------------------- | ----------------------------------------------------- | | Destination airport | San Diego Intl. | | Airlines serving | Air Canada, American Airlines, Delta, United, WestJet | | Popular airline | American Airlines | | Distance | 3928 km | \*Available to Expedia members.