Title: CA $539 Cheap Air Transat fights from Montreal to London - 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 $539 Cheap Air Transat fights from Montreal (YMQ) to London (LON) [View CA $539 flight on Sun, Jul 5, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YUL,to:LGW,departure:05/07/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:538.41&airProductToken=AQoxCi8I1KYBEgM3MjgYmF0gy7EBKJ3KkQMwss2RAzhQQABYAWoDQkdUcghQWkJHVDFDTxIKCAEQARgBKgJUUxgBIgQIARABKAIoAygEMA0) - [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 Transat flights from Montreal to London (YMQ→LON) Prices were available within the past 7 days and start at CA $539 for one-way flights and CA $743 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Thu, May 14 - Fri, May 29 YUL Montreal LGW London CA $743 Roundtrip found 4 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:14/05/2026TANYT&leg2=from:LGW,to:YUL,departure:29/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:742.78&airProductToken=AQowCi4I1KYBEgM3MjgYmF0gy7EBKJ2BjQMwsoSNAzhYQABYAWoDQkdUcgdYMEJHVDJDCjAKLgjUpgESAzcyORjLsQEgmF0o26KOAzCnpo4DOFhAAFgBagNCR1RyB1gwQkdUMkMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Sat, May 2 - Fri, May 8 YUL Montreal LGW London CA $752 Roundtrip found 7 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:02/05/2026TANYT&leg2=from:LGW,to:YUL,departure:08/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:751.78&airProductToken=AQowCi4I1KYBEgM3MjgYmF0gy7EBKJ36iwMwsv2LAzhYQABYAWoDQkdUcgdYMEJHVDJDCjAKLgjUpgESAzcyORjLsQEgmF0ou7aMAzCHuowDOFhAAFgBagNCR1RyB1gwQkdUNEMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Thu, May 14 - Fri, May 29 YUL Montreal LGW London CA $755 Roundtrip found 4 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:14/05/2026TANYT&leg2=from:LGW,to:YUL,departure:29/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:754.08&airProductToken=AQpuCjsI1KYBEgQ3ODAyGJhdIJjOASiF-owDMN36jAM4UUAAWAFqA0JHVHIHWDBCR1QyQ3oKCNCIARIENzgwMgovCNSmARIDMjgyGJjOASDLsQEoloCNAzC_g40DOFFAAVgBagNCR1RyB1gwQkdUMkMKMAouCNSmARIDNzI5GMuxASCYXSjboo4DMKemjgM4WEAAWAFqA0JHVHIHWDBCR1QyQxIKCAEQARgBKgJUUxgBIgQIARABKAIoAygEMA0) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Tue, Feb 10 - Sat, Feb 21 YUL Montreal LGW London CA $759 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:10/02/2026TANYT&leg2=from:LGW,to:YUL,departure:21/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:758.77&airProductToken=AQpuCjsI1KYBEgQ3ODAxGJhdIJjOASih6YQDMP_phAM4UUAAWAFqA0JHVHIHWDBCR1Q0Q3oKCNCIARIENzgwMQovCNSmARIDMTIyGJjOASDLsQEom-uEAzDJ7oQDOFFAAVgBagNCR1RyB1gwQkdUNEMKbgovCNSmARIDMTIzGMuxASCYzgEo_N-FAzDw44UDOFhAAFgBagNCR1RyB1gwQkdUNEMKOwjUpgESBDc4MDUYmM4BIJhdKNrnhQMwr-iFAzhYQAFYAWoDQkdUcgdYMEJHVDRDegoI0IgBEgQ3ODA1EgoIARABGAEqAlRTGAEiBAgBEAEoAigDKAQwDQ) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Sat, May 9 - Sun, May 17 YUL Montreal LGW London CA $763 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:09/05/2026TANYT&leg2=from:LGW,to:YUL,departure:17/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:762.78&airProductToken=AQowCi4I1KYBEgM3MjgYmF0gy7EBKP3IjAMwksyMAzhWQABYAWoDQkdUcgdWMEJHVDJDCjAKLgjUpgESAzcyORjLsQEgmF0o25uNAzCnn40DOFhAAFgBagNCR1RyB1gwQkdUMkMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Fri, May 22 - Wed, May 27 YUL Montreal LGW London CA $766 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:22/05/2026TANYT&leg2=from:LGW,to:YUL,departure:27/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:765.58&airProductToken=AQphCi4I1KYBEgM3NTAYmF0gmM4BKMPajQMwmNuNAzhYQABYAWoDQkdUcgdYMEJHVDJDCi8I1KYBEgMyODIYmM4BIMuxASi25Y0DMN_ojQM4WEABWAFqA0JHVHIHWDBCR1QyQwpuCi8I1KYBEgMxMjMYy7EBIJjOASjcjI4DMLyQjgM4WEAAWAFqA0JHVHIHWDBCR1QyQwo7CNSmARIENzgwMxiYzgEgmF0ouJiOAzCKmY4DOFhAAVgBagNCR1RyB1gwQkdUMkN6CgjQiAESBDc4MDMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Wed, Apr 22 - Fri, May 8 YUL Montreal LGW London CA $773 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:22/04/2026TANYT&leg2=from:LGW,to:YUL,departure:08/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:772.28&airProductToken=AQpuCjsI1KYBEgQ3ODI4GJhdIJjOASi4iIsDMJSJiwM4UUAAWAFqA0JHVHIHWDBCR1Q0Q3oKCNCIARIENzgyOAovCNSmARIDMTIyGJjOASDLsQEo-4mLAzCpjYsDOFFAAVgBagNCR1RyB1gwQkdUNEMKMAouCNSmARIDNzI5GMuxASCYXSi7towDMIe6jAM4WEAAWAFqA0JHVHIHWDBCR1Q0QxIKCAEQARgBKgJUUxgBIgQIARABKAIoAygEMA0) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Sat, Mar 7 - Sat, Mar 14 YUL Montreal LGW London CA $779 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:07/03/2026TANYT&leg2=from:LGW,to:YUL,departure:14/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:778.77&airProductToken=AQpuCjsI1KYBEgQ3ODAyGJhdIJjOASjB_YYDMJ3-hgM4UUAAWAFqA0JHVHIHWDBCR1Q0Q3oKCNCIARIENzgwMgovCNSmARIDMTIyGJjOASDLsQEou4SHAzDph4cDOFFAAVgBagNCR1RyB1gwQkdUNEMKYQovCNSmARIDMTIzGMuxASCYzgEonMyHAzCQ0IcDOFZAAFgBagNCR1RyB1YwQkdUNEMKLgjUpgESAzQ3MRiYzgEgmF0o-NeHAzDN2IcDOFZAAVgBagNCR1RyB1YwQkdUNEMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Wed, Mar 25 - Thu, Apr 16 YUL Montreal LGW London CA $784 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:25/03/2026TANYT&leg2=from:LGW,to:YUL,departure:16/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:783.58&airProductToken=AQpuCjsI1KYBEgQ3ODgyGJhdIJjOASiXyYgDMPPJiAM4UUAAWAFqA0JHVHIHWDBCR1Q0Q3oKCNCIARIENzg4MgovCNSmARIDMTIyGJjOASDLsQEo-86IAzCp0ogDOFFAAVgBagNCR1RyB1gwQkdUNEMKbgovCNSmARIDMTIzGMuxASCYzgEovL-KAzCww4oDOFhAAFgBagNCR1RyB1gwQkdUNEMKOwjUpgESBDc4MDUYmM4BIJhdKN7GigMws8eKAzhYQAFYAWoDQkdUcgdYMEJHVDRDegoI0IgBEgQ3ODA1EgoIARABGAEqAlRTGAEiBAgBEAEoAigDKAQwDQ) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Fri, May 22 - Fri, May 29 YUL Montreal LGW London CA $786 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:22/05/2026TANYT&leg2=from:LGW,to:YUL,departure:29/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:785.58&airProductToken=AQphCi4I1KYBEgM3NTAYmF0gmM4BKMPajQMwmNuNAzhYQABYAWoDQkdUcgdYMEJHVDJDCi8I1KYBEgMyODIYmM4BIMuxASi25Y0DMN_ojQM4WEABWAFqA0JHVHIHWDBCR1QyQwphCi8I1KYBEgMxMjMYy7EBIJjOASico44DMPymjgM4VkAAWAFqA0JHVHIHVjBCR1QyQwouCNSmARIDNzUxGJjOASCYXSjOqI4DMJ6pjgM4VkABWAFqA0JHVHIHVjBCR1QyQxIKCAEQARgBKgJUUxgBIgQIARABKAIoAygEMA0) ![Air Transat](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/TS.gif) Sat, May 9 - Sat, May 16 YUL Montreal LGW London CA $788 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:LGW,departure:09/05/2026TANYT&leg2=from:LGW,to:YUL,departure:16/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:787.98&airProductToken=AQowCi4I1KYBEgM3MjgYmF0gy7EBKP3IjAMwksyMAzhYQABYAWoDQkdUcgdYMEJHVDJDCjAKLgjUpgESAzcyORjLsQEgmF0ou5CNAzCHlI0DOFBAAFgBagNCR1RyB1AwQkdUMkMSCggBEAEYASoCVFMYASIECAEQASgCKAMoBDAN) ## 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:YUL,to:LHR,departure:19/02/2026TANYT&leg2=from:LHR,to:YUL,departure:26/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LHR Heathrow 28 min [Flights from CA $878 ](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:LHR,departure:19/02/2026TANYT&leg2=from:LHR,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:LGW,departure:19/02/2026TANYT&leg2=from:LGW,to:YUL,departure:26/02/2026TANYT&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 $759 ](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:LGW,departure:19/02/2026TANYT&leg2=from:LGW,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:LCY,departure:19/02/2026TANYT&leg2=from:LCY,to:YUL,departure:26/02/2026TANYT&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 $1,052 ](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:LCY,departure:19/02/2026TANYT&leg2=from:LCY,to:YUL,departure:26/02/2026TANYT&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 London (LON) ### September is typically the cheapest month to fly From CA $651 - CA $1,040 per traveller. __Flight from Montreal to London (YUL - LGW) route information__ | Origin airport | Pierre Elliott Trudeau Intl. | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Gatwick | | Airlines serving | Aer Lingus, Air Canada, Air France, Air Transat, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, KLM, Lufthansa, Porter Airlines, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic, WestJet | | Popular airline | TAP Portugal | | Distance | 5217 km | \*Available to Expedia members.