Title: CA $549 Cheap American Airlines fights from Chicago 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 $549 Cheap American Airlines fights from Chicago (CHI) to London (LON) [View CA $549 flight on Sun, May 10, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ORD,to:LHR,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:548.50&airProductToken=AQoyCjAIwYIBEgI4NhiuHCDriQEo0NKMAzCc1owDOEJAAFgBagVCQVNJQ3IIU0xYMEQ0QlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) - [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 - ![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) ## American Airlines flights from Chicago to London (CHI→LON) Prices were available within the past 7 days and start at CA $549 for one-way flights and CA $849 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Tue, Jan 20 - Fri, Jan 30 ORD Chicago LGW London CA $849 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LGW,departure:20/01/2026TANYT&leg2=from:LGW,to:ORD,departure:30/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:848.21&airProductToken=AQqjAQovCMGCARIDOTAzGK4cIEMonv-CAzCLgIMDOEJAAFgBagVCQVNJQ3IIT0xYNEYxQlYKMAjBggESBDI1MjQYQyDzAyjphIMDMI2GgwM4QkABWAFqBUJBU0lDcghPTFg0RjFCVgo-CMGCARIENzAxNBjzAyDLsQEonomDAzCcjYMDOE9AAVgBagVCQVNJQ3IIT0xYNEYxQlZ6CgjCggESBDcwMTQKcwo-CMGCARIENzAxMhjLsQEgzHAoqOiDAzD27IMDOE9AAFgBagVCQVNJQ3IIT0xYNEYxQlZ6CgjCggESBDcwMTIKMQjBggESBDE1ODUYzHAgrhwo8PODAzCu9YMDOEJAAVgBagVCQVNJQ3IIT0xYNEYxQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Tue, Jan 20 - Fri, Jan 30 ORD Chicago LGW London CA $850 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LGW,departure:20/01/2026TANYT&leg2=from:LGW,to:ORD,departure:30/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:849.21&airProductToken=AQqjAQovCMGCARIDOTAzGK4cIEMonv-CAzCLgIMDOEJAAFgBagVCQVNJQ3IIT0xYNEYxQlYKMAjBggESBDI1MjQYQyDzAyjphIMDMI2GgwM4QkABWAFqBUJBU0lDcghPTFg0RjFCVgo-CMGCARIENzAxNBjzAyDLsQEonomDAzCcjYMDOE9AAVgBagVCQVNJQ3IIT0xYNEYxQlZ6CgjCggESBDcwMTQKpAEKPgjBggESBDcwMTIYy7EBIMxwKKjogwMw9uyDAzhPQABYAWoFQkFTSUNyCE9MWDRGMUJWegoIwoIBEgQ3MDEyCjAIwYIBEgQyNDY2GMxwIEMoqu-DAzCp8IMDOEJAAVgBagVCQVNJQ3IIT0xYNEYxQlYKMAjBggESBDI5MDMYQyCuHCi084MDMML0gwM4QkABWAFqBUJBU0lDcghPTFg0RjFCVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, Jan 12 - Mon, Jan 19 ORD Chicago LHR London CA $883 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:12/01/2026TANYT&leg2=from:LHR,to:ORD,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:882.41&airProductToken=AQoyCjAIwYIBEgI4NhiuHCDriQEo-aOCAzDPp4IDOEJAAFgBagVCQVNJQ3IIT0xYNEYxQlYKfwo-CMGCARIEODYwNhjriQEgjBgovPCCAzDN8YIDOE9AAFgBagVCQVNJQ3IIT0xYNEYxQlZ6CgjJhAESBDg2MDYKPQjBggESBDg2NjYYjBggrhwo1PeCAzCn_IIDOE9AAVgBagVCQVNJQ3IIT0xYNEYxQlZ6CgjJhAESBDg2NjYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sun, Mar 8 - Sun, Mar 15 ORD Chicago LGW London CA $927 Roundtrip found 2 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LGW,departure:08/03/2026TANYT&leg2=from:LGW,to:ORD,departure:15/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:926.20&airProductToken=AQpzCjEIwYIBEgQxODkxGK4cIPMDKLGMhwMw1o2HAzhCQABYAWoFQkFTSUNyCE9MWDRGMUJWCj4IwYIBEgQ3MDE0GPMDIMuxASjejocDMNyShwM4T0ABWAFqBUJBU0lDcghPTFg0RjFCVnoKCMKCARIENzAxNApzCj4IwYIBEgQ3MDE1GMuxASDzAyju14cDMMbchwM4T0AAWAFqBUJBU0lDcghPTFc0RjFCVnoKCMKCARIENzAxNQoxCMGCARIEMTM4OBjzAyCuHCiR4ocDMNDjhwM4QkABWAFqBUJBU0lDcghPTFc0RjFCVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sun, Mar 8 - Sun, Mar 15 ORD Chicago LGW London CA $1,020 Roundtrip found 2 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LGW,departure:08/03/2026TANYT&leg2=from:LGW,to:ORD,departure:15/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1019.20&airProductToken=AQpzCjEIwYIBEgQxNTU2GK4cIMxwKNyIhwMw_4mHAzhCQABYAWoFQkFTSUNyCE5MWDBDMUJWCj4IwYIBEgQ3MDExGMxwIMuxASiOjocDMIKShwM4TkABWAFqBUJBU0lDcghOTFgwQzFCVnoKCMKCARIENzAxMQpzCj4IwYIBEgQ3MDE1GMuxASDzAyju14cDMMbchwM4T0AAWAFqBUJBU0lDcghPTFc0RjFCVnoKCMKCARIENzAxNQoxCMGCARIEMTM4OBjzAyCuHCiR4ocDMNDjhwM4QkABWAFqBUJBU0lDcghPTFc0RjFCVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ## Find the cheapest month to fly from Chicago (CHI) to London (LON) ### November is typically the cheapest month to fly From CA $629 - CA $1,070 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:ORD,to:LHR,departure:03/01/2026TANYT&leg2=from:LHR,to:ORD,departure:16/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LHR Heathrow Cheapest 28 min [Flights from CA $1,563 ](https://www.expedia.ca/Flights-Search?leg1=from:ORD,to:LHR,departure:03/01/2026TANYT&leg2=from:LHR,to:ORD,departure:16/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) __Flight from Chicago to London (ORD - LGW) route information__ | Origin airport | O'Hare Intl. | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Destination airport | Gatwick | | Airlines serving | Aer Lingus, Air Canada, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic | | Popular airline | Aer Lingus | | Distance | 6341 km | \*Available to Expedia members.