Title: CA $437 Cheap Flights from Chicago (CHI) 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 $437 Cheap Flights from Chicago (CHI) to London (LHR) [View CA $437 flight on Fri, Apr 3, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ORD,to:LHR,departure:03/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:436.55&airProductToken=AQpgCi0IwmwSAzMxMhiuHCDBkwEoo66JAzC7r4kDOExAAFgBagJETnIITUw4TEJWTDEKLwjCbBIEMTYyMBjBkwEg64kBKKayiQMwyrWJAzhMQAFYAWoCRE5yCE1MOExCVkwxEgoIARABGAEqAkI2GAEiBAgBEAEoAigEKAYwAQ) - [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 Chicago to London (LHR-Heathrow) - ![](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:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![](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:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EI"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SK.svg) SAS [](https://www.expedia.ca/Flights-Search?leg1=from:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SK"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TK.svg) Turkish Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TK"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SN.svg) Brussels Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TP.svg) TAP Portugal [](https://www.expedia.ca/Flights-Search?leg1=from:CHI,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:CHI,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TP"}}]) - ![](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) ## Cheap flights from Chicago (CHI) to London (LHR) Prices were available within the past 7 days and start at CA $437 for one-way flights and CA $716 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Mon, Feb 23 - Fri, Feb 27 ORD Chicago LHR London CA $716 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:23/02/2026TANYT&leg2=from:LHR,to:ORD,departure:27/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:716.00&airProductToken=AQpDCh8IxpIBEgM4NTIYrhwgiikovvyFAzC1_4UDOE5AAFgBCiAIxpIBEgM0NTAYiikg64kBKOf_hQMwqoGGAzhOQAFYAQpDCiAIxpIBEgM0NTEY64kBIIopKN-jhgMwoqWGAzhOQABYAQofCMaSARIDODUzGIopIK4cKN6lhgMw-KiGAzhOQAFYARIKCAEQARgBKgJGSRgBIgQIARABKAQwAQ) ![Scandinavian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SK.gif) Sun, Feb 22 - Thu, Feb 26 ORD Chicago LHR London CA $792 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:ORD,departure:26/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:791.80&airProductToken=AQpmCjAI05YBEgM5NDQYrhwg4jsoxvGFAzC19YUDOFRAAFgBagVMaWdodHIIVExYQTZHSFQKMgjTlgESBDE1MDEY4jsg64kBKJz6hQMwlPuFAzhUQAFYAWoFTGlnaHRyCFRMWEE2R0hUCmUKMQjTlgESAzUwMBjriQEg4jso8JWGAzDeloYDOFRAAFgBagVMaWdodHIIVExYQTZHSFQKMAjTlgESAzk0MxjiOyCuHCiKmYYDMLWdhgM4VEABWAFqBUxpZ2h0cghUTFhBNkdIVBIKCAEQARgBKgJTSxgBIgQIARABKAIoAygEMA8) ![Aer Lingus](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EI.gif) Sun, Feb 22 - Tue, Mar 3 ORD Chicago LHR London CA $846 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:ORD,departure:03/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:845.14&airProductToken=AQpjCi8IxZIBEgMxMjQYrhwggw0otPKFAzDn9YUDOE9AAFgBagRTQVZScghPTFg0RDFCVgowCMWSARIDMTY4GIMNIOuJASjX94UDMKf4hQM4T0ABWAFqBFNBVlJyCE9MWDREMUJWCmMKMAjFkgESAzE1MRjriQEggw0o1s6GAzCmz4YDOEdAAFgBagRTQVZScghPTFg0RDFCVgovCMWSARIDMTI1GIMNIK4cKOjShgMw69aGAzhPQAFYAWoEU0FWUnIIT0xYNEQxQlYSCggBEAEYASoCRUkYASIECAEQASgCKAMoBDAN) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Mar 11 - Tue, Mar 17 ORD Chicago LHR London CA $854 Roundtrip found 6 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:11/03/2026TANYT&leg2=from:LHR,to:ORD,departure:17/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:853.40&airProductToken=AQoiCiAI1YIBEgM5MjkYrhwg64kBKJmvhwMwg7OHAzhMQABYAQpGCiII1YIBEgQ5OTI0GOuJASChpAEo2uuHAzCb7IcDOExAAFgBCiAI1YIBEgM5NzMYoaQBIK4cKObshwMwgvGHAzhMQAFYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Tue, Feb 17 - Mon, Mar 2 ORD Chicago LHR London CA $871 Roundtrip found 10 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:17/02/2026TANYT&leg2=from:LHR,to:ORD,departure:02/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:870.56&airProductToken=AQppCjEIzLABEgE5GK4cILk8KJK5hQMwpL2FAzhMQABYAWoIRUNPTElHSFRyCExMWDA2VEJRCjQIzLABEgMzMzIYuTwg64kBKP69hQMw7L6FAzhMQAFYAWoIRUNPTElHSFRyCExMWDA2VEJRCmkKNAjMsAESAzMzORjriQEguTwolcmGAzD5yYYDOExAAFgBaghFQ09MSUdIVHIITExYMDZUQlEKMQjMsAESATgYuTwgrhwo2tCGAzC81YYDOExAAVgBaghFQ09MSUdIVHIITExYMDZUQlESCggBEAEYASoCTFgYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Mon, Mar 2 - Mon, Mar 9 ORD Chicago LHR London CA $889 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:02/03/2026TANYT&leg2=from:LHR,to:ORD,departure:09/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:888.25&airProductToken=AQpvCjYIxJgBEgQ1NTk0GK4cIMGTASipyYYDMLvKhgM4RUAAWAFqCU1BSU5CQVNJQ3IIVkxYNDZOQkwKNQjEmAESAjU4GMGTASDriQEoisuGAzCazoYDOEVAAVgBaglNQUlOQkFTSUNyCFZMWDQ2TkJMCrMBCkIIxJgBEgQ4NjE5GOuJASDiMCjflocDMK-XhwM4RUAAWAFqCU1BSU5CQVNJQ3IIVkxYNDZOQkx6CgjBjAESBDg2MTkKNQjEmAESAzIyORjiMCDjtAEomp6HAzDAoocDOEVAAVgBaglNQUlOQkFTSUNyCFZMWDQ2TkJMCjYIxJgBEgQyMzU4GOO0ASCuHCifo4cDMPejhwM4RUABWAFqCU1BSU5CQVNJQ3IIVkxYNDZOQkwSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Mon, Aug 17 - Mon, Aug 31 ORD Chicago LHR London CA $889 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:17/08/2026TANYT&leg2=from:LHR,to:ORD,departure:31/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:888.86&airProductToken=AQqAAQo9CNamARIENzE0MhiuHCCAkwEo_quVAzDPr5UDOFRAAFgBagVMSUdIVHIIT0xYNDZOQkx6CQjLmAESAzYxMgo_CNamARIENzA1ORiAkwEg64kBKJCwlQMw4LCVAzhUQAFYAWoFTElHSFRyCE9MWDQ2TkJMegoIy5gBEgQ3MDU5CoEBCj8I1qYBEgQ3MDU0GOuJASCAkwEoy8iWAzCRyZYDOFRAAFgBagVMSUdIVHIIT0xYNDZOQkx6CgjLmAESBDEwMTYKPgjWpgESBDcxNDMYgJMBIK4cKMXPlgMww9OWAzhUQAFYAWoFTElHSFRyCE9MWDQ2TkJMegoIy5gBEgQ3MTQzEgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Tue, Feb 17 - Sun, Mar 1 ORD Chicago LHR London CA $891 Roundtrip found 10 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:17/02/2026TANYT&leg2=from:LHR,to:ORD,departure:01/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:890.46&airProductToken=AQpgCi0IwmwSAzMxMhiuHCDBkwEogLWFAzCMtoUDOExAAFgBagJETnIIT0w3MlNWTDEKLwjCbBIEMTYyMBjBkwEg64kBKOy4hQMw_7uFAzhMQAFYAWoCRE5yCE9MNzJTVkwxCl0KLAjCbBICMjAY64kBIKlRKKS6hgMwor6GAzhMQABYAWoCRE5yCE9MNzJTVkwxCi0IwmwSBDEzMDUYqVEgrhwo18CGAzCLwoYDOExAAVgBagJETnIIT0w3MlNWTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Feb 17 - Mon, Mar 2 ORD Chicago LHR London CA $891 Roundtrip found 10 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:17/02/2026TANYT&leg2=from:LHR,to:ORD,departure:02/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:890.96&airProductToken=AQpnCjEIwYYBEgM1MDgYrhwgmM4BKOO3hQMwxriFAzhMQABYAWoFQkFTSUNyCExMWDA2VEJRCjIIwYYBEgM4NTYYmM4BIOuJASi1uYUDMN68hQM4TEABWAFqBUJBU0lDcghMTFgwNlRCUQqnAQo_CMGGARIENjMxNRjriQEgoaQBKPnEhgMwv8WGAzhMQABYAWoFQkFTSUNyCExMWDA2VEJRegoI05wBEgQ2MzE1CjEIwYYBEgM4MzMYoaQBIJhdKJzPhgMw7dKGAzhMQAFYAWoFQkFTSUNyCExMWDA2VEJRCjEIwYYBEgQ4NDgxGJhdIK4cKMLThgMw59SGAzhMQAFYAWoFQkFTSUNyCExMWDA2VEJREgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sun, Feb 22 - Tue, Mar 3 ORD Chicago LHR London CA $894 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:ORD,to:LHR,departure:22/02/2026TANYT&leg2=from:LHR,to:ORD,departure:03/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:893.30&airProductToken=AQozCjEIwoIBEgMyOTQYrhwg64kBKM7whQMwn_SFAzhPQABYAWoFTk9CQUdyCE9MWDREMUJWCkAKPgjCggESBDE1NDYY64kBIK4cKNLRhgMw5NWGAzhPQABYAWoFTk9CQUdyCE9MWDREMUJWegoIwYIBEgQxNTQ2EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) ## 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:LGW,departure:22/02/2026TANYT&leg2=from:LGW,to:ORD,departure:03/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick 52 min [Flights from CA $1,590 ](https://www.expedia.ca/Flights-Search?leg1=from:ORD,to:LGW,departure:22/02/2026TANYT&leg2=from:LGW,to:ORD,departure:03/03/2026TANYT&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:ORD,to:LCY,departure:22/02/2026TANYT&leg2=from:LCY,to:ORD,departure:03/03/2026TANYT&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 $1,040 ](https://www.expedia.ca/Flights-Search?leg1=from:ORD,to:LCY,departure:22/02/2026TANYT&leg2=from:LCY,to:ORD,departure:03/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from Chicago (CHI) to London (LHR) ### November is typically the cheapest month to fly From CA $634 - CA $1,207 per traveller. __Flight from Chicago to London (ORD - LHR) route information__ | Origin airport | O'Hare Intl. | | ------------------- | ------------ | | Destination airport | Heathrow | | Roundtrip price | CA $716 | | Distance | 6307 km | ## Illinois to London Flights **The easy way to book your flights from Chicago to London** With Expedia, it’s simple to find and book flights to London from Chicago 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 Chicago to London today, tomorrow, or this week. **Save dollars with cheap flights from CHI-All Airports, CHI to Heathrow, LHR** Sort your search results by price to find great deals on your flight from Chicago to London—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to London from Chicago currently is just CA $716 rising to CA $894\. Here are more money-saving tips: - Fly in February 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 Chicago** 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 London with Expedia today. \*Available to Expedia members.