Title: £247 Cheap United flights from Boston to London (BOS→LHR) - Expedia.co.uk ![](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) # £247 Cheap United flights from Boston to London (BOS→LHR) [View £247 flight on Sun, 25 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:BOS,to:LHR,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:246.70&airProductToken=AQptCjUI1YIBEgQxODMzGMGTASDEjQEo9K-DAzDNsIMDOFRAAFgBagdFQ09OT01ZcghUTEQ4MFROVgo0CNWCARIDOTM0GMSNASDriQEohbGDAzCztIMDOFRAAVgBagdFQ09OT01ZcghUTEQ4MFROVhIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) - [Return](?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 25% 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.co.uk/login) ## United flights from Boston to London (BOS→LHR) Prices were available within the past 7 days and start at £247 for one-way flights and £305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 20 Apr - Tue, 21 Apr BOS Boston LHR London £305 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:20/04/2026TANYT&leg2=from:LHR,to:BOS,departure:21/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:304.81&airProductToken=AQpGCiII1YIBEgQxNjA2GMGTASDEjQEozvCKAzCj8YoDOExAAFgBCiAI1YIBEgIxNBjEjQEg64kBKNXxigMwl_WKAzhMQAFYAQpDCiAIz6YBEgMzMzgY64kBIJUiKPb6igMw-PuKAzhMQABYAQofCM-mARICMzEYlSIgwZMBKMiBiwMw7oWLAzhMQAFYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, 10 Feb - Thu, 12 Feb BOS Boston LHR London £315 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:10/02/2026TANYT&leg2=from:LHR,to:BOS,departure:12/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:314.01&airProductToken=AQpvCjYI1YIBEgQyMDYwGMGTASDEjQEonOqEAzD36oQDOExAAFgBaghFQ09CQVNJQ3IITExYMjBVQlEKNQjVggESAzk0MBjEjQEg64kBKLTrhAMw8e6EAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVUJRCoYBCkEI1YIBEgQ4ODEyGOuJASClBCji-IQDMMH5hAM4TEAAWAFqCEVDT0JBU0lDcghMTFgyMFVCUXoKCMyQARIEODgxMgpBCNWCARIEODg1MxilBCDBkwEo_fmEAzD7_YQDOExAAVgBaghFQ09CQVNJQ3IITExYMjBVQlF6CgjMkAESBDg4NTMSCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 2 Feb - Wed, 4 Feb BOS Boston LHR London £315 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:02/02/2026TANYT&leg2=from:LHR,to:BOS,departure:04/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:314.51&airProductToken=AQpvCjYI1YIBEgQyMDYwGMGTASDEjQEonJCEAzD3kIQDOExAAFgBaghFQ09CQVNJQ3IITExYMjBVQlEKNQjVggESAzk0MBjEjQEg64kBKLSRhAMw8ZSEAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVUJRCmwKNAjMkAESAzkyMRjriQEgpQQopp6EAzCFn4QDOExAAFgBaghFQ09MSUdIVHIITExYMjBVQlEKNAjMkAESAzQyMhilBCDBkwEo_Z-EAzD7o4QDOExAAVgBaghFQ09MSUdIVHIITExYMjBVQlESCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, 10 Feb - Thu, 12 Feb BOS Boston LHR London £318 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:10/02/2026TANYT&leg2=from:LHR,to:BOS,departure:12/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:317.95&airProductToken=AQqGAQpBCNWCARIEOTcyMRjBkwEguTwoquuEAzDi7oQDOExAAFgBaghFQ09CQVNJQ3IITExYMjBVQlF6CgjMsAESBDk3MjEKQQjVggESBDk3NjAYuTwg64kBKJ7vhAMwjPCEAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVUJRegoIzLABEgQ5NzYwCnwKQgjTnAESBDkwNDAY64kBIMSNASjw-oQDMO7-hAM4TEAAWAFqCEVDT0xJR0hUcghMTFgyMFVCUXoKCNWCARIEOTA0MAo2CNWCARIEMTcwMRjEjQEgwZMBKOH_hAMwrYCFAzhMQAFYAWoIRUNPTElHSFRyCExMWDIwVUJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, 10 Feb - Thu, 12 Feb BOS Boston LHR London £319 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:10/02/2026TANYT&leg2=from:LHR,to:BOS,departure:12/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:318.65&airProductToken=AQqGAQpBCNWCARIEOTcyMRjBkwEguTwoquuEAzDi7oQDOExAAFgBaghFQ09CQVNJQ3IITExYMjBVQlF6CgjMsAESBDk3MjEKQQjVggESBDk3NjAYuTwg64kBKJ7vhAMwjPCEAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVUJRegoIzLABEgQ5NzYwCmkKMgjBhgESAzg1NRjriQEgmM4BKL76hAMwqP6EAzhMQABYAWoFQkFTSUNyCExMWDIwVUJRCjMIwYYBEgQ4Njk2GJjOASDBkwEooP-EAzCGgIUDOExAAVgBagVCQVNJQ3IITExYMjBVQlESCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, 10 Feb - Thu, 12 Feb BOS Boston LHR London £332 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:10/02/2026TANYT&leg2=from:LHR,to:BOS,departure:12/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:331.41&airProductToken=AQqGAQpBCNWCARIEOTcyMRjBkwEguTwoquuEAzDi7oQDOExAAFgBaghFQ09CQVNJQ3IITExYMjBVQlF6CgjMsAESBDk3MjEKQQjVggESBDk3NjAYuTwg64kBKJ7vhAMwjPCEAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVUJRegoIzLABEgQ5NzYwCoYBCkEI1YIBEgQ4ODEyGOuJASClBCji-IQDMMH5hAM4TEAAWAFqCEVDT0JBU0lDcghMTFgyMFVCUXoKCMyQARIEODgxMgpBCNWCARIEODg1MxilBCDBkwEo_fmEAzD7_YQDOExAAVgBaghFQ09CQVNJQ3IITExYMjBVQlF6CgjMkAESBDg4NTMSCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ## Find the cheapest month to fly from Boston (BOS) to London (LHR) ### October is typically the cheapest month to fly From £290 - £392 per traveller. ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LGW,departure:25/12/2025TANYT&leg2=from:LGW,to:BOS,departure:07/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick 52 min [Flights from £1,002 ](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LGW,departure:25/12/2025TANYT&leg2=from:LGW,to:BOS,departure:07/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LCY,departure:25/12/2025TANYT&leg2=from:LCY,to:BOS,departure:27/12/2025TANYT&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 £750 ](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LCY,departure:25/12/2025TANYT&leg2=from:LCY,to:BOS,departure:27/12/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) __Flight from Boston to London route information__ | Origin airport | Logan Intl. | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Destination airport | Heathrow | | Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic | | Popular airline | Virgin Atlantic | | Distance | 5210 km | | Average flight time | 11 hours 39 mins | ## Explore a world of travel with Expedia \*Available to Expedia members.