Title: £171 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) # £171 Cheap United flights from Boston to London (BOS→LHR) [View £171 flight on Thu, 15 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:BOS,to:LHR,departure:15/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:170.10&airProductToken=AQpvCjYI1YIBEgQxODMzGMGTASDEjQEotL-CAzCNwIIDOFRAAFgBaghFQ09CQVNJQ3IIVExEODBVQlEKNQjVggESAzEyMhjEjQEg64kBKPLAggMwoMSCAzhUQAFYAWoIRUNPQkFTSUNyCFRMRDgwVUJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) - [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 £171 for one-way flights and £306 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) Tue, 13 Jan - Wed, 14 Jan BOS Boston LHR London £306 Return found 22 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:LHR,departure:13/01/2026TANYT&leg2=from:LHR,to:BOS,departure:14/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:305.01&airProductToken=AQpvCjYI1YIBEgQxODMzGMGTASDEjQEo9KiCAzDNqYIDOExAAFgBaghFQ09CQVNJQ3IITExYMjBUQlEKNQjVggESAzkzNBjEjQEg64kBKIWqggMws62CAzhMQAFYAWoIRUNPQkFTSUNyCExMWDIwVEJRCoYBCkEI1YIBEgQ5NzU5GOuJASC5PCi5tYIDMLG2ggM4TEAAWAFqCEVDT0JBU0lDcghMTFgyMFRCUXoKCMywARIEOTc1OQpBCNWCARIEOTcyMhi5PCDBkwEo3raCAzDcuoIDOExAAVgBaghFQ09CQVNJQ3IITExYMjBUQlF6CgjMsAESBDk3MjISCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![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 4 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 2 days 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 4 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 4 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 4 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:27/12/2025TANYT&leg2=from:LGW,to:BOS,departure:04/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick 52 min [Flights from £1,639 ](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LGW,departure:27/12/2025TANYT&leg2=from:LGW,to:BOS,departure:04/01/2026TANYT&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:27/12/2025TANYT&leg2=from:LCY,to:BOS,departure:07/01/2026TANYT&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 £1,033 ](https://www.expedia.co.uk/Flights-Search?leg1=from:BOS,to:LCY,departure:27/12/2025TANYT&leg2=from:LCY,to:BOS,departure:07/01/2026TANYT&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, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, SATA International-Azores Airlines S.A., Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic | | Popular airline | Air Canada | | Distance | 5210 km | | Average flight time | 11 hours 39 mins | ## Explore a world of travel with Expedia \*Available to Expedia members.