Title: CA $528 Cheap United fights from Washington 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 $528 Cheap United fights from Washington (WAS) to London (LON) [View CA $528 flight on Mon, Jan 19, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:IAD,to:LHR,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:527.40&airProductToken=AQo4CjYI1YIBEgM5MjQYiBgg64kBKIP0ggMwyveCAzhTQABYAWoKMV9iYXNpY2Vjb3IIU0xFNzBBQlESCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) - [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) ## United flights from Washington to London (WAS→LON) Prices were available within the past 7 days and start at CA $528 for one-way flights and CA $838 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Feb 9 - Mon, Feb 23 IAD Washington LHR London CA $838 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:IAD,to:LHR,departure:09/02/2026TANYT&leg2=from:LHR,to:IAD,departure:23/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:837.95&airProductToken=AQpuCjUI1YIBEgQyNjY5GIgYIMSNASjU2IQDMKPZhAM4S0AAWAFqCEVDT0JBU0lDcghLTFg3NllCUQo1CNWCARIDOTM0GMSNASDriQEo5dmEAzCT3YQDOEtAAVgBaghFQ09CQVNJQ3IIS0xYNzZZQlEKeApBCNWCARIEODgxMhjriQEgpQQowvSFAzCh9YUDOExAAFgBaghFQ09CQVNJQ3IITExBODZVQlF6CgjMkAESBDg4MTIKMwjVggESAzk4OBilBCCIGCj29YUDMJf6hQM4TEABWAFqCEVDT0JBU0lDcghMTEE4NlVCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jan 14 - Wed, Jan 21 DCA Washington LGW London CA $856 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:LGW,departure:14/01/2026TANYT&leg2=from:LGW,to:DCA,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:855.83&airProductToken=AQqpAQozCNWCARIEMzQ4MxhDIK4cKPS3ggMwiLmCAzhMQABYAWoIRUNPQkFTSUNyCExMWDQ2VUJRCjEI1YIBEgEzGK4cILk8KLK5ggMwv72CAzhMQAFYAWoIRUNPQkFTSUNyCExMWDQ2VUJRCj8IzLABEgM0MzIYuTwgy7EBKOXBggMwzsKCAzhMQAFYAWoIRUNPQkFTSUNyCExMWDQ2VUJRegkIspgBEgM0MzIKngEKNAjMsAESAzQzMxjLsQEguTwowIaDAzCph4MDOEtAAFgBaghFQ09MSUdIVHIIS0xYNzZZQlEKMQjMsAESATgYuTwgrhwo2o6DAzC8k4MDOEtAAVgBaghFQ09MSUdIVHIIS0xYNzZZQlEKMwjVggESBDEzNjkYrhwgQyiglIMDMJeVgwM4S0ABWAFqCEVDT0xJR0hUcghLTFg3NllCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jan 14 - Wed, Jan 21 DCA Washington LGW London CA $857 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:LGW,departure:14/01/2026TANYT&leg2=from:LGW,to:DCA,departure:21/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:856.97&airProductToken=AQqpAQozCNWCARIEMzQ4MxhDIK4cKPS3ggMwiLmCAzhMQABYAWoIRUNPQkFTSUNyCExMWDQ2VUJRCjEI1YIBEgEzGK4cILk8KLK5ggMwv72CAzhMQAFYAWoIRUNPQkFTSUNyCExMWDQ2VUJRCj8IzLABEgM0MzIYuTwgy7EBKOXBggMwzsKCAzhMQAFYAWoIRUNPQkFTSUNyCExMWDQ2VUJRegkIspgBEgM0MzIKmQEKMQjMsAESAzQzMxjLsQEguTwowIaDAzCph4MDOEtAAFgBagVCQVNJQ3IIS0xYNzZZQlEKMQjBhgESAzg4MRi5PCCYzgEo5I6DAzCFk4MDOEtAAVgBagVCQVNJQ3IIS0xYNzZZQlEKMQjBhgESBDg3ODYYmM4BIEMo7pODAzDNlIMDOEtAAVgBagVCQVNJQ3IIS0xYNzZZQlESCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Feb 23 - Mon, Mar 2 DCA Washington LHR London CA $862 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DCA,to:LHR,departure:23/02/2026TANYT&leg2=from:LHR,to:DCA,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:861.25&airProductToken=AQpsCjQI1YIBEgQ0NTYwGEMgxI0BKLr6hQMwmPuFAzhLQABYAWoIRUNPQkFTSUNyCEtMWDc2WUJRCjQI1YIBEgIxNhjEjQEg64kBKOT7hQMwnP-FAzhLQAFYAWoIRUNPQkFTSUNyCEtMWDc2WUJRCp8BCjQIzLABEgMzMTcY64kBILk8KPzDhgMw78SGAzhMQABYAWoIRUNPTElHSFRyCExMVzc2QUJRCjIIzLABEgI4Nhi5PCCYXSicxYYDMIvJhgM4TEABWAFqCEVDT0xJR0hUcghMTFc3NkFCUQozCMGGARIEODgyNRiYXSBDKLzLhgMwssyGAzhMQAFYAWoIRUNPTElHSFRyCExMVzc2QUJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Feb 9 - Mon, Feb 23 IAD Washington LCY London CA $902 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:IAD,to:LCY,departure:09/02/2026TANYT&leg2=from:LCY,to:IAD,departure:23/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:901.35&airProductToken=AQqFAQpACNWCARIEODgyNhiIGCClBCik3oQDMPDhhAM4TEAAWAFqCEVDT0JBU0lDcghMTFg0NlVCUXoKCMyQARIEODgyNgpBCMyQARIENTY1NhilBCDLwAEoseKEAzCL44QDOExAAVgBaghFQ09CQVNJQ3IITExYNDZVQlF6CgjFnAESBDU2NTYKdQo_CMywARIDNDY3GMvAASC5PCj--YUDMOz6hQM4S0AAWAFqCEVDT0xJR0hUcghLTFg3NllCUXoJCLKYARIDNDY3CjIIzLABEgI3Mhi5PCCIGCj1gYYDMLSGhgM4S0ABWAFqCEVDT0xJR0hUcghLTFg3NllCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Feb 12 - Thu, Feb 19 IAD Washington LGW London CA $907 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:IAD,to:LGW,departure:12/02/2026TANYT&leg2=from:LGW,to:IAD,departure:19/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:906.63&airProductToken=AQqhAQozCNWCARIDOTMyGIgYIKUEKPSBhQMwyoWFAzhMQABYAWoIRUNPQkFTSUNyCExMQTg2VUJRCjQIzLABEgQxMDczGKUEILk8KMyGhQMwg4eFAzhMQAFYAWoIRUNPQkFTSUNyCExMQTg2VUJRCjQIzLABEgM0MzIYuTwgy7EBKIWIhQMw7oiFAzhMQAFYAWoIRUNPQkFTSUNyCExMQTg2VUJRCoMBCj8IzLABEgM0MzMYy7EBILk8KODMhQMwyc2FAzhMQABYAWoIRUNPTElHSFRyCExMQTg2VUJRegkIspgBEgM0MzMKQAjMsAESBDMyMDAYuTwgiBgopdSFAzDV2IUDOExAAVgBaghFQ09MSUdIVHIITExBODZVQlF6CgjVggESBDMyMDASCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) Flight from Washington to London (IAD - LGW) route information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Gatwick | | Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, JetBlue Airways, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic | | Popular airline | Aer Lingus | | Distance | 5896 km | ![](https://forever.travel-assets.com/flex/flexmanager/images/2025/11/05/BEX-BF-25_CA_1_Desktop.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## Black Friday Sale Limited-time deals: save up to 50% on select hotels [Book now](https://expedia.ca/deals?rfrr=FTG_BF_PROMO_) ## Explore a world of travel with Expedia \*Available to Expedia members.