Title: £70 Cheap United flights from Boston to Washington (BOS→IAD) - Expedia.co.uk ![Chantilly, France - December 2013: The chateau at Chantilly](https://images.trvl-media.com/place/8638/8a4635fc-37fb-4de8-b687-777b12acac2c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/8638/8a4635fc-37fb-4de8-b687-777b12acac2c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £70 Cheap United flights from Boston to Washington (BOS→IAD) [View £70 flight on Tue, 4 Nov 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:BOS,to:IAD,departure:04/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:69.30&airProductToken=AQo2CjQI1YIBEgQyMDk4GMGTASCIGCiGl_wCMO2X_AI4R0AAWAFqB0VDT05PTVlyCEdBQTRBSERTEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) - [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 Washington (BOS→IAD) Prices were available within the past 7 days and start at £70 for one-way flights and £138 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) Fri, 31 Oct - Mon, 17 Nov BOS Boston IAD Washington £138 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:31/10/2025TANYT&leg2=from:IAD,to:BOS,departure:17/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:137.40&airProductToken=AQojCiEI1YIBEgQxNzM0GMGTASCIGCja5_sCMMHo-wI4R0AAWAEKIgogCNWCARIDNzU1GIgYIMGTASibr_0CMPqv_QI4R0AAWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, 31 Oct - Tue, 11 Nov BOS Boston IAD Washington £142 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:31/10/2025TANYT&leg2=from:IAD,to:BOS,departure:11/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:141.70&airProductToken=AQojCiEI1YIBEgQxNzM0GMGTASCIGCja5_sCMMHo-wI4R0AAWAEKIgogCNWCARIDNzU1GIgYIMGTASjb6_wCMLrs_AI4S0AAWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 3 Nov - Mon, 17 Nov BOS Boston IAD Washington £149 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:03/11/2025TANYT&leg2=from:IAD,to:BOS,departure:17/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:148.80&airProductToken=AQpGCiEI1YIBEgM1MjEYwZMBIMSNASj9j_wCMNyQ_AI4S0AAWAEKIQjVggESBDE5NTAYxI0BIIgYKLqR_AIwjpL8AjhLQAFYAQoiCiAI1YIBEgM3NTUYiBggwZMBKJuv_QIw-q_9AjhHQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 3 Nov - Tue, 11 Nov BOS Boston IAD Washington £153 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:03/11/2025TANYT&leg2=from:IAD,to:BOS,departure:11/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:152.10&airProductToken=AQpGCiEI1YIBEgM1MjEYwZMBIMSNASj9j_wCMNyQ_AI4S0AAWAEKIQjVggESBDE5NTAYxI0BIIgYKLqR_AIwjpL8AjhLQAFYAQoiCiAI1YIBEgM3NTUYiBggwZMBKNvr_AIwuuz8AjhLQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 3 Nov - Thu, 13 Nov BOS Boston IAD Washington £160 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:03/11/2025TANYT&leg2=from:IAD,to:BOS,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:159.20&airProductToken=AQpGCiEI1YIBEgM1MjEYwZMBIMSNASj9j_wCMNyQ_AI4S0AAWAEKIQjVggESBDE5NTAYxI0BIIgYKLqR_AIwjpL8AjhLQAFYAQpGCiEI1YIBEgQyNjY5GIgYIMSNASjU-vwCMJ37_AI4S0AAWAEKIQjVggESAzM3NRjEjQEgwZMBKKH8_AIw7_z8AjhLQAFYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, 31 Oct - Thu, 20 Nov BOS Boston IAD Washington £160 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:IAD,departure:31/10/2025TANYT&leg2=from:IAD,to:BOS,departure:20/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:159.60&airProductToken=AQojCiEI1YIBEgQxNzM0GMGTASCIGCja5_sCMMHo-wI4R0AAWAEKRgohCNWCARIEMjI5NRiIGCDEjQEo2cr9AjCpy_0COEtAAFgBCiEI1YIBEgM1OTMYxI0BIMGTASjqy_0CMLjM_QI4S0ABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) Flight from Boston to Washington route information | Origin airport | Logan Intl. | | --- | --- | | Destination airport | Washington Dulles Intl. | | Airlines serving | Alaska Airlines | | Popular airline | Alaska Airlines | | Distance | 657 km | | Average flight time | 1 hour 42 mins | ## Frequently asked questions ### How much is a United Airlines flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)? > Finding cheap one-way United Airlines flights from BOS to IAD from £70 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from £138 for your next getaway.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from BOS to IAD with United Airlines? > United Airlines flights to Washington are typically more affordable in the quieter months of January and February. Whether you need a one-way or round-trip ticket, you could score a better deal then. ### Does United Airlines fly nonstop from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)? > Yes, you can travel from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) on one of United Airlines's 28 weekly direct flights. Make use of our "Nonstop" and "Airline" filters to find the United Airlines flight that'll land at IAD at a time that suits you. ### How long does it take to fly from BOS to IAD with United Airlines? > From takeoff to arrival, a direct United Airlines flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) takes around 1h 45m. ### Which day of the week has the most United Airlines flights from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)? > Friday has the most United Airlines flights from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD). With 4 daily departures, this is the best day of the week to find something that will suit your schedule. ### What airports does United Airlines fly into in Washington? > United Airlines flights from Logan Intl. Airport (BOS) to Washington touch down at Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI). The main Washington gateway for this carrier is IAD. It's always worth considering flights arriving at other nearby airports on Expedia as you may find cheaper prices. ### What type of plane does United Airlines fly from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)? > For the Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) route, United Airlines typically operates Boeing 737-800 and Boeing 737 MAX 8 planes. Keep in mind that last-minute changes are possible for operational reasons, meaning your flight may be on a different aircraft. ### Can I change or cancel my United Airlines flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)? > It's usually possible to reschedule or cancel your flight, although there may be additional charges if you booked more than 24 hours ago. Want to keep your options open? Make use of Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you need to alter your plans. To update your booking, go to "[Trips](https://www.expedia.co.uk/trips)," select your flight and click on "Manage Booking" for further information. - Trending United Flights - Trending Routes - Related Airlines - Nearby Airports - Flights from Other Cities - Expedia's Latest Trends ### Most Popular United Routes from Boston - [United BOS to EWR](https://expedia.co.uk/lp/flight-routes/united-from-logan-intl-to-newark-liberty-intl-airport/ua/bos/ewr) ### Most Popular United Routes from Washington - [United IAD to LHR](https://expedia.co.uk/lp/flight-routes/united-from-washington-dulles-intl-to-heathrow/ua/iad/lhr) - [London to Orlando (LHR - MCO)](https://expedia.co.uk/lp/flights/lhr/mco/london-to-orlando) - [London to Seoul (LHR - ICN)](https://expedia.co.uk/lp/flights/lhr/icn/london-to-seoul) - [London to Montego Bay (LHR - MBJ)](https://expedia.co.uk/lp/flights/lhr/mbj/london-to-montego-bay) - [London to Los Angeles (LHR - LAX)](https://expedia.co.uk/lp/flights/lhr/lax/london-to-los-angeles) - [London to Sydney (LHR - SYD)](https://expedia.co.uk/lp/flights/lhr/syd/london-to-sydney) - [London to Sydney (LHR - SYD)](https://expedia.co.uk/lp/flights/lhr/syd/london-to-sydney) - [London to Melbourne (LHR - MEL)](https://expedia.co.uk/lp/flights/lhr/mel/london-to-melbourne) - [London to Las Vegas (LHR - LAS)](https://expedia.co.uk/lp/flights/lhr/las/london-to-las-vegas) - [London to Osaka (LHR - KIX)](https://expedia.co.uk/lp/flights/lhr/kix/london-to-osaka) - [London to Tokyo (LHR - HND)](https://expedia.co.uk/lp/flights/lhr/hnd/london-to-tokyo) ### Popular Domestic Routes in Washington Dulles Intl. - [Manchester to Orlando (MAN - MCO)](https://expedia.co.uk/lp/flights/man/mco/manchester-to-orlando) - [London to Orlando (LHR - MCO)](https://expedia.co.uk/lp/flights/lhr/mco/london-to-orlando) - [London to Tokyo (LHR - NRT)](https://expedia.co.uk/lp/flights/lhr/nrt/london-to-tokyo) - [London to Seoul (LHR - ICN)](https://expedia.co.uk/lp/flights/lhr/icn/london-to-seoul) - [New York to London (JFK - LHR)](https://expedia.co.uk/lp/flights/jfk/lhr/new-york-to-london) - [Manchester to Las Vegas (MAN - LAS)](https://expedia.co.uk/lp/flights/man/las/manchester-to-las-vegas) - [London to Montego Bay (LHR - MBJ)](https://expedia.co.uk/lp/flights/lhr/mbj/london-to-montego-bay) - [London to Osaka (LHR - KIX)](https://expedia.co.uk/lp/flights/lhr/kix/london-to-osaka) - [London to Miami (LHR - MIA)](https://expedia.co.uk/lp/flights/lhr/mia/london-to-miami) - [London to Sydney (LHR - SYD)](https://expedia.co.uk/lp/flights/lhr/syd/london-to-sydney) ### Related Airlines - [TAP Portugal](https://expedia.co.uk/TAP-Portugal-Flights.cTP.Travel-Guide-Airlines) - [British Airways](https://expedia.co.uk/British-Airways-Flights.cBA.Travel-Guide-Airlines) - [KLM](https://expedia.co.uk/KLM-Flights.cKL.Travel-Guide-Airlines) - [Aer Lingus](https://expedia.co.uk/Aer-Lingus-Flights.cEI.Travel-Guide-Airlines) - [Air France](https://expedia.co.uk/Air-France-Flights.cAF.Travel-Guide-Airlines) - [JetBlue Airways](https://expedia.co.uk/JetBlue-Airways-Flights.cB6.Travel-Guide-Airlines) - [Air Canada](https://expedia.co.uk/Air-Canada-Flights.cAC.Travel-Guide-Airlines) - [Iberia](https://expedia.co.uk/Iberia-Flights.cIB.Travel-Guide-Airlines) - [Virgin Atlantic](https://expedia.co.uk/Virgin-Atlantic-Flights.cVS.Travel-Guide-Airlines) - [SAS](https://expedia.co.uk/Scandinavian-Airlines-Flights.cSK.Travel-Guide-Airlines) - [Icelandair](https://expedia.co.uk/Icelandair-Flights.cFI.Travel-Guide-Airlines) - [Finnair](https://expedia.co.uk/Finnair-Flights.cAY.Travel-Guide-Airlines) - [Lufthansa](https://expedia.co.uk/Lufthansa-Flights.cLH.Travel-Guide-Airlines) - [Swiss International Air Lines](https://expedia.co.uk/Swiss-International-Air-Lines-Flights.cLX.Travel-Guide-Airlines) - [Austrian Airlines](https://expedia.co.uk/Austrian-Airlines-Flights.cOS.Travel-Guide-Airlines) - [Turkish Airlines](https://expedia.co.uk/Turkish-Airlines-Flights.cTK.Travel-Guide-Airlines) ### Nearby Airports - [Norwood Memorial Airport (OWD)](https://expedia.co.uk/lp/airports/owd/flights-from-norwood-memorial-airport) - [Laurence G. 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