Title: CA $269 Cheap United fights from Buffalo to Washington - Expedia.ca ![Washington DC in Spring](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $269 Cheap United fights from Buffalo (BUF) to Washington (IAD) [View CA $269 flight on Wed, Nov 19, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:BUF,to:IAD,departure:19/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:268.60&airProductToken=AQpsCjQI1YIBEgQzNDQ0GIEtIMSNASiOwf0CMPTB_QI4S0AAWAFqB0VDT05PTVlyCEtBSzRKSERTCjQI1YIBEgQyMjEyGMSNASCIGCi5xP0CMJXF_QI4R0ABWAFqB0VDT05PTVlyCEdBSzRKSERTEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) - [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 Buffalo to Washington (BUF→IAD) Prices were available within the past 7 days and start at CA $269 for one-way flights and CA $335 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) Wed, Dec 24 - Sat, Jan 3 BUF Buffalo IAD Washington CA $335 Roundtrip found 10 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:24/12/2025TANYT&leg2=from:IAD,to:BUF,departure:03/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:334.10&airProductToken=AQoiCiAI1YIBEgQ0MjcwGIEtIIgYKLDOgAMwjM-AAzhLQABYAQoiCiAI1YIBEgQ0ODIzGIgYIIEtKOa9gQMwxr6BAzhLQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Oct 31 - Sun, Nov 2 BUF Buffalo IAD Washington CA $341 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:31/10/2025TANYT&leg2=from:IAD,to:BUF,departure:02/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:340.60&airProductToken=AQozCjEI1YIBEgQ0MDIwGIEtIIgYKI3q-wIw2-r7AjhLQABYAWoFMl9lY29yCEtGQTRBREROCjMKMQjVggESBDQzMzUYiBgggS0ojIL8AjDogvwCOEtAAFgBagUyX2Vjb3IIS0ZBMkFERE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Mar 13 - Sat, Mar 21 BUF Buffalo IAD Washington CA $346 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:13/03/2026TANYT&leg2=from:IAD,to:BUF,departure:21/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:345.90&airProductToken=AQozCjEI1YIBEgQ0Mjk4GIEtIIgYKJjAhwMw58CHAzhLQABYAWoFMl9lY29yCEtGQTJBREROCjMKMQjVggESBDQzNTMYiBgggS0o56GIAzCuoogDOEtAAFgBagUyX2Vjb3IIS0ZBMkFERE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jul 22 - Tue, Jul 28 BUF Buffalo IAD Washington CA $349 Roundtrip found 18 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:22/07/2026TANYT&leg2=from:IAD,to:BUF,departure:28/07/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:348.10&airProductToken=AQozCjEI1YIBEgQ0Mjk4GIEtIIgYKPiBkwMwx4KTAzhLQABYAWoFMl9lY29yCEtGQTJBREROCjMKMQjVggESBDQzMzUYiBgggS0ow8iTAzCKyZMDOEtAAFgBagUyX2Vjb3IIS0ZBMkFERE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Oct 24 - Mon, Nov 3 BUF Buffalo IAD Washington CA $355 Roundtrip found 10 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:24/10/2025TANYT&leg2=from:IAD,to:BUF,departure:03/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:354.60&airProductToken=AQoiCiAI1YIBEgQ0MjkxGIEtIIgYKKqd-wIw_J37AjhMQABYAQoiCiAI1YIBEgQ0MDYxGIgYIIEtKKWL_AIw-Iv8AjhLQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Oct 23 - Tue, Oct 28 BUF Buffalo IAD Washington CA $356 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BUF,to:IAD,departure:23/10/2025TANYT&leg2=from:IAD,to:BUF,departure:28/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:355.60&airProductToken=AQozCjEI1YIBEgQ0MjkxGIEtIIgYKIqS-wIw3JL7AjhLQABYAWoFMl9lY29yCEtGQTRBREROCjMKMQjVggESBDQ4MjMYiBgggS0ou8v7AjCWzPsCOEtAAFgBagUyX2Vjb3IIS0ZBMkFERE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ## Travel information | Origin airport | Buffalo Niagara Intl. | | --- | --- | | Destination airport | Washington Dulles Intl. | | Airlines serving | American Airlines, Delta, United | | Popular airline | Delta | | Distance | 452 km | | Average flight time | 2 hours 15 mins | ## Explore a world of travel with Expedia - 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