Title: £149 Cheap Flights from Washington to Buffalo (IAD to BUF) - Expedia.co.uk ![Buffalo, NY](https://images.trvl-media.com/place/602674/87d981cf-5755-46d3-aea8-dd650f6a21eb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/602674/87d981cf-5755-46d3-aea8-dd650f6a21eb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £149 Cheap Flights from Washington (IAD) to Buffalo (BUF) [View £149 flight on Sun, 5 Oct 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:IAD,to:BUF,departure:05/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:148.20&airProductToken=AQpFCiAI1YIBEgM2OTQYiBggxI0BKM7E-QIwnsX5AjhLQABYAQohCNWCARIEMjMzNRjEjQEggS0ow8r5AjCiy_kCOEtAAVgBEgoIARABGAEqAlVBGAEiBAgBEAEoBDAB) - [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 ## Popular airlines from Washington Dulles International Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:buf,departure:05/10/2025TANYT&leg2=from:buf,to:iad,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:buf,departure:05/10/2025TANYT&leg2=from:buf,to:iad,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:buf,departure:05/10/2025TANYT&leg2=from:buf,to:iad,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:buf,departure:05/10/2025TANYT&leg2=from:buf,to:iad,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) ![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) ## Cheap Flights from Washington (IAD) to Buffalo (BUF) Prices were available within the past 7 days and start at £149 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ## Find the cheapest month to fly from Washington (IAD) to Buffalo (BUF) ### April is typically the cheapest month to fly From £102 - £261 per traveller. ## Frequently asked questions ### How much is a flight from IAD to BUF? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Washington Dulles Intl. Airport (IAD) to BUF was . Cheap fares don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from IAD to BUF? > Most flights can be cancelled online, but every air carrier has a different set of terms and conditions. If you do need to cancel your flight, go to our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from IAD to BUF that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IAD to BUF flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from IAD to Buffalo Niagara Intl. Airport (BUF)? > That movie you've been desperate to see will have to wait — the flight distance between Dulles Intl. Airport and Buffalo Niagara Intl. Airport (BUF) is only 460 kilometres. The captain will be asking you to buckle up for landing before you know it. ### Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to BUF? > If you're looking to fly straight from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF), United Airlines (UA) is an excellent option. It operates 91 flights every month between Chantilly and Buffalo. ### Are Dulles Intl. Airport to BUF flight tickets cheaper when they're purchased at the last minute? > Tickets from Dulles Intl. Airport to Buffalo Niagara International Airport are available up to a year prior to departure on Expedia. And although you may nab great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more options — and you can avoid ending up with the dreaded middle seat! We're always updating our fares to bring you the biggest bargains, so check back often for all the latest specials. ## Travel information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Buffalo Niagara Intl. | | Distance | 452 km | | Average flight time | 1 hour 22 mins | ## Book with confidence ### Compare flights from Washington to Buffalo easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Buffalo. Operating between them 9 flights per day, 18 airlines cover the route. And Avianca, Copa Airlines, Brussels Airlines, Lufthansa, United Airlines fly direct, getting you to Buffalo Niagara Intl. in just 1hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Buffalo Niagara Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Buffalo Niagara Intl. (BUF) The easiest way to view the best deals on flights from Washington to Buffalo today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Buffalo Niagara Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Washington and Buffalo - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Washington to Buffalo flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Buffalo Niagara Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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