CA $218 Cheap Flights from Buffalo (BUF) to Washington (IAD)

View CA $218 flight on Wed, May 13, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles International Airport (IAD)

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Cheap flights from Buffalo (BUF) to Washington (IAD)

Prices were available within the past 7 days and start at CA $218 for one-way flights and CA $358 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jun 18 - Tue, Jul 7
BUF
Buffalo
IAD
Washington
CA $358 Roundtrip, found 11 hours ago
CA $358
Roundtrip
found 11 hours ago
Select Delta flight, departing Thu, Jun 18 from Buffalo to Washington, returning Tue, Jul 7, priced at CA $358 found 11 hours ago
American Airlines
Wed, Sep 2 - Tue, Sep 8
BUF
Buffalo
IAD
Washington
CA $360 Roundtrip, found 4 days ago
CA $360
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 2 from Buffalo to Washington, returning Tue, Sep 8, priced at CA $360 found 4 days ago
American Airlines
Thu, Apr 30 - Sat, May 2
BUF
Buffalo
IAD
Washington
CA $367 Roundtrip, found 4 days ago
CA $367
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Apr 30 from Buffalo to Washington, returning Sat, May 2, priced at CA $367 found 4 days ago
Delta
Tue, May 19 - Tue, May 26
BUF
Buffalo
IAD
Washington
CA $371 Roundtrip, found 4 days ago
CA $371
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, May 19 from Buffalo to Washington, returning Tue, May 26, priced at CA $371 found 4 days ago
Delta
Mon, May 11 - Mon, May 18
BUF
Buffalo
IAD
Washington
CA $375 Roundtrip, found 16 hours ago
CA $375
Roundtrip
found 16 hours ago
Select Delta flight, departing Mon, May 11 from Buffalo to Washington, returning Mon, May 18, priced at CA $375 found 16 hours ago
Delta
Sun, Jun 21 - Wed, Jul 1
BUF
Buffalo
IAD
Washington
CA $378 Roundtrip, found 11 hours ago
CA $378
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Jun 21 from Buffalo to Washington, returning Wed, Jul 1, priced at CA $378 found 11 hours ago
American Airlines
Wed, Apr 29 - Tue, May 5
BUF
Buffalo
IAD
Washington
CA $382 Roundtrip, found 4 days ago
CA $382
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Apr 29 from Buffalo to Washington, returning Tue, May 5, priced at CA $382 found 4 days ago
Delta
Tue, Jun 9 - Wed, Jun 17
BUF
Buffalo
IAD
Washington
CA $384 Roundtrip, found 2 days ago
CA $384
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 9 from Buffalo to Washington, returning Wed, Jun 17, priced at CA $384 found 2 days ago
American Airlines
Fri, Aug 28 - Sun, Aug 30
BUF
Buffalo
IAD
Washington
CA $385 Roundtrip, found 12 hours ago
CA $385
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Fri, Aug 28 from Buffalo to Washington, returning Sun, Aug 30, priced at CA $385 found 12 hours ago
United
Sat, Jun 20 - Mon, Jun 22
BUF
Buffalo
IAD
Washington
CA $428 Roundtrip, found 11 hours ago
CA $428
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Jun 20 from Buffalo to Washington, returning Mon, Jun 22, priced at CA $428 found 11 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city centre is 8 minutes. Flights from CA $378
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city centre8 min
Flights from CA $378

Frequently asked questions

How much is a flight from Buffalo Niagara Intl. Airport (BUF) to IAD?
The lowest price advertised for a round-trip flight between BUF and Dulles Intl. Airport is CA $358. But you better act soon. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Buffalo Niagara Intl. Airport (BUF) to IAD?
The majority of flights can be cancelled online, but each airline has its own terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Buffalo Niagara International Airport to Dulles Intl. Airport that have flexible change policies?
Flights from BUF to Washington Dulles Intl. Airport (IAD) with flexible change policies are available with many airlines. Simply use our "No change fees" filter when searching. You'll only need to cover the cost difference between flights, with no added fees to worry about.
How many hours is the flight from BUF to Washington Dulles Intl. Airport (IAD)?
It only takes around 4 hours and 41 minutes to jet from BUF to Washington Dulles Intl. Airport (IAD) — perfect for forty winks. You'll be landing in Chantilly by the time you wake up.
How far is the flight from BUF to Dulles Intl. Airport?
You might not get through a whole movie on this flight — it's only 460 kilometres from Buffalo to Chantilly. Find your way to your seat, buckle up and you'll be in Chantilly in no time.
Which airlines fly direct from Buffalo Niagara Intl. Airport (BUF) to Dulles Intl. Airport?
If you want to fly straight from Buffalo Niagara Intl. Airport (BUF) to IAD, United Airlines (UA) is a popular option. It operates 91 monthly flights between Buffalo and Chantilly.
Are Buffalo Niagara Intl. Airport (BUF) to IAD flight tickets cheaper when they're purchased at the last minute?
Flight prices from Buffalo Niagara International Airport to Dulles Intl. Airport are available up to a year prior to departure on Expedia. And although you may pick up a great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $358
Distance
452 km
Average flight time
1 hour 20 mins

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