Cheap Flights From Buffalo Niagara Intl. (BUF) To Washington Dulles Intl. (IAD)

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Cheapest Flights from Buffalo (BUF) to Washington (IAD)

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $355 round trip and CA $289 one way. Prices and availability subject to change. Additional terms may apply.

Thu, May 28 - Mon, Jun 1
BUF
Buffalo
IAD
Washington
CA $355 Roundtrip, found 4 days ago
CA $355
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, May 28 from Buffalo to Washington, returning Mon, Jun 1, priced at CA $355 found 4 days ago
Sat, May 23 - Mon, Jun 1
BUF
Buffalo
IAD
Washington
CA $360 Roundtrip, found 4 days ago
CA $360
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, May 23 from Buffalo to Washington, returning Mon, Jun 1, priced at CA $360 found 4 days ago
Wed, Apr 8 - Wed, Apr 15
BUF
Buffalo
IAD
Washington
CA $391 Roundtrip, found 2 days ago
CA $391
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Apr 8 from Buffalo to Washington, returning Wed, Apr 15, priced at CA $391 found 2 days ago
Fri, Apr 10 - Tue, Apr 14
BUF
Buffalo
IAD
Washington
CA $393 Roundtrip, found 2 days ago
CA $393
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Apr 10 from Buffalo to Washington, returning Tue, Apr 14, priced at CA $393 found 2 days ago
Sat, Jun 27 - Sat, Jul 4
BUF
Buffalo
IAD
Washington
CA $396 Roundtrip, found 6 days ago
CA $396
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jun 27 from Buffalo to Washington, returning Sat, Jul 4, priced at CA $396 found 6 days ago
Sat, May 23 - Fri, Jun 5
BUF
Buffalo
IAD
Washington
CA $402 Roundtrip, found 4 days ago
CA $402
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, May 23 from Buffalo to Washington, returning Fri, Jun 5, priced at CA $402 found 4 days ago
Thu, May 28 - Thu, Jun 4
BUF
Buffalo
IAD
Washington
CA $412 Roundtrip, found 4 days ago
CA $412
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, May 28 from Buffalo to Washington, returning Thu, Jun 4, priced at CA $412 found 4 days ago
Wed, Apr 8 - Wed, Apr 15
BUF
Buffalo
IAD
Washington
CA $413 Roundtrip, found 2 days ago
CA $413
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Apr 8 from Buffalo to Washington, returning Wed, Apr 15, priced at CA $413 found 2 days ago
Fri, May 29 - Thu, Jun 4
BUF
Buffalo
IAD
Washington
CA $418 Roundtrip, found 4 days ago
CA $418
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, May 29 from Buffalo to Washington, returning Thu, Jun 4, priced at CA $418 found 4 days ago
Fri, Apr 10 - Tue, Apr 14
BUF
Buffalo
IAD
Washington
CA $427 Roundtrip, found 2 days ago
CA $427
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Apr 10 from Buffalo to Washington, returning Tue, Apr 14, priced at CA $427 found 2 days ago

Washington Dulles Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Harborside Hotel

Harborside Hotel

3 out of 5
Price was CA $773, price is now CA $749 per person
CA $749
per person
May 14 - May 16
found 6 hours ago
Roundtrip flight included
Buffalo (BUF) to Washington (DCA)
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Frequently asked questions

Are there direct flights from Buffalo Niagara International Airport to Washington Dulles Intl. Airport (IAD)?
For a speedy trip between Buffalo and Sterling, try United Airlines. They advertise direct flights from BUF to IAD.
What airlines fly from Buffalo Niagara International Airport to IAD?
Hoping to fly straight from Buffalo to Sterling? Today is your lucky day. United Airlines offers 108 flights every month and is the preferred choice for many wise wanderers.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.