CA $134 Cheap Flights from Buffalo (BUF) to Seattle (SEA)

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Buffalo (BUF) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $134 for one-way flights and CA $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
Delta
Delta
American Airlines
American Airlines
JetBlue Airways
United
Sun Country Airlines

Find the cheapest month to fly from Buffalo (BUF) to Seattle (SEA)

September is typically the cheapest month to fly

From CA $326 - CA $579 per traveller.

Graph displaying average flight prices per month

Flight from Buffalo to Seattle (BUF - SEA) route information
Origin airport
Buffalo Niagara Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
CA $267
Distance
3385 km

Buffalo to Seattle Flights

The easy way to book your flights from Buffalo to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Buffalo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Buffalo to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Buffalo to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Buffalo currently is just CA $267 rising to CA $417.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Buffalo 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Frequently asked questions

How much is a flight from Buffalo Niagara International Airport to Sea-Tac Airport?
Start packing your suitcase, because round-trip flights between BUF and Sea-Tac Airport start from CA $267. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to nab the best deal. 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 Seattle - Tacoma Intl. Airport (SEA)?
When it comes to cancellation fees, every airline has its own terms and conditions. If you decide to cancel your vacation, visit our Customer Service Portal.
How do I find cheap flights from BUF to SEA that have flexible change policies?
Plenty of carriers offer the option to reschedule your flight at no extra charge. All you pay is the cost difference between flights. When searching for Buffalo Niagara International Airport to SEA flights, you'll see a "No change fees" box for you to pick.
How many hours is the flight from Buffalo Niagara International Airport to Sea-Tac Airport?
Consider bringing your own on-board entertainment, as it takes roughly 7 hours and 43 minutes to fly to SEA from Buffalo Niagara Intl. Airport (BUF). A good set of noise-cancelling headphones will also be useful.
How far is the flight from BUF to SEA?
The flight distance from Buffalo Niagara Intl. Airport (BUF) to Seattle - Tacoma Intl. Airport (SEA) is 3,400 kilometres. Pack yourself a snack, a drink and a laptop filled with movies. Keep yourself entertained and time will zip by.
Which airlines fly direct from Buffalo Niagara Intl. Airport (BUF) to SEA?
Flying directly between Buffalo Niagara Intl. Airport (BUF) and Sea-Tac Airport isn't possible at this time. However, you'll still be able to find a flight to SeaTac with at least one stop.
Are BUF to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up great last-minute deals from Buffalo Niagara Intl. Airport (BUF) to Seattle - Tacoma Intl. Airport (SEA), but it can also be hit-or-miss. As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be sure you're always getting the latest offers.

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Seattle nearby Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.