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Find Buffalo to Seattle flights starting at CAD 134.

Book one-way or return flights from Buffalo to Seattle from as little as CAD 134. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Buffalo to Seattle? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Buffalo to Seattle. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Find Cheapest Airlines Flying from Buffalo to Seattle

View airlines operating flights from Buffalo to Seattle. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From CAD 134
American Airlines
From CAD 164
Jetblue Airways
From CAD 184
Delta Air Lines
From CAD 200
United Airlines
From CAD 212
Sun Country Airlines
From CAD 216
Alaska Airlines
From CAD 227
Southwest Airlines
From CAD 330
ANA airlines

Find more flights and airlines

Alternative Routes for Buffalo to Seattle Flights

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Buffalo to Seattle.

  • Cheapest
    Frontier Airlines
    BUF
    21:43
    13h 47m
    1 transfer
    SEA
    08:30
    Buffalo Niagara International Airport - Seattle-Tacoma International Airport
    Wed, May 15Frontier Airlines
    CAD 134
  • Frontier Airlines
    BUF
    21:43
    13h 47m
    1 transfer
    SEA
    08:30
    Buffalo Niagara International Airport - Seattle-Tacoma International Airport
    Wed, May 15Frontier Airlines
    CAD 134
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Buffalo (BUF) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from Buffalo to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Buffalo (BUF) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around CAD 679.
  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • What's the most popular airline for direct flights from Buffalo (BUF) to Seattle (SEA)?

    Southwest Airlines operates 1 direct flights from Buffalo (BUF) to Seattle (SEA).
  • How many airports in Seattle (SEA)?

How to find a cheap flight from Buffalo to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Buffalo to Seattle. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information for Buffalo to Seattle Flights

Cheapest direct flight price

CAD 134

Cheapest return ticket price

CAD 590

Cheapest month

May

Peak season for travel

October

Flight distance

3,404.98km

Popular airline

American Airlines