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CA $194 Cheap Flights from Buffalo (BUF) to Seattle (SEA)

View CA $194 flight on Sat, Sep 26, 2026Opens in a new window

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 $194 for one-way flights and CA $387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, Sep 26 - Sat, Oct 3
BUF
Buffalo
SEA
Seattle
CA $387 Roundtrip, found 3 hours ago
CA $387
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Sat, Sep 26 from Buffalo to Seattle, returning Sat, Oct 3, priced at CA $387 found 3 hours ago
JetBlue Airways
Sat, Sep 26 - Sat, Oct 3
BUF
Buffalo
SEA
Seattle
CA $395 Roundtrip, found 3 hours ago
CA $395
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Sat, Sep 26 from Buffalo to Seattle, returning Sat, Oct 3, priced at CA $395 found 3 hours ago
JetBlue Airways
Tue, Sep 15 - Tue, Sep 22
BUF
Buffalo
SEA
Seattle
CA $401 Roundtrip, found 2 days ago
CA $401
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Sep 15 from Buffalo to Seattle, returning Tue, Sep 22, priced at CA $401 found 2 days ago
JetBlue Airways
Sat, Oct 3 - Tue, Oct 13
BUF
Buffalo
SEA
Seattle
CA $402 Roundtrip, found 1 day ago
CA $402
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Oct 3 from Buffalo to Seattle, returning Tue, Oct 13, priced at CA $402 found 1 day ago
JetBlue Airways
Tue, Sep 15 - Thu, Sep 24
BUF
Buffalo
SEA
Seattle
CA $431 Roundtrip, found 6 hours ago
CA $431
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Tue, Sep 15 from Buffalo to Seattle, returning Thu, Sep 24, priced at CA $431 found 6 hours ago
JetBlue Airways
Tue, Sep 29 - Mon, Oct 5
BUF
Buffalo
SEA
Seattle
CA $432 Roundtrip, found 1 day ago
CA $432
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Sep 29 from Buffalo to Seattle, returning Mon, Oct 5, priced at CA $432 found 1 day ago
Delta
Tue, Sep 15 - Tue, Sep 22
BUF
Buffalo
SEA
Seattle
CA $455 Roundtrip, found 2 days ago
CA $455
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 15 from Buffalo to Seattle, returning Tue, Sep 22, priced at CA $455 found 2 days ago
American Airlines
Thu, Sep 24 - Tue, Sep 29
BUF
Buffalo
SEA
Seattle
CA $493 Roundtrip, found 21 hours ago
CA $493
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Sep 24 from Buffalo to Seattle, returning Tue, Sep 29, priced at CA $493 found 21 hours ago
United
Sat, Aug 29 - Tue, Sep 1
BUF
Buffalo
SEA
Seattle
CA $677 Roundtrip, found 2 days ago
CA $677
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 29 from Buffalo to Seattle, returning Tue, Sep 1, priced at CA $677 found 2 days ago
Sun Country Airlines
Fri, Jul 24 - Sat, Aug 1
BUF
Buffalo
SEA
Seattle
CA $899 Roundtrip, found 4 days ago
CA $899
Roundtrip
found 4 days ago
Select Sun Country Airlines flight, departing Fri, Jul 24 from Buffalo to Seattle, returning Sat, Aug 1, priced at CA $899 found 4 days ago

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $847
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $847

Frequently asked questions

What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
September is typically the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares of approximately £297. This is about 17% lower than the average price throughout the year. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include January and October.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly from Buffalo Niagara Intl. (BUF) to Seattle - Tacoma Intl. (SEA) for a good value is typically in September or October. During these months, you can expect average return flight prices around £297. This period often offers a balance of more affordable fares as the peak summer travel season winds down, and before the holiday rush begins, giving you a good chance to find convenient flight times.*Prices based on flights available on Expedia in the last year.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 64 connecting flights per day from Buffalo Niagara Intl. (BUF) to Seattle - Tacoma Intl. (SEA). Some common connection points include O'Hare Intl. (ORD), Baltimore Washington Intl. Thurgood Marshall (BWI), and Midway Intl. (MDW).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 5:00 AM local time. This flight is operated by American Airlines and is a seasonal service active in April and May. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Seattle - Tacoma Intl. (SEA) on a Sunday, with around 39 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, United Airlines, and Delta Air Lines. Flight schedules are consistent throughout the week, so you'll find similar options on other days.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Seattle - Tacoma Intl. (SEA) are in the early morning, from 6am to 9am. Approximately 40% of passengers prefer this time window. Many major carriers, including American Airlines, United Airlines and Delta Air Lines, offer flights during this window. Many travelers prefer these early morning flights because they allow you to arrive at your destination with plenty of time to settle in or start your day.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flights from BUF to SEA with one stop typically take around 7 hours 50 minutes, covering approximately 2,116 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for BUF to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Buffalo Niagara Intl. (BUF)?
If you're planning to travel to Seattle from Buffalo Niagara Intl. (BUF), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like O'Hare Intl. (ORD), Baltimore Washington Intl. Thurgood Marshall (BWI), LaGuardia (LGA) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel 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 $386
Distance
3385 km

Book with confidence

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 $387 rising to CA $899.  

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.

Buffalo to Seattle Flights

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*Available to Expedia members.