$104 Cheap flights from Buffalo Niagara Intl. to Seattle - Tacoma Intl. (BUF to SEA)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly from Buffalo Niagara Intl. to Seattle - Tacoma Intl.

Compare Flight Prices from Buffalo to Seattle

Affordable Airfare Tickets from BUF to SEA Airport

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $212 round trip and $104 one way. Prices and availability subject to change. Additional terms may apply.

Fri, Jun 6 - Mon, Jun 9
BUF
Buffalo
SEA
Seattle
$212 Roundtrip, found 1 hour ago
$212
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Jun 6 from Buffalo to Seattle, returning Mon, Jun 9, priced at $212 found 1 hour ago
Fri, May 30 - Sun, Jun 1
BUF
Buffalo
SEA
Seattle
$232 Roundtrip, found 1 day ago
$232
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 30 from Buffalo to Seattle, returning Sun, Jun 1, priced at $232 found 1 day ago
Mon, Jun 2 - Fri, Jun 6
BUF
Buffalo
SEA
Seattle
$252 Roundtrip, found 3 days ago
$252
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Buffalo to Seattle, returning Fri, Jun 6, priced at $252 found 3 days ago
Fri, Jun 6 - Fri, Jun 13
BUF
Buffalo
SEA
Seattle
$253 Roundtrip, found 8 hours ago
$253
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Jun 6 from Buffalo to Seattle, returning Fri, Jun 13, priced at $253 found 8 hours ago
Sat, Jul 5 - Wed, Jul 16
BUF
Buffalo
SEA
Seattle
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sat, Jul 5 from Buffalo to Seattle, returning Wed, Jul 16, priced at $273 found 6 days ago
Mon, Jun 2 - Fri, Jun 13
BUF
Buffalo
SEA
Seattle
$274 Roundtrip, found 7 hours ago
$274
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Buffalo to Seattle, returning Fri, Jun 13, priced at $274 found 7 hours ago
Wed, Jun 11 - Mon, Jun 16
BUF
Buffalo
SEA
Seattle
$275 Roundtrip, found 18 hours ago
$275
Roundtrip
found 18 hours ago
Select JetBlue Airways flight, departing Wed, Jun 11 from Buffalo to Seattle, returning Mon, Jun 16, priced at $275 found 18 hours ago
Thu, Jun 12 - Fri, Jun 20
BUF
Buffalo
SEA
Seattle
$276 Roundtrip, found 1 hour ago
$276
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Thu, Jun 12 from Buffalo to Seattle, returning Fri, Jun 20, priced at $276 found 1 hour ago
Mon, Aug 25 - Wed, Aug 27
BUF
Buffalo
SEA
Seattle
$291 Roundtrip, found 8 hours ago
$291
Roundtrip
found 8 hours ago
Select JetBlue Airways flight, departing Mon, Aug 25 from Buffalo to Seattle, returning Wed, Aug 27, priced at $291 found 8 hours ago
Fri, Jun 6 - Mon, Jun 9
BUF
Buffalo
SEA
Seattle
$291 Roundtrip, found 1 hour ago
$291
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Jun 6 from Buffalo to Seattle, returning Mon, Jun 9, priced at $291 found 1 hour ago

Seattle - Tacoma Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
The Inn at Virginia Mason

The Inn at Virginia Mason

2.5 out of 5
per person
Jun 7 - Jun 14
found 4 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to Seattle (SEA)
Denny Park Hotel

Denny Park Hotel

4 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 14
found 4 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to Seattle (SEA)
Lotte Hotel Seattle

Lotte Hotel Seattle

5 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 14
found 5 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to Seattle (SEA)
citizenM Seattle Pioneer Square

citizenM Seattle Pioneer Square

4 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 14
found 4 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to Seattle (SEA)
Mediterranean Inn

Mediterranean Inn

3 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 14
found 5 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to Seattle (SEA)
Don't see what you're looking for?
See all available trips from Buffalo Niagara Intl. to Seattle - Tacoma Intl.
View all trips

Frequently asked questions

Can I catch a flight from Buffalo Niagara Intl. Airport (BUF) to Seattle - Tacoma Intl. Airport (SEA) right now?
Ensure you go to our Covid-19 Travel Advisor to see if there are any current quarantine requirements and travel advice reports in place in Seattle - Tacoma Intl. Airport (SEA) when flying in from BUF.
Are there direct flights from BUF to SEA?
Unfortunately, there are no direct flights from Buffalo Niagara Intl. Airport (BUF) to Seattle - Tacoma Intl. Airport (SEA). But we can point you to airlines which offer flights with only one stopover. Check out American Airlines, Delta and United Airlines.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Seattle - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.
How long is the flight from Buffalo Niagara International Airport to SEA?
It typically takes about 7 hours and 17 minutes to jet from BUF to Sea-Tac Airport. You’ll be cruising at altitude for a while, so keep yourself entertained with a film or flick through your favorite novel.
What is the flight distance from BUF to Seattle - Tacoma Intl. Airport (SEA)?
There’s a flight distance of 2,100 mi between Buffalo Niagara International Airport and Sea-Tac Airport. This is classified as a medium-haul flight. You’ll have lots of time to make the most of the in-flight entertainment and squeeze in some sleep if you’re feeling weary.
What airlines fly from Buffalo Niagara Intl. Airport (BUF) to Sea-Tac Airport?
At the moment, no airline offers direct flights to Sea-Tac Airport from Buffalo Niagara Intl. Airport (BUF). Touching down there will involve one stopover at least. Book your airfare in advance to pick up the best connections and price.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Alaska Airlines, Delta or Southwest Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity 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 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Buffalo to Seattle

 

Traveling From
Buffalo Niagara Intl.
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$212

Route Info

Flight path for flights from Buffalo Niagara International Airport to Seattle-Tacoma International Airport


Origin:
BUF - Buffalo Niagara International Airport
Destination:
SEA - Seattle-Tacoma International Airport
Distance:
2,199.00 miles


Airlines & Aircraft Used on BUF to SEA Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 737-800 (winglets) pax

Discover our best flights from Buffalo BUF to Seattle SEA. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Buffalo BUF to Seattle SEA at the right price  

Airfares to Seattle SEA from Buffalo BUF currently cost between $212 and $291. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Buffalo BUF to Seattle SEA 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Buffalo BUF to Seattle SEA on Travelocity starting at $104. Prices and availability subject to change. Additional terms may apply. 

 

Get to Seattle SEA from Buffalo BUF quicker with direct flights. 

Get to Seattle faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SEA from BUF to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Buffalo BUF to Seattle SEA

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SEA from BUF. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Buffalo BUF to Seattle SEA today 

If you’re flexible about when you travel, June is usually the cheapest month to fly from Buffalo BUF to Seattle SEA. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Seattle SEA from Buffalo BUF 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SEA from BUF have this option.  

 

Travel with confidence when you book flights to Seattle SEA from Buffalo BUF with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*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.