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Uncover the best deals on Buffalo to Seattle flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest BUF - SEA Flights
Useful information for finding best airline tickets from Buffalo Niagara International to Seattle Tacoma International on your next trip.
Cheapest Round Trip Flight
$271
Southwest Airlines
• 1 stop
• 13h 40m
Sep 01 – Sep 09
The cheapest round trip flight from Buffalo to Seattle (BUF-SEA-BUF) is currently $271
Fastest Flight
12h 5m
The fastest nonstop flight from Buffalo to Seattle (BUF-SEA) takes 12h 5m
Top Airlines Flying from Buffalo to Seattle
Latest Flight Deals from Buffalo (BUF) to Seattle (SEA)
Compare and book low fare round-trip air tickets from Buffalo to Seattle. Ideal for travelers with confirmed return itineraries.
Sep 01 - Sep 09, Economy
Buffalo → Seattle
13h 40m
12:35 PM - 5:55 PM • 1 stop
Buffalo → Seattle
15h 25m
5:20 AM - 5:45 PM • 2 stops
Southwest Airlines
Sep 01 - Sep 09, Economy
Buffalo → Seattle
12h 5m
8:40 AM - 1:05 PM • 1 stop
Buffalo → Seattle
18h 45m
6:40 AM - 9:05 PM • 2 stops
Southwest Airlines
Sep 01 - Sep 09, Economy
Buffalo → Seattle
29h 18m
6:40 AM - 9:38 PM • 2 stops
Buffalo → Seattle
15h 21m
6:00 AM - 6:21 PM • 1 stop
Delta Airlines
Sep 01 - Sep 09, Economy
Buffalo → Seattle
25h 48m
8:57 AM - 9:45 PM • 2 stops
Buffalo → Seattle
24h 14m
2:30 PM - 8:24 AM • 2 stops
Delta Airlines
Sep 01 - Sep 09, Economy
Buffalo → Seattle
27h 30m
6:40 AM - 8:30 PM • 2 stops
Buffalo → Seattle
24h 14m
2:30 PM - 8:24 AM • 2 stops
Delta Airlines
Flying to Seattle soon? We've surfaced some of the most affordable last-minute flights from Buffalo to Seattle, ideal for urgent plans or spontaneous trips.
Jul 19 - Jul 26, Economy
Buffalo → Seattle
17h 10m
5:15 AM - 12:45 PM • 2 stops
Buffalo → Seattle
10h 50m
2:25 PM - 12:15 AM • 1 stop
Southwest Airlines
Jul 19 - Jul 26, Economy
Buffalo → Seattle
18h 30m
3:00 PM - 11:10 PM • 2 stops
Buffalo → Seattle
10h 20m
5:15 AM - 2:35 PM • 1 stop
Southwest Airlines
Jul 19 - Jul 26, Economy
Buffalo → Seattle
12h 10m
5:15 AM - 9:45 AM • 1 stop
Buffalo → Seattle
15h 35m
8:45 AM - 9:20 PM • 2 stops
Southwest Airlines
Jul 19 - Jul 26, Economy
Buffalo → Seattle
12h 15m
11:50 AM - 4:25 PM • 1 stop
Buffalo → Seattle
13h 50m
5:15 AM - 4:45 PM • 2 stops
Southwest Airlines
Jul 19 - Jul 26, Economy
Buffalo → Seattle
15h 55m
7:20 AM - 2:15 PM • 2 stops
Buffalo → Seattle
10h 50m
2:25 PM - 12:15 AM • 1 stop
Southwest Airlines
FAQs on Buffalo to Seattle Flights
What are the airports in Buffalo?
BUF
What’s the most popular airline flying from BUF to SEA?
The most popular airline flying from Buffalo to Seattle are
Can I fly from BUF to SEA non-stop?
NO
Which airlines fly nonstop between Buffalo and Seattle?
The non-stop flights between Buffalo and Seattle are .
What’s the earliest departure time from BUF to SEA Airport?
The earliest flight leaves BUF at 5:15 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Buffalo to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BUF to SEA?
Read the fare rules of the Buffalo to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Buffalo and Seattle?
operate flights between Buffalo and Seattle
How long does a flight from Buffalo to Seattle take?
It takes approximately 5 hour to fly non-stop from BUF to SEA, which is 2121.97 miles by air.
Which airlines provide the cheapest flights from Buffalo (BUF) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from BUF were found on DL : USD 340
Do I need a passport to fly between BUF and SEA?
No
What’s the latest departure time from BUF to SEA ?
The last flight leaves BUF at 3:00 pm
Buffalo (BUF) to Seattle (SEA): Airport Information
| Origin Airport | Buffalo Niagara International , Buffalo, US |
| Destination Airport | Seattle Tacoma International , Seattle, US |
| Distance | 2122 miles |
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