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Uncover the best deals on Seattle to Buffalo flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest SEA - BUF Flights
Useful information for finding best airline tickets from Seattle Tacoma International to Buffalo Niagara International on your next trip.
Cheapest Round Trip Flight
$443
Delta Airlines
• 2 stops
• 22h 30m
Sep 11 – Sep 20
The cheapest round trip flight from Seattle to Buffalo (SEA-BUF-SEA) is currently $443
Cheapest One way Flight
$253
Delta Airlines
• 1 stop
• 16h 46m
Aug 27
The cheapest one way flight from Seattle to Buffalo (SEA-BUF) is currently $253
Fastest Flight
11h 40m
The fastest nonstop flight from Seattle to Buffalo (SEA-BUF) takes 11h 40m
Top Airlines Flying from Seattle to Buffalo
Latest Flight Deals from Seattle (SEA) to Buffalo (BUF)
Compare and book low fare round-trip air tickets from Seattle to Buffalo. Ideal for travelers with confirmed return itineraries.
Sep 11 - Sep 20, Economy
Seattle → Buffalo
22h 30m
5:45 AM - 10:35 PM • 2 stops
Seattle → Buffalo
18h 30m
7:00 AM - 3:10 PM • 1 stop
Delta Airlines
Sep 11 - Sep 20, Economy
Seattle → Buffalo
13h 45m
10:30 PM - 9:55 AM • 1 stop
Seattle → Buffalo
25h 45m
7:25 AM - 8:10 PM • 2 stops
Southwest Airlines
Sep 11 - Sep 20, Economy
Seattle → Buffalo
16h 40m
11:05 PM - 12:05 PM • 2 stops
Seattle → Buffalo
25h 45m
7:25 AM - 8:10 PM • 2 stops
Southwest Airlines
Sep 11 - Sep 20, Economy
Seattle → Buffalo
18h 45m
6:30 AM - 8:55 PM • 2 stops
Seattle → Buffalo
33h 50m
7:25 AM - 12:55 AM • 3 stops
Southwest Airlines
Sep 11 - Sep 20, Economy
Seattle → Buffalo
11h 40m
5:15 AM - 3:15 PM • 1 stop
Seattle → Buffalo
11h 55m
7:00 PM - 11:15 PM • 1 stop
Southwest Airlines
Explore competitive one-way airfare options for SEA - BUF flights. Best suited for flexible or open-ended travel plans.
Flying to Buffalo soon? We've surfaced some of the most affordable last-minute flights from Seattle to Buffalo, ideal for urgent plans or spontaneous trips.
FAQs on Seattle to Buffalo Flights
What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to BUF?
The most popular airline flying from Seattle to Buffalo are
Can I fly from SEA to BUF non-stop?
NO
Which airlines fly nonstop between Seattle and Buffalo?
The non-stop flights between Seattle and Buffalo are .
What’s the earliest departure time from SEA to BUF Airport?
The earliest flight leaves SEA at 5:15 am and lands in BUF - Buffalo Niagara International
What are the airports in Buffalo?
BUF
Can I make changes to my Seattle to Buffalo 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 SEA to BUF?
Read the fare rules of the Seattle to Buffalo 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 Seattle and Buffalo?
operate flights between Seattle and Buffalo
How long does a flight from Seattle to Buffalo take?
It takes approximately 5 hour to fly non-stop from SEA to BUF, which is 2121.97 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Buffalo (BUF) ?
In the past couple of days, the cheapest tickets to BUF from SEA were found on DL : USD 253
Do I need a passport to fly between SEA and BUF?
No
What’s the latest departure time from SEA to BUF ?
The last flight leaves SEA at 11:59 pm
Seattle (SEA) to Buffalo (BUF): Airport Information
| Origin Airport | Seattle Tacoma International , Seattle, US |
| Destination Airport | Buffalo Niagara International , Buffalo, US |
| Distance | 2122 miles |
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