Cheap Flights from Seattle (SEAA) to Buffalo (BUF)

Compare Seattle to Buffalo Niagara flight deals

Find the cheapest month or even day of the year to fly to Buffalo Niagara

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Flight deals from Seattle to Buffalo Niagara

Looking for a cheap last-minute deal or the best return flight from Seattle to Buffalo Niagara? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Buffalo Niagara

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Buffalo Niagara flights are currently cheapest in October.

Seattle to Buffalo Niagara: Alternative routes

Compare routes from Seattle to Buffalo below. You may find an airport to fly into that's cheaper, faster, or easier than Buffalo Niagara.

Seattle to Buffalo: Flight information

The things to know before you go.
Cheapest flight found$459
Cheapest month to flyOctober

Finding cheap flights from Seattle to Buffalo Niagara: Frequently asked questions

The best price we found for a return flight from Seattle to Buffalo Niagara is $459. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Buffalo Niagara. But we found flights with one stop from $459.
As of August 2025, there are no flights flying from Seattle to Buffalo Niagara.
The cheapest month to fly from Seattle to Buffalo Niagara is usually October.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Buffalo Niagara Airport on Wednesday, 15 October 2025.
No airlines currently offer direct flights between Seattle and Buffalo Niagara Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buffalo Niagara but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buffalo is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Buffalo Niagara is United .

Flying from Seattle to Buffalo Niagara International Airport (BUF): What you need to know

  • Your adventure will begin at Seattle-Tacoma International Airport (SEA), the main airport in Seattle. Search for flights from Seattle to Buffalo Niagara International Airport (BUF) that jet out of this terminal.

  • The timezone in Buffalo is UTC-4, which is three hours ahead of Seattle. Buffalo Niagara International Airport is located in Buffalo.

  • Give yourself enough time to make your flight from Seattle to BUF. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at security and check-in are likely if you're flying during high season, so allow even more breathing space. The recommendation for peak periods? Arrive up to four hours ahead for international flights and two hours for domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • SEA is around 23 kilometres from central Seattle. If you're ride-sharing, driving or catching a cab from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be around 55 minutes.

  • Catching an early flight from Seattle to Buffalo Niagara International Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these stays near Seattle-Tacoma International Airport:

  • Seattle-Tacoma International Airport has an excellent on-time record, making delays less likely. Departures from SEA land on schedule 81.27% of the time.

Lake Union Sea Plane Base Airport (LKE)

  • With public transport, you can travel from central Seattle to LKE in around 25 minutes. The airport is roughly 3 kilometres away, and making the journey by car takes approximately 10 minutes.

  • Want to enjoy an extra night away before your Seattle to BUF flight? Kick back in a hotel near Lake Union Sea Plane Base Airport before your adventure officially starts. These stays have your key waiting:

About Buffalo Niagara International Airport (BUF)

  • Have a late flight from Seattle to Buffalo Niagara International Airport? Don't let it steal your sleep. Check in to one of these hotels near BUF and turn in quicker:

  • Explore without limits with a Buffalo Niagara International Airport rental car. Pick up your wheels from Dollar, Hertz or Budget and discover more of Buffalo and beyond.

  • For the lowest price, book your vehicle around two weeks ahead of your Seattle to Buffalo Niagara International Airport flight.

  • The address for BUF is Genesee Street.

Getting from Buffalo Niagara International Airport (BUF) to central Buffalo

  • Buffalo Niagara International Airport is roughly 13 kilometres from central Buffalo. How long it takes to get there by cab or car hire will depend on the time of day. Do a little research beforehand.

  • Travelling on public transport will take you around 1 hour 15 minutes.

How to find the cheapest flights from Seattle to Buffalo Niagara International Airport (BUF)

  • Currently, $229 is the lowest price we've found for a one-way ticket from Seattle to Buffalo Niagara International Airport. The cheapest price for a return flight is $459. Remember fares may change due to demand at the time of booking.

  • Booking in advance is often the key to scoring a cheap flight from Seattle to BUF. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely pay.

  • If you have some flexibility with your travel dates, use the 'Whole month' search tool. It'll show you the lowest price across the month when searching for your Seattle to Buffalo Niagara International Airport ticket.

  • Spend less time searching for cheap flight tickets from Seattle to BUF by creating a Price Alert. We'll send you an email or push notification on the app when prices go down.

  • Filters make it easier to dig up a deal for your flight from Seattle to Buffalo Niagara International Airport. Pick the flight times, carriers and stops that line up with your plans. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Seattle to Buffalo Niagara International Airport (BUF)

  • August is the most popular month for flights from Seattle to Buffalo Niagara International Airport (BUF). Visit Buffalo in May for a more laid-back experience.

  • When booking your Seattle to BUF flight ticket, consider the weather you're most comfortable in. July is the warmest month in Buffalo, with temperatures ranging from 15ºC (59ºF) to 28ºC (82ºF).

  • January sees temperatures of between -10ºC (14ºF) and 2ºC (36ºF). Search for cheap tickets from Seattle to Buffalo Niagara International Airport around that time if you want to travel when it's cooler.

More about Buffalo

  • After booking your flight from Seattle to Buffalo Niagara International Airport, find a hotel that puts you in a great location. Make one of these accommodation options your base for exploring Buffalo:

  • Your trip to Buffalo won't be complete without checking out the sights. Attractions you can't miss include Frank Lloyd Wright's Darwin D. Martin House Complex, Albright-Knox Art Gallery and Forest Lawn.

Explore more of the United States

  • You've seen Buffalo, now it's time to explore other parts of the United States. Journey about 290 kilometres south-west to Cleveland to check off its must-visit sights. From Rock & Roll Hall of Fame & Museum to Cleveland Museum of Art and Cleveland Museum of Natural History, you'll have a packed itinerary ahead.

  • Around 290 kilometres south of Buffalo, Pittsburgh is another essential stop in the United States. Start your sightseeing at Andy Warhol Museum, Carnegie Museum of Art and The Frick Pittsburgh.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.