Cheap Flights from Seattle / Tacoma International to Buffalo Niagara

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Compare Seattle / Tacoma International to Buffalo Niagara flight deals

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Flight deals from Seattle / Tacoma International to Buffalo Niagara

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

Find the cheapest month to fly from Seattle / Tacoma International to Buffalo Niagara

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

Seattle / Tacoma International to Buffalo Niagara: Alternative routes

Compare routes from Seattle / Tacoma International 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 found303 €
Cheapest month to flyJuly

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

The best price we found for a return flight from Seattle / Tacoma International to Buffalo Niagara is 303 €. 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 / Tacoma International to Buffalo Niagara. But we found flights with one or more stops from 303 €.
As of June 2025, there are no flights flying from Seattle / Tacoma International to Buffalo Niagara.
The cheapest month to fly from Seattle / Tacoma International to Buffalo Niagara is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Buffalo Niagara Airport on Wednesday, 30 July 2025.
No airlines currently offer direct flights between Seattle / Tacoma International Airport 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.
Currently, Delta offers the cheapest flight tickets to Buffalo Niagara.

Travelling from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF): what you need to know

  • Arrive at the airport on time so you don't miss your SEA to BUF flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • You can expect longer lines during popular months like July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.

  • If you want to add a stop to your trip, just uncheck 'Direct flights only' when searching for your ticket from Seattle-Tacoma International Airport to Buffalo Niagara International Airport. Here are the most popular stopovers between SEA and BUF:

    • Detroit Metropolitan Wayne County Airport

    • O'Hare International Airport

    • Chicago Midway International Airport

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

  • 151 € is the lowest price for a one-way Seattle-Tacoma International Airport to Buffalo Niagara International Airport flight. A return flight starts from 303 €. These fares may change based on demand and availability.

  • It's usually best to book ahead of time if you want to get cheap tickets from SEA to BUF. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Seattle-Tacoma International Airport to Buffalo Niagara International Airport is easy if you're flexible with your travel dates. Use the 'Whole month' function to see the lowest prices across each month and snap up a great deal.

  • Stay on top of deals for cheap flights from SEA to BUF by creating a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Pick your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Seattle-Tacoma International Airport to Buffalo Niagara International Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport scores top marks for on-time performance. 81.27% of flights that depart SEA land on time.

  • To reach Seattle-Tacoma International Airport from central Seattle, it takes around 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 23 kilometres from the airport to the city centre.

  • You can expect a journey time of around 55 minutes when using public transport.

  • Get your travels off to a relaxed start by staying near SEA. Whether you're taking an early flight from Seattle-Tacoma International Airport to Buffalo Niagara International Airport or just don't like being rushed, these stays are ideal:

Arriving at Buffalo Niagara International Airport (BUF)

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a Seattle-Tacoma International Airport to Buffalo Niagara International Airport flight. Book one of these accommodation options near BUF instead:

  • Follow your own route with a Buffalo Niagara International Airport rental car. Book your wheels from Dollar, Hertz or Budget and experience more of Buffalo and beyond.

  • Reserving your ride from Buffalo Niagara International Airport around two weeks ahead increases your chances of getting a good deal.

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

  • You'll find BUF at Genesee Street.

  • Buffalo Niagara International Airport to central Buffalo has a drive time of around 20 minutes. It's approximately 18 kilometres away.

  • It typically takes 1 hour 15 minutes if you're using public transport.

When to fly to Buffalo Niagara International Airport (BUF)

  • The quietest month for a flight from Seattle-Tacoma International Airport to Buffalo Niagara International Airport is May, while August is the busiest. Choose the ideal time to go to Buffalo based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Seattle-Tacoma International Airport to Buffalo Niagara International Airport for July if you want to go to Buffalo during its warmest month. Expect temperatures of between 15ºC (59ºF) and 28ºC (82ºF).

  • If you want cooler conditions, search for a cheap ticket from SEA to BUF in January. Average temperatures are between -10ºC (14ºF) and 2ºC (36ºF) then.

Explore more of United States

  • Buffalo is easy to fall in love with, but there are so many other corners of United States you should also see. About 467 kilometres south-east of Buffalo, a visit to New York will keep your itinerary busy. Don't miss top attractions like Statue of Liberty, Central Park and Empire State Building.

  • Philadelphia is another well-known destination in United States and is around 451 kilometres south-east of Buffalo. No journey is complete without dropping by Liberty Bell, Independence Hall and Philadelphia Museum of Art.

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