Cheap flights from Buffalo to Seattle from C$ 144
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Seattle departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Buffalo to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
If you aren’t able to travel to Seattle during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of C$ 569.
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Friday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 522. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 795. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.
What is the cheapest time of day to depart on your flight to Seattle?
Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Buffalo to Seattle during this time can be as low as C$ 451. Flights in the morning are often more expensive with an average ticket price of C$ 754.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Buffalo when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 645 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Buffalo for as low as C$ 500 on momondo.
When to book flights from Buffalo to Seattle
Cheap Buffalo to Seattle (BUF to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Buffalo to Seattle
How far is Buffalo to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 3394.7 km away from Buffalo. Flights usually cover this in 6h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Buffalo Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Buffalo Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Buffalo Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Buffalo Airport to Seattle/Tacoma Intl Airport is 2 as of June 2025.
How old do you have to be to fly from Buffalo Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Buffalo to Seattle?
Based on momondo bookings for flights between Buffalo and Seattle, the leading plane model is Airbus A319, making up 50.00% of the total bookings. Other popular models include Airbus A220-300 with 50.00%.
What is the most popular airline from Buffalo to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Buffalo to Seattle is Southwest (56% of total bookings). The next most popular airline is United Airlines (44%).
Best airlines flying from Buffalo to Seattle
Compare and see reviews for airlines that fly from Buffalo to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 462 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom C$ 490 | Free Cancellation | Rating 8.0 4,278 reviews |
Travelling to a place near Seattle?
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Why should I use momondo to find a flight deal from Buffalo to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Buffalo to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Buffalo to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from Buffalo to Seattle?
Once all potential Buffalo to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Buffalo to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Buffalo and alert you when they change.