BUF - SEA

C$ 227 Find Cheap Flights from Buffalo to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Seattle departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Seattle, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
C$ 435
Typical prices: C$ 867-C$ 664
JetBlue
Sat 4/7Sat 4/7
BUF - SEA • 1 stop
Cheapest one-way flights
C$ 227
Typical prices: C$ 264-C$ 508
Delta
Sat 4/7
BUF - SEA • 1 stop
Top airlines
Cheapest • from C$ 382 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Buffalo and Seattle. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg C$ 537 (round-trip)
Shortest trip • 7h 09m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Seattle (BUF-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Seattle

Sat, 4 Jul - Sat, 4 Jul
JetBlue Logo
6:00 a.m. - 12:27 p.m.
BUF
-
SEA
9h 27m
1 stop
JetBlue Logo
11:44 p.m. - 12:36 p.m.
SEA
-
BUF
9h 52m
1 stop
C$ 435JetBlue
Tue, 30 Jun - Fri, 3 Jul
Delta Logo
7:30 p.m. - 11:59 p.m.
BUF
-
SEA
7h 29m
1 stop
Delta Logo
2:30 p.m. - 11:59 p.m.
SEA
-
BUF
6h 29m
1 stop
C$ 452Delta
Sat, 4 Jul - Thu, 9 Jul
JetBlue Logo
6:00 a.m. - 12:27 p.m.
BUF
-
SEA
9h 27m
1 stop
JetBlue Logo
11:45 a.m. - 11:43 p.m.
SEA
-
BUF
8h 58m
1 stop
C$ 485JetBlue
Wed, 9 Sep - Sun, 20 Sep
JetBlue Logo
12:10 p.m. - 8:42 p.m.
BUF
-
SEA
11h 32m
1 stop
JetBlue Logo
11:55 p.m. - 11:14 a.m.
SEA
-
BUF
8h 19m
1 stop
C$ 489JetBlue
Tue, 8 Sep - Wed, 30 Sep
Southwest Logo
6:25 p.m. - 11:35 p.m.
BUF
-
SEA
8h 10m
1 stop
Southwest Logo
6:40 a.m. - 9:05 p.m.
SEA
-
BUF
11h 25m
2 stops
C$ 523Southwest
Fri, 3 Jul - Tue, 7 Jul
JetBlue Logo
1:31 p.m. - 10:49 p.m.
BUF
-
SEA
12h 18m
1 stop
JetBlue Logo
11:44 p.m. - 12:36 p.m.
SEA
-
BUF
9h 52m
1 stop
C$ 534JetBlue
Sat, 4 Jul - Mon, 6 Jul
JetBlue Logo
6:00 a.m. - 12:27 p.m.
BUF
-
SEA
9h 27m
1 stop
JetBlue Logo
11:45 a.m. - 11:48 p.m.
SEA
-
BUF
9h 03m
1 stop
C$ 541JetBlue
Wed, 9 Sep - Sun, 20 Sep
Delta Logo
11:15 a.m. - 7:33 p.m.
BUF
-
SEA
11h 18m
1 stop
Delta Logo
6:00 a.m. - 3:13 p.m.
SEA
-
BUF
6h 13m
1 stop
C$ 547Delta
Sun, 30 Aug - Tue, 1 Sep
Southwest Logo
7:00 p.m. - 11:10 p.m.
BUF
-
SEA
7h 10m
1 stop
Southwest Logo
5:20 a.m. - 3:15 p.m.
SEA
-
BUF
6h 55m
1 stop
C$ 548Southwest
Tue, 8 Sep - Wed, 30 Sep
Southwest Logo
3:00 p.m. - 11:05 p.m.
BUF
-
SEA
11h 05m
2 stops
Southwest Logo
6:40 a.m. - 8:35 p.m.
SEA
-
BUF
10h 55m
2 stops
C$ 554Southwest
Booking Insights

KAYAK's insights & trends for Buffalo to Seattle flights

Get data-powered insights and trends into flights from Buffalo to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Buffalo to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buffalo to Seattle departing in July.

What is the cheapest month to fly from Buffalo to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to Seattle is September, where tickets cost C$ 523 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is C$ 812 and C$ 805 respectively.

How far in advance should I book a flight from Buffalo to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buffalo to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Buffalo to Seattle, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 227
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Buffalo to Seattle

When to book flights from Buffalo to Seattle

Are your dates flexible? Find out the best times to travel from Buffalo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Seattle

  • Are there any transportation options to get me from the Seattle Tacoma International Airport to downtown Seattle?

    A very convenient choice for transportation from the airport is to travel on the King County Metro bus route 124, that can make the trip in around 40 minutes. You can also ride on the Sound Transit 1-Line that will take you from the airport to the downtown area in around 30 minutes.

  • If I plan on renting a car when I arrive at Seattle Tacoma International Airport, where will I find the rental car companies?

    All the rental car companies that operate at this airport do so at the offsite rental car facility. To access this facility after a flight, travel aboard one of the complimentary shuttle buses that passengers can pick up on the lower drive outside of the baggage claim level. There are pick-up points at both ends of the terminal building.

  • If I am going to be using a rideshare service to get me from the Seattle Tacoma International Airport after a flight, where should I plan on meeting my ride?

    All rideshare service vehicles will make their pick-ups at this airport on floor number three of the parking garage. Passengers should look for their vehicles in Parking Rows G, H, I, and J in both the Purple and Orange sections of the garage.

  • Are there any hotels that have a convenient location close to the terminal buildings at the sea Seattle Tacoma International Airport?

    A very convenient choice that sits right along Pacific Highway South across from the terminal building at the airport is the Hilton Seattle Airport & Conference Center, and passengers can access this hotel by walking directly from the airport to the hotel via the sky bridge. Travelers who prefer not to walk will also find this airport offers a complimentary airport shuttle.

  • What is the cheapest flight from Buffalo to Seattle?

    In the last 5 days, the lowest price for a flight from Buffalo to Seattle was C$ 192 for a one-way ticket and C$ 382 for a round-trip.

  • Which airports will I be using when flying from Buffalo to Seattle?

    Buffalo airport is called Buffalo and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Buffalo to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to Seattle?

    SkyTeam is the only airline alliance operating flights between Buffalo and Seattle.

  • Which is the best airline for flights from Buffalo to Seattle, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Buffalo to Seattle are Southwest and Delta. With an average price for the route of C$ 774 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 537 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Buffalo to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Buffalo to Seattle

  • A fantastic way to get to the Buffalo Niagara International Airport (BUF) from the center of Buffalo without having to drive in your own car is to take the Line 24 bus operated by NFTA can make this trip in around 30 minutes.
  • If you plan on driving your own car to Buffalo Niagara International Airport, this airport allows you to book your parking and reserve a spot online on their website. Passengers looking for the most economical choice for parking at this airport should consider the Economy Parking Lot, that has ample blue signage showing its location just offsite from the airport property.
  • If you plan on taking a pet or a service animal with you through the Buffalo Niagara International Airport, it is important to know that this airport offers a pet relief area just outside of the terminal building as well as an indoor pet relief area with a location between Gates 11 and 14.
  • If you are looking for a way to pass the time before a flight from the Buffalo Niagara International Airport, this airport offers a barbershop that you will find on the upper level of the airport just before the security checkpoint.
  • If you are a mother who is nursing and traveling through the Buffalo Niagara International Airport, this airport features a nursing room that has a location near gate 14. The nursing room features a comfortable leather chair, power outlets, a table, as well as a sink.

Reviews of the top airlines flying from Buffalo to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Transparency from pilots, quick boarding and exiting the plane, staff greeted to each and everyone,

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Everything you need to know for your flight from Buffalo to Seattle

Information on your arrival and departure airports