$141+ Cheap flights from Seattle to Buffalo (SEA - BUF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUF
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
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Cheapest flights from Seattle to BuffaloExplore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
Explore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
This JetBlue deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Tue 10/612:10 pm
BUF
- SEA
1 stop11h 32m
JetBlue
Deal found 6/21![JetBlue logo]()
$273
This Cheapflightsfares deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Thu 9/2412:10 pm
BUF
- SEA
1 stop11h 32m
JetBlue
Deal found 6/22![JetBlue logo]()
$296
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Sat 10/103:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Deal found 6/24![JetBlue logo]()
$315
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:30 pm
SEA
- BUF
1 stop6h 29m
Delta
Sat 7/43:57 pm
BUF
- SEA
1 stop10h 16m
Delta
Deal found 6/20![Delta logo]()
$323
This JetBlue deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Sat 10/243:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Deal found 6/20![JetBlue logo]()
$328
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:00 am
SEA
- BUF
1 stop7h 59m
American Airlines
Sun 9/65:11 am
BUF
- SEA
1 stop7h 18m
American Airlines
Deal found 6/23![American Airlines logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:55 pm
SEA
- BUF
1 stop10h 34m
JetBlue
Fri 9/182:30 pm
BUF
- SEA
1 stop11h 08m
JetBlue
Deal found 6/24![JetBlue logo]()
$365
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:55 pm
SEA
- BUF
1 stop9h 39m
Delta
Sat 10/104:30 pm
BUF
- SEA
1 stop10h 39m
Delta
Deal found 6/22![Delta logo]()
$369
This JetBlue deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Fri 10/233:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Deal found 6/20![JetBlue logo]()
$373
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:05 pm
SEA
- BUF
1 stop9h 15m
Southwest
Tue 9/83:00 pm
BUF
- SEA
2 stops11h 05m
Southwest
Deal found 6/20![Southwest logo]()
$374
Best flights from Seattle to BuffaloDiscover carefully curated flight deals from Seattle to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
Discover carefully curated flight deals from Seattle to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
This JetBlue deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Tue 10/612:10 pm
BUF
- SEA
1 stop11h 32m
JetBlue
Deal found 6/20![JetBlue logo]()
$273
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:20 am
SEA
- BUF
1 stop8h 34m
Delta
Tue 11/1012:09 pm
BUF
- SEA
1 stop9h 50m
Delta
Deal found 6/21![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:05 pm
SEA
- BUF
2 stops10h 40m
Southwest
Wed 8/123:55 pm
BUF
- SEA
1 stop10h 10m
Southwest
Deal found 6/23![Southwest logo]()
$419
This JetBlue deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Fri 10/233:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Deal found 6/20![JetBlue logo]()
$328
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Fri 10/163:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Deal found 6/24![JetBlue logo]()
$365
This Southwest deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:00 pm
SEA
- BUF
1 stop13h 25m
Southwest
Mon 8/243:55 pm
BUF
- SEA
2 stops10h 00m
Southwest
Deal found 6/24![Southwest logo]()
$451
This Southwest deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:15 am
SEA
- BUF
1 stop7h 00m
Southwest
Fri 9/185:40 am
BUF
- SEA
2 stops10h 35m
Southwest
Deal found 6/24![Southwest logo]()
$462
Last-minute flights from Seattle to BuffaloDiscover last-minute flight deals from Seattle to Buffalo. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Buffalo. Data last updated June 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:30 pm
SEA
- BUF
1 stop6h 29m
Delta
Sat 7/43:57 pm
BUF
- SEA
1 stop10h 16m
Delta
Deal found 6/20![Delta logo]()
$323
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:22 am
SEA
- BUF
1 stop9h 25m
American Airlines
Tue 7/145:20 am
BUF
- SEA
1 stop9h 20m
American Airlines
Deal found 6/20![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:25 pm
SEA
- BUF
1 stop7h 40m
Southwest
Sat 7/412:30 pm
BUF
- SEA
2 stops10h 40m
Southwest
Deal found 6/20![Southwest logo]()
$383
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:22 am
SEA
- BUF
1 stop9h 25m
American Airlines
Sat 7/48:08 am
BUF
- SEA
1 stop9h 19m
American Airlines
Deal found 6/20![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:56 pm
SEA
- BUF
1 stop6h 41m
American Airlines
Mon 7/68:08 am
BUF
- SEA
1 stop9h 19m
American Airlines
Deal found 6/23![American Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:13 pm
SEA
- BUF
2 stops14h 40m
Multiple Airlines
Mon 7/2011:47 am
BUF
- SEA
1 stop26h 35m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1811:59 pm
SEA
- BUF
1 stop7h 42m
Multiple Airlines
Sat 7/2512:28 pm
BUF
- SEA
2 stops23h 49m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$481
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:30 pm
SEA
- BUF
2 stops9h 30m
Southwest
Thu 7/304:10 pm
BUF
- SEA
2 stops10h 00m
Southwest
Deal found 6/22![Southwest logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:03 pm
SEA
- BUF
1 stop12h 45m
Multiple Airlines
Sat 8/812:28 pm
BUF
- SEA
2 stops23h 36m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$478
One-way flights from Seattle to BuffaloSearch for one-way flight options from Seattle to Buffalo. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
Search for one-way flight options from Seattle to Buffalo. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Deal found 6/23![JetBlue logo]()
$141
This JetBlue deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Deal found 6/23![JetBlue logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Deal found 6/23![JetBlue logo]()
$160
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:58 pm
SEA
- BUF
1 stop7h 40m
American Airlines
Deal found 6/23![American Airlines logo]()
$162
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:45 am
SEA
- BUF
1 stop8h 58m
JetBlue
Deal found 6/24![JetBlue logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Deal found 6/24![JetBlue logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:13 pm
SEA
- BUF
2 stops14h 40m
Frontier
Deal found 6/23![Frontier logo]()
$180
This Trip.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:06 pm
SEA
- BUF
2 stops15h 47m
Frontier
Deal found 6/21![Frontier logo]()
$181
This Trip.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:13 pm
SEA
- BUF
2 stops14h 40m
Frontier
Deal found 6/23![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:13 pm
SEA
- BUF
2 stops11h 16m
Frontier
Deal found 6/23![Frontier logo]()
$183
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:30 am
SEA
- BUF
1 stop6h 44m
Delta
Deal found 6/23![Delta logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:06 pm
SEA
- BUF
2 stops12h 23m
Frontier
Deal found 6/23![Frontier logo]()
$187
Find flight deals from Seattle to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $273 (JetBlue) |
One-way from | $141 (Cheapflightsfares) |
Popular in | December |
Cheapest in | October |
Average price | $579 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Seattle to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Sat 10/3
9:40 pm-8:24 am
1 stop7h 44m
Buffalo
Tue 10/6
12:10 pm-8:42 pm
1 stop11h 32m
$273
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Sat 10/17
11:55 pm-11:14 am
1 stop8h 19m
Buffalo
Fri 10/23
3:10 pm-10:38 pm
1 stop10h 28m
$328
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Mon 10/12
11:55 pm-11:14 am
1 stop8h 19m
Buffalo
Fri 10/16
3:10 pm-10:38 pm
1 stop10h 28m
$365
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Tue 11/3
7:20 am-6:54 pm
1 stop8h 34m
Buffalo
Tue 11/10
12:09 pm-6:59 pm
1 stop9h 50m
$369
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Thu 8/6
11:05 pm-12:45 pm
2 stops10h 40m
Buffalo
Wed 8/12
3:55 pm-11:05 pm
1 stop10h 10m
$419
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Mon 8/17
11:00 pm-3:25 pm
1 stop13h 25m
Buffalo
Mon 8/24
3:55 pm-10:55 pm
2 stops10h 00m
$451
Quickest round-trip
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Mon 9/14
5:15 am-3:15 pm
1 stop7h 00m
Buffalo
Fri 9/18
5:40 am-1:15 pm
2 stops10h 35m
$462
Cheapest one-way
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Tue 10/13
11:55 pm-11:14 am
1 stop8h 19m
$142
Quickest one-way
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Sun 9/6
5:30 am-3:14 pm
1 stop6h 44m
$162
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Mon 8/17
7:06 pm-10:29 am
2 stops12h 23m
$182
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Seattle to Buffalo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Buffalo in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Buffalo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Seattle with our price prediction graph.
SEA-BUF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Buffalo
How far ahead should I book a flight from Seattle to Buffalo?
The best time to book flights from Seattle to Buffalo is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Buffalo?
Currently, October is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $362). Flying from Seattle to Buffalo in December is currently the most expensive (average of $654). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Buffalo?
Reviews of airlines servicing Buffalo
Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated June 24, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Seattle to Buffalo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Seattle to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Batavia
Williamsville
Orchard Park
Eden
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Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 24, 2026.
Complete your trip
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Seattle and Buffalo flights
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Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 24, 2026.
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Top 7 airlines flying from Seattle to Buffalo
Discover the top 7 airlines that operate flights from Seattle to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$303 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$287 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$228 | Average$499 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$516 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$504 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$335 | Average$482 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$696 | Average$777 | FlexibilityNo cancel fee | On-time75% |