$142+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUF
Jun 8 — Jun 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Buffalo with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Buffalo
Cheapest
Best
Last-minute
One-way
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 May 9, 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 May 9, 2026.
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/210:27 am
SEA
- BUF
1 stop8h 30m
American Airlines
Tue 6/92:47 pm
BUF
- SEA
1 stop11h 11m
American Airlines
Deal found 5/4![American Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 5/4. 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.
Wed 8/2611:05 pm
SEA
- BUF
2 stops10h 40m
Southwest
Wed 9/23:55 pm
BUF
- SEA
1 stop10h 10m
Southwest
Deal found 5/4![Southwest logo]()
$406
This Delta deal was found by Cheapflights users on 5/6. 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 7/710:40 pm
SEA
- BUF
1 stop8h 01m
Delta
Tue 7/147:36 pm
BUF
- SEA
1 stop7h 22m
Delta
Deal found 5/6![Delta logo]()
$411
This Southwest deal was found by Cheapflights users on 5/4. 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 6/211:40 am
SEA
- BUF
1 stop8h 10m
Southwest
Tue 6/912:40 pm
BUF
- SEA
2 stops13h 30m
Southwest
Deal found 5/4![Southwest logo]()
$412
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Thu 6/412:46 pm
SEA
- BUF
1 stop8h 08m
American Airlines
Wed 6/104:57 pm
BUF
- SEA
1 stop10h 44m
American Airlines
Deal found 5/8![American Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 5/8. 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 7/710:40 pm
SEA
- BUF
1 stop8h 01m
Delta
Wed 7/157:36 pm
BUF
- SEA
1 stop7h 22m
Delta
Deal found 5/8![Delta logo]()
$421
This JetBlue deal was found by Cheapflights users on 5/5. 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.
Wed 5/2711:52 pm
SEA
- BUF
1 stop11h 00m
JetBlue
Tue 6/22:41 pm
BUF
- SEA
1 stop9h 15m
JetBlue
Deal found 5/5![JetBlue logo]()
$423
This Delta deal was found by Cheapflights users on 5/8. 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 10/76:00 am
SEA
- BUF
1 stop6h 12m
Delta
Sat 10/103:50 pm
BUF
- SEA
1 stop9h 15m
Delta
Deal found 5/8![Delta logo]()
$426
This American Airlines deal was found by Cheapflights users on 5/8. 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 7/711:56 pm
SEA
- BUF
1 stop6h 41m
American Airlines
Wed 7/154:46 pm
BUF
- SEA
1 stop8h 40m
American Airlines
Deal found 5/8![American Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 5/5. 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.
Wed 5/276:00 am
SEA
- BUF
1 stop6h 20m
Southwest
Thu 6/47:55 pm
BUF
- SEA
1 stop7h 35m
Southwest
Deal found 5/5![Southwest logo]()
$434
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 May 9, 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 May 9, 2026.
This Delta deal was found by Cheapflights users on 5/6. 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 7/710:40 pm
SEA
- BUF
1 stop8h 01m
Delta
Tue 7/147:36 pm
BUF
- SEA
1 stop7h 22m
Delta
Deal found 5/6![Delta logo]()
$411
This Southwest deal was found by Cheapflights users on 5/6. 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 7/77:30 pm
SEA
- BUF
2 stops9h 30m
Southwest
Tue 7/147:10 pm
BUF
- SEA
1 stop8h 10m
Southwest
Deal found 5/6![Southwest logo]()
$449
This United Airlines deal was found by Cheapflights users on 5/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:00 am
SEA
- BUF
2 stops15h 18m
United Airlines
Wed 9/237:00 am
BUF
- SEA
2 stops13h 45m
United Airlines
Deal found 5/4![United Airlines logo]()
$511
This Southwest deal was found by Cheapflights users on 5/8. 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 5/295:15 am
SEA
- BUF
1 stop7h 10m
Southwest
Sat 6/66:45 pm
BUF
- SEA
1 stop7h 45m
Southwest
Deal found 5/8![Southwest logo]()
$449
This Southwest deal was found by Cheapflights users on 5/6. 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 6/57:20 pm
SEA
- BUF
2 stops9h 30m
Southwest
Tue 6/912:40 pm
BUF
- SEA
2 stops13h 30m
Southwest
Deal found 5/6![Southwest logo]()
$460
This Southwest deal was found by Cheapflights users on 5/6. 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 6/167:30 pm
SEA
- BUF
2 stops9h 30m
Southwest
Wed 6/249:00 am
BUF
- SEA
2 stops15h 45m
Southwest
Deal found 5/6![Southwest logo]()
$460
This Southwest deal was found by Cheapflights users on 5/6. 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 6/411:05 pm
SEA
- BUF
2 stops10h 00m
Southwest
Tue 6/912:40 pm
BUF
- SEA
2 stops13h 30m
Southwest
Deal found 5/6![Southwest logo]()
$461
This Southwest deal was found by Cheapflights users on 5/8. 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 8/711:00 pm
SEA
- BUF
2 stops10h 05m
Southwest
Mon 8/107:10 pm
BUF
- SEA
1 stop7h 20m
Southwest
Deal found 5/8![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 5/4. 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 6/267:20 pm
SEA
- BUF
2 stops9h 30m
Southwest
Sat 6/274:30 pm
BUF
- SEA
2 stops10h 40m
Southwest
Deal found 5/4![Southwest logo]()
$487
This Southwest deal was found by Cheapflights users on 5/8. 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 9/1811:00 pm
SEA
- BUF
2 stops10h 05m
Southwest
Sun 9/206:20 am
BUF
- SEA
2 stops10h 20m
Southwest
Deal found 5/8![Southwest logo]()
$487
This Southwest deal was found by Cheapflights users on 5/7. 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 6/1210:45 pm
SEA
- BUF
2 stops10h 10m
Southwest
Sun 6/147:45 pm
BUF
- SEA
1 stop7h 20m
Southwest
Deal found 5/7![Southwest logo]()
$499
This Southwest deal was found by Cheapflights users on 5/5. 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 6/167:30 pm
SEA
- BUF
2 stops9h 30m
Southwest
Tue 6/304:25 pm
BUF
- SEA
2 stops10h 55m
Southwest
Deal found 5/5![Southwest logo]()
$517
Last-minute flights from Seattle to BuffaloDiscover last-minute flight deals from Seattle to Buffalo. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Buffalo. Data last updated May 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/5. 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 5/2610:35 pm
SEA
- BUF
1 stop8h 09m
Delta
Wed 6/33:53 pm
BUF
- SEA
1 stop9h 52m
Delta
Deal found 5/5![Delta logo]()
$411
This JetBlue deal was found by Cheapflights users on 5/5. 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 5/2611:52 pm
SEA
- BUF
1 stop10h 50m
JetBlue
Tue 6/22:41 pm
BUF
- SEA
1 stop9h 15m
JetBlue
Deal found 5/5![JetBlue logo]()
$438
This JetBlue deal was found by Cheapflights users on 5/5. 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.
Wed 5/2711:52 pm
SEA
- BUF
1 stop11h 00m
JetBlue
Tue 6/22:41 pm
BUF
- SEA
1 stop9h 15m
JetBlue
Deal found 5/5![JetBlue logo]()
$423
This Southwest deal was found by Cheapflights users on 5/5. 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.
Wed 5/276:00 am
SEA
- BUF
1 stop6h 20m
Southwest
Thu 6/47:55 pm
BUF
- SEA
1 stop7h 35m
Southwest
Deal found 5/5![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 5/4. 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.
Thu 5/2811:30 am
SEA
- BUF
1 stop9h 29m
Delta
Mon 6/16:25 am
BUF
- SEA
1 stop7h 40m
Delta
Deal found 5/4![Delta logo]()
$421
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/210:27 am
SEA
- BUF
1 stop8h 30m
American Airlines
Tue 6/92:47 pm
BUF
- SEA
1 stop11h 11m
American Airlines
Deal found 5/4![American Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 5/4. 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 6/211:40 am
SEA
- BUF
1 stop8h 10m
Southwest
Tue 6/912:40 pm
BUF
- SEA
2 stops13h 30m
Southwest
Deal found 5/4![Southwest logo]()
$412
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Thu 6/412:46 pm
SEA
- BUF
1 stop8h 08m
American Airlines
Wed 6/104:57 pm
BUF
- SEA
1 stop10h 44m
American Airlines
Deal found 5/8![American Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 5/6. 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 6/411:05 pm
SEA
- BUF
1 stop8h 20m
Southwest
Sat 6/64:50 pm
BUF
- SEA
2 stops11h 20m
Southwest
Deal found 5/6![Southwest logo]()
$426
This American Airlines deal was found by Cheapflights users on 5/9. 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.
Thu 6/412:46 pm
SEA
- BUF
1 stop8h 08m
American Airlines
Tue 6/94:57 pm
BUF
- SEA
1 stop10h 44m
American Airlines
Deal found 5/9![American Airlines logo]()
$437
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 May 9, 2026.
Search for one-way flight options from Seattle to Buffalo. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/97:41 pm
SEA
- BUF
2 stops35h 59m
Frontier
Deal found 5/8![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/247:41 pm
SEA
- BUF
2 stops39h 14m
Frontier
Deal found 5/4![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/277:50 pm
SEA
- BUF
2 stops39h 04m
Frontier
Deal found 5/5![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 8/158:12 pm
SEA
- BUF
2 stops11h 27m
Frontier
Deal found 5/8![Frontier logo]()
$165
This Trip.com deal was found by Cheapflights users on 5/8. 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.
Sun 8/2311:03 am
SEA
- BUF
2 stops23h 52m
Frontier
Deal found 5/8![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/283:19 pm
SEA
- BUF
2 stops19h 35m
Frontier
Deal found 5/5![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Mon 6/83:19 pm
SEA
- BUF
2 stops16h 51m
Frontier
Deal found 5/6![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 7/318:12 pm
SEA
- BUF
2 stops35h 27m
Frontier
Deal found 5/8![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/118:12 pm
SEA
- BUF
2 stops36h 22m
Frontier
Deal found 5/8![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Fri 5/2911:21 am
SEA
- BUF
2 stops21h 07m
Frontier
Deal found 5/5![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/258:12 pm
SEA
- BUF
2 stops14h 43m
Frontier
Deal found 5/4![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 6/128:12 pm
SEA
- BUF
2 stops12h 22m
Frontier
Deal found 5/8![Frontier logo]()
$190
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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $391 (American Airlines) |
One-way from | $142 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $481 |
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 May 9, 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
Tue 7/7
10:40 pm-9:41 am
1 stop8h 01m
Buffalo
Tue 7/14
7:36 pm-11:58 pm
1 stop7h 22m
$411
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Tue 7/7
7:30 pm-8:00 am
2 stops9h 30m
Buffalo
Tue 7/14
7:10 pm-12:20 am
1 stop8h 10m
$449
Quickest round-trip
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 5/29
5:15 am-3:25 pm
1 stop7h 10m
Buffalo
Sat 6/6
6:45 pm-11:30 pm
1 stop7h 45m
$449
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 6/5
7:20 pm-7:50 am
2 stops9h 30m
Buffalo
Tue 6/9
12:40 pm-11:10 pm
2 stops13h 30m
$460
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Tue 6/16
7:30 pm-8:00 am
2 stops9h 30m
Buffalo
Wed 6/24
9:00 am-9:45 pm
2 stops15h 45m
$460
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Thu 6/4
11:05 pm-12:05 pm
2 stops10h 00m
Buffalo
Tue 6/9
12:40 pm-11:10 pm
2 stops13h 30m
$461
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 8/7
11:00 pm-12:05 pm
2 stops10h 05m
Buffalo
Mon 8/10
7:10 pm-11:30 pm
1 stop7h 20m
$482
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 6/26
7:20 pm-7:50 am
2 stops9h 30m
Buffalo
Sat 6/27
4:30 pm-12:10 am
2 stops10h 40m
$487
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 9/18
11:00 pm-12:05 pm
2 stops10h 05m
Buffalo
Sun 9/20
6:20 am-1:40 pm
2 stops10h 20m
$487
SeattleBuffalo
SEA - BUF
SEABUF
Seattle/Tacoma Intl
Fri 6/12
10:45 pm-11:55 am
2 stops10h 10m
Buffalo
Sun 6/14
7:45 pm-12:05 am
1 stop7h 20m
$499
Showing 1-10 of 22 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 May.
| 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, March is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $373). Flying from Seattle to Buffalo in December is currently the most expensive (average of $650). 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 May 9, 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.
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
West Seneca
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buffalo flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
Alternative routes for Seattle to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
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 May 9, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Buffalo by cabin class
Find flights from Seattle to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Buffalo flights
Browse other Seattle and Buffalo flight options. Last updated on May 9, 2026.
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 May 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Seattle to Buffalo
Discover the top 6 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 May 9, 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$218 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$512 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$286 | Average$479 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$335 | Average$457 | FlexibilityNo cancel fee | On-time63% |