$156+ Cheap flights from Seattle to Buffalo (SEA - BUF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUF
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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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
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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 September 22, 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 September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1411:13 pm -
1 stop7h 16m
Sat 10/2410:46 am -
1 stop8h 06m
Deal found 9/17![United Airlines logo]()
$311
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/1010:48 pm -
1 stop8h 30m
Fri 10/237:00 am -
1 stop10h 52m
Deal found 9/17![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1411:13 pm -
1 stop7h 16m
Wed 10/217:00 am -
2 stops10h 17m
Deal found 9/17![United Airlines logo]()
$356
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Tue 10/2011:59 pm -
1 stop7h 54m
Tue 10/275:49 pm -
1 stop9h 47m
Deal found 9/20![American Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/910:48 pm -
1 stop10h 58m
Tue 10/135:50 pm -
1 stop9h 46m
Deal found 9/17![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:13 pm -
1 stop7h 16m
Wed 10/286:30 am -
2 stops10h 24m
Deal found 9/21![United Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/1011:17 am -
1 stop9h 42m
Sat 10/247:00 am -
1 stop10h 52m
Deal found 9/19![American Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:45 pm -
2 stops11h 40m
Wed 10/282:00 pm -
2 stops11h 40m
Deal found 9/21![Southwest logo]()
$367
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/238:24 am -
1 stop7h 45m
Mon 10/265:17 pm -
1 stop8h 42m
Deal found 9/17![American Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 9/20. 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.
Mon 10/196:00 am -
1 stop6h 13m
Fri 10/233:53 pm -
1 stop9h 12m
Deal found 9/20![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 9/17. 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 10/137:45 pm -
2 stops11h 40m
Tue 10/206:20 pm -
1 stop8h 35m
Deal found 9/17![Southwest logo]()
$373
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 September 22, 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 September 22, 2026.
This Delta deal was found by Cheapflights users on 9/17. 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 10/1611:10 pm -
1 stop9h 25m
Sat 10/173:53 pm -
1 stop10h 11m
Deal found 9/17![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/3110:50 am -
1 stop7h 01m
Sat 11/710:51 am -
2 stops11h 12m
Deal found 9/19![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 9/19. 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 10/1612:10 am -
1 stop7h 20m
Mon 10/192:50 pm -
2 stops12h 50m
Deal found 9/19![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 9/19. 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.
Sat 10/316:00 am -
1 stop6h 13m
Sat 11/73:53 pm -
1 stop10h 11m
Deal found 9/19![Delta logo]()
$357
This Delta deal was found by Cheapflights users on 9/20. 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.
Mon 10/196:00 am -
1 stop6h 13m
Fri 10/233:53 pm -
1 stop9h 12m
Deal found 9/20![Delta logo]()
$372
This Southwest deal was found by Cheapflights users on 9/20. 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.
Sun 1/246:00 am -
2 stops11h 00m
Sat 1/308:15 am -
2 stops11h 00m
Deal found 9/20![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
2 stops9h 19m
Sun 10/256:30 am -
1 stop8h 49m
Deal found 9/21![United Airlines logo]()
$448
This Southwest deal was found by Cheapflights users on 9/20. 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.
Sat 10/2412:10 am -
1 stop7h 05m
Fri 10/3012:35 pm -
2 stops11h 25m
Deal found 9/20![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/1511:13 pm -
1 stop7h 16m
Sat 10/175:45 pm -
1 stop8h 11m
Deal found 9/17![United Airlines logo]()
$464
This Southwest deal was found by Cheapflights users on 9/17. 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 10/2212:10 am -
2 stops11h 00m
Mon 10/262:50 pm -
2 stops12h 50m
Deal found 9/17![Southwest logo]()
$447
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/211:14 pm -
1 stop7h 21m
Tue 10/63:52 pm -
1 stop9h 03m
Deal found 9/17![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/3111:45 am -
2 stops18h 40m
Mon 11/23:05 pm -
2 stops12h 35m
Deal found 9/17![Southwest logo]()
$453
Last-minute flights from Seattle to BuffaloDiscover last-minute flight deals from Seattle to Buffalo. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Buffalo. Data last updated September 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/910:48 pm -
1 stop10h 58m
Tue 10/135:50 pm -
1 stop9h 46m
Deal found 9/17![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/1010:48 pm -
1 stop8h 30m
Fri 10/237:00 am -
1 stop10h 52m
Deal found 9/17![American Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Sat 10/1011:17 am -
1 stop9h 42m
Sat 10/247:00 am -
1 stop10h 52m
Deal found 9/19![American Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 9/17. 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 10/137:45 pm -
2 stops11h 40m
Tue 10/206:20 pm -
1 stop8h 35m
Deal found 9/17![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1411:13 pm -
1 stop7h 16m
Sat 10/175:45 pm -
1 stop8h 11m
Deal found 9/17![United Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1411:13 pm -
1 stop7h 16m
Sat 10/2410:46 am -
2 stops9h 51m
Deal found 9/17![United Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/1411:13 pm -
1 stop7h 16m
Wed 10/217:00 am -
2 stops10h 17m
Deal found 9/17![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 9/20. 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.
Mon 10/196:00 am -
1 stop6h 13m
Fri 10/233:53 pm -
1 stop9h 12m
Deal found 9/20![Delta logo]()
$372
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Tue 10/2011:59 pm -
1 stop7h 54m
Tue 10/275:49 pm -
1 stop9h 47m
Deal found 9/20![American Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:13 pm -
1 stop7h 16m
Wed 10/286:30 am -
2 stops10h 24m
Deal found 9/21![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:45 pm -
2 stops11h 40m
Wed 10/282:00 pm -
2 stops11h 40m
Deal found 9/21![Southwest logo]()
$367
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/238:24 am -
1 stop7h 45m
Mon 10/265:17 pm -
1 stop8h 42m
Deal found 9/17![American Airlines logo]()
$371
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 September 22, 2026.
Search for one-way flight options from Seattle to Buffalo. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This Delta deal was found by Cheapflights users on 9/17. 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.
Sat 10/1711:10 pm -
1 stop6h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/318:09 pm -
2 stops38h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$163
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 10/2610:59 pm -
1 stop8h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Delta logo]()
$179
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:35 pm -
2 stops11h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$184
This Delta deal was found by Cheapflights users on 9/20. 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 11/611:50 am -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$194
This Southwest deal was found by Cheapflights users on 9/19. 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 10/1511:35 am -
2 stops9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Southwest logo]()
$199
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/1611:03 am -
1 stop8h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Mon 11/28:09 pm -
2 stops38h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$201
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Thu 10/1511:13 pm -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$211
This Southwest deal was found by Cheapflights users on 9/19. 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 12/176:45 am -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Southwest logo]()
$219
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/166:05 pm -
2 stops12h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Sun 11/18:09 pm -
2 stops13h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$239
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (United Airlines) |
One-way from | $156 (Delta) |
Popular in | December |
Cheapest in | March |
Average price | $476 |
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 7,457,451 searches. Data last updated September 22, 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
Quickest round-trip
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Sat 10/17
11:10 pm-8:26 am
1 stop6h 16m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$156
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Tue 11/3
11:15 pm-10:08 am
1 stop7h 53m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Sat 12/12
1:05 pm-10:25 pm
1 stop6h 20m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Mon 12/14
11:15 pm-8:34 am
1 stop6h 19m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Mon 10/19
11:13 pm-9:29 am
1 stop7h 16m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Tue 10/20
11:13 pm-9:29 am
1 stop7h 16m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Mon 11/2
11:10 pm-11:35 am
1 stop9h 25m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Thu 11/5
11:25 am-10:38 pm
1 stop8h 13m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Sat 10/17
7:25 pm-9:29 am
2 stops11h 04m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
SeattleBuffalo
SEA Seattle/Tacoma Intl - BUF Buffalo
SEABUF
Seattle/Tacoma Intl
Mon 12/14
7:30 pm-9:44 am
2 stops11h 14m
Buffalo
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
Showing 1-10 of 23 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 September.
| 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 80 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 $387). 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?
Airfare is below average for this route at the moment.
Seattle to Buffalo flights typically cost between $374 and $583 in October.The cheapest round-trip price found within the last 5 days was $311 on United Airlines (Oct 14-Oct 17).
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 September 22, 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.
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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
Williamsville
Orchard Park
Eden
Bowmansville
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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 September 22, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
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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 September 22, 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 September 22, 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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$411 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$274 | Average$509 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$302 | Average$527 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$352 | Average$489 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$389 | Average$516 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$648 | Average$777 | FlexibilityNo cancel fee | On-time75% |