$147+ Cheap flights from Buffalo to Seattle (BUF - SEA)
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Seattle with Cheapflights
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Cheapest flights from Buffalo to SeattleExplore the most affordable flight options available from Buffalo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
Explore the most affordable flight options available from Buffalo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
This JetBlue deal was found by Cheapflights users on 7/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Wed 9/2311:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/22![JetBlue logo]()
$298
This JetBlue deal was found by Cheapflights users on 7/23. 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 9/292:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Wed 9/3011:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/23![JetBlue logo]()
$303
This JetBlue deal was found by Cheapflights users on 7/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Wed 9/1611:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/24![JetBlue logo]()
$313
This Expedia deal was found by Cheapflights users on 7/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:10 pm
BUF
- SEA
1 stop11h 32m
JetBlue
Tue 9/229:40 pm
SEA
- BUF
1 stop7h 44m
JetBlue
Deal found 7/22![JetBlue logo]()
$324
This JetBlue deal was found by Cheapflights users on 7/23. 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.
Thu 9/2412:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Wed 9/3011:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/23![JetBlue logo]()
$329
This JetBlue deal was found by Cheapflights users on 7/26. 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.
Thu 9/1012:06 pm
BUF
- SEA
1 stop11h 38m
JetBlue
Tue 9/1511:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/26![JetBlue logo]()
$338
This JetBlue deal was found by Cheapflights users on 7/26. 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.
Thu 9/2412:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Tue 9/2911:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/26![JetBlue logo]()
$339
This JetBlue deal was found by Cheapflights users on 7/23. 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.
Fri 9/252:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Tue 10/611:41 pm
SEA
- BUF
1 stop10h 48m
JetBlue
Deal found 7/23![JetBlue logo]()
$348
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:10 pm
BUF
- SEA
1 stop10h 28m
JetBlue
Tue 10/1311:55 pm
SEA
- BUF
1 stop8h 19m
JetBlue
Deal found 7/23![JetBlue logo]()
$349
This JetBlue deal was found by Cheapflights users on 7/26. 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 9/2212:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Sun 9/2711:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/26![JetBlue logo]()
$353
This JetBlue deal was found by Cheapflights users on 7/27. 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 9/192:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Mon 9/2111:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/27![JetBlue logo]()
$358
Best flights from Buffalo to SeattleDiscover carefully curated flight deals from Buffalo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated flight deals from Buffalo to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This JetBlue deal was found by Cheapflights users on 7/26. 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.
Thu 9/1012:06 pm
BUF
- SEA
1 stop11h 38m
JetBlue
Tue 9/1511:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/26![JetBlue logo]()
$338
This Southwest deal was found by Cheapflights users on 7/26. 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 9/112:00 pm
BUF
- SEA
2 stops11h 25m
Southwest
Sat 9/1211:05 pm
SEA
- BUF
1 stop8h 45m
Southwest
Deal found 7/26![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:53 pm
BUF
- SEA
2 stops10h 50m
United Airlines
Mon 9/711:00 pm
SEA
- BUF
1 stop7h 28m
United Airlines
Deal found 7/22![United Airlines logo]()
$448
This JetBlue deal was found by Cheapflights users on 7/26. 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 9/92:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Wed 9/1611:42 pm
SEA
- BUF
1 stop10h 47m
JetBlue
Deal found 7/26![JetBlue logo]()
$358
This Southwest deal was found by Cheapflights users on 7/25. 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 8/2612:00 pm
BUF
- SEA
2 stops11h 25m
Southwest
Mon 8/3110:30 pm
SEA
- BUF
1 stop11h 00m
Southwest
Deal found 7/25![Southwest logo]()
$378
This Southwest deal was found by Cheapflights users on 7/23. 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.
Wed 8/199:45 am
BUF
- SEA
2 stops11h 25m
Southwest
Thu 8/2711:05 pm
SEA
- BUF
1 stop8h 40m
Southwest
Deal found 7/23![Southwest logo]()
$390
This Southwest deal was found by Cheapflights users on 7/24. 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.
Sat 9/55:15 pm
BUF
- SEA
1 stop7h 15m
Southwest
Sun 9/1311:05 pm
SEA
- BUF
2 stops10h 40m
Southwest
Deal found 7/24![Southwest logo]()
$432
This Southwest deal was found by Cheapflights users on 7/23. 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.
Sat 10/312:30 pm
BUF
- SEA
2 stops12h 05m
Southwest
Sun 10/118:20 pm
SEA
- BUF
2 stops11h 05m
Southwest
Deal found 7/23![Southwest logo]()
$437
This Southwest deal was found by Cheapflights users on 7/26. 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 9/93:00 pm
BUF
- SEA
2 stops11h 10m
Southwest
Wed 9/1610:30 pm
SEA
- BUF
1 stop9h 35m
Southwest
Deal found 7/26![Southwest logo]()
$449
This Southwest deal was found by Cheapflights users on 7/26. 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 10/12:50 pm
BUF
- SEA
2 stops12h 45m
Southwest
Sat 10/3111:45 am
SEA
- BUF
2 stops18h 40m
Southwest
Deal found 7/26![Southwest logo]()
$460
This Southwest deal was found by Cheapflights users on 7/23. 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.
Fri 10/92:50 pm
BUF
- SEA
2 stops12h 45m
Southwest
Mon 10/126:50 pm
SEA
- BUF
2 stops10h 35m
Southwest
Deal found 7/23![Southwest logo]()
$472
Last-minute flights from Buffalo to SeattleDiscover last-minute flight deals from Buffalo to Seattle. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Seattle. Data last updated July 27, 2026 and is based on user searches.
This Kissandfly.com deal was found by Cheapflights users on 7/25. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:57 pm
BUF
- SEA
2 stops40h 22m
Frontier
Sat 8/222:37 pm
SEA
- BUF
2 stops16h 52m
Frontier
Deal found 7/25![Frontier logo]()
$412
This Southwest deal was found by Cheapflights users on 7/25. 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 8/186:25 pm
BUF
- SEA
1 stop8h 10m
Southwest
Tue 8/2511:05 pm
SEA
- BUF
2 stops10h 25m
Southwest
Deal found 7/25![Southwest logo]()
$413
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:13 pm
BUF
- SEA
1 stop10h 44m
Delta
Mon 8/2411:59 pm
SEA
- BUF
1 stop8h 09m
Delta
Deal found 7/24![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 7/23. 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.
Wed 8/199:45 am
BUF
- SEA
2 stops11h 25m
Southwest
Thu 8/2711:05 pm
SEA
- BUF
1 stop8h 40m
Southwest
Deal found 7/23![Southwest logo]()
$390
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:09 pm
BUF
- SEA
1 stop8h 50m
American Airlines
Mon 8/2411:56 pm
SEA
- BUF
1 stop6h 43m
American Airlines
Deal found 7/22![American Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Thu 8/204:50 pm
BUF
- SEA
1 stop11h 00m
American Airlines
Thu 8/275:10 am
SEA
- BUF
1 stop9h 52m
American Airlines
Deal found 7/23![American Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 7/26. 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 8/204:50 pm
BUF
- SEA
1 stop11h 00m
American Airlines
Mon 8/315:10 am
SEA
- BUF
1 stop7h 49m
American Airlines
Deal found 7/26![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Thu 8/204:50 pm
BUF
- SEA
1 stop11h 00m
American Airlines
Mon 8/2411:56 pm
SEA
- BUF
1 stop6h 43m
American Airlines
Deal found 7/23![American Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:58 pm
BUF
- SEA
1 stop7h 45m
United Airlines
Wed 9/911:00 pm
SEA
- BUF
1 stop7h 28m
United Airlines
Deal found 7/24![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 7/25. 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 8/2612:00 pm
BUF
- SEA
2 stops11h 25m
Southwest
Mon 8/3110:30 pm
SEA
- BUF
1 stop11h 00m
Southwest
Deal found 7/25![Southwest logo]()
$378
This Southwest deal was found by Cheapflights users on 7/24. 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 8/319:40 am
BUF
- SEA
2 stops10h 55m
Southwest
Mon 8/3110:30 pm
SEA
- BUF
1 stop12h 50m
Southwest
Deal found 7/24![Southwest logo]()
$383
One-way flights from Buffalo to SeattleSearch for one-way flight options from Buffalo to Seattle. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way flight options from Buffalo to Seattle. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This JetBlue deal was found by Cheapflights users on 7/23. 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.
Wed 9/2312:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Deal found 7/23![JetBlue logo]()
$147
This Justfly.com deal was found by Cheapflights users on 7/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Deal found 7/26![JetBlue logo]()
$151
This JetBlue deal was found by Cheapflights users on 7/26. 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 9/92:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Deal found 7/26![JetBlue logo]()
$157
This FlightHub deal was found by Cheapflights users on 7/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:23 pm
BUF
- SEA
1 stop11h 14m
JetBlue
Deal found 7/26![JetBlue logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:36 am
BUF
- SEA
2 stops24h 43m
Frontier
Deal found 7/22![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 8/3111:36 am
BUF
- SEA
2 stops48h 43m
Frontier
Deal found 7/23![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 9/291:16 pm
BUF
- SEA
2 stops38h 11m
Frontier
Deal found 7/23![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:54 pm
BUF
- SEA
2 stops42h 06m
Frontier
Deal found 7/22![Frontier logo]()
$177
This JetBlue deal was found by Cheapflights users on 7/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:32 pm
BUF
- SEA
1 stop8h 36m
JetBlue
Deal found 7/22![JetBlue logo]()
$178
This JetBlue deal was found by Cheapflights users on 7/27. 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.
Thu 10/112:19 pm
BUF
- SEA
1 stop11h 25m
JetBlue
Deal found 7/27![JetBlue logo]()
$182
This American Airlines deal was found by Cheapflights users on 7/26. 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 8/272:51 pm
BUF
- SEA
1 stop11h 05m
American Airlines
Deal found 7/26![American Airlines logo]()
$184
Find flight deals from Buffalo to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Seattle (SEA). 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 July 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $298 (JetBlue) |
One-way from | $147 (JetBlue) |
Popular in | April |
Cheapest in | February |
Average price | $559 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Seattle 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 July 27, 2026.
Use the filters below to find and compare flights from Buffalo to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Thu 9/10
12:06 pm-8:44 pm
1 stop11h 38m
Seattle/Tacoma Intl
Tue 9/15
11:42 pm-1:29 pm
1 stop10h 47m
$338
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 9/9
2:23 pm-10:37 pm
1 stop11h 14m
Seattle/Tacoma Intl
Wed 9/16
11:42 pm-1:29 pm
1 stop10h 47m
$358
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Tue 9/1
12:00 pm-8:25 pm
2 stops11h 25m
Seattle/Tacoma Intl
Sat 9/12
11:05 pm-10:50 am
1 stop8h 45m
$377
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 8/26
12:00 pm-8:25 pm
2 stops11h 25m
Seattle/Tacoma Intl
Mon 8/31
10:30 pm-12:30 pm
1 stop11h 00m
$378
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 8/19
9:45 am-6:10 pm
2 stops11h 25m
Seattle/Tacoma Intl
Thu 8/27
11:05 pm-10:45 am
1 stop8h 40m
$390
Quickest round-trip
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Sat 9/5
5:15 pm-9:30 pm
1 stop7h 15m
Seattle/Tacoma Intl
Sun 9/13
11:05 pm-12:45 pm
2 stops10h 40m
$432
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Sat 10/3
12:30 pm-9:35 pm
2 stops12h 05m
Seattle/Tacoma Intl
Sun 10/11
8:20 pm-10:25 am
2 stops11h 05m
$437
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Sat 8/29
2:53 pm-10:43 pm
2 stops10h 50m
Seattle/Tacoma Intl
Mon 9/7
11:00 pm-9:28 am
1 stop7h 28m
$448
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 9/9
3:00 pm-11:10 pm
2 stops11h 10m
Seattle/Tacoma Intl
Wed 9/16
10:30 pm-11:05 am
1 stop9h 35m
$449
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Thu 10/1
2:50 pm-12:35 am
2 stops12h 45m
Seattle/Tacoma Intl
Sat 10/31
11:45 am-9:25 am
2 stops18h 40m
$460
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Seattle
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 Buffalo to Seattle in July.
| 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 Buffalo-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Seattle 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 Buffalo-Seattle 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 Buffalo to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Buffalo with our price prediction graph.
BUF-SEA
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 Buffalo to Seattle
How far ahead should I book a flight from Buffalo to Seattle?
The best time to book flights from Buffalo to Seattle is 47 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 Buffalo to Seattle?
Currently, February is the cheapest month in which you can book a flight from Buffalo to Seattle (average of $384). Flying from Buffalo to Seattle in April is currently the most expensive (average of $587). 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 Buffalo to Seattle?
Airfare is below average for this route at the moment.
Buffalo to Seattle flights typically cost between $441 and $686 in September.The cheapest round-trip price found within the last 5 days was $298 on JetBlue (Sep 22-Sep 23).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 27, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Seattle. 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 Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah
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Buffalo and Seattle flights
Browse other Buffalo and Seattle flight options. Last updated on July 27, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on July 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 27, 2026.
Top 5 airlines flying from Buffalo to Seattle
Discover the top 5 airlines that operate flights from Buffalo to Seattle. 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 July 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$352 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$238 | Average$534 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$564 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$346 | Average$499 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$359 | Average$513 | FlexibilityNo cancel fee | On-time71% |