$137+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Seattle 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 Buffalo to Seattle
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Best
Last-minute
One-way
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 August 6, 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 August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/1. 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 -
1 stop7h 15m
Fri 9/115:15 am -
1 stop7h 00m
Deal found 8/1![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:53 pm -
2 stops10h 50m
Fri 9/1111:00 pm -
1 stop7h 08m
Deal found 8/5![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 8/3. 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 10/3012:15 pm -
1 stop9h 20m
Tue 11/37:15 am -
1 stop8h 41m
Deal found 8/3![Delta logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/105:18 pm -
1 stop8h 39m
Tue 9/1510:45 pm -
1 stop8h 33m
Deal found 8/3![American Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 8/4. 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 8/253:00 pm -
2 stops11h 05m
Wed 9/910:30 pm -
1 stop9h 40m
Deal found 8/4![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 8/3. 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 8/263:54 pm -
1 stop9h 11m
Wed 9/25:30 am -
1 stop6h 44m
Deal found 8/3![Delta logo]()
$391
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 9/216:56 pm -
1 stop8h 15m
Thu 9/246:15 am -
1 stop8h 03m
Deal found 8/3![American Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:09 pm -
1 stop8h 50m
Tue 9/85:50 am -
1 stop8h 10m
Deal found 8/5![American Airlines logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/157:00 am -
2 stops10h 24m
Sat 9/1911:04 pm -
1 stop7h 44m
Deal found 8/4![United Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/96:56 pm -
1 stop8h 26m
Thu 9/1710:17 am -
1 stop9h 42m
Deal found 8/3![American Airlines logo]()
$397
This JetBlue deal was found by Cheapflights users on 8/1. 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 -
1 stop11h 25m
Sun 10/411:42 pm -
1 stop10h 47m
Deal found 8/1![JetBlue logo]()
$398
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 August 6, 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 August 6, 2026.
This Delta deal was found by Cheapflights users on 8/4. 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.
Wed 9/97:25 pm -
1 stop7h 30m
Thu 9/1711:45 am -
1 stop9h 08m
Deal found 8/4![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/1. 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 10/316:00 am -
2 stops13h 27m
Sat 10/3110:56 pm -
1 stop8h 46m
Deal found 8/1![United Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 8/5. 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.
Thu 9/177:10 pm -
1 stop7h 45m
Mon 9/2111:05 pm -
2 stops10h 25m
Deal found 8/5![Southwest logo]()
$396
This Southwest deal was found by Cheapflights users on 8/5. 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 9/13:55 pm -
1 stop10h 10m
Tue 9/811:05 pm -
1 stop9h 15m
Deal found 8/5![Southwest logo]()
$415
This Delta deal was found by Cheapflights users on 8/5. 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.
Mon 9/76:27 am -
1 stop7h 04m
Sun 9/133:00 pm -
1 stop5h 53m
Deal found 8/5![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 8/1. 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 -
2 stops11h 10m
Fri 9/1811:05 pm -
2 stops10h 00m
Deal found 8/1![Southwest logo]()
$419
This Delta deal was found by Cheapflights users on 8/3. 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 9/296:20 am -
1 stop7h 06m
Sun 10/410:40 pm -
1 stop8h 46m
Deal found 8/3![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Sat 9/510:30 am -
1 stop8h 40m
Sat 9/125:20 pm -
2 stops12h 56m
Deal found 8/4![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 8/2. 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 8/283:55 pm -
2 stops10h 00m
Mon 8/3111:00 pm -
1 stop13h 25m
Deal found 8/2![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 8/3. 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 -
1 stop7h 15m
Sat 9/1211:05 pm -
2 stops10h 10m
Deal found 8/3![Southwest logo]()
$432
Last-minute flights from Buffalo to SeattleDiscover last-minute flight deals from Buffalo to Seattle. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Seattle. Data last updated August 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/3. 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 8/247:52 pm -
1 stop7h 02m
Sat 9/55:30 am -
1 stop6h 44m
Deal found 8/3![Delta logo]()
$379
This Southwest deal was found by Cheapflights users on 8/4. 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 8/253:00 pm -
2 stops11h 05m
Wed 9/910:30 pm -
1 stop9h 40m
Deal found 8/4![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 8/3. 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 8/253:00 pm -
2 stops11h 05m
Wed 9/25:20 am -
2 stops9h 25m
Deal found 8/3![Southwest logo]()
$401
This Delta deal was found by Cheapflights users on 8/3. 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 8/263:54 pm -
1 stop9h 11m
Wed 9/25:30 am -
1 stop6h 44m
Deal found 8/3![Delta logo]()
$391
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:09 pm -
1 stop8h 50m
Tue 9/85:50 am -
1 stop8h 10m
Deal found 8/5![American Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 8/1. 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 -
1 stop7h 15m
Fri 9/115:15 am -
1 stop7h 00m
Deal found 8/1![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:53 pm -
2 stops10h 50m
Fri 9/1111:00 pm -
1 stop7h 08m
Deal found 8/5![United Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/96:56 pm -
1 stop8h 26m
Thu 9/1710:17 am -
1 stop9h 42m
Deal found 8/3![American Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/105:18 pm -
1 stop8h 39m
Tue 9/1510:45 pm -
1 stop8h 33m
Deal found 8/3![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/157:00 am -
2 stops10h 24m
Sat 9/1911:04 pm -
1 stop7h 44m
Deal found 8/4![United Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 9/216:56 pm -
1 stop8h 15m
Thu 9/246:15 am -
1 stop8h 03m
Deal found 8/3![American Airlines logo]()
$392
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 August 6, 2026.
Search for one-way flight options from Buffalo to Seattle. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/271:13 pm -
2 stops32h 13m
Deal found 8/3![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/281:13 pm -
2 stops32h 13m
Deal found 8/3![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Tue 8/259:29 pm -
2 stops47h 22m
Deal found 8/4![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/89:29 pm -
2 stops48h 07m
Deal found 8/1![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 11/11:13 pm -
2 stops47h 38m
Deal found 8/3![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/261:13 pm -
2 stops23h 38m
Deal found 8/3![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 9/211:40 pm -
2 stops28h 28m
Deal found 8/2![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/2911:36 am -
2 stops24h 43m
Deal found 8/1![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/291:13 pm -
2 stops47h 38m
Deal found 8/3![Frontier logo]()
$182
This Delta deal was found by Cheapflights users on 8/2. 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.
Sun 9/63:54 pm -
1 stop9h 11m
Deal found 8/2![Delta logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 8/279:29 pm -
2 stops40h 10m
Deal found 8/5![Frontier logo]()
$185
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $367 (Southwest) |
One-way from | $137 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $511 |
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 August 6, 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 Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Wed 9/9
7:25 pm-11:55 pm
1 stop7h 30m
Seattle/Tacoma Intl
Thu 9/17
11:45 am-11:53 pm
1 stop9h 08m
$384
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 10/31
6:00 am-4:27 pm
2 stops13h 27m
Seattle/Tacoma Intl
Sat 10/31
10:56 pm-10:42 am
1 stop8h 46m
$392
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Thu 9/17
7:10 pm-11:55 pm
1 stop7h 45m
Seattle/Tacoma Intl
Mon 9/21
11:05 pm-12:30 pm
2 stops10h 25m
$396
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 9/1
3:55 pm-11:05 pm
1 stop10h 10m
Seattle/Tacoma Intl
Tue 9/8
11:05 pm-11:20 am
1 stop9h 15m
$415
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Wed 9/9
3:00 pm-11:10 pm
2 stops11h 10m
Seattle/Tacoma Intl
Fri 9/18
11:05 pm-12:05 pm
2 stops10h 00m
$419
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Fri 8/28
3:55 pm-10:55 pm
2 stops10h 00m
Seattle/Tacoma Intl
Mon 8/31
11:00 pm-3:25 pm
1 stop13h 25m
$426
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 9/5
5:15 pm-9:30 pm
1 stop7h 15m
Seattle/Tacoma Intl
Sat 9/12
11:05 pm-12:15 pm
2 stops10h 10m
$432
Quickest round-trip
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Mon 9/7
6:27 am-10:31 am
1 stop7h 04m
Seattle/Tacoma Intl
Sun 9/13
3:00 pm-11:53 pm
1 stop5h 53m
$439
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 9/29
6:20 am-10:26 am
1 stop7h 06m
Seattle/Tacoma Intl
Sun 10/4
10:40 pm-10:26 am
1 stop8h 46m
$439
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 9/5
10:30 am-4:10 pm
1 stop8h 40m
Seattle/Tacoma Intl
Sat 9/12
5:20 pm-9:16 am
2 stops12h 56m
$487
Showing 1-10 of 18 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 August.
| 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 $676 in September.The cheapest round-trip price found within the last 5 days was $367 on Southwest (Sep 5-Sep 11).
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 August 6, 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.
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo
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Buffalo and Seattle flights
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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 August 6, 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$310 | Average$562 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$350 | Average$506 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$359 | Average$509 | FlexibilityNo cancel fee | On-time71% |