$129+ Cheap flights from Buffalo to Seattle (BUF - SEA)
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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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
Cheapest
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 September 9, 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 September 9, 2026.
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 am -
1 stop8h 45m
Wed 10/73:00 pm -
1 stop5h 59m
Deal found 9/9![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:48 pm -
2 stops10h 27m
Sat 10/1010:42 am -
1 stop7h 05m
Deal found 9/8![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:50 pm -
2 stops12h 50m
Sun 11/112:15 am -
2 stops10h 10m
Deal found 9/8![Southwest logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:18 pm -
1 stop8h 39m
Fri 10/210:45 pm -
1 stop8h 33m
Deal found 9/8![American Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:50 pm -
1 stop9h 46m
Fri 10/1610:48 pm -
1 stop10h 58m
Deal found 9/8![American Airlines logo]()
$430
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:20 am -
1 stop8h 55m
Sat 12/51:05 pm -
1 stop6h 20m
Deal found 9/7![Southwest logo]()
$432
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:56 pm -
1 stop10h 14m
Mon 10/1911:59 pm -
1 stop7h 54m
Deal found 9/8![American Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:55 pm -
1 stop9h 03m
Mon 12/710:55 pm -
1 stop8h 48m
Deal found 9/7![Delta logo]()
$448
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 September 9, 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 September 9, 2026.
This Southwest deal was found by Cheapflights users on 9/5. 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 11/102:00 pm -
2 stops11h 15m
Fri 11/1312:15 am -
1 stop7h 10m
Deal found 9/5![Southwest logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/31:48 pm -
2 stops10h 27m
Sat 10/107:00 am -
1 stop6h 43m
Deal found 9/5![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/73:05 pm -
2 stops10h 51m
Wed 10/2111:13 pm -
1 stop7h 16m
Deal found 9/5![United Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 9/5. 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 10/17:35 pm -
1 stop8h 00m
Sun 10/48:20 pm -
2 stops11h 05m
Deal found 9/5![Southwest logo]()
$503
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am -
1 stop7h 32m
Wed 9/3011:13 pm -
1 stop7h 16m
Deal found 9/8![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:46 am -
2 stops12h 51m
Wed 10/711:13 pm -
1 stop7h 16m
Deal found 9/7![United Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:45 am -
2 stops10h 50m
Sat 11/286:45 am -
1 stop14h 35m
Deal found 9/7![Southwest logo]()
$545
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:35 pm -
1 stop8h 05m
Mon 10/129:15 pm -
2 stops10h 10m
Deal found 9/6![Southwest logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/3010:46 am -
2 stops13h 15m
Sun 10/47:25 pm -
2 stops11h 04m
Deal found 9/4![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/110:30 am -
2 stops13h 07m
Sun 10/47:25 pm -
2 stops11h 04m
Deal found 9/4![United Airlines logo]()
$588
Last-minute flights from Buffalo to SeattleDiscover last-minute flight deals from Buffalo to Seattle. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Seattle. Data last updated September 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:18 pm -
1 stop8h 39m
Fri 10/210:45 pm -
1 stop8h 33m
Deal found 9/8![American Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:04 am -
1 stop8h 45m
Wed 10/73:00 pm -
1 stop5h 59m
Deal found 9/9![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:46 am -
1 stop8h 05m
Sun 10/411:14 pm -
1 stop7h 21m
Deal found 9/9![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:48 pm -
2 stops10h 27m
Sat 10/1010:42 am -
1 stop7h 05m
Deal found 9/8![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/36:56 pm -
1 stop8h 15m
Sat 10/178:24 am -
1 stop7h 45m
Deal found 9/5![American Airlines logo]()
$448
This Southwest deal was found by Cheapflights users on 9/5. 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.
Sat 10/37:35 am -
2 stops15h 25m
Fri 10/1612:10 am -
2 stops11h 25m
Deal found 9/5![Southwest logo]()
$465
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:50 pm -
1 stop9h 46m
Fri 10/1610:48 pm -
1 stop10h 58m
Deal found 9/8![American Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:56 pm -
1 stop10h 14m
Mon 10/1911:59 pm -
1 stop7h 54m
Deal found 9/8![American Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:00 pm -
2 stops11h 40m
Tue 10/279:00 am -
2 stops8h 35m
Deal found 9/6![Southwest logo]()
$459
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:50 pm -
2 stops12h 50m
Sun 11/112:15 am -
2 stops10h 10m
Deal found 9/8![Southwest logo]()
$387
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 September 9, 2026.
Search for one-way flight options from Buffalo to Seattle. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:44 pm -
2 stops28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:44 pm -
2 stops28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:40 pm -
2 stops23h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:51 pm -
2 stops41h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$169
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:15 am -
1 stop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:00 pm -
2 stops11h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:48 pm -
2 stops24h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:44 pm -
2 stops28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Mon 10/121:44 pm -
2 stops28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$204
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:06 am -
1 stop8h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$206
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (Delta) |
One-way from | $129 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $476 |
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 7,457,451 searches. Data last updated September 9, 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
Sat 10/17
11:20 am-8:09 pm
1 stop11h 49m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 10/13
3:53 pm-11:04 pm
1 stop10h 11m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
Quickest round-trip
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 12/8
5:39 pm-10:33 pm
1 stop7h 54m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$225
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Mon 10/12
5:50 pm-12:36 am
1 stop9h 46m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$225
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Thu 10/1
2:51 pm-9:05 pm
1 stop9h 14m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$225
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 10/13
2:00 pm-10:40 pm
2 stops11h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Thu 10/1
10:46 am-8:37 pm
2 stops12h 51m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$285
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 10/24
6:30 am-8:37 pm
3 stops17h 07m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$290
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sun 10/11
5:50 am-1:45 pm
2 stops10h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$309
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 11/10
2:00 pm-10:15 pm
2 stops11h 15m
Seattle/Tacoma Intl
Fri 11/13
12:15 am-10:25 am
1 stop7h 10m
$454
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 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 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 46 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 $390 and $556 in October.The cheapest round-trip price found within the last 5 days was $377 on Delta (Oct 1-Oct 7).
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 September 9, 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.
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from 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
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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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$352 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$238 | Average$492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$361 | Average$574 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$368 | Average$526 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$370 | Average$510 | FlexibilityNo cancel fee | On-time71% |