$125+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Nov 6 — Nov 131
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
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Best
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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 October 7, 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 October 7, 2026.
This Delta deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:52 pm -
1 stop10h 12m
Wed 11/411:10 pm -
1 stop9h 25m
Deal found 10/5![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Sat 10/311:53 pm -
2 stops10h 26m
Mon 12/711:33 pm -
1 stop8h 09m
Deal found 10/7![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 10/6. 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 11/57:10 pm -
1 stop8h 35m
Fri 11/1312:15 am -
2 stops11h 40m
Deal found 10/6![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 10/2912:15 pm -
1 stop9h 20m
Wed 11/1110:52 pm -
1 stop8h 43m
Deal found 10/5![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:15 pm -
1 stop9h 20m
Fri 11/1311:15 pm -
1 stop6h 05m
Deal found 10/5![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/2710:51 am -
2 stops11h 12m
Wed 11/1112:45 pm -
1 stop6h 48m
Deal found 10/5![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 10/7. 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 12/162:00 pm -
2 stops11h 30m
Fri 1/81:40 pm -
1 stop7h 35m
Deal found 10/7![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 10/7. 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.
Thu 12/33:55 pm -
2 stops10h 40m
Tue 12/85:40 am -
2 stops12h 05m
Deal found 10/7![Southwest logo]()
$363
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 10/296:15 am -
1 stop7h 45m
Fri 11/1311:40 pm -
1 stop8h 26m
Deal found 10/5![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 10/5. 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.
Fri 10/303:53 pm -
1 stop9h 12m
Mon 11/911:15 pm -
1 stop6h 05m
Deal found 10/5![Delta logo]()
$379
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 October 7, 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 October 7, 2026.
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Sat 10/311:53 pm -
2 stops10h 26m
Mon 12/711:33 pm -
1 stop8h 09m
Deal found 10/7![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 10/6. 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 11/57:10 pm -
1 stop8h 35m
Fri 11/1312:15 am -
2 stops11h 40m
Deal found 10/6![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 10/2. 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.
Sat 10/2412:15 pm -
1 stop9h 20m
Sat 10/2410:59 pm -
1 stop8h 39m
Deal found 10/2![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:50 am -
2 stops10h 37m
Wed 11/1110:56 pm -
1 stop7h 25m
Deal found 10/6![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 10/7. 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.
Sat 11/217:35 pm -
1 stop8h 10m
Sat 11/285:50 am -
1 stop12h 55m
Deal found 10/7![Southwest logo]()
$483
This Delta deal was found by Cheapflights users on 10/4. 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.
Sat 12/56:24 am -
1 stop7h 46m
Sat 12/124:11 pm -
2 stops16h 13m
Deal found 10/4![Delta logo]()
$529
This Southwest deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:55 pm -
2 stops11h 25m
Tue 11/246:30 am -
2 stops12h 05m
Deal found 10/6![Southwest logo]()
$495
This Southwest deal was found by Cheapflights users on 10/3. 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.
Wed 12/233:25 pm -
1 stop12h 50m
Tue 12/298:30 pm -
2 stops10h 35m
Deal found 10/3![Southwest logo]()
$515
This Delta deal was found by Cheapflights users on 10/7. 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 12/236:00 am -
1 stop7h 44m
Tue 12/297:56 pm -
2 stops12h 14m
Deal found 10/7![Delta logo]()
$587
This Southwest deal was found by Cheapflights users on 10/5. 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 1/23:30 pm -
2 stops13h 00m
Tue 1/121:40 pm -
1 stop7h 35m
Deal found 10/5![Southwest logo]()
$525
Last-minute flights from Buffalo to SeattleDiscover last-minute flight deals from Buffalo to Seattle. Data last updated October 7, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Seattle. Data last updated October 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:52 pm -
1 stop10h 12m
Wed 11/411:10 pm -
1 stop9h 25m
Deal found 10/5![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:52 pm -
1 stop10h 12m
Fri 11/611:10 pm -
1 stop6h 16m
Deal found 10/5![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/2710:51 am -
2 stops11h 12m
Wed 11/1112:45 pm -
1 stop6h 48m
Deal found 10/5![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:52 pm -
1 stop10h 12m
Sun 11/811:10 pm -
1 stop6h 10m
Deal found 10/5![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 10/293:53 pm -
1 stop9h 12m
Mon 11/911:15 pm -
1 stop9h 03m
Deal found 10/5![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 10/296:15 am -
1 stop7h 45m
Fri 11/1311:40 pm -
1 stop8h 26m
Deal found 10/5![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 10/5. 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.
Fri 10/303:53 pm -
1 stop9h 12m
Mon 11/911:15 pm -
1 stop6h 05m
Deal found 10/5![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Sat 10/311:53 pm -
2 stops10h 26m
Mon 12/711:33 pm -
1 stop8h 09m
Deal found 10/7![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 10/6. 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 11/57:10 pm -
1 stop8h 35m
Fri 11/1312:15 am -
2 stops11h 40m
Deal found 10/6![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 10/6. 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 11/57:10 pm -
1 stop8h 35m
Thu 11/1212:15 am -
2 stops11h 10m
Deal found 10/6![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 10/5. 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 11/57:10 pm -
1 stop8h 35m
Wed 11/1111:20 am -
1 stop6h 35m
Deal found 10/5![Southwest logo]()
$400
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 October 7, 2026.
Search for one-way flight options from Buffalo to Seattle. Find affordable one-way fares based on user searches. Data last updated October 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 12/111:15 pm -
2 stops29h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Wed 10/282:00 pm -
2 stops22h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$128
This Delta deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:00 am -
1 stop9h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Delta logo]()
$156
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:35 am -
2 stops11h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 10/4. 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.
Mon 10/267:35 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 10/301:48 pm -
2 stops28h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$179
This Southwest deal was found by Cheapflights users on 10/4. 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 10/272:00 pm -
2 stops11h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Southwest logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Thu 11/56:47 pm -
2 stops47h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:02 am -
2 stops34h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$184
This American Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 12/16:40 pm -
1 stop9h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![American Airlines logo]()
$196
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 October 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Delta) |
One-way from | $125 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $527 |
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 October 7, 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
Quickest round-trip
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 10/31
5:49 pm-11:17 pm
1 stop8h 28m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$156
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Thu 11/12
7:10 pm-12:45 am
1 stop8h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$156
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Wed 12/2
3:55 pm-11:35 pm
2 stops10h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 10/27
6:30 am-4:27 pm
2 stops12h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Tue 12/15
3:55 pm-11:30 pm
2 stops10h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Sat 10/24
12:30 pm-9:40 pm
2 stops12h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$230
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Thu 11/5
11:20 am-8:09 pm
1 stop11h 49m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Wed 11/4
5:20 pm-11:17 pm
1 stop8h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Mon 11/2
7:10 pm-12:40 am
1 stop8h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
BuffaloSeattle
BUF Buffalo - SEA Seattle/Tacoma Intl
BUFSEA
Buffalo
Wed 10/28
6:00 am-2:19 pm
1 stop11h 19m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$274
Showing 1-10 of 21 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 October.
| 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 $618). 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 $420 and $621 in October.The cheapest round-trip price found within the last 5 days was $311 on Delta (Oct 27-Nov 4).
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 October 7, 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.
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
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
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Marysville
Lakewood
Fife
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 7,457,451 searches. Data last updated October 7, 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$368 | Average$513 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$371 | Average$579 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$373 | Average$509 | FlexibilityNo cancel fee | On-time71% |