$116+ Cheap flights from Great Falls to Seattle (GTF - 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SEA
Jul 13 — Jul 201
Round-trip
1 adult, Economy
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Cheapest flights from Great Falls to SeattleExplore the most affordable flight options available from Great Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
Explore the most affordable flight options available from Great Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Tue 9/82:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Mon 9/72:08 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Fri 9/112:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 6/12. 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 11/76:20 pm
GTF
- SEA
1 stop6h 51m
Delta
Wed 11/1111:25 am
SEA
- GTF
1 stop5h 18m
Delta
Deal found 6/12![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 6/8. 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.
Sun 8/306:22 pm
GTF
- SEA
1 stop6h 37m
Delta
Wed 9/99:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$236
This Delta deal was found by Cheapflights users on 6/8. 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.
Sun 8/306:22 pm
GTF
- SEA
1 stop6h 37m
Delta
Fri 9/119:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$246
This Delta deal was found by Cheapflights users on 6/10. 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 10/16:21 pm
GTF
- SEA
1 stop6h 38m
Delta
Mon 10/55:25 am
SEA
- GTF
1 stop6h 10m
Delta
Deal found 6/10![Delta logo]()
$256
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 8/317:06 am
GTF
- SEA
1 stop6h 53m
Delta
Wed 9/99:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 6/8. 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.
Sun 8/306:22 pm
GTF
- SEA
1 stop6h 37m
Delta
Sat 9/129:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$266
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:19 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Fri 9/112:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 8/317:06 am
GTF
- SEA
1 stop6h 53m
Delta
Fri 9/119:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$272
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 8/317:06 am
GTF
- SEA
1 stop6h 53m
Delta
Sat 9/129:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$292
Best flights from Great Falls to SeattleDiscover carefully curated flight deals from Great Falls to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
Discover carefully curated flight deals from Great Falls to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Sat 9/52:08 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 6/12. 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 11/76:20 pm
GTF
- SEA
1 stop6h 51m
Delta
Wed 11/1111:25 am
SEA
- GTF
1 stop5h 18m
Delta
Deal found 6/12![Delta logo]()
$226
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Tue 9/82:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Mon 9/72:08 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 9/36:22 pm
GTF
- SEA
1 stop4h 43m
Delta
Wed 9/99:40 am
SEA
- GTF
1 stop6h 59m
Delta
Deal found 6/8![Delta logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Sun 9/132:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 9/86:20 pm
GTF
- SEA
1 stop4h 56m
Delta
Fri 9/115:45 am
SEA
- GTF
1 stop5h 38m
Delta
Deal found 6/9![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 6/8. 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 9/11:08 pm
GTF
- SEA
1 stop6h 36m
Delta
Mon 9/78:59 pm
SEA
- GTF
2 stops14h 24m
Delta
Deal found 6/8![Delta logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:19 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Sun 9/202:02 pm
SEA
- GTF
Nonstop1h 37m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$478
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Mon 6/291:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Tue 7/211:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$513
Last-minute flights from Great Falls to SeattleDiscover last-minute flight deals from Great Falls to Seattle. Data last updated June 13, 2026 and is based on user searches.
Discover last-minute flight deals from Great Falls to Seattle. Data last updated June 13, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Fri 7/31:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Wed 7/11:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 6/10. 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 6/246:25 pm
GTF
- SEA
1 stop4h 40m
Delta
Fri 7/39:30 am
SEA
- GTF
1 stop7h 14m
Delta
Deal found 6/10![Delta logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Thu 7/21:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Wed 7/11:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 6/2610:18 am
GTF
- SEA
1 stop25h 17m
Multiple Airlines
Thu 7/211:53 am
SEA
- GTF
2 stops20h 36m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Tue 7/211:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$363
This Priceline deal was found by Cheapflights users on 6/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Tue 7/211:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$393
This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Sun 7/191:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/1710:24 am
GTF
- SEA
2 stops10h 14m
Multiple Airlines
Sun 7/198:53 pm
SEA
- GTF
1 stop11h 36m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$455
This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:09 pm
GTF
- SEA
Nonstop1h 50m
Alaska Airlines
Sun 7/261:53 pm
SEA
- GTF
Nonstop1h 36m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$538
One-way flights from Great Falls to SeattleSearch for one-way flight options from Great Falls to Seattle. Find affordable one-way fares based on user searches. Data last updated June 13, 2026.
Search for one-way flight options from Great Falls to Seattle. Find affordable one-way fares based on user searches. Data last updated June 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/1710:19 am
GTF
- SEA
1 stop25h 16m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/1010:19 am
GTF
- SEA
1 stop25h 49m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$123
This Priceline deal was found by Cheapflights users on 6/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:18 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/1310:19 am
GTF
- SEA
1 stop25h 20m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$138
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:25 pm
GTF
- SEA
Nonstop1h 49m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$139
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 8/196:22 pm
GTF
- SEA
1 stop4h 43m
Delta
Deal found 6/8![Delta logo]()
$143
This Delta deal was found by Cheapflights users on 6/9. 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.
Fri 8/281:08 pm
GTF
- SEA
1 stop6h 36m
Delta
Deal found 6/9![Delta logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:19 am
GTF
- SEA
1 stop25h 20m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$165
Find flight deals from Great Falls to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) 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 June 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Alaska Airlines) |
One-way from | $116 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $307 |
Good round-trip deal | $510 or less |
Good one-way deal | $224 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Great Falls 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 June 13, 2026.
Use the filters below to find and compare flights from Great Falls to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Tue 9/1
5:18 pm-6:07 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Sat 9/5
2:08 pm-4:45 pm
Nonstop1h 37m
$197
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Wed 9/2
5:18 pm-6:07 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Tue 9/8
2:02 pm-4:39 pm
Nonstop1h 37m
$197
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Sat 8/29
5:18 pm-6:07 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Mon 9/7
2:08 pm-4:45 pm
Nonstop1h 37m
$207
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Sun 8/30
5:18 pm-6:07 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Sun 9/13
2:02 pm-4:39 pm
Nonstop1h 37m
$217
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Sat 11/7
6:20 pm-12:11 am
1 stop6h 51m
Seattle/Tacoma Intl
Wed 11/11
11:25 am-5:43 pm
1 stop5h 18m
$226
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Thu 9/3
6:22 pm-10:05 pm
1 stop4h 43m
Seattle/Tacoma Intl
Wed 9/9
9:40 am-5:39 pm
1 stop6h 59m
$236
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Tue 9/8
6:20 pm-10:16 pm
1 stop4h 56m
Seattle/Tacoma Intl
Fri 9/11
5:45 am-12:23 pm
1 stop5h 38m
$301
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Tue 9/1
1:08 pm-6:44 pm
1 stop6h 36m
Seattle/Tacoma Intl
Mon 9/7
8:59 pm-12:23 pm
2 stops14h 24m
$384
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Thu 9/10
5:19 pm-6:08 pm
Nonstop1h 49m
Seattle/Tacoma Intl
Sun 9/20
2:02 pm-4:39 pm
Nonstop1h 37m
$478
Great FallsSeattle
GTF - SEA
GTFSEA
Great Falls
Fri 6/26
5:09 pm-5:59 pm
Nonstop1h 50m
Seattle/Tacoma Intl
Mon 6/29
1:53 pm-4:29 pm
Nonstop1h 36m
$488
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Great Falls 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 Great Falls to Seattle in June.
| 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 Great Falls-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Great Falls-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 Great Falls-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 Great Falls to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Great Falls with our price prediction graph.
GTF-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 Great Falls to Seattle
What is the cheapest month to book a flight from Great Falls to Seattle?
Currently, January is the cheapest month in which you can book a flight from Great Falls to Seattle (average of $206). Flying from Great Falls to Seattle in July is currently the most expensive (average of $440). 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.
What is the cheapest time of day to fly from GTF to SEA?
Find hourly flight availability from Great Falls to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 86% on flights from Great Falls to Seattle by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Great Falls to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Great Falls to Seattle. Price data was last updated on December 20, 2025.
Travelers seeking maximum savings on their Great Falls to Seattle flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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 June 13, 2026.
See what other customers who have flown with Alaska Airlines from Great Falls to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Great Falls 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
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline
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Top airline flying from Great Falls to Seattle
Discover the top airline that operate flights from Great Falls 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 June 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$146 | Average$296 | FlexibilityNo cancel fee | On-time75% |