$84+ Cheap flights from Missouri to Seattle (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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SEA
Aug 17 — Aug 241
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to SeattleExplore the most affordable flight options available from Missouri to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
Explore the most affordable flight options available from Missouri to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/1412:52 pm
SGF
- SEA
1 stop23h 08m
Multiple Airlines
Thu 9/179:16 pm
SEA
- SGF
1 stop12h 26m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:52 pm
SGF
- SEA
1 stop23h 08m
Multiple Airlines
Thu 9/249:16 pm
SEA
- SGF
1 stop12h 26m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/1112:42 pm
SGF
- SEA
1 stop23h 18m
Multiple Airlines
Sun 9/139:16 pm
SEA
- SGF
1 stop12h 46m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/319:17 pm
SGF
- SEA
1 stop15h 22m
Multiple Airlines
Thu 9/310:34 am
SEA
- SGF
2 stops32h 11m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 10/192:59 pm
SGF
- SEA
1 stop21h 01m
Multiple Airlines
Thu 10/227:00 pm
SEA
- SGF
1 stop24h 14m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/1112:42 pm
SGF
- SEA
1 stop23h 18m
Multiple Airlines
Thu 9/177:00 pm
SEA
- SGF
1 stop14h 42m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/249:36 pm
SGF
- SEA
1 stop15h 03m
Multiple Airlines
Sun 8/309:29 pm
SEA
- SGF
1 stop20h 58m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/249:36 pm
SGF
- SEA
1 stop15h 03m
Multiple Airlines
Thu 9/310:34 am
SEA
- SGF
2 stops32h 11m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 7/14. 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 9/106:32 pm
COU
- SEA
1 stop7h 39m
American Airlines
Mon 9/1411:57 pm
SEA
- COU
1 stop7h 59m
American Airlines
Deal found 7/14![American Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/256:15 am
COU
- SEA
1 stop7h 17m
United Airlines
Sat 8/297:00 am
SEA
- COU
2 stops11h 59m
United Airlines
Deal found 7/17![United Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:36 pm
SGF
- SEA
1 stop16h 03m
Multiple Airlines
Sun 8/309:29 pm
SEA
- SGF
1 stop20h 58m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 7/14. 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 10/133:19 pm
COU
- SEA
1 stop9h 37m
United Airlines
Sun 10/1811:13 pm
SEA
- COU
1 stop9h 24m
United Airlines
Deal found 7/14![United Airlines logo]()
$357
Best flights from Missouri to SeattleDiscover carefully curated flight deals from Missouri to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
Discover carefully curated flight deals from Missouri to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/2510:55 am
COU
- SEA
1 stop7h 12m
United Airlines
Sat 8/297:00 am
SEA
- COU
2 stops11h 59m
United Airlines
Deal found 7/17![United Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 7/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:41 pm
SGF
- SEA
1 stop7h 55m
American Airlines
Thu 9/2411:59 pm
SEA
- SGF
1 stop7h 09m
American Airlines
Deal found 7/12![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/17. 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 9/245:34 pm
SGF
- SEA
1 stop8h 25m
Delta
Sun 9/2711:59 pm
SEA
- SGF
1 stop8h 43m
Delta
Deal found 7/17![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 9/92:53 pm
MCI
- SEA
1 stop5h 58m
Alaska Airlines
Sun 9/139:59 pm
SEA
- MCI
1 stop12h 39m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 7/17. 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 8/2110:20 am
MCI
- SEA
2 stops8h 45m
Southwest
Wed 8/266:40 am
SEA
- MCI
2 stops8h 55m
Southwest
Deal found 7/17![Southwest logo]()
$392
This Mytrip deal was found by Cheapflights users on 7/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:10 pm
IRK
- SEA
1 stop12h 54m
Multiple Airlines
Wed 8/195:51 pm
SEA
- IRK
1 stop20h 19m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 7/17. 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 12/511:15 am
COU
- SEA
2 stops11h 57m
United Airlines
Wed 12/97:00 am
SEA
- COU
1 stop8h 23m
United Airlines
Deal found 7/17![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 7/14. 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 8/146:06 am
SGF
- SEA
1 stop10h 39m
Delta
Fri 8/2111:59 pm
SEA
- SGF
1 stop8h 54m
Delta
Deal found 7/14![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:36 pm
STL
- SEA
Nonstop4h 23m
Alaska Airlines
Sat 9/128:35 am
SEA
- STL
1 stop6h 35m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
MCI
- SEA
2 stops8h 30m
Southwest
Sun 8/167:10 am
SEA
- MCI
2 stops10h 10m
Southwest
Deal found 7/14![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:30 am
SGF
- SEA
1 stop6h 31m
United Airlines
Wed 9/911:00 pm
SEA
- SGF
1 stop9h 50m
United Airlines
Deal found 7/14![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 7/17. 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 8/103:58 pm
MCI
- SEA
1 stop9h 59m
Delta
Sat 8/225:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 7/17![Delta logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 9/112:53 pm
MCI
- SEA
1 stop7h 42m
Alaska Airlines
Mon 9/146:27 pm
SEA
- MCI
Nonstop3h 32m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 7/14. 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 10/136:15 am
COU
- SEA
2 stops11h 18m
United Airlines
Sun 10/1811:13 pm
SEA
- COU
1 stop9h 24m
United Airlines
Deal found 7/14![United Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 7/14. 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 8/146:06 am
SGF
- SEA
1 stop10h 39m
Delta
Tue 8/1811:59 pm
SEA
- SGF
1 stop8h 54m
Delta
Deal found 7/14![Delta logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:08 pm
STL
- SEA
1 stop6h 31m
Alaska Airlines
Mon 9/288:13 am
SEA
- STL
Nonstop4h 08m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 7/14. 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 8/107:15 am
MCI
- SEA
Nonstop3h 57m
Delta
Fri 8/145:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 7/14![Delta logo]()
$412
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 9/116:25 am
SGF
- SEA
1 stop8h 23m
United Airlines
Mon 9/215:00 am
SEA
- SGF
1 stop5h 56m
United Airlines
Deal found 7/17![United Airlines logo]()
$415
This Mytrip deal was found by Cheapflights users on 7/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:55 am
UIN
- SEA
1 stop13h 39m
Multiple Airlines
Thu 8/205:51 pm
SEA
- UIN
1 stop18h 04m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$571
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 9/29:32 am
STL
- SEA
2 stops11h 19m
Alaska Airlines
Sat 9/57:08 am
SEA
- STL
1 stop8h 02m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:05 pm
SGF
- SEA
1 stop7h 59m
United Airlines
Fri 8/217:00 am
SEA
- SGF
1 stop7h 11m
United Airlines
Deal found 7/13![United Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 7/12. 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.
Fri 9/42:13 pm
MCI
- SEA
1 stop9h 52m
Delta
Sat 9/126:00 am
SEA
- MCI
1 stop7h 09m
Delta
Deal found 7/12![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 7/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
STL
- SEA
2 stops8h 50m
Southwest
Tue 9/811:10 am
SEA
- STL
2 stops8h 30m
Southwest
Deal found 7/12![Southwest logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/309:55 am
UIN
- SEA
1 stop24h 35m
Multiple Airlines
Sun 9/68:48 am
SEA
- UIN
2 stops27h 07m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$592
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Sat 10/1012:46 pm
STL
- SEA
2 stops9h 44m
Alaska Airlines
Wed 10/148:46 am
SEA
- STL
2 stops10h 22m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:30 am
SGF
- SEA
1 stop6h 31m
United Airlines
Tue 8/187:00 am
SEA
- SGF
1 stop7h 11m
United Airlines
Deal found 7/13![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 7/16. 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 8/47:15 am
MCI
- SEA
Nonstop3h 57m
Delta
Thu 8/1311:59 pm
SEA
- MCI
1 stop6h 35m
Delta
Deal found 7/16![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Mon 8/245:13 pm
MCI
- SEA
1 stop6h 02m
United Airlines
Wed 8/2612:15 pm
SEA
- MCI
2 stops9h 15m
United Airlines
Deal found 7/15![United Airlines logo]()
$432
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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 8/193:04 pm
STL
- SEA
Nonstop4h 23m
Alaska Airlines
Mon 8/246:03 pm
SEA
- STL
Nonstop3h 56m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/205:13 pm
MCI
- SEA
1 stop7h 51m
United Airlines
Tue 8/259:05 am
SEA
- MCI
2 stops9h 29m
United Airlines
Deal found 7/16![United Airlines logo]()
$432
Last-minute flights from Missouri to SeattleDiscover last-minute flight deals from Missouri to Seattle. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Seattle. Data last updated July 18, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 7/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:32 pm
MCI
- SEA
1 stop20h 07m
Frontier
Mon 8/37:06 pm
SEA
- MCI
1 stop15h 54m
Frontier
Deal found 7/14![Frontier logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/31:45 pm
MCI
- SEA
1 stop21h 32m
Frontier
Mon 8/108:53 pm
SEA
- MCI
2 stops14h 07m
Frontier
Deal found 7/16![Frontier logo]()
$360
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:52 pm
MCI
- SEA
1 stop7h 53m
Delta
Tue 8/255:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 7/13![Delta logo]()
$362
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:13 pm
SGF
- SEA
1 stop7h 34m
American Airlines
Tue 8/2511:56 pm
SEA
- SGF
1 stop8h 08m
American Airlines
Deal found 7/13![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:30 am
SGF
- SEA
1 stop6h 31m
United Airlines
Wed 9/911:00 pm
SEA
- SGF
1 stop9h 50m
United Airlines
Deal found 7/14![United Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/211:38 pm
MCI
- SEA
1 stop21h 41m
Multiple Airlines
Mon 8/246:27 pm
SEA
- MCI
Nonstop3h 32m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/249:36 pm
SGF
- SEA
1 stop15h 03m
Multiple Airlines
Sun 8/309:29 pm
SEA
- SGF
1 stop20h 58m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/249:36 pm
SGF
- SEA
1 stop15h 03m
Multiple Airlines
Thu 9/310:34 am
SEA
- SGF
2 stops32h 11m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/256:15 am
COU
- SEA
1 stop7h 17m
United Airlines
Sat 8/297:00 am
SEA
- COU
2 stops11h 59m
United Airlines
Deal found 7/17![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:37 pm
SGF
- SEA
2 stops10h 21m
United Airlines
Wed 9/23:54 pm
SEA
- SGF
1 stop5h 48m
United Airlines
Deal found 7/13![United Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:36 pm
SGF
- SEA
1 stop16h 03m
Multiple Airlines
Sun 8/309:29 pm
SEA
- SGF
1 stop20h 58m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/319:17 pm
SGF
- SEA
1 stop15h 22m
Multiple Airlines
Thu 9/310:34 am
SEA
- SGF
2 stops32h 11m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$309
One-way flights from Missouri to SeattleSearch for one-way flight options from Missouri to Seattle. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
Search for one-way flight options from Missouri to Seattle. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/118:08 pm
STL
- SEA
1 stop14h 56m
Frontier
Deal found 7/15![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:19 pm
STL
- SEA
1 stop18h 41m
Frontier
Deal found 7/13![Frontier logo]()
$85
This Delta deal was found by Cheapflights users on 7/14. 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 9/195:00 pm
STL
- SEA
1 stop7h 05m
Delta
Deal found 7/14![Delta logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/128:08 pm
STL
- SEA
1 stop14h 56m
Frontier
Deal found 7/15![Frontier logo]()
$96
This Southwest deal was found by Cheapflights users on 7/17. 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 9/262:20 pm
STL
- SEA
Nonstop4h 20m
Southwest
Deal found 7/17![Southwest logo]()
$99
This Delta deal was found by Cheapflights users on 7/14. 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 8/236:20 am
STL
- SEA
1 stop6h 40m
Delta
Deal found 7/14![Delta logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 9/1210:35 am
STL
- SEA
2 stops49h 16m
Frontier
Deal found 7/17![Frontier logo]()
$105
This Southwest deal was found by Cheapflights users on 7/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:25 am
STL
- SEA
1 stop10h 25m
Southwest
Deal found 7/13![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 7/14. 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.
Sun 9/139:55 am
STL
- SEA
2 stops10h 10m
Southwest
Deal found 7/14![Southwest logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/52:51 pm
SGF
- SEA
1 stop22h 13m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 9/2812:52 pm
SGF
- SEA
1 stop23h 08m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/38:55 pm
SGF
- SEA
2 stops40h 09m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$145
Find flight deals from Missouri to Seattle
Keep the following information in mind while searching for Missouri to Seattle flight deals. Data was last updated July 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Kiwi.com) |
One-way from | $84 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $515 |
Good round-trip deal | $415 or less |
Good one-way deal | $268 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Missouri to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
Tue 8/25
10:55 am-4:07 pm
1 stop7h 12m
Seattle/Tacoma Intl
Sat 8/29
7:00 am-8:59 pm
2 stops11h 59m
$344
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
Sat 12/5
11:15 am-9:12 pm
2 stops11h 57m
Seattle/Tacoma Intl
Wed 12/9
7:00 am-5:23 pm
1 stop8h 23m
$344
SpringfieldSeattle
SGF - SEA
SGFSEA
Springfield-Branson
Sat 9/19
3:41 pm-9:36 pm
1 stop7h 55m
Seattle/Tacoma Intl
Thu 9/24
11:59 pm-9:08 am
1 stop7h 09m
$349
SpringfieldSeattle
SGF - SEA
SGFSEA
Springfield-Branson
Thu 9/24
5:34 pm-11:59 pm
1 stop8h 25m
Seattle/Tacoma Intl
Sun 9/27
11:59 pm-10:42 am
1 stop8h 43m
$349
SpringfieldSeattle
SGF - SEA
SGFSEA
Springfield-Branson
Fri 8/14
6:06 am-2:45 pm
1 stop10h 39m
Seattle/Tacoma Intl
Fri 8/21
11:59 pm-10:53 am
1 stop8h 54m
$349
SpringfieldSeattle
SGF - SEA
SGFSEA
Springfield-Branson
Wed 8/19
5:30 am-10:01 am
1 stop6h 31m
Seattle/Tacoma Intl
Wed 9/9
11:00 pm-10:50 am
1 stop9h 50m
$361
Kansas CitySeattle
MCI - SEA
MCISEA
Kansas City
Wed 9/9
2:53 pm-6:51 pm
1 stop5h 58m
Seattle/Tacoma Intl
Sun 9/13
9:59 pm-12:38 pm
1 stop12h 39m
$372
Kansas CitySeattle
MCI - SEA
MCISEA
Kansas City
Mon 8/10
3:58 pm-11:57 pm
1 stop9h 59m
Seattle/Tacoma Intl
Sat 8/22
5:30 pm-11:02 pm
Nonstop3h 32m
$382
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
Tue 10/13
6:15 am-3:33 pm
2 stops11h 18m
Seattle/Tacoma Intl
Sun 10/18
11:13 pm-10:37 am
1 stop9h 24m
$382
SpringfieldSeattle
SGF - SEA
SGFSEA
Springfield-Branson
Fri 8/14
6:06 am-2:45 pm
1 stop10h 39m
Seattle/Tacoma Intl
Tue 8/18
11:59 pm-10:53 am
1 stop8h 54m
$384
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Missouri with our price prediction graph.
STL-SEA
SGF-SEA
MCI-SEA
COU-SEA
IRK-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 Missouri to Seattle
USMO-SEA
STL-SEA
SGF-SEA
MCI-SEA
COU-SEA
What is the cheapest month to book a flight from Missouri to Seattle?
Currently, February is the cheapest month in which you can book a flight from Missouri to Seattle (average of $237). Flying from Missouri to Seattle in July is currently the most expensive (average of $514). 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 MO to SEA?
Find hourly flight availability from Missouri 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 July 18, 2026.
One of the essential ways to save on airfare from Missouri to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 11% on airfare.
Weekly flight availability from Missouri to Seattle
Explore weekly flight availability from Missouri to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 18, 2026.
The most flights from USMO to SEA are scheduled on a Friday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Missouri to Seattle?
How far ahead should I book a flight from Missouri to Seattle?
The price you pay for your flight from Missouri to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 39 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Missouri to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Seattle. Price data was last updated on July 11, 2026.
Travelers seeking maximum savings on their Missouri to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Missouri 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
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Puyallup
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Seattle
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Complete your trip
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Search flights from Missouri to Seattle by cabin class
Find flights from Missouri to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Seattle flights
Browse other Missouri and Seattle flight options. Last updated on July 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 18, 2026.
Missouri to Seattle flights
Consider these flights traveling from Missouri to Seattle.
Top 7 airlines flying from Missouri to Seattle
Discover the top 7 airlines that operate flights from Missouri to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$113 | Average$253 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$136 | Average$312 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$320 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$152 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$188 | Average$512 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$193 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$514 | FlexibilityNo cancel fee | On-time75% |