$79+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
abr. 27 — may. 41
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 marzo 28, 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 marzo 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
mar. 6/22:34 pm
MCI
- SEA
1 stop21h 32m
Frontier
lun. 6/83:19 pm
SEA
- MCI
1 stop19h 41m
Frontier
Deal found 3/25![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
mié. 6/32:34 pm
MCI
- SEA
1 stop21h 32m
Frontier
mié. 6/107:41 pm
SEA
- MCI
1 stop15h 19m
Frontier
Deal found 3/25![Frontier logo]()
$184
This Southwest deal was found by Cheapflights users on 3/24. 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.
mié. 4/151:45 pm
STL
- SEA
1 stop12h 25m
Southwest
sáb. 4/185:45 am
SEA
- STL
2 stops10h 25m
Southwest
Deal found 3/24![Southwest logo]()
$195
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/272:15 pm
MCI
- SEA
1 stop21h 12m
Frontier
lun. 5/47:12 pm
SEA
- MCI
1 stop16h 37m
Frontier
Deal found 3/27![Frontier logo]()
$196
This CheapOair deal was found by Cheapflights users on 3/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/208:17 pm
STL
- SEA
1 stop15h 10m
Frontier
mié. 4/297:12 pm
SEA
- STL
1 stop22h 09m
Frontier
Deal found 3/23![Frontier logo]()
$196
This Delta deal was found by Cheapflights users on 3/26. 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.
jue. 5/77:59 pm
STL
- SEA
1 stop6h 13m
Delta
lun. 5/1111:59 pm
SEA
- STL
1 stop6h 47m
Delta
Deal found 3/26![Delta logo]()
$199
This Southwest deal was found by Cheapflights users on 3/23. 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.
mar. 5/55:30 am
STL
- SEA
2 stops14h 30m
Southwest
sáb. 5/95:45 am
SEA
- STL
2 stops10h 25m
Southwest
Deal found 3/23![Southwest logo]()
$200
This Delta deal was found by Cheapflights users on 3/25. 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.
mar. 4/212:20 pm
STL
- SEA
1 stop6h 10m
Delta
vie. 5/111:14 pm
SEA
- STL
1 stop8h 34m
Delta
Deal found 3/25![Delta logo]()
$203
This Southwest deal was found by Cheapflights users on 3/26. 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.
vie. 5/17:20 pm
STL
- SEA
1 stop7h 20m
Southwest
mar. 5/56:50 am
SEA
- STL
2 stops9h 15m
Southwest
Deal found 3/26![Southwest logo]()
$204
This Southwest deal was found by Cheapflights users on 3/23. 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.
jue. 4/161:45 pm
STL
- SEA
1 stop12h 20m
Southwest
lun. 4/2011:55 pm
SEA
- STL
1 stop7h 35m
Southwest
Deal found 3/23![Southwest logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
lun. 6/12:34 pm
MCI
- SEA
1 stop21h 32m
Frontier
mié. 6/108:13 pm
SEA
- MCI
2 stops14h 47m
Frontier
Deal found 3/25![Frontier logo]()
$208
This American Airlines deal was found by Cheapflights users on 3/24. 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.
lun. 4/205:21 pm
STL
- SEA
1 stop9h 15m
American Airlines
mar. 4/283:17 pm
SEA
- STL
1 stop6h 29m
American Airlines
Deal found 3/24![American Airlines logo]()
$209
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 marzo 28, 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 marzo 28, 2026.
This Southwest deal was found by Cheapflights users on 3/24. 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.
vie. 5/17:20 pm
STL
- SEA
1 stop7h 20m
Southwest
mar. 5/58:25 am
SEA
- STL
1 stop9h 45m
Southwest
Deal found 3/24![Southwest logo]()
$199
This American Airlines deal was found by Cheapflights users on 3/23. 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.
vie. 5/14:28 pm
COU
- SEA
1 stop8h 10m
American Airlines
mar. 5/57:10 am
SEA
- COU
1 stop6h 48m
American Airlines
Deal found 3/23![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 3/26. 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.
mié. 5/133:10 pm
COU
- SEA
1 stop9h 37m
United Airlines
dom. 5/1711:53 pm
SEA
- COU
1 stop9h 02m
United Airlines
Deal found 3/26![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 3/27. 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.
vie. 4/177:42 am
MCI
- SEA
Nonstop4h 09m
Delta
lun. 4/2011:15 pm
SEA
- MCI
1 stop8h 28m
Delta
Deal found 3/27![Delta logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
sáb. 5/212:00 pm
SGF
- SEA
2 stops12h 53m
Alaska Airlines
mar. 5/510:57 pm
SEA
- SGF
1 stop8h 27m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$474
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/89:45 am
UIN
- SEA
1 stop10h 17m
Multiple Airlines
dom. 4/1212:12 pm
SEA
- UIN
1 stop6h 48m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$650
This Southwest deal was found by Cheapflights users on 3/24. 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.
vie. 6/267:45 pm
STL
- SEA
1 stop7h 05m
Southwest
sáb. 7/410:45 pm
SEA
- STL
1 stop7h 00m
Southwest
Deal found 3/24![Southwest logo]()
$349
This American Airlines deal was found by Cheapflights users on 3/22. 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.
mié. 5/276:32 pm
COU
- SEA
1 stop7h 44m
American Airlines
mar. 6/211:58 pm
SEA
- COU
1 stop8h 02m
American Airlines
Deal found 3/22![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 3/27. 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.
mié. 9/168:42 am
JLN
- SEA
1 stop8h 54m
United Airlines
sáb. 9/192:26 pm
SEA
- JLN
1 stop7h 27m
United Airlines
Deal found 3/27![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 3/27. 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.
vie. 7/107:38 pm
MCI
- SEA
1 stop6h 21m
Delta
lun. 7/205:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 3/27![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/26. 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.
vie. 9/118:42 am
JLN
- SEA
2 stops15h 14m
United Airlines
sáb. 9/192:26 pm
SEA
- JLN
1 stop7h 27m
United Airlines
Deal found 3/26![United Airlines logo]()
$370
This Southwest deal was found by Cheapflights users on 3/23. 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.
dom. 7/196:00 am
STL
- SEA
2 stops8h 45m
Southwest
lun. 7/2710:45 pm
SEA
- STL
1 stop7h 00m
Southwest
Deal found 3/23![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 3/24. 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.
mié. 4/83:56 pm
SGF
- SEA
1 stop8h 09m
Delta
mar. 4/146:00 am
SEA
- SGF
1 stop7h 14m
Delta
Deal found 3/24![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 3/26. 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.
mar. 5/264:56 pm
MCI
- SEA
1 stop9h 03m
United Airlines
sáb. 5/3010:29 am
SEA
- MCI
2 stops10h 56m
United Airlines
Deal found 3/26![United Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 3/26. 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.
jue. 7/92:55 pm
MCI
- SEA
2 stops8h 35m
Southwest
mié. 7/1511:05 pm
SEA
- MCI
1 stop8h 25m
Southwest
Deal found 3/26![Southwest logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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.
mié. 5/279:29 am
SGF
- SEA
2 stops12h 59m
Alaska Airlines
sáb. 5/306:00 am
SEA
- SGF
1 stop7h 26m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 3/23. 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.
mié. 4/296:00 am
MCI
- SEA
1 stop5h 46m
United Airlines
sáb. 5/27:08 am
SEA
- MCI
2 stops11h 33m
United Airlines
Deal found 3/23![United Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 3/23. 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.
sáb. 6/135:37 pm
MCI
- SEA
1 stop8h 22m
Delta
lun. 6/225:30 pm
SEA
- MCI
Nonstop3h 39m
Delta
Deal found 3/23![Delta logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
mar. 6/169:29 am
SGF
- SEA
2 stops14h 07m
Alaska Airlines
mar. 6/236:21 am
SEA
- SGF
2 stops12h 10m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$505
This Southwest deal was found by Cheapflights users on 3/23. 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.
mié. 4/86:35 am
STL
- SEA
2 stops13h 55m
Southwest
vie. 4/1010:55 am
SEA
- STL
2 stops9h 45m
Southwest
Deal found 3/23![Southwest logo]()
$423
This United Airlines deal was found by Cheapflights users on 3/25. 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.
vie. 8/141:36 pm
STL
- SEA
2 stops11h 48m
United Airlines
sáb. 8/2211:56 pm
SEA
- STL
1 stop8h 13m
United Airlines
Deal found 3/25![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 3/25. 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.
dom. 7/261:16 pm
MCI
- SEA
1 stop8h 55m
Delta
mié. 8/55:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 3/25![Delta logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
vie. 6/57:41 pm
STL
- SEA
Nonstop4h 30m
Alaska Airlines
sáb. 6/137:15 am
SEA
- STL
1 stop8h 19m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$508
This Southwest deal was found by Cheapflights users on 3/27. 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.
lun. 6/15:55 pm
MCI
- SEA
2 stops8h 45m
Southwest
mié. 6/1010:55 am
SEA
- MCI
2 stops9h 05m
Southwest
Deal found 3/27![Southwest logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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.
lun. 7/137:56 pm
STL
- SEA
Nonstop4h 30m
Alaska Airlines
lun. 7/209:25 pm
SEA
- STL
1 stop17h 08m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 3/25. 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.
vie. 4/2411:30 am
COU
- SEA
1 stop9h 30m
United Airlines
mar. 4/288:45 am
SEA
- COU
2 stops11h 16m
United Airlines
Deal found 3/25![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 3/24. 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.
lun. 7/207:00 am
MCI
- SEA
Nonstop3h 57m
Delta
mar. 7/285:30 pm
SEA
- MCI
Nonstop3h 32m
Delta
Deal found 3/24![Delta logo]()
$507
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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.
vie. 7/105:33 pm
STL
- SEA
1 stop17h 41m
Alaska Airlines
lun. 7/137:55 am
SEA
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 3/22. 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.
mié. 5/279:14 am
COU
- SEA
2 stops12h 04m
United Airlines
mar. 6/211:02 am
SEA
- COU
1 stop7h 37m
United Airlines
Deal found 3/22![United Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 3/27. 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.
mié. 4/85:15 am
STL
- SEA
2 stops10h 20m
Southwest
sáb. 4/1110:50 am
SEA
- STL
1 stop8h 55m
Southwest
Deal found 3/27![Southwest logo]()
$473
Last-minute flights from Missouri to SeattleDiscover last-minute flight deals from Missouri to Seattle. Data last updated marzo 28, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Seattle. Data last updated marzo 28, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/41:06 pm
STL
- SEA
1 stop7h 45m
Frontier
jue. 4/99:35 pm
SEA
- STL
1 stop11h 52m
Frontier
Deal found 3/27![Frontier logo]()
$251
This American Airlines deal was found by Cheapflights users on 3/23. 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.
lun. 4/64:13 pm
STL
- SEA
1 stop8h 56m
American Airlines
jue. 4/91:19 pm
SEA
- STL
1 stop8h 27m
American Airlines
Deal found 3/23![American Airlines logo]()
$349
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/98:46 pm
MCI
- SEA
1 stop16h 51m
Frontier
mié. 4/158:07 pm
SEA
- MCI
1 stop15h 23m
Frontier
Deal found 3/25![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
lun. 4/138:43 pm
MCI
- SEA
1 stop14h 44m
Frontier
sáb. 4/187:12 pm
SEA
- MCI
2 stops37h 16m
Frontier
Deal found 3/24![Frontier logo]()
$239
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/162:15 pm
MCI
- SEA
1 stop21h 37m
Frontier
dom. 4/197:12 pm
SEA
- MCI
1 stop16h 18m
Frontier
Deal found 3/25![Frontier logo]()
$216
This United Airlines deal was found by Cheapflights users on 3/27. 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.
mar. 4/2111:30 am
COU
- SEA
1 stop7h 11m
United Airlines
sáb. 4/2511:59 pm
SEA
- COU
1 stop8h 56m
United Airlines
Deal found 3/27![United Airlines logo]()
$358
This American Airlines deal was found by Cheapflights users on 3/24. 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.
mié. 4/226:06 pm
MCI
- SEA
1 stop8h 30m
American Airlines
mar. 4/287:00 am
SEA
- MCI
1 stop8h 32m
American Airlines
Deal found 3/24![American Airlines logo]()
$257
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/242:15 pm
MCI
- SEA
1 stop21h 12m
Frontier
vie. 5/17:12 pm
SEA
- MCI
1 stop16h 54m
Frontier
Deal found 3/27![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/262:15 pm
MCI
- SEA
1 stop26h 50m
Frontier
dom. 5/37:12 pm
SEA
- MCI
1 stop16h 18m
Frontier
Deal found 3/27![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/272:15 pm
MCI
- SEA
1 stop21h 12m
Frontier
lun. 5/47:12 pm
SEA
- MCI
1 stop16h 37m
Frontier
Deal found 3/27![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
lun. 4/272:15 pm
MCI
- SEA
1 stop21h 12m
Frontier
vie. 5/14:20 pm
SEA
- MCI
1 stop19h 46m
Frontier
Deal found 3/24![Frontier logo]()
$214
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/302:15 pm
MCI
- SEA
1 stop21h 37m
Frontier
dom. 5/37:12 pm
SEA
- MCI
1 stop16h 18m
Frontier
Deal found 3/25![Frontier logo]()
$220
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 marzo 28, 2026.
Search for one-way flight options from Missouri to Seattle. Find affordable one-way fares based on user searches. Data last updated marzo 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
mar. 5/52:34 pm
MCI
- SEA
1 stop21h 15m
Frontier
Deal found 3/27![Frontier logo]()
$79
This Southwest deal was found by Cheapflights users on 3/24. 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.
mar. 6/95:50 am
STL
- SEA
1 stop6h 30m
Southwest
Deal found 3/24![Southwest logo]()
$80
This American Airlines deal was found by Cheapflights users on 3/24. 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.
mar. 4/215:21 pm
STL
- SEA
1 stop9h 15m
American Airlines
Deal found 3/24![American Airlines logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
lun. 4/138:19 pm
STL
- SEA
1 stop15h 08m
Frontier
Deal found 3/24![Frontier logo]()
$86
This Delta deal was found by Cheapflights users on 3/25. 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.
mié. 4/226:45 pm
STL
- SEA
1 stop7h 14m
Delta
Deal found 3/25![Delta logo]()
$89
This Southwest deal was found by Cheapflights users on 3/25. 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.
mié. 5/66:35 am
STL
- SEA
2 stops13h 55m
Southwest
Deal found 3/25![Southwest logo]()
$90
This Southwest deal was found by Cheapflights users on 3/23. 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.
mié. 4/221:45 pm
STL
- SEA
1 stop12h 25m
Southwest
Deal found 3/23![Southwest logo]()
$91
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/172:15 pm
MCI
- SEA
1 stop21h 12m
Frontier
Deal found 3/27![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 3/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/239:55 pm
STL
- SEA
1 stop25h 01m
Frontier
Deal found 3/24![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
mié. 5/62:34 pm
MCI
- SEA
1 stop21h 15m
Frontier
Deal found 3/27![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
mié. 5/132:34 pm
MCI
- SEA
1 stop21h 15m
Frontier
Deal found 3/24![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
mar. 5/268:08 pm
STL
- SEA
1 stop15h 58m
Frontier
Deal found 3/25![Frontier logo]()
$95
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 marzo 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $170 (Kiwi.com) |
One-way from | $79 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $298 |
Good round-trip deal | $318 or less |
Good one-way deal | $188 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 marzo 28, 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
St. LouisSeattle
STL - SEA
STLSEA
Lambert-St Louis
vie. 5/1
7:20 pm-12:40 am
1 stop7h 20m
Seattle/Tacoma Intl
mar. 5/5
8:25 am-8:10 pm
1 stop9h 45m
$199
St. LouisSeattle
STL - SEA
STLSEA
Lambert-St Louis
vie. 6/26
7:45 pm-12:50 am
1 stop7h 05m
Seattle/Tacoma Intl
sáb. 7/4
10:45 pm-7:45 am
1 stop7h 00m
$349
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
vie. 5/1
4:28 pm-10:38 pm
1 stop8h 10m
Seattle/Tacoma Intl
mar. 5/5
7:10 am-3:58 pm
1 stop6h 48m
$358
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
mié. 5/13
3:10 pm-10:47 pm
1 stop9h 37m
Seattle/Tacoma Intl
dom. 5/17
11:53 pm-10:55 am
1 stop9h 02m
$358
ColumbiaSeattle
COU - SEA
COUSEA
Columbia Regional
mié. 5/27
6:32 pm-12:16 am
1 stop7h 44m
Seattle/Tacoma Intl
mar. 6/2
11:58 pm-10:00 am
1 stop8h 02m
$358
JoplinSeattle
JLN - SEA
JLNSEA
Joplin
mié. 9/16
8:42 am-3:36 pm
1 stop8h 54m
Seattle/Tacoma Intl
sáb. 9/19
2:26 pm-11:53 pm
1 stop7h 27m
$364
JoplinSeattle
JLN - SEA
JLNSEA
Joplin
vie. 9/11
8:42 am-9:56 pm
2 stops15h 14m
Seattle/Tacoma Intl
sáb. 9/19
2:26 pm-11:53 pm
1 stop7h 27m
$370
St. LouisSeattle
STL - SEA
STLSEA
Lambert-St Louis
dom. 7/19
6:00 am-12:45 pm
2 stops8h 45m
Seattle/Tacoma Intl
lun. 7/27
10:45 pm-7:45 am
1 stop7h 00m
$374
Kansas CitySeattle
MCI - SEA
MCISEA
Kansas City
mar. 5/26
4:56 pm-11:59 pm
1 stop9h 03m
Seattle/Tacoma Intl
sáb. 5/30
10:29 am-11:25 pm
2 stops10h 56m
$378
Kansas CitySeattle
MCI - SEA
MCISEA
Kansas City
mié. 4/29
6:00 am-9:46 am
1 stop5h 46m
Seattle/Tacoma Intl
sáb. 5/2
7:08 am-8:41 pm
2 stops11h 33m
$378
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.
MCI-SEA
STL-SEA
COU-SEA
SGF-SEA
UIN-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
MCI-SEA
STL-SEA
COU-SEA
SGF-SEA
What is the cheapest month to book a flight from Missouri to Seattle?
Currently, March is the cheapest month in which you can book a flight from Missouri to Seattle (average of $109). Flying from Missouri to Seattle in August is currently the most expensive (average of $210). 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 marzo 28, 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 19% on airfare.
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 March 23, 2026.
Travelers seeking maximum savings on their Missouri to Seattle flight should consider departing on Tuesday 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.
How much does it cost to fly round-trip from Missouri to Seattle?
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
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Snoqualmie
Ellensburg
Tukwila
Fife
Lakewood
Leavenworth
Issaquah
Aberdeen
Shoreline
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Missouri to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
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 marzo 28, 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 marzo 28, 2026.
Missouri to Seattle flights
Consider these flights traveling from Missouri to Seattle.
Top 8 airlines flying from Missouri to Seattle
Discover the top 8 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 marzo 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$89 | Average$224 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$94 | Average$265 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$119 | Average$225 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$163 | Average$364 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$169 | Average$359 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$178 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$183 | Average$487 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$470 | FlexibilityNo cancel fee | On-time75% |