$75+ Cheap flights from Washington to Missouri
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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MCI
Aug 16 — Aug 231
Round-trip
1 adult, Economy
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Cheapest flights from Washington to MissouriExplore the most affordable flight options available from Washington to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.
Explore the most affordable flight options available from Washington to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 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.
Wed 9/303:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Mon 10/52:17 pm
MCI
- PDX
1 stop26h 10m
Frontier
Deal found 7/15![Frontier logo]()
$225
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.
Tue 9/85:56 pm
PDX
- MCI
1 stop17h 26m
Frontier
Fri 9/112:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/17![Frontier logo]()
$233
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:40 am
PDX
- MCI
Nonstop3h 20m
Southwest
Sat 8/291:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/15![Southwest logo]()
$237
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.
Wed 8/195:56 pm
PDX
- MCI
1 stop17h 24m
Frontier
Mon 8/241:38 pm
MCI
- PDX
1 stop29h 33m
Frontier
Deal found 7/13![Frontier logo]()
$238
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Mon 10/512:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 7/12![Frontier logo]()
$240
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 10/145:35 pm
PDX
- MCI
1 stop17h 47m
Frontier
Mon 10/192:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/15![Frontier logo]()
$243
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.
Tue 9/85:56 pm
PDX
- MCI
1 stop17h 26m
Frontier
Thu 9/102:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/17![Frontier logo]()
$244
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.
Mon 9/213:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Wed 9/232:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/17![Frontier logo]()
$246
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:40 pm
PDX
- MCI
1 stop9h 05m
Southwest
Sat 9/191:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/15![Southwest logo]()
$247
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Wed 9/26:45 pm
STL
- PDX
1 stop20h 07m
Frontier
Deal found 7/14![Frontier logo]()
$249
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Sun 9/138:10 pm
STL
- PDX
1 stop22h 25m
Frontier
Deal found 7/13![Frontier logo]()
$250
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:20 pm
PDX
- MCI
1 stop22h 33m
Frontier
Sat 9/51:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 7/17![Frontier logo]()
$251
Best flights from Washington to MissouriDiscover carefully curated flight deals from Washington to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 17, 2026.
Discover carefully curated flight deals from Washington to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 17, 2026.
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 8/298:00 am
PDX
- MCI
1 stop9h 10m
Southwest
Sat 9/51:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/17![Southwest logo]()
$247
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:20 am
PDX
- STL
1 stop6h 01m
Alaska Airlines
Wed 9/236:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Deal found 7/17![Alaska Airlines logo]()
$307
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.
Thu 8/207:16 am
PDX
- STL
1 stop6h 22m
United Airlines
Sun 8/236:59 pm
STL
- PDX
1 stop5h 55m
United Airlines
Deal found 7/15![United Airlines logo]()
$319
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 9/43:00 pm
PDX
- STL
1 stop6h 26m
Delta
Mon 9/73:39 pm
STL
- PDX
1 stop8h 11m
Delta
Deal found 7/12![Delta logo]()
$319
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3111:41 pm
PDX
- SGF
1 stop8h 31m
American Airlines
Sun 8/27:40 pm
SGF
- PDX
1 stop7h 15m
American Airlines
Deal found 7/15![American Airlines logo]()
$419
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.
Sun 7/268:53 pm
SEA
- STL
1 stop19h 22m
Frontier
Fri 7/318:08 pm
STL
- SEA
2 stops40h 31m
Frontier
Deal found 7/12![Frontier logo]()
$440
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.
Thu 8/136:49 pm
PDX
- SGF
1 stop15h 42m
Multiple Airlines
Thu 8/271:18 pm
SGF
- PDX
2 stops21h 08m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$463
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:05 am
PDX
- MCI
1 stop7h 00m
Southwest
Thu 8/207:00 pm
MCI
- PDX
1 stop6h 05m
Southwest
Deal found 7/15![Southwest logo]()
$257
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.
Mon 9/2111:30 pm
PDX
- MCI
1 stop7h 10m
Southwest
Wed 9/2311:45 am
MCI
- PDX
2 stops8h 05m
Southwest
Deal found 7/17![Southwest logo]()
$292
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 9/43:25 pm
PDX
- MCI
1 stop5h 37m
Delta
Wed 9/97:00 am
MCI
- PDX
1 stop7h 15m
Delta
Deal found 7/12![Delta logo]()
$323
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.
Thu 8/2711:48 am
PDX
- MCI
1 stop10h 11m
Alaska Airlines
Sat 8/292:48 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:35 am
PDX
- MCI
2 stops8h 45m
Southwest
Fri 8/147:00 pm
MCI
- PDX
1 stop6h 40m
Southwest
Deal found 7/16![Southwest logo]()
$298
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.
Fri 9/412:25 pm
PDX
- MCI
1 stop8h 37m
Delta
Mon 9/77:15 am
MCI
- PDX
1 stop6h 30m
Delta
Deal found 7/13![Delta logo]()
$329
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Tue 9/296:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$337
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.
Sat 8/155:00 am
GEG
- STL
1 stop5h 40m
United Airlines
Sat 8/227:25 am
STL
- GEG
1 stop6h 58m
United Airlines
Deal found 7/15![United Airlines logo]()
$380
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 8/45:08 pm
PDX
- MCI
1 stop5h 05m
Delta
Fri 8/76:01 pm
MCI
- PDX
1 stop7h 43m
Delta
Deal found 7/16![Delta logo]()
$329
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 8/2211:20 am
PDX
- STL
1 stop8h 40m
Southwest
Sat 8/298:25 am
STL
- PDX
2 stops11h 15m
Southwest
Deal found 7/17![Southwest logo]()
$322
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.
Tue 10/62:30 pm
PDX
- STL
1 stop7h 29m
Alaska Airlines
Wed 10/77:00 am
STL
- PDX
1 stop8h 27m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$357
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.
Wed 8/1912:35 am
PDX
- MCI
1 stop5h 59m
Delta
Mon 8/247:00 am
MCI
- PDX
1 stop7h 10m
Delta
Deal found 7/13![Delta logo]()
$329
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.
Thu 10/111:30 pm
PDX
- SGF
1 stop9h 15m
United Airlines
Tue 10/65:30 am
SGF
- PDX
1 stop5h 57m
United Airlines
Deal found 7/14![United Airlines logo]()
$399
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 8/246:15 am
PDX
- STL
1 stop8h 05m
Southwest
Wed 8/2612:20 pm
STL
- PDX
2 stops9h 30m
Southwest
Deal found 7/14![Southwest logo]()
$323
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 9/2310:35 am
PDX
- SGF
1 stop9h 27m
United Airlines
Sat 9/265:30 am
SGF
- PDX
1 stop5h 57m
United Airlines
Deal found 7/13![United Airlines logo]()
$408
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:24 pm
SEA
- MCI
Nonstop3h 35m
Alaska Airlines
Mon 10/126:13 am
MCI
- SEA
Nonstop4h 05m
Alaska Airlines
Deal found 7/17![Alaska Airlines logo]()
$372
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:57 pm
PDX
- SGF
1 stop9h 45m
Delta
Mon 9/213:19 pm
SGF
- PDX
1 stop8h 28m
Delta
Deal found 7/15![Delta logo]()
$349
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 8/612:40 pm
PDX
- STL
1 stop9h 10m
Southwest
Mon 8/106:05 am
STL
- PDX
2 stops10h 55m
Southwest
Deal found 7/12![Southwest logo]()
$324
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:24 pm
SEA
- MCI
Nonstop3h 35m
Alaska Airlines
Sun 10/116:13 am
MCI
- SEA
Nonstop4h 05m
Alaska Airlines
Deal found 7/17![Alaska Airlines logo]()
$372
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.
Mon 8/313:54 pm
SEA
- SGF
1 stop5h 48m
United Airlines
Mon 9/75:30 am
SGF
- SEA
1 stop8h 14m
United Airlines
Deal found 7/17![United Airlines logo]()
$415
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.
Thu 9/245:40 pm
SEA
- MCI
Nonstop3h 36m
Delta
Sun 9/275:30 pm
MCI
- SEA
1 stop8h 29m
Delta
Deal found 7/14![Delta logo]()
$362
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.
Fri 9/251:35 pm
PDX
- MCI
1 stop5h 50m
Southwest
Mon 9/2811:10 am
MCI
- PDX
2 stops10h 05m
Southwest
Deal found 7/13![Southwest logo]()
$334
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 9/2511:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Sun 9/276:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$377
Last-minute flights from Washington to MissouriDiscover last-minute flight deals from Washington to Missouri. Data last updated July 17, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Missouri. Data last updated July 17, 2026 and is based on user searches.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Fri 8/78:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 7/13![Frontier logo]()
$259
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Mon 8/38:08 pm
STL
- PDX
1 stop22h 23m
Frontier
Deal found 7/15![Frontier logo]()
$268
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:30 pm
PDX
- MCI
2 stops8h 40m
Southwest
Wed 8/1911:45 am
MCI
- PDX
2 stops8h 05m
Southwest
Deal found 7/15![Southwest logo]()
$267
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.
Thu 8/136:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Thu 8/206:45 pm
STL
- PDX
1 stop24h 36m
Frontier
Deal found 7/16![Frontier logo]()
$253
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:40 pm
PDX
- MCI
1 stop9h 05m
Southwest
Thu 8/207:00 pm
MCI
- PDX
1 stop6h 40m
Southwest
Deal found 7/16![Southwest logo]()
$257
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:00 am
PDX
- MCI
2 stops7h 30m
Southwest
Mon 8/173:45 pm
MCI
- PDX
1 stop9h 20m
Southwest
Deal found 7/15![Southwest logo]()
$262
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.
Wed 8/195:56 pm
PDX
- MCI
1 stop17h 24m
Frontier
Mon 8/241:38 pm
MCI
- PDX
1 stop29h 33m
Frontier
Deal found 7/13![Frontier logo]()
$238
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Mon 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Deal found 7/15![Frontier logo]()
$250
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:40 am
PDX
- MCI
Nonstop3h 20m
Southwest
Sat 8/291:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/15![Southwest logo]()
$237
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Thu 8/277:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Deal found 7/16![Frontier logo]()
$240
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:20 pm
PDX
- MCI
1 stop22h 33m
Frontier
Sat 9/51:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 7/17![Frontier logo]()
$251
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Wed 9/26:45 pm
STL
- PDX
1 stop20h 07m
Frontier
Deal found 7/14![Frontier logo]()
$249
One-way flights from Washington to MissouriSearch for one-way flight options from Washington to Missouri. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
Search for one-way flight options from Washington to Missouri. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
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 8/197:06 pm
SEA
- MCI
1 stop16h 14m
Frontier
Deal found 7/14![Frontier logo]()
$75
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.
Wed 9/167:00 am
SEA
- MCI
1 stop28h 22m
Frontier
Deal found 7/13![Frontier logo]()
$77
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 9/237:00 am
SEA
- MCI
1 stop28h 22m
Frontier
Deal found 7/14![Frontier logo]()
$78
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:41 pm
SEA
- MCI
1 stop15h 41m
Frontier
Deal found 7/15![Frontier logo]()
$85
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 9/287:00 am
SEA
- MCI
1 stop28h 22m
Frontier
Deal found 7/15![Frontier logo]()
$88
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:06 pm
SEA
- MCI
1 stop15h 47m
Frontier
Deal found 7/15![Frontier logo]()
$91
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:06 pm
SEA
- MCI
1 stop15h 47m
Frontier
Deal found 7/14![Frontier logo]()
$92
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.
Fri 8/287:06 pm
SEA
- MCI
1 stop15h 47m
Frontier
Deal found 7/14![Frontier logo]()
$93
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 8/217:06 pm
SEA
- MCI
1 stop15h 47m
Frontier
Deal found 7/15![Frontier logo]()
$94
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.
Tue 10/139:43 am
SEA
- STL
1 stop5h 51m
Delta
Deal found 7/14![Delta logo]()
$94
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.
Sun 9/207:41 pm
SEA
- MCI
1 stop15h 41m
Frontier
Deal found 7/14![Frontier logo]()
$95
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.
Sat 8/225:00 am
SEA
- STL
1 stop13h 20m
Southwest
Deal found 7/14![Southwest logo]()
$99
Find flight deals from Washington to Missouri
Keep the following information in mind while searching for Washington to Missouri flight deals. Data was last updated July 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $225 (Kiwi.com) |
One-way from | $75 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $397 |
Good round-trip deal | $377 or less |
Good one-way deal | $254 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Missouri 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 17, 2026.
Use the filters below to find and compare flights from Washington to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Sat 8/29
8:00 am-7:10 pm
1 stop9h 10m
Kansas City
Sat 9/5
1:35 pm-3:10 pm
Nonstop3h 35m
$247
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 8/13
6:05 am-3:05 pm
1 stop7h 00m
Kansas City
Thu 8/20
7:00 pm-11:05 pm
1 stop6h 05m
$257
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Mon 9/21
11:30 pm-8:40 am
1 stop7h 10m
Kansas City
Wed 9/23
11:45 am-5:50 pm
2 stops8h 05m
$292
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Wed 8/12
11:35 am-10:20 pm
2 stops8h 45m
Kansas City
Fri 8/14
7:00 pm-11:40 pm
1 stop6h 40m
$298
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Wed 9/9
6:20 am-2:21 pm
1 stop6h 01m
Lambert-St Louis
Wed 9/23
6:08 pm-8:20 pm
Nonstop4h 12m
$307
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 8/20
7:16 am-3:38 pm
1 stop6h 22m
Lambert-St Louis
Sun 8/23
6:59 pm-10:54 pm
1 stop5h 55m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Fri 9/4
3:00 pm-11:26 pm
1 stop6h 26m
Lambert-St Louis
Mon 9/7
3:39 pm-9:50 pm
1 stop8h 11m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Sat 8/22
11:20 am-10:00 pm
1 stop8h 40m
Lambert-St Louis
Sat 8/29
8:25 am-5:40 pm
2 stops11h 15m
$322
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Fri 9/4
3:25 pm-11:02 pm
1 stop5h 37m
Kansas City
Wed 9/9
7:00 am-12:15 pm
1 stop7h 15m
$323
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Mon 8/24
6:15 am-4:20 pm
1 stop8h 05m
Lambert-St Louis
Wed 8/26
12:20 pm-7:50 pm
2 stops9h 30m
$323
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Washington with our price prediction graph.
SEA-MCI
SEA-STL
PDX-MCI
PDX-STL
GEG-STL
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 Washington to Missouri
USWA-USMO
SEA-MCI
SEA-STL
PDX-MCI
PDX-STL
What is the cheapest month to book a flight from State of Washington to Missouri?
Currently, January is the cheapest month in which you can book a flight from State of Washington to Missouri (average of $319). Flying from State of Washington to Missouri in July is currently the most expensive (average of $499). 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 WA to MO?
Find hourly flight availability from Washington to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 17, 2026.
When flying from State of Washington to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from State of Washington to Missouri
Explore weekly flight availability from Washington to Missouri. 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 17, 2026.
The most flights from USWA to USMO are scheduled on a Wednesday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from State of Washington to Missouri?
How far ahead should I book a flight from State of Washington to Missouri?
The best time to book flights from State of Washington to Missouri is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Missouri
Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated July 17, 2026.
Read through reviews of airlines operating flights from Washington to Missouri, such as Southwest,Alaska Airlines, andDelta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Washington to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Washington to Missouri
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Missouri by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington to Missouri by cabin class
Find flights from Washington to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Missouri flights
Browse other Washington and Missouri flight options. Last updated on July 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Missouri
Find the right flight back to Washington after your stay in Missouri
Washington to Missouri flights
Consider these flights traveling from Washington to Missouri.
Top 7 airlines flying from Washington to Missouri
Discover the top 7 airlines that operate flights from Washington to Missouri. 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$104 | Average$397 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$135 | Average$270 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$359 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$158 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$169 | Average$451 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$188 | Average$513 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$199 | Average$489 | FlexibilityNo cancel fee | On-time75% |