$123+ Cheap flights from Oregon 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MCI
Jul 27 — Aug 31
Round-trip
1 adult, Economy
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1. Tell us where you want to go
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Cheapest flights from Oregon to MissouriExplore the most affordable flight options available from Oregon to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
Explore the most affordable flight options available from Oregon to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
This Frontier deal was found by Cheapflights users on 6/24. 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 Frontier 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 9/1312:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 6/24![Frontier logo]()
$240
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Thu 7/306:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Fri 8/78:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/24![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 6/25. 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.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Fri 7/178:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/25![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 6/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Thu 7/98:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/22![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 6/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Mon 9/2112:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 6/24![Frontier logo]()
$276
This CheapOair deal was found by Cheapflights users on 6/25. 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.
Thu 8/131:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Mon 8/178:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 6/25![Frontier logo]()
$284
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Fri 7/175:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Wed 7/228:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/23![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Fri 8/286:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Mon 8/317:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Deal found 6/23![Frontier logo]()
$286
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Fri 8/286:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Sun 8/307:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Deal found 6/24![Frontier logo]()
$289
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Wed 7/158:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/23![Frontier logo]()
$294
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Tue 7/145:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/24![Frontier logo]()
$298
This Frontier deal was found by Cheapflights users on 6/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Thu 10/112:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 6/24![Frontier logo]()
$305
Best flights from Oregon to MissouriDiscover carefully curated flight deals from Oregon to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
Discover carefully curated flight deals from Oregon to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
This Southwest deal was found by Cheapflights users on 6/26. 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.
Sat 8/1511:30 pm
PDX
- STL
1 stop7h 45m
Southwest
Sun 8/237:30 pm
STL
- PDX
1 stop6h 00m
Southwest
Deal found 6/26![Southwest logo]()
$319
This Delta deal was found by Cheapflights users on 6/24. 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.
Fri 11/62:30 pm
PDX
- STL
1 stop7h 09m
Delta
Mon 11/97:55 pm
STL
- PDX
1 stop5h 56m
Delta
Deal found 6/24![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 8/2510:50 am
PDX
- STL
2 stops9h 10m
United Airlines
Thu 8/276:59 pm
STL
- PDX
1 stop5h 55m
United Airlines
Deal found 6/26![United Airlines logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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.
Thu 9/35:07 am
PDX
- MCI
1 stop6h 45m
Alaska Airlines
Tue 9/82:53 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 8/221:55 pm
BOI
- MCI
1 stop8h 49m
American Airlines
Sat 8/296:20 am
MCI
- BOI
2 stops8h 04m
American Airlines
Deal found 6/22![American Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 6/25. 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.
Wed 10/2810:55 pm
PDX
- SGF
2 stops13h 55m
Delta
Sat 10/316:00 am
SGF
- PDX
2 stops12h 27m
Delta
Deal found 6/25![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Mon 7/2011:40 pm
PDX
- MCI
1 stop7h 02m
United Airlines
Mon 7/277:59 pm
MCI
- PDX
1 stop6h 51m
United Airlines
Deal found 6/22![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 6/26. 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.
Fri 10/95:00 am
PDX
- MCI
1 stop6h 20m
Southwest
Sun 10/118:50 pm
MCI
- PDX
1 stop6h 20m
Southwest
Deal found 6/26![Southwest logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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.
Sat 8/297:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Wed 9/27:00 am
MCI
- PDX
1 stop6h 13m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 6/24. 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.
Tue 7/143:30 pm
PDX
- MCI
1 stop5h 30m
Delta
Tue 7/212:55 pm
MCI
- PDX
1 stop5h 23m
Delta
Deal found 6/24![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/23. 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.
Wed 7/295:25 am
PDX
- STL
2 stops10h 50m
Southwest
Tue 8/412:20 pm
STL
- PDX
2 stops9h 30m
Southwest
Deal found 6/23![Southwest logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:50 pm
BOI
- STL
1 stop8h 53m
American Airlines
Tue 9/157:27 am
STL
- BOI
1 stop8h 04m
American Airlines
Deal found 6/25![American Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 9/295:30 pm
BOI
- SGF
1 stop5h 12m
United Airlines
Tue 10/205:30 am
SGF
- BOI
2 stops8h 28m
United Airlines
Deal found 6/22![United Airlines logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 8/254:20 pm
BOI
- MCI
1 stop6h 39m
Alaska Airlines
Wed 8/267:00 am
MCI
- BOI
1 stop8h 22m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:00 pm
PDX
- MCI
1 stop8h 08m
Delta
Tue 12/17:40 pm
MCI
- PDX
1 stop6h 11m
Delta
Deal found 6/22![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/24. 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.
Sun 8/236:45 am
PDX
- MCI
1 stop8h 50m
Southwest
Sat 8/2911:35 am
MCI
- PDX
2 stops8h 05m
Southwest
Deal found 6/24![Southwest logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:23 am
BOI
- MCI
1 stop6h 29m
Alaska Airlines
Sat 8/297:00 am
MCI
- BOI
1 stop6h 36m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:30 am
BOI
- MCI
2 stops10h 00m
United Airlines
Tue 8/256:00 am
MCI
- BOI
1 stop4h 35m
United Airlines
Deal found 6/24![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 6/24. 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.
Tue 8/186:00 am
BOI
- MCI
1 stop7h 45m
Southwest
Tue 8/256:55 am
MCI
- BOI
1 stop7h 45m
Southwest
Deal found 6/24![Southwest logo]()
$347
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Fri 7/313:10 pm
BOI
- STL
1 stop8h 06m
American Airlines
Tue 8/49:44 am
STL
- BOI
2 stops8h 05m
American Airlines
Deal found 6/24![American Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 6/27. 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.
Tue 10/204:44 pm
EUG
- STL
1 stop5h 50m
Delta
Tue 10/277:00 pm
STL
- EUG
1 stop6h 49m
Delta
Deal found 6/27![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 7/225:00 am
EUG
- MCI
1 stop5h 38m
United Airlines
Tue 7/281:40 pm
MCI
- EUG
2 stops11h 31m
United Airlines
Deal found 6/26![United Airlines logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 9/96:23 am
BOI
- STL
1 stop6h 58m
Alaska Airlines
Tue 9/156:29 am
STL
- BOI
1 stop7h 06m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 6/26. 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.
Wed 7/89:45 am
PDX
- MCI
1 stop5h 20m
Delta
Fri 7/104:04 pm
MCI
- PDX
1 stop6h 11m
Delta
Deal found 6/26![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 6/23. 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.
Tue 8/2511:35 am
PDX
- STL
2 stops7h 35m
Southwest
Thu 8/276:15 pm
STL
- PDX
1 stop6h 50m
Southwest
Deal found 6/23![Southwest logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 9/296:20 am
PDX
- STL
1 stop6h 01m
Alaska Airlines
Wed 9/306:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 6/26. 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.
Fri 8/712:40 pm
PDX
- MCI
2 stops9h 30m
Southwest
Sun 8/95:50 am
MCI
- PDX
1 stop7h 15m
Southwest
Deal found 6/26![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 9/2312:28 pm
BOI
- SGF
1 stop8h 34m
United Airlines
Wed 9/305:30 am
SGF
- BOI
1 stop5h 04m
United Airlines
Deal found 6/26![United Airlines logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:30 am
PDX
- MCI
Nonstop3h 23m
Alaska Airlines
Sun 8/232:48 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 6/23. 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.
Tue 8/44:43 pm
EUG
- STL
1 stop5h 58m
Delta
Tue 8/117:45 pm
STL
- EUG
1 stop6h 01m
Delta
Deal found 6/23![Delta logo]()
$377
Last-minute flights from Oregon to MissouriDiscover last-minute flight deals from Oregon to Missouri. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Oregon to Missouri. Data last updated June 27, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Tue 6/305:20 pm
PDX
- STL
1 stop24h 03m
Frontier
Tue 7/78:08 pm
STL
- PDX
1 stop22h 28m
Frontier
Deal found 6/23![Frontier logo]()
$311
This CheapOair deal was found by Cheapflights users on 6/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Thu 7/98:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/22![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Thu 7/91:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Wed 7/158:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 6/23![Frontier logo]()
$306
This CheapOair deal was found by Cheapflights users on 6/25. 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.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Fri 7/178:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/25![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Wed 7/158:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/23![Frontier logo]()
$294
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Tue 7/145:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/23![Frontier logo]()
$289
This CheapOair deal was found by Cheapflights users on 6/27. 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.
Tue 7/145:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Sat 7/188:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/27![Frontier logo]()
$323
This CheapOair deal was found by Cheapflights users on 6/23. 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.
Fri 7/175:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Wed 7/228:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/23![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/237:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/26![Frontier logo]()
$314
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Mon 7/2711:15 pm
PDX
- STL
1 stop7h 16m
American Airlines
Fri 7/317:56 pm
STL
- PDX
1 stop6h 54m
American Airlines
Deal found 6/24![American Airlines logo]()
$319
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Thu 7/306:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Fri 8/78:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/24![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Thu 7/306:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Tue 8/48:08 pm
STL
- PDX
1 stop22h 28m
Frontier
Deal found 6/24![Frontier logo]()
$315
One-way flights from Oregon to MissouriSearch for one-way flight options from Oregon to Missouri. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
Search for one-way flight options from Oregon to Missouri. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:34 pm
PDX
- STL
1 stop28h 41m
Frontier
Deal found 6/26![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 6/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Deal found 6/25![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 6/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 6/24![Frontier logo]()
$129
This Trip.com deal was found by Cheapflights users on 6/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 6/25![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Fri 7/315:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 6/24![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Deal found 6/23![Frontier logo]()
$134
This Mytrip deal was found by Cheapflights users on 6/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/22![Frontier logo]()
$135
This Booking.com deal was found by Cheapflights users on 6/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 6/22![Frontier logo]()
$136
This Trip.com deal was found by Cheapflights users on 6/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:49 pm
PDX
- MCI
1 stop18h 58m
Frontier
Deal found 6/26![Frontier logo]()
$138
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:21 pm
PDX
- MCI
1 stop17h 39m
Frontier
Deal found 6/27![Frontier logo]()
$139
This Trip.com deal was found by Cheapflights users on 6/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:26 pm
PDX
- MCI
1 stop22h 34m
Frontier
Deal found 6/25![Frontier logo]()
$140
This CheapOair deal was found by Cheapflights users on 6/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 6/22![Frontier logo]()
$140
Find flight deals from Oregon to Missouri
Keep the following information in mind while searching for Oregon to Missouri flight deals. Data was last updated June 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $240 (Frontier) |
One-way from | $123 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $401 |
Good round-trip deal | $377 or less |
Good one-way deal | $229 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Oregon 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 June 27, 2026.
Use the filters below to find and compare flights from Oregon to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Sat 8/15
11:30 pm-9:15 am
1 stop7h 45m
Lambert-St Louis
Sun 8/23
7:30 pm-11:30 pm
1 stop6h 00m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Fri 11/6
2:30 pm-11:39 pm
1 stop7h 09m
Lambert-St Louis
Mon 11/9
7:55 pm-11:51 pm
1 stop5h 56m
$319
PortlandSpringfield
PDX - SGF
PDXSGF
Portland
Wed 10/28
10:55 pm-2:50 pm
2 stops13h 55m
Springfield-Branson
Sat 10/31
6:00 am-4:27 pm
2 stops12h 27m
$323
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 8/25
10:50 am-10:00 pm
2 stops9h 10m
Lambert-St Louis
Thu 8/27
6:59 pm-10:54 pm
1 stop5h 55m
$324
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Mon 7/20
11:40 pm-8:42 am
1 stop7h 02m
Kansas City
Mon 7/27
7:59 pm-12:50 am
1 stop6h 51m
$329
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Fri 10/9
5:00 am-1:20 pm
1 stop6h 20m
Kansas City
Sun 10/11
8:50 pm-1:10 am
1 stop6h 20m
$329
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Tue 7/14
3:30 pm-11:00 pm
1 stop5h 30m
Kansas City
Tue 7/21
2:55 pm-6:18 pm
1 stop5h 23m
$329
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Wed 7/29
5:25 am-6:15 pm
2 stops10h 50m
Lambert-St Louis
Tue 8/4
12:20 pm-7:50 pm
2 stops9h 30m
$329
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 11/19
1:00 pm-11:08 pm
1 stop8h 08m
Kansas City
Tue 12/1
7:40 pm-11:51 pm
1 stop6h 11m
$329
BoiseSpringfield
BOI - SGF
BOISGF
Boise Air Term. Gowen Fld
Tue 9/29
5:30 pm-11:42 pm
1 stop5h 12m
Springfield-Branson
Tue 10/20
5:30 am-12:58 pm
2 stops8h 28m
$334
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Oregon to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Oregon with our price prediction graph.
PDX-STL
PDX-MCI
BOI-MCI
PDX-SGF
BOI-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 Oregon to Missouri
USOR-USMO
PDX-STL
PDX-MCI
BOI-MCI
PDX-SGF
What is the cheapest month to book a flight from Oregon to Missouri?
Currently, December is the cheapest month in which you can book a flight from Oregon to Missouri (average of $75). Flying from Oregon to Missouri in January is currently the most expensive (average of $169). 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 OR to MO?
Find hourly flight availability from Oregon 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 June 27, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Missouri as you normally would.
How much does it cost to fly round-trip from Oregon to Missouri?
How far ahead should I book a flight from Oregon to Missouri?
The price you pay for your flight from Oregon to Missouri may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 June 27, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta from Oregon to Missouri. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Oregon 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 Oregon 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 Oregon to Missouri by cabin class
Find flights from Oregon to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Oregon and Missouri flights
Browse other Oregon and Missouri flight options. Last updated on June 27, 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 Oregon after your stay in Missouri
Oregon to Missouri flights
Consider these flights traveling from Oregon to Missouri.
Top 7 airlines flying from Oregon to Missouri
Discover the top 7 airlines that operate flights from Oregon 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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$287 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$292 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$177 | Average$424 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$196 | Average$425 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$199 | Average$507 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$393 | FlexibilityNo cancel fee | On-time71% |