$113+ Cheap flights from Missouri to Oregon
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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — PDX
Aug 19 — Aug 261
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to OregonExplore the most affordable flight options available from Missouri to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
Explore the most affordable flight options available from Missouri to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
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 8/311:38 pm
MCI
- BOI
1 stop23h 51m
Frontier
Tue 9/81:24 pm
BOI
- MCI
1 stop22h 58m
Frontier
Deal found 7/17![Frontier logo]()
$200
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 9/142:17 pm
MCI
- BOI
1 stop22h 47m
Frontier
Mon 9/213:52 pm
BOI
- MCI
2 stops20h 30m
Frontier
Deal found 7/15![Frontier logo]()
$228
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Mon 10/59:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Deal found 7/15![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Wed 9/25:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/16![Frontier logo]()
$242
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.
Fri 9/2512:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Wed 9/303:22 pm
PDX
- STL
1 stop25h 53m
Frontier
Deal found 7/17![Frontier logo]()
$249
This CheapOair deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” 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 8/128:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Wed 8/195:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/20![Frontier logo]()
$250
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 8/277:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Wed 9/25:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/16![Frontier logo]()
$253
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 9/142:17 pm
MCI
- BOI
1 stop22h 47m
Frontier
Sun 9/203:52 pm
BOI
- MCI
2 stops20h 30m
Frontier
Deal found 7/15![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 9/148:10 pm
STL
- PDX
1 stop20h 17m
Frontier
Sat 9/193:22 pm
PDX
- STL
2 stops16h 18m
Frontier
Deal found 7/18![Frontier logo]()
$258
This CheapOair deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/67:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/19![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Sun 8/161:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 7/15![Frontier logo]()
$262
This Trip.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- PDX
1 stop23h 03m
Frontier
Mon 8/246:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Deal found 7/18![Frontier logo]()
$263
Best flights from Missouri to OregonDiscover carefully curated flight deals from Missouri to Oregon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
Discover carefully curated flight deals from Missouri to Oregon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 9/126:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 9/1911:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$297
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.
Sat 8/228:30 am
STL
- PDX
Nonstop4h 10m
Southwest
Sat 8/2911:30 pm
PDX
- STL
1 stop7h 45m
Southwest
Deal found 7/16![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 11/244:40 pm
STL
- PDX
1 stop7h 46m
Delta
Tue 12/15:05 pm
PDX
- STL
1 stop5h 31m
Delta
Deal found 7/19![Delta logo]()
$319
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 8/296:00 am
STL
- PDX
2 stops9h 14m
United Airlines
Sun 9/65:00 am
PDX
- STL
1 stop5h 40m
United Airlines
Deal found 7/15![United Airlines logo]()
$323
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:26 pm
SGF
- BOI
2 stops9h 14m
American Airlines
Sat 8/298:01 am
BOI
- SGF
2 stops11h 42m
American Airlines
Deal found 7/17![American Airlines logo]()
$374
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.
Tue 9/812:20 pm
STL
- PDX
1 stop7h 25m
Southwest
Sat 9/1210:45 pm
PDX
- STL
1 stop11h 05m
Southwest
Deal found 7/15![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 11/122:15 pm
STL
- PDX
1 stop6h 02m
Delta
Sun 11/152:30 pm
PDX
- STL
1 stop7h 09m
Delta
Deal found 7/19![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:30 am
SGF
- BOI
1 stop5h 04m
United Airlines
Sat 10/35:30 pm
BOI
- SGF
1 stop5h 12m
United Airlines
Deal found 7/15![United Airlines logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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.
Mon 9/211:34 pm
MCI
- PDX
1 stop8h 16m
Alaska Airlines
Sat 9/267:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$337
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.
Tue 9/812:20 pm
STL
- PDX
1 stop7h 25m
Southwest
Fri 9/1111:35 am
PDX
- STL
1 stop8h 30m
Southwest
Deal found 7/17![Southwest logo]()
$318
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.
Mon 9/76:28 am
MCI
- PDX
1 stop9h 10m
Delta
Thu 9/106:10 am
PDX
- MCI
1 stop6h 34m
Delta
Deal found 7/15![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/291:37 pm
SGF
- BOI
1 stop5h 21m
United Airlines
Sat 9/52:44 pm
BOI
- SGF
1 stop7h 58m
United Airlines
Deal found 7/19![United Airlines 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.
Tue 8/117:58 pm
MCI
- EUG
1 stop6h 01m
Alaska Airlines
Mon 8/175:43 pm
EUG
- MCI
1 stop17h 38m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/187:35 am
STL
- PDX
1 stop6h 50m
Southwest
Tue 8/251:05 pm
PDX
- STL
1 stop7h 40m
Southwest
Deal found 7/19![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:27 am
STL
- BOI
1 stop8h 04m
American Airlines
Tue 9/291:52 pm
BOI
- STL
2 stops9h 35m
American Airlines
Deal found 7/19![American Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 9/245:30 am
SGF
- BOI
1 stop5h 04m
United Airlines
Mon 9/285:30 pm
BOI
- SGF
1 stop5h 12m
United Airlines
Deal found 7/19![United Airlines logo]()
$350
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.
Thu 8/136:01 pm
MCI
- EUG
2 stops7h 58m
Delta
Tue 8/184:43 pm
EUG
- MCI
1 stop5h 30m
Delta
Deal found 7/15![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/257:00 am
MCI
- BOI
2 stops14h 20m
Alaska Airlines
Tue 9/12:17 pm
BOI
- MCI
1 stop8h 42m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/176:05 am
STL
- PDX
2 stops10h 55m
Southwest
Mon 8/243:25 pm
PDX
- STL
1 stop6h 25m
Southwest
Deal found 7/18![Southwest logo]()
$324
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.
Wed 9/26:00 am
MCI
- PDX
2 stops8h 00m
United Airlines
Wed 9/95:00 am
PDX
- MCI
1 stop5h 38m
United Airlines
Deal found 7/15![United Airlines logo]()
$352
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:48 am
MCI
- RDM
2 stops11h 41m
American Airlines
Tue 10/273:00 pm
RDM
- MCI
1 stop6h 54m
American Airlines
Deal found 7/17![American Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 9/243:19 pm
SGF
- PDX
1 stop8h 28m
Delta
Sun 9/2711:10 pm
PDX
- SGF
2 stops13h 24m
Delta
Deal found 7/19![Delta logo]()
$354
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.
Tue 10/277:00 am
STL
- BOI
1 stop8h 11m
Alaska Airlines
Wed 10/284:19 pm
BOI
- STL
1 stop6h 40m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$363
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.
Mon 8/39:15 pm
MCI
- PDX
1 stop6h 10m
Southwest
Sat 8/86:20 am
PDX
- MCI
2 stops8h 55m
Southwest
Deal found 7/15![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am
MCI
- PDX
2 stops8h 00m
United Airlines
Wed 9/3012:57 pm
PDX
- MCI
1 stop7h 38m
United Airlines
Deal found 7/17![United Airlines logo]()
$352
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.
Sat 8/155:00 pm
STL
- BOI
1 stop6h 46m
Delta
Tue 8/186:45 pm
BOI
- STL
1 stop4h 56m
Delta
Deal found 7/16![Delta logo]()
$363
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.
Mon 9/212:53 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Fri 9/255:07 am
PDX
- MCI
1 stop6h 50m
Alaska Airlines
Deal found 7/15![Alaska Airlines logo]()
$367
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 10/165:20 am
MCI
- PDX
2 stops9h 15m
Southwest
Tue 10/205:45 am
PDX
- MCI
2 stops9h 30m
Southwest
Deal found 7/15![Southwest logo]()
$342
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.
Wed 9/165:30 am
SGF
- PDX
1 stop6h 03m
United Airlines
Sun 9/2011:02 pm
PDX
- SGF
1 stop9h 48m
United Airlines
Deal found 7/15![United Airlines logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/227:00 am
MCI
- BOI
1 stop8h 22m
Alaska Airlines
Wed 8/262:17 pm
BOI
- MCI
1 stop8h 42m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$375
Last-minute flights from Missouri to OregonDiscover last-minute flight deals from Missouri to Oregon. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Oregon. Data last updated July 20, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/67:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/19![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/67:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/105:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Deal found 7/19![Frontier logo]()
$278
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 8/67:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Thu 8/136:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Deal found 7/16![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” 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 8/128:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Wed 8/195:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/20![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Sun 8/161:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 7/15![Frontier logo]()
$262
This Trip.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- PDX
1 stop23h 03m
Frontier
Mon 8/246:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Deal found 7/18![Frontier logo]()
$263
This Trip.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” 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.
Sat 8/226:08 pm
STL
- PDX
Nonstop4h 12m
Multiple Airlines
Sat 8/2912:20 pm
PDX
- STL
1 stop28h 53m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Wed 9/25:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/16![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Fri 9/412:20 pm
PDX
- STL
2 stops51h 02m
Frontier
Deal found 7/16![Frontier logo]()
$272
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 8/277:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Wed 9/25:56 pm
PDX
- STL
1 stop23h 17m
Frontier
Deal found 7/16![Frontier logo]()
$253
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Mon 8/316:17 pm
PDX
- STL
1 stop21h 33m
Frontier
Deal found 7/17![Frontier logo]()
$269
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 8/311:38 pm
MCI
- BOI
1 stop23h 51m
Frontier
Tue 9/81:24 pm
BOI
- MCI
1 stop22h 58m
Frontier
Deal found 7/17![Frontier logo]()
$200
One-way flights from Missouri to OregonSearch for one-way flight options from Missouri to Oregon. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Missouri to Oregon. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
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 10/192:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/17![Frontier logo]()
$113
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 9/142:17 pm
MCI
- PDX
1 stop26h 10m
Frontier
Deal found 7/15![Frontier logo]()
$116
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.
Sun 8/168:00 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/17![Southwest logo]()
$119
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 7/15![Frontier logo]()
$120
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:20 am
MCI
- PDX
1 stop7h 39m
United Airlines
Deal found 7/16![United Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:10 pm
STL
- PDX
1 stop22h 25m
Frontier
Deal found 7/16![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/211:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 7/19![Frontier logo]()
$125
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.
Tue 10/138:10 pm
STL
- PDX
1 stop22h 25m
Frontier
Deal found 7/16![Frontier logo]()
$126
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.
Sat 9/122:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/15![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/18![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 9/1510:35 am
STL
- PDX
2 stops29h 52m
Frontier
Deal found 7/19![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/17![Frontier logo]()
$128
Find flight deals from Missouri to Oregon
Keep the following information in mind while searching for Missouri to Oregon flight deals. Data was last updated July 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $200 (Kiwi.com) |
One-way from | $113 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $443 |
Good round-trip deal | $371 or less |
Good one-way deal | $178 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Oregon 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 20, 2026.
Use the filters below to find and compare flights from Missouri to Oregon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/12
6:08 pm-8:20 pm
Nonstop4h 12m
Portland
Sat 9/19
11:16 am-5:10 pm
Nonstop3h 54m
$297
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 8/22
8:30 am-10:40 am
Nonstop4h 10m
Portland
Sat 8/29
11:30 pm-9:15 am
1 stop7h 45m
$307
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 9/8
12:20 pm-5:45 pm
1 stop7h 25m
Portland
Sat 9/12
10:45 pm-11:50 am
1 stop11h 05m
$317
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 9/8
12:20 pm-5:45 pm
1 stop7h 25m
Portland
Fri 9/11
11:35 am-10:05 pm
1 stop8h 30m
$318
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 8/18
7:35 am-12:25 pm
1 stop6h 50m
Portland
Tue 8/25
1:05 pm-10:45 pm
1 stop7h 40m
$318
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 11/24
4:40 pm-10:26 pm
1 stop7h 46m
Portland
Tue 12/1
5:05 pm-12:36 am
1 stop5h 31m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 11/12
2:15 pm-6:17 pm
1 stop6h 02m
Portland
Sun 11/15
2:30 pm-11:39 pm
1 stop7h 09m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 8/29
6:00 am-1:14 pm
2 stops9h 14m
Portland
Sun 9/6
5:00 am-12:40 pm
1 stop5h 40m
$323
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Mon 8/17
6:05 am-3:00 pm
2 stops10h 55m
Portland
Mon 8/24
3:25 pm-11:50 pm
1 stop6h 25m
$324
SpringfieldBoise
SGF - BOI
SGFBOI
Springfield-Branson
Mon 9/28
5:30 am-9:34 am
1 stop5h 04m
Boise Air Term. Gowen Fld
Sat 10/3
5:30 pm-11:42 pm
1 stop5h 12m
$329
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Oregon
Have a flexible travel schedule? Discover the best time to fly to Oregon from Missouri with our price prediction graph.
MCI-BOI
STL-PDX
MCI-PDX
SGF-PDX
STL-RDM
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 Oregon
USMO-USOR
MCI-BOI
STL-PDX
MCI-PDX
SGF-PDX
What is the cheapest month to book a flight from Missouri to Oregon?
Currently, February is the cheapest month in which you can book a flight from Missouri to Oregon (average of $248). Flying from Missouri to Oregon in June is currently the most expensive (average of $467). 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 OR?
Find hourly flight availability from Missouri to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 20, 2026.
A simple way to save on the total cost of your ticket is to fly from Missouri to Oregon in the afternoon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.
Weekly flight availability from Missouri to Oregon
Explore weekly flight availability from Missouri to Oregon. 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 20, 2026.
The most flights from USMO to USOR are scheduled on a Sunday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Missouri to Oregon?
How far ahead should I book a flight from Missouri to Oregon?
To ensure you get the cheapest price possible for a flight from Missouri to Oregon, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Oregon
Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated July 20, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Missouri to Oregon by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Related info for your journey
Find useful and relevant information for your journey from Missouri to Oregon. 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 Missouri to Oregon
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Oregon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Oregon by cabin class
Find flights from Missouri to Oregon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Oregon flights
Browse other Missouri and Oregon flight options. Last updated on July 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Oregon
Find the right flight back to Missouri after your stay in Oregon
Missouri to Oregon flights
Consider these flights traveling from Missouri to Oregon.
Top 7 airlines flying from Missouri to Oregon
Discover the top 7 airlines that operate flights from Missouri to Oregon. 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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$167 | Average$261 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$466 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$182 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$186 | Average$414 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$438 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$474 | FlexibilityNo cancel fee | On-time69% |