$115+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — PDX
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 June 21, 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 June 21, 2026.
This Frontier deal was found by Cheapflights users on 6/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Tue 8/111:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 6/16![Frontier logo]()
$239
This Booking.com deal was found by Cheapflights users on 6/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Tue 7/211:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 6/17![Frontier logo]()
$242
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Sun 8/912:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/18![Frontier logo]()
$260
This CheapOair deal was found by Cheapflights users on 6/17. 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.
Thu 7/234:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Tue 7/285:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 6/17![Frontier logo]()
$269
This Priceline deal was found by Cheapflights users on 6/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:38 pm
MCI
- PDX
1 stop5h 33m
Multiple Airlines
Wed 9/97:03 am
PDX
- MCI
Nonstop3h 35m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$274
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:03 pm
STL
- PDX
1 stop25h 01m
Frontier
Wed 8/125:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 6/18![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Thu 9/103:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/18![Frontier logo]()
$278
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/61:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Sat 7/2512:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/18![Frontier logo]()
$283
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:46 pm
STL
- BOI
1 stop27h 11m
Frontier
Mon 9/143:52 pm
BOI
- STL
1 stop18h 59m
Frontier
Deal found 6/18![Frontier logo]()
$284
This CheapOair deal was found by Cheapflights users on 6/19. 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.
Wed 7/298:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Mon 8/35:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Deal found 6/19![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Mon 8/105:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Deal found 6/18![Frontier logo]()
$286
This CheapOair deal was found by Cheapflights users on 6/20. 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 7/298:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Sun 8/21:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/20![Frontier logo]()
$286
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 June 21, 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 June 21, 2026.
This CheapOair deal was found by Cheapflights users on 6/20. 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 7/298:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Sun 8/21:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/20![Frontier logo]()
$286
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:45 pm
STL
- PDX
1 stop5h 54m
Delta
Fri 9/111:27 pm
PDX
- STL
1 stop6h 04m
Delta
Deal found 6/17![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 6/17. 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 7/216:55 pm
STL
- PDX
1 stop7h 00m
Southwest
Tue 7/285:50 am
PDX
- STL
2 stops9h 55m
Southwest
Deal found 6/17![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:12 pm
MCI
- PDX
Nonstop3h 58m
Alaska Airlines
Wed 10/711:52 am
PDX
- MCI
Nonstop3h 26m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:26 pm
COU
- PDX
1 stop7h 29m
American Airlines
Wed 7/2911:15 pm
PDX
- COU
1 stop8h 46m
American Airlines
Deal found 6/16![American Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:12 pm
COU
- PDX
1 stop9h 40m
United Airlines
Wed 8/262:27 pm
PDX
- COU
1 stop6h 28m
United Airlines
Deal found 6/17![United Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 6/16. 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 7/77:55 pm
STL
- PDX
1 stop5h 49m
Delta
Tue 7/145:14 pm
PDX
- STL
1 stop5h 27m
Delta
Deal found 6/16![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:35 pm
MCI
- PDX
1 stop7h 15m
Southwest
Mon 8/106:25 am
PDX
- MCI
1 stop8h 30m
Southwest
Deal found 6/20![Southwest logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
Sat 9/126:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 9/1911:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/1211:17 am
COU
- PDX
1 stop10h 01m
United Airlines
Fri 9/1811:02 pm
PDX
- COU
1 stop9h 36m
United Airlines
Deal found 6/21![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:45 pm
SGF
- PDX
1 stop10h 22m
American Airlines
Fri 9/2511:08 pm
PDX
- SGF
1 stop9h 00m
American Airlines
Deal found 6/16![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:00 pm
STL
- PDX
1 stop7h 33m
Delta
Fri 9/1812:25 am
PDX
- STL
1 stop8h 09m
Delta
Deal found 6/20![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:30 am
STL
- PDX
Nonstop4h 10m
Southwest
Sat 8/156:10 am
PDX
- STL
1 stop7h 15m
Southwest
Deal found 6/20![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:30 am
SGF
- BOI
1 stop5h 05m
United Airlines
Tue 9/2212:28 pm
BOI
- SGF
1 stop8h 34m
United Airlines
Deal found 6/18![United Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:34 pm
STL
- PDX
1 stop7h 46m
Delta
Fri 8/1412:35 am
PDX
- STL
1 stop7h 48m
Delta
Deal found 6/18![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 10/126:12 pm
MCI
- PDX
Nonstop3h 58m
Alaska Airlines
Mon 10/196:06 am
PDX
- MCI
1 stop6h 11m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 6/16. 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.
Tue 7/147:25 pm
MCI
- BOI
1 stop6h 05m
Southwest
Tue 7/216:00 am
BOI
- MCI
1 stop6h 55m
Southwest
Deal found 6/16![Southwest logo]()
$347
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/242:27 pm
STL
- BOI
1 stop8h 36m
American Airlines
Tue 9/293:21 pm
BOI
- STL
1 stop8h 06m
American Airlines
Deal found 6/21![American Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 6/16. 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.
Wed 8/196:01 pm
MCI
- RDM
1 stop7h 48m
Delta
Tue 8/251:52 pm
RDM
- MCI
1 stop7h 10m
Delta
Deal found 6/16![Delta logo]()
$321
This United Airlines deal was found by Cheapflights users on 6/19. 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
- PDX
1 stop5h 57m
United Airlines
Thu 10/111:30 pm
PDX
- SGF
1 stop9h 15m
United Airlines
Deal found 6/19![United Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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 8/256:35 am
STL
- BOI
1 stop8h 47m
Alaska Airlines
Wed 8/266:23 am
BOI
- STL
1 stop6h 43m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 6/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:15 am
MCI
- PDX
1 stop6h 30m
Delta
Mon 8/241:25 pm
PDX
- MCI
1 stop8h 16m
Delta
Deal found 6/20![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:35 am
MCI
- PDX
2 stops13h 55m
Southwest
Sat 8/18:20 pm
PDX
- MCI
1 stop13h 15m
Southwest
Deal found 6/20![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:24 pm
MCI
- BOI
1 stop6h 13m
United Airlines
Sat 7/255:46 pm
BOI
- MCI
1 stop4h 39m
United Airlines
Deal found 6/20![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
Sat 8/221:34 pm
MCI
- MFR
1 stop6h 40m
Alaska Airlines
Wed 8/261:27 pm
MFR
- MCI
1 stop8h 32m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 6/16. 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.
Fri 11/207:00 am
MCI
- PDX
1 stop7h 18m
Delta
Tue 11/243:10 pm
PDX
- MCI
1 stop6h 07m
Delta
Deal found 6/16![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/16. 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 7/93:40 pm
MCI
- PDX
2 stops8h 25m
Southwest
Mon 7/1311:30 pm
PDX
- MCI
1 stop7h 50m
Southwest
Deal found 6/16![Southwest logo]()
$373
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:47 pm
COU
- PDX
1 stop7h 00m
American Airlines
Wed 7/811:15 pm
PDX
- COU
1 stop8h 46m
American Airlines
Deal found 6/16![American Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 6/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:40 pm
MCI
- MFR
2 stops11h 19m
United Airlines
Sat 8/155:00 am
MFR
- MCI
1 stop5h 37m
United Airlines
Deal found 6/20![United Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 6/19. 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 7/307:32 am
MCI
- PDX
1 stop6h 48m
Delta
Mon 8/35:08 pm
PDX
- MCI
1 stop5h 05m
Delta
Deal found 6/19![Delta logo]()
$329
Last-minute flights from Missouri to OregonDiscover last-minute flight deals from Missouri to Oregon. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Oregon. Data last updated June 21, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Fri 7/312:26 pm
PDX
- MCI
1 stop22h 34m
Frontier
Deal found 6/16![Frontier logo]()
$288
This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/61:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Sat 7/2512:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/18![Frontier logo]()
$283
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/74:58 pm
MCI
- PDX
1 stop25h 38m
Frontier
Wed 7/155:21 pm
PDX
- MCI
1 stop17h 39m
Frontier
Deal found 6/16![Frontier logo]()
$304
This Booking.com deal was found by Cheapflights users on 6/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Tue 7/211:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 6/17![Frontier logo]()
$242
This CheapOair deal was found by Cheapflights users on 6/19. 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 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Thu 8/136:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Deal found 6/19![Frontier logo]()
$289
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Thu 7/236:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Deal found 6/19![Frontier logo]()
$297
This CheapOair deal was found by Cheapflights users on 6/17. 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.
Thu 7/234:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Tue 7/285:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 6/17![Frontier logo]()
$269
This Booking.com deal was found by Cheapflights users on 6/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/251:45 pm
MCI
- BOI
1 stop23h 44m
Frontier
Sun 8/21:24 pm
BOI
- MCI
1 stop22h 36m
Frontier
Deal found 6/17![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:32 pm
MCI
- MFR
1 stop24h 14m
Multiple Airlines
Thu 8/69:38 pm
MFR
- MCI
1 stop16h 09m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:32 pm
MCI
- MFR
1 stop24h 14m
Multiple Airlines
Mon 8/39:11 pm
MFR
- MCI
2 stops13h 49m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$295
This CheapOair deal was found by Cheapflights users on 6/19. 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.
Wed 7/298:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Mon 8/35:49 pm
PDX
- STL
1 stop22h 16m
Frontier
Deal found 6/19![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/20. 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 7/298:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Sun 8/21:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/20![Frontier logo]()
$286
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 June 21, 2026.
Search for one-way flight options from Missouri to Oregon. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Sat 7/257:10 pm
STL
- MFR
1 stop27h 33m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Sat 9/192:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 6/19![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 6/20. 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 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 6/20![Frontier logo]()
$120
This Expedia deal was found by Cheapflights users on 6/16. 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 Expedia 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
Deal found 6/16![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 6/20. 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.
Tue 7/218:08 pm
STL
- PDX
1 stop22h 28m
Frontier
Deal found 6/20![Frontier logo]()
$129
This Trip.com deal was found by Cheapflights users on 6/18. 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.
Thu 7/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/18![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/20. 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.
Thu 7/237:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/20![Frontier logo]()
$131
This Expedia deal was found by Cheapflights users on 6/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/132:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 6/16![Frontier logo]()
$131
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 6/20![Frontier logo]()
$134
This CheapOair deal was found by Cheapflights users on 6/20. 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 9/232:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 6/20![Frontier logo]()
$136
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:38 pm
STL
- PDX
1 stop23h 19m
Frontier
Deal found 6/19![Frontier logo]()
$138
This CheapOair deal was found by Cheapflights users on 6/20. 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.
Tue 6/301:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Deal found 6/20![Frontier logo]()
$140
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 June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Frontier) |
One-way from | $115 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $392 |
Good round-trip deal | $387 or less |
Good one-way deal | $188 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 June 21, 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
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Wed 7/29
8:08 pm-12:29 pm
1 stop17h 21m
Boise Air Term. Gowen Fld
Sun 8/2
1:24 pm-7:23 pm
1 stop4h 59m
$286
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 9/3
7:45 pm-11:39 pm
1 stop5h 54m
Portland
Fri 9/11
1:27 pm-9:31 pm
1 stop6h 04m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 7/7
7:55 pm-11:44 pm
1 stop5h 49m
Portland
Tue 7/14
5:14 pm-12:41 am
1 stop5h 27m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/12
5:00 pm-10:33 pm
1 stop7h 33m
Portland
Fri 9/18
12:25 am-10:34 am
1 stop8h 09m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Mon 8/10
5:34 pm-11:20 pm
1 stop7h 46m
Portland
Fri 8/14
12:35 am-10:23 am
1 stop7h 48m
$319
Kansas CityRedmond
MCI - RDM
MCIRDM
Kansas City
Wed 8/19
6:01 pm-11:49 pm
1 stop7h 48m
Bend/Redmond
Tue 8/25
1:52 pm-11:02 pm
1 stop7h 10m
$321
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 7/21
6:55 pm-11:55 pm
1 stop7h 00m
Portland
Tue 7/28
5:50 am-5:45 pm
2 stops9h 55m
$324
Quickest round-trip
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Tue 10/6
6:12 pm-8:10 pm
Nonstop3h 58m
Portland
Wed 10/7
11:52 am-5:18 pm
Nonstop3h 26m
$327
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Wed 8/5
12:35 pm-5:50 pm
1 stop7h 15m
Portland
Mon 8/10
6:25 am-4:55 pm
1 stop8h 30m
$329
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Fri 8/21
7:15 am-11:45 am
1 stop6h 30m
Portland
Mon 8/24
1:25 pm-11:41 pm
1 stop8h 16m
$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
MCI-PDX
STL-PDX
STL-BOI
MCI-MFR
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
MCI-PDX
STL-PDX
STL-BOI
What is the cheapest month to book a flight from Missouri to Oregon?
Currently, August is the cheapest month in which you can book a flight from Missouri to Oregon (average of $83). Flying from Missouri to Oregon in June is currently the most expensive (average of $165). 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 June 21, 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 11% on your trip compared to booking a flight in the morning.
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 87 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 June 21, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Food
7.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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 June 21, 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$392 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$120 | Average$237 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$158 | Average$422 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$466 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$186 | Average$438 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$473 | FlexibilityNo cancel fee | On-time69% |