$110+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Jun 5 — Jun 121
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Oregon with Cheapflights
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 May 6, 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 May 6, 2026.
This CheapOair deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 8/61:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Sun 8/96:59 pm
PDX
- MCI
1 stop15h 56m
Frontier
Deal found 5/5![Frontier logo]()
$260
This CheapOair deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/272:34 pm
MCI
- PDX
1 stop28h 12m
Frontier
Sun 5/3112:35 pm
PDX
- MCI
1 stop23h 14m
Frontier
Deal found 5/2![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/108:08 pm
STL
- BOI
1 stop17h 22m
Frontier
Sun 6/141:25 pm
BOI
- STL
1 stop28h 28m
Frontier
Deal found 5/1![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/26:33 pm
STL
- PDX
2 stops45h 15m
Multiple Airlines
Tue 6/95:20 pm
PDX
- STL
1 stop24h 03m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$268
This CheapOair deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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
- BOI
1 stop17h 21m
Frontier
Sun 8/231:04 pm
BOI
- STL
1 stop5h 19m
Frontier
Deal found 5/5![Frontier logo]()
$274
This Expedia deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Thu 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
Sun 5/3112:35 pm
PDX
- STL
1 stop28h 48m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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
- PDX
1 stop29h 08m
Frontier
Wed 8/195:42 pm
PDX
- MCI
1 stop17h 18m
Frontier
Deal found 5/2![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:08 pm
STL
- PDX
1 stop22h 45m
Frontier
Tue 8/115:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Deal found 5/3![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/171:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Mon 7/2012:26 pm
PDX
- MCI
1 stop22h 29m
Frontier
Deal found 5/5![Frontier logo]()
$280
This Trip.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/206:51 pm
STL
- PDX
1 stop17h 29m
Frontier
Sun 5/2411:15 am
PDX
- STL
1 stop6h 56m
Frontier
Deal found 5/5![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/282:34 pm
MCI
- PDX
1 stop28h 12m
Frontier
Mon 6/112:35 pm
PDX
- MCI
1 stop23h 14m
Frontier
Deal found 5/2![Frontier logo]()
$281
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Wed 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$289
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 May 6, 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 May 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/186:02 am
MCI
- BOI
1 stop7h 24m
Alaska Airlines
Wed 8/196:00 am
BOI
- MCI
1 stop5h 38m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 9/54:40 pm
STL
- PDX
1 stop6h 15m
United Airlines
Sat 9/125:00 am
PDX
- STL
1 stop5h 40m
United Airlines
Deal found 5/4![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/261:59 pm
STL
- PDX
1 stop10h 03m
Delta
Sat 8/226:00 am
PDX
- STL
1 stop5h 21m
Delta
Deal found 5/1![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/15:10 am
MCI
- PDX
1 stop6h 30m
Southwest
Tue 8/1111:30 pm
PDX
- MCI
1 stop9h 00m
Southwest
Deal found 5/4![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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.
Tue 6/237:04 am
STL
- BOI
1 stop9h 02m
American Airlines
Tue 6/304:06 pm
BOI
- STL
1 stop6h 53m
American Airlines
Deal found 5/5![American Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/167:08 pm
STL
- MFR
2 stops21h 31m
Multiple Airlines
Fri 5/229:16 pm
MFR
- STL
1 stop18h 18m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 9/125:59 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Sat 9/1911:15 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/255:00 pm
STL
- PDX
1 stop7h 38m
Delta
Fri 7/3111:15 pm
PDX
- STL
1 stop8h 16m
Delta
Deal found 5/5![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/295:40 am
SGF
- BOI
1 stop4h 55m
United Airlines
Tue 9/15:44 pm
BOI
- SGF
1 stop4h 58m
United Airlines
Deal found 5/3![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 5/277:59 pm
STL
- PDX
1 stop5h 45m
Delta
Mon 6/11:40 pm
PDX
- STL
1 stop8h 50m
Delta
Deal found 5/3![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Mon 6/110:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/125:35 am
STL
- PDX
1 stop6h 40m
Southwest
Wed 8/1911:35 am
PDX
- STL
2 stops7h 35m
Southwest
Deal found 5/1![Southwest logo]()
$348
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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.
Fri 5/294:26 pm
MCI
- RDM
2 stops8h 33m
United Airlines
Tue 7/75:00 am
RDM
- MCI
1 stop5h 38m
United Airlines
Deal found 5/3![United Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/107:00 am
MCI
- RDM
1 stop7h 45m
Delta
Wed 7/11:25 pm
RDM
- MCI
1 stop7h 41m
Delta
Deal found 5/1![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/18:20 pm
MCI
- PDX
1 stop6h 35m
Southwest
Sun 6/72:05 pm
PDX
- MCI
Nonstop3h 10m
Southwest
Deal found 5/5![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 8/227:15 am
MCI
- RDM
1 stop7h 57m
Delta
Sat 8/291:52 pm
RDM
- MCI
1 stop7h 10m
Delta
Deal found 5/5![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 10/95:30 am
MCI
- PDX
2 stops10h 55m
Southwest
Tue 10/1311:35 pm
PDX
- MCI
1 stop6h 10m
Southwest
Deal found 5/3![Southwest logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/307:41 pm
STL
- EUG
1 stop16h 00m
Alaska Airlines
Wed 6/310:18 am
EUG
- STL
1 stop6h 27m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/242:55 pm
MCI
- RDM
2 stops10h 03m
Delta
Sat 7/45:20 am
RDM
- MCI
1 stop6h 40m
Delta
Deal found 5/2![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/26:35 am
STL
- BOI
1 stop5h 20m
Southwest
Tue 6/93:00 pm
BOI
- STL
1 stop5h 50m
Southwest
Deal found 5/5![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/181:45 pm
MCI
- BOI
2 stops11h 05m
United Airlines
Wed 8/196:30 am
BOI
- MCI
1 stop5h 09m
United Airlines
Deal found 5/1![United Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/213:52 pm
MCI
- PDX
1 stop8h 21m
Delta
Mon 8/2411:20 pm
PDX
- MCI
1 stop8h 25m
Delta
Deal found 5/3![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/25:52 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Wed 6/311:30 am
PDX
- MCI
Nonstop3h 27m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/206:45 pm
MCI
- PDX
1 stop6h 25m
Southwest
Sun 5/243:45 pm
PDX
- MCI
1 stop6h 10m
Southwest
Deal found 5/1![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/251:45 pm
MCI
- BOI
2 stops11h 05m
United Airlines
Tue 9/12:44 pm
BOI
- MCI
1 stop5h 07m
United Airlines
Deal found 5/4![United Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/102:55 pm
MCI
- PDX
1 stop5h 27m
Delta
Wed 6/175:24 pm
PDX
- MCI
1 stop4h 54m
Delta
Deal found 5/1![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/112:17 pm
MCI
- EUG
1 stop6h 41m
Alaska Airlines
Wed 8/126:00 am
EUG
- MCI
1 stop5h 21m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 9/154:05 pm
STL
- PDX
1 stop8h 10m
Southwest
Wed 9/2310:45 pm
PDX
- STL
2 stops14h 25m
Southwest
Deal found 5/3![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 8/256:28 am
MCI
- BOI
1 stop8h 14m
Delta
Tue 9/18:45 am
BOI
- MCI
1 stop7h 38m
Delta
Deal found 5/6![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/226:00 am
STL
- EUG
1 stop9h 44m
Alaska Airlines
Wed 9/236:05 am
EUG
- STL
1 stop6h 16m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$399
Last-minute flights from Missouri to OregonDiscover last-minute flight deals from Missouri to Oregon. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Oregon. Data last updated May 6, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/206:51 pm
STL
- PDX
1 stop17h 29m
Frontier
Sun 5/2411:15 am
PDX
- STL
1 stop6h 56m
Frontier
Deal found 5/5![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/272:34 pm
MCI
- PDX
1 stop28h 12m
Frontier
Sun 5/3112:35 pm
PDX
- MCI
1 stop23h 14m
Frontier
Deal found 5/2![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/282:34 pm
MCI
- PDX
1 stop28h 12m
Frontier
Mon 6/112:35 pm
PDX
- MCI
1 stop23h 14m
Frontier
Deal found 5/5![Frontier logo]()
$260
This Expedia deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Thu 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
Sun 5/3112:35 pm
PDX
- STL
1 stop28h 48m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Wed 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$289
This Expedia deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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.
Fri 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
Thu 6/411:15 am
PDX
- STL
1 stop6h 56m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/299:06 pm
STL
- PDX
2 stops21h 40m
Frontier
Tue 6/25:46 pm
PDX
- STL
1 stop23h 37m
Frontier
Deal found 5/4![Frontier logo]()
$293
This CheapOair deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/12:34 pm
MCI
- PDX
1 stop28h 27m
Frontier
Sat 6/612:35 pm
PDX
- MCI
1 stop23h 14m
Frontier
Deal found 5/4![Frontier logo]()
$300
This CheapOair deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/12:34 pm
MCI
- PDX
1 stop28h 27m
Frontier
Mon 6/812:35 pm
PDX
- MCI
1 stop22h 25m
Frontier
Deal found 5/4![Frontier logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/26:33 pm
STL
- PDX
2 stops45h 15m
Multiple Airlines
Tue 6/95:20 pm
PDX
- STL
1 stop24h 03m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$268
This CheapOair deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/108:08 pm
STL
- BOI
1 stop17h 22m
Frontier
Sun 6/141:25 pm
BOI
- STL
1 stop28h 28m
Frontier
Deal found 5/1![Frontier logo]()
$261
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/135:35 pm
STL
- PDX
Nonstop4h 05m
Southwest
Fri 6/195:00 pm
PDX
- STL
1 stop6h 50m
Southwest
Deal found 5/4![Southwest logo]()
$299
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 May 6, 2026.
Search for one-way flight options from Missouri to Oregon. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/231:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Deal found 5/4![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/278:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 5/5![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/121:45 pm
MCI
- PDX
1 stop29h 12m
Frontier
Deal found 5/2![Frontier logo]()
$112
This Trip.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/236:30 pm
STL
- PDX
1 stop17h 50m
Frontier
Deal found 5/2![Frontier logo]()
$114
This Frontier deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/122:56 pm
STL
- PDX
1 stop6h 51m
Frontier
Deal found 5/1![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 7/311:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Deal found 5/4![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 7/291:45 pm
MCI
- PDX
1 stop29h 08m
Frontier
Deal found 5/4![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/286:33 pm
STL
- PDX
2 stops45h 25m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$133
This Trip.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/299:06 pm
STL
- PDX
1 stop15h 28m
Frontier
Deal found 5/4![Frontier logo]()
$134
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Tue 6/98:08 pm
STL
- PDX
1 stop22h 27m
Frontier
Deal found 5/6![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/316:16 pm
MCI
- PDX
2 stops45h 42m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$135
This CheapOair deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/151:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Deal found 5/5![Frontier logo]()
$136
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $260 (CheapOair) |
One-way from | $110 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $346 |
Good round-trip deal | $329 or less |
Good one-way deal | $128 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 May 6, 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
Kansas CityBoise
MCI - BOI
MCIBOI
Kansas City
Tue 8/18
6:02 am-12:26 pm
1 stop7h 24m
Boise Air Term. Gowen Fld
Wed 8/19
6:00 am-12:38 pm
1 stop5h 38m
$307
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/5
4:40 pm-8:55 pm
1 stop6h 15m
Portland
Sat 9/12
5:00 am-12:40 pm
1 stop5h 40m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 5/26
1:59 pm-10:02 pm
1 stop10h 03m
Portland
Sat 8/22
6:00 am-1:21 pm
1 stop5h 21m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/12
5:59 pm-8:09 pm
Nonstop4h 10m
Portland
Sat 9/19
11:15 am-5:03 pm
Nonstop3h 48m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 7/25
5:00 pm-10:38 pm
1 stop7h 38m
Portland
Fri 7/31
11:15 pm-9:31 am
1 stop8h 16m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Wed 5/27
7:59 pm-11:44 pm
1 stop5h 45m
Portland
Mon 6/1
1:40 pm-12:30 am
1 stop8h 50m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Fri 5/29
5:33 pm-7:50 pm
Nonstop4h 17m
Portland
Mon 6/1
10:37 am-4:37 pm
Nonstop4h 00m
$309
SpringfieldBoise
SGF - BOI
SGFBOI
Springfield-Branson
Sat 8/29
5:40 am-9:35 am
1 stop4h 55m
Boise Air Term. Gowen Fld
Tue 9/1
5:44 pm-11:42 pm
1 stop4h 58m
$311
Kansas CityRedmond
MCI - RDM
MCIRDM
Kansas City
Wed 6/10
7:00 am-12:45 pm
1 stop7h 45m
Bend/Redmond
Wed 7/1
1:25 pm-11:06 pm
1 stop7h 41m
$311
Kansas CityRedmond
MCI - RDM
MCIRDM
Kansas City
Sat 8/22
7:15 am-1:12 pm
1 stop7h 57m
Bend/Redmond
Sat 8/29
1:52 pm-11:02 pm
1 stop7h 10m
$311
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-PDX
STL-PDX
STL-BOI
SGF-PDX
MCI-BOI
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-PDX
STL-PDX
STL-BOI
SGF-PDX
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 42 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.
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 July is currently the most expensive (average of $173). 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 May 6, 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 22% on your trip compared to booking a flight in the morning.
How much does it cost to fly round-trip from Missouri to Oregon?
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 May 6, 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.
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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 May 6, 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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$112 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$302 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$158 | Average$423 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$412 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$196 | Average$431 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$479 | FlexibilityNo cancel fee | On-time69% |