$120+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — PDX
Aug 3 — Aug 101
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 July 4, 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 4, 2026.
This Booking.com deal was found by Cheapflights users on 7/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:17 pm
MCI
- BOI
1 stop22h 47m
Frontier
Tue 9/2212:59 pm
BOI
- MCI
1 stop23h 23m
Frontier
Deal found 7/2![Frontier logo]()
$222
This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:38 pm
MCI
- BOI
1 stop23h 51m
Frontier
Tue 9/1512:59 pm
BOI
- MCI
1 stop23h 23m
Frontier
Deal found 7/2![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Sat 8/2912:20 pm
PDX
- MCI
1 stop22h 33m
Frontier
Deal found 7/3![Frontier logo]()
$252
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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
Tue 8/111:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/30![Frontier logo]()
$254
This CheapOair deal was found by Cheapflights users on 7/4. 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 7/208:08 pm
STL
- PDX
1 stop22h 23m
Frontier
Wed 7/295:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 7/4![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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.
Sun 9/61:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Wed 9/93:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/30![Frontier logo]()
$260
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Fri 8/75:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 7/3![Frontier logo]()
$263
This CheapOair deal was found by Cheapflights users on 7/1. 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.
Mon 9/148:10 pm
STL
- BOI
1 stop16h 54m
Frontier
Thu 9/1712:59 pm
BOI
- STL
1 stop5h 16m
Frontier
Deal found 7/1![Frontier logo]()
$266
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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
Sat 7/1112:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/30![Frontier logo]()
$268
This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:46 pm
STL
- PDX
1 stop9h 53m
Multiple Airlines
Tue 9/2911:16 am
PDX
- STL
Nonstop3h 54m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/211:50 pm
MCI
- PDX
1 stop8h 49m
Frontier
Fri 9/253:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/30![Frontier logo]()
$269
This CheapOair deal was found by Cheapflights users on 7/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Tue 7/285:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 7/3![Frontier logo]()
$274
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 4, 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 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Wed 8/2611:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/123:52 pm
STL
- PDX
1 stop6h 24m
Delta
Sat 9/196:00 am
PDX
- STL
1 stop8h 47m
Delta
Deal found 6/30![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/178:25 am
STL
- PDX
1 stop7h 00m
Southwest
Fri 9/1812:40 pm
PDX
- STL
1 stop9h 10m
Southwest
Deal found 6/29![Southwest logo]()
$319
This CheapOair deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 7/278:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Sun 8/21:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/29![Frontier logo]()
$328
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/256:25 am
SGF
- PDX
1 stop7h 34m
United Airlines
Sat 9/510:50 am
PDX
- SGF
1 stop7h 57m
United Airlines
Deal found 6/29![United Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/811:20 am
MCI
- MFR
2 stops10h 00m
American Airlines
Sat 8/153:40 pm
MFR
- MCI
1 stop6h 04m
American Airlines
Deal found 7/2![American Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 7/3. 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.
Sat 8/228:30 am
MCI
- PDX
1 stop6h 20m
Southwest
Sat 8/296:20 am
PDX
- MCI
2 stops8h 55m
Southwest
Deal found 7/3![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 8/253:52 pm
MCI
- PDX
1 stop8h 20m
Delta
Mon 8/315:45 am
PDX
- MCI
1 stop6h 23m
Delta
Deal found 6/30![Delta logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 8/257:00 am
MCI
- BOI
1 stop6h 36m
Alaska Airlines
Tue 9/12:17 pm
BOI
- MCI
1 stop8h 42m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/3012:45 pm
MCI
- PDX
2 stops9h 05m
Southwest
Wed 10/711:35 pm
PDX
- MCI
1 stop7h 15m
Southwest
Deal found 6/30![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 am
SGF
- BOI
1 stop5h 05m
United Airlines
Sat 8/2910:36 am
BOI
- SGF
1 stop4h 48m
United Airlines
Deal found 6/29![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/2. 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.
Fri 7/177:32 am
MCI
- PDX
1 stop6h 48m
Delta
Fri 7/245:14 pm
PDX
- MCI
1 stop4h 59m
Delta
Deal found 7/2![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 9/52:48 pm
MCI
- EUG
1 stop9h 53m
Alaska Airlines
Sat 9/125:25 am
EUG
- MCI
1 stop5h 13m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/3. 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 8/1112:45 pm
MCI
- PDX
2 stops9h 05m
Southwest
Sat 8/1511:40 am
PDX
- MCI
Nonstop3h 20m
Southwest
Deal found 7/3![Southwest logo]()
$324
This United Airlines deal was found by Cheapflights users on 7/3. 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 9/121:36 pm
STL
- PDX
1 stop6h 13m
United Airlines
Sat 9/195:00 am
PDX
- STL
2 stops8h 38m
United Airlines
Deal found 7/3![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 7/2. 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 8/127:15 am
MCI
- PDX
1 stop6h 30m
Delta
Tue 8/1812:25 pm
PDX
- MCI
1 stop8h 37m
Delta
Deal found 7/2![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:34 pm
MCI
- MFR
1 stop6h 47m
Alaska Airlines
Mon 9/216:58 pm
MFR
- MCI
1 stop16h 59m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 7/3. 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.
Wed 7/228:00 pm
MCI
- PDX
1 stop6h 10m
Southwest
Tue 7/285:50 am
PDX
- MCI
1 stop7h 20m
Southwest
Deal found 7/3![Southwest logo]()
$329
This Delta deal was found by Cheapflights users on 7/2. 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.
Sat 8/87:00 am
MCI
- MFR
1 stop6h 40m
Delta
Sat 8/1512:20 pm
MFR
- MCI
1 stop8h 42m
Delta
Deal found 7/2![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:13 pm
SGF
- BOI
2 stops10h 27m
American Airlines
Mon 8/173:19 pm
BOI
- SGF
1 stop6h 24m
American Airlines
Deal found 7/2![American Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/105:30 am
SGF
- BOI
1 stop5h 05m
United Airlines
Fri 9/185:40 pm
BOI
- SGF
1 stop5h 02m
United Airlines
Deal found 6/30![United Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/282:48 pm
MCI
- MFR
1 stop5h 59m
Alaska Airlines
Mon 8/315:05 am
MFR
- MCI
1 stop5h 33m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/56:01 pm
MCI
- MFR
1 stop7h 54m
Delta
Thu 8/1312:20 pm
MFR
- MCI
2 stops9h 21m
Delta
Deal found 6/29![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 7/3. 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.
Sat 9/265:40 am
MCI
- BOI
2 stops8h 20m
Southwest
Wed 9/307:05 am
BOI
- MCI
2 stops8h 20m
Southwest
Deal found 7/3![Southwest logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/122:53 pm
MCI
- MFR
1 stop5h 47m
Alaska Airlines
Sun 9/205:05 am
MFR
- MCI
1 stop5h 33m
Alaska Airlines
Deal found 6/29![Alaska Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:16 am
SGF
- BOI
1 stop8h 17m
American Airlines
Wed 11/253:24 pm
BOI
- SGF
1 stop17h 38m
American Airlines
Deal found 7/2![American Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 10/65:06 pm
SGF
- PDX
1 stop6h 04m
United Airlines
Sat 10/106:50 am
PDX
- SGF
1 stop9h 46m
United Airlines
Deal found 7/3![United Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/127:00 am
MCI
- MFR
2 stops11h 47m
Delta
Sun 9/2012:22 pm
MFR
- MCI
1 stop8h 54m
Delta
Deal found 6/29![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:30 pm
MCI
- PDX
1 stop7h 35m
Southwest
Mon 9/710:45 pm
PDX
- MCI
1 stop11h 05m
Southwest
Deal found 6/29![Southwest logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 7/4. 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.
Mon 9/212:53 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Fri 9/258:14 am
PDX
- MCI
1 stop13h 45m
Alaska Airlines
Deal found 7/4![Alaska Airlines logo]()
$367
Last-minute flights from Missouri to OregonDiscover last-minute flight deals from Missouri to Oregon. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Oregon. Data last updated July 4, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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
Sat 7/1112:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/30![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 7/4. 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 7/208:08 pm
STL
- PDX
1 stop22h 23m
Frontier
Wed 7/295:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 7/4![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 7/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Tue 7/285:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 7/3![Frontier logo]()
$274
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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
Tue 8/111:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/30![Frontier logo]()
$254
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Fri 8/75:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 7/3![Frontier logo]()
$263
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/304:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Tue 8/45:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Deal found 6/30![Frontier logo]()
$269
This CheapOair deal was found by Cheapflights users on 7/1. 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.
Thu 7/304:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Mon 8/312:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 7/1![Frontier logo]()
$278
This CheapOair deal was found by Cheapflights users on 7/2. 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 8/57:03 pm
STL
- PDX
1 stop25h 01m
Frontier
Fri 8/75:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 7/2![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 7/2. 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 8/64:32 pm
MCI
- PDX
1 stop26h 22m
Frontier
Sun 8/96:49 pm
PDX
- MCI
1 stop18h 58m
Frontier
Deal found 7/2![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Sat 8/2912:20 pm
PDX
- MCI
1 stop22h 33m
Frontier
Deal found 7/3![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 7/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:45 pm
STL
- PDX
1 stop20h 07m
Frontier
Sat 8/2912:20 pm
PDX
- STL
1 stop28h 53m
Frontier
Deal found 7/2![Frontier logo]()
$277
This Expedia deal was found by Cheapflights users on 7/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:47 pm
MCI
- PDX
1 stop26h 34m
Multiple Airlines
Sat 9/57:03 am
PDX
- MCI
Nonstop3h 35m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$279
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 4, 2026.
Search for one-way flight options from Missouri to Oregon. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 6/30![Frontier logo]()
$120
This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 7/1![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:45 pm
STL
- PDX
1 stop20h 07m
Frontier
Deal found 7/1![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 7/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:03 pm
STL
- PDX
1 stop25h 01m
Frontier
Deal found 7/1![Frontier logo]()
$129
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 7/3![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/258:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/30![Frontier logo]()
$131
This Travelocity deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:47 pm
MCI
- PDX
1 stop26h 34m
Frontier
Deal found 6/29![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:45 pm
STL
- PDX
1 stop24h 36m
Frontier
Deal found 7/1![Frontier logo]()
$133
This CheapOair deal was found by Cheapflights users on 7/1. 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.
Sat 8/18:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 7/1![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 7/1. 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.
Mon 9/281:50 pm
MCI
- PDX
1 stop8h 49m
Frontier
Deal found 7/1![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Sat 8/14:57 pm
STL
- PDX
2 stops23h 01m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$136
This CheapOair deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 6/30![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 July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Booking.com) |
One-way from | $120 (Frontier) |
Popular in | July |
Cheapest in | January |
Average price | $437 |
Good round-trip deal | $373 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 July 4, 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
Tue 8/25
6:08 pm-8:20 pm
Nonstop4h 12m
Portland
Wed 8/26
11:16 am-5:10 pm
Nonstop3h 54m
$297
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/12
3:52 pm-8:16 pm
1 stop6h 24m
Portland
Sat 9/19
6:00 am-4:47 pm
1 stop8h 47m
$319
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 9/17
8:25 am-1:25 pm
1 stop7h 00m
Portland
Fri 9/18
12:40 pm-11:50 pm
1 stop9h 10m
$319
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Sat 8/22
8:30 am-12:50 pm
1 stop6h 20m
Portland
Sat 8/29
6:20 am-5:15 pm
2 stops8h 55m
$322
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Wed 9/30
12:45 pm-7:50 pm
2 stops9h 05m
Portland
Wed 10/7
11:35 pm-8:50 am
1 stop7h 15m
$322
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Tue 8/25
3:52 pm-10:12 pm
1 stop8h 20m
Portland
Mon 8/31
5:45 am-2:08 pm
1 stop6h 23m
$323
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Tue 8/11
12:45 pm-7:50 pm
2 stops9h 05m
Portland
Sat 8/15
11:40 am-5:00 pm
Nonstop3h 20m
$324
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Mon 7/27
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
$328
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Fri 7/17
7:32 am-12:20 pm
1 stop6h 48m
Portland
Fri 7/24
5:14 pm-12:13 am
1 stop4h 59m
$329
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Wed 8/12
7:15 am-11:45 am
1 stop6h 30m
Portland
Tue 8/18
12:25 pm-11:02 pm
1 stop8h 37m
$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-BOI
STL-PDX
SGF-PDX
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-BOI
STL-PDX
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 July 4, 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 38% 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 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 4, 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.
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 4, 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$391 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$120 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$158 | Average$426 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$466 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$186 | Average$439 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$473 | FlexibilityNo cancel fee | On-time69% |