$100+ Cheap flights from Portland (PDX) to Missouri
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STL
Jun 8 — Jun 151
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 Portland to MissouriExplore the most affordable flight options available from Portland to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
Explore the most affordable flight options available from Portland to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/95:20 pm
PDX
- MCI
1 stop17h 40m
Frontier
Tue 6/161:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Deal found 5/7![Frontier logo]()
$239
This CheapOair deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 6/118:42 pm
PDX
- STL
1 stop15h 24m
Frontier
Wed 6/177:46 pm
STL
- PDX
1 stop26h 01m
Frontier
Deal found 5/9![Frontier logo]()
$240
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 5/2112:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Wed 5/278:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 5/5![Frontier logo]()
$250
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Sun 5/318:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 5/6![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:26 pm
PDX
- MCI
1 stop22h 29m
Frontier
Tue 8/181:45 pm
MCI
- PDX
1 stop29h 12m
Frontier
Deal found 5/8![Frontier logo]()
$256
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/111:15 am
PDX
- STL
1 stop6h 56m
Frontier
Wed 6/36:51 pm
STL
- PDX
1 stop17h 29m
Frontier
Deal found 5/7![Frontier logo]()
$259
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.
Thu 8/612:26 pm
PDX
- MCI
1 stop22h 29m
Frontier
Sun 8/91:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Deal found 5/6![Frontier logo]()
$260
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 6/111:15 am
PDX
- STL
1 stop6h 56m
Frontier
Fri 6/59:06 pm
STL
- PDX
1 stop15h 14m
Frontier
Deal found 5/5![Frontier logo]()
$260
This Booking.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Fri 7/3112:26 pm
PDX
- MCI
1 stop22h 29m
Frontier
Fri 8/71:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Deal found 5/7![Frontier logo]()
$262
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.
Fri 5/2212:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Mon 5/258:08 pm
STL
- PDX
1 stop22h 53m
Frontier
Deal found 5/4![Frontier logo]()
$271
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/188:42 pm
PDX
- STL
1 stop15h 24m
Frontier
Mon 6/227:38 pm
STL
- PDX
1 stop22h 57m
Frontier
Deal found 5/6![Frontier logo]()
$280
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.
Fri 8/712:26 pm
PDX
- MCI
1 stop22h 29m
Frontier
Sun 8/91:50 pm
MCI
- PDX
1 stop6h 14m
Frontier
Deal found 5/6![Frontier logo]()
$281
Best flights from Portland to MissouriDiscover carefully curated flight deals from Portland to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
Discover carefully curated flight deals from Portland to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/43:10 pm
PDX
- STL
1 stop6h 11m
Delta
Thu 6/117:55 pm
STL
- PDX
1 stop5h 51m
Delta
Deal found 5/7![Delta logo]()
$319
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:30 pm
PDX
- MCI
1 stop8h 00m
Southwest
Sun 6/75:45 pm
MCI
- PDX
1 stop8h 20m
Southwest
Deal found 5/6![Southwest logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:00 am
PDX
- MCI
1 stop6h 57m
Alaska Airlines
Sat 6/62:51 pm
MCI
- PDX
1 stop8h 37m
Alaska Airlines
Deal found 5/7![Alaska Airlines logo]()
$329
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:15 pm
PDX
- SGF
1 stop5h 27m
United Airlines
Wed 6/104:49 pm
SGF
- PDX
1 stop7h 59m
United Airlines
Deal found 5/6![United Airlines logo]()
$366
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.
Wed 5/201:52 pm
PDX
- COU
1 stop7h 01m
American Airlines
Sun 5/246:32 pm
COU
- PDX
1 stop7h 20m
American Airlines
Deal found 5/5![American Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/77:17 pm
PDX
- SGF
1 stop22h 43m
Multiple Airlines
Sun 6/142:06 pm
SGF
- PDX
2 stops31h 41m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$655
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/25:00 am
PDX
- MCI
1 stop6h 57m
Alaska Airlines
Fri 6/57:55 pm
MCI
- PDX
1 stop6h 04m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/2810:45 am
PDX
- MCI
2 stops10h 05m
Southwest
Thu 6/49:15 pm
MCI
- PDX
1 stop6h 05m
Southwest
Deal found 5/7![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/2512:33 am
PDX
- MCI
1 stop6h 00m
Delta
Mon 6/296:20 am
MCI
- PDX
1 stop6h 20m
Delta
Deal found 5/7![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 8/64:15 pm
PDX
- JLN
1 stop5h 29m
United Airlines
Fri 8/211:53 pm
JLN
- PDX
2 stops10h 52m
United Airlines
Deal found 5/9![United Airlines logo]()
$404
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:50 am
PDX
- MCI
1 stop6h 40m
Southwest
Fri 5/154:55 pm
MCI
- PDX
1 stop9h 15m
Southwest
Deal found 5/6![Southwest logo]()
$377
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.
Sat 5/231:25 pm
PDX
- STL
1 stop5h 41m
Delta
Tue 5/266:21 am
STL
- PDX
1 stop8h 09m
Delta
Deal found 5/6![Delta logo]()
$377
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 6/511:30 am
PDX
- MCI
Nonstop3h 27m
Alaska Airlines
Mon 6/85:52 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$397
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:20 am
PDX
- COU
1 stop8h 09m
American Airlines
Mon 6/16:32 pm
COU
- PDX
1 stop7h 20m
American Airlines
Deal found 5/4![American Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/2211:53 pm
PDX
- COU
1 stop8h 25m
United Airlines
Tue 5/268:00 am
COU
- PDX
1 stop9h 56m
United Airlines
Deal found 5/7![United Airlines logo]()
$408
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 9/224:00 pm
PDX
- STL
1 stop5h 40m
Southwest
Thu 9/246:05 am
STL
- PDX
2 stops10h 55m
Southwest
Deal found 5/5![Southwest logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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.
Sun 6/710:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Sun 6/145:37 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/234:15 pm
PDX
- SGF
1 stop5h 27m
United Airlines
Thu 6/114:49 pm
SGF
- PDX
1 stop7h 59m
United Airlines
Deal found 5/7![United Airlines logo]()
$413
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.
Tue 6/235:20 pm
PDX
- MCI
2 stops13h 25m
Southwest
Sun 6/286:45 pm
MCI
- PDX
1 stop7h 45m
Southwest
Deal found 5/4![Southwest logo]()
$404
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:07 pm
PDX
- SGF
1 stop9h 49m
Delta
Mon 8/1711:38 am
SGF
- PDX
2 stops10h 39m
Delta
Deal found 5/4![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/211:40 pm
PDX
- MCI
1 stop7h 02m
United Airlines
Fri 6/54:26 pm
MCI
- PDX
2 stops10h 24m
United Airlines
Deal found 5/8![United Airlines logo]()
$424
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.
Thu 6/187:40 pm
PDX
- STL
1 stop10h 30m
Southwest
Sun 6/217:35 pm
STL
- PDX
1 stop7h 25m
Southwest
Deal found 5/5![Southwest logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:44 am
PDX
- STL
1 stop7h 01m
Alaska Airlines
Sun 5/315:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 9/192:15 pm
PDX
- STL
1 stop6h 45m
United Airlines
Wed 9/235:10 am
STL
- PDX
2 stops8h 57m
United Airlines
Deal found 5/7![United Airlines logo]()
$424
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.
Wed 6/105:50 am
PDX
- STL
2 stops9h 55m
Southwest
Wed 6/175:55 pm
STL
- PDX
1 stop7h 35m
Southwest
Deal found 5/4![Southwest logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 7/712:03 pm
PDX
- MCI
1 stop9h 56m
Alaska Airlines
Tue 7/145:50 pm
MCI
- PDX
Nonstop3h 56m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$457
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:55 pm
PDX
- STL
1 stop7h 35m
Southwest
Thu 6/43:20 pm
STL
- PDX
2 stops8h 45m
Southwest
Deal found 5/6![Southwest logo]()
$416
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:45 pm
PDX
- COU
2 stops12h 33m
United Airlines
Sun 5/249:14 am
COU
- PDX
1 stop7h 59m
United Airlines
Deal found 5/5![United Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 7/155:10 am
PDX
- STL
1 stop9h 10m
Southwest
Sun 7/194:45 pm
STL
- PDX
Nonstop4h 05m
Southwest
Deal found 5/9![Southwest logo]()
$460
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.
Thu 8/69:20 am
PDX
- STL
2 stops11h 45m
Southwest
Sun 8/93:05 pm
STL
- PDX
2 stops10h 25m
Southwest
Deal found 5/4![Southwest logo]()
$475
Last-minute flights from Portland to MissouriDiscover last-minute flight deals from Portland to Missouri. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Missouri. Data last updated May 9, 2026 and is based on user searches.
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 5/2112:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Wed 5/278:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 5/5![Frontier logo]()
$250
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.
Fri 5/2212:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Mon 5/258:08 pm
STL
- PDX
1 stop22h 53m
Frontier
Deal found 5/4![Frontier logo]()
$271
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 5/2312:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Sun 5/319:06 pm
STL
- PDX
1 stop15h 14m
Frontier
Deal found 5/5![Frontier logo]()
$290
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Sat 5/305:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 5/6![Alaska Airlines logo]()
$289
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:35 pm
PDX
- STL
1 stop28h 48m
Frontier
Sun 5/318:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 5/6![Frontier logo]()
$254
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/111:15 am
PDX
- STL
1 stop6h 56m
Frontier
Wed 6/36:51 pm
STL
- PDX
1 stop17h 29m
Frontier
Deal found 5/7![Frontier logo]()
$259
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 6/111:15 am
PDX
- STL
1 stop6h 56m
Frontier
Fri 6/59:06 pm
STL
- PDX
1 stop15h 14m
Frontier
Deal found 5/5![Frontier logo]()
$260
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/25:46 pm
PDX
- STL
1 stop23h 37m
Frontier
Thu 6/49:06 pm
STL
- PDX
1 stop15h 14m
Frontier
Deal found 5/7![Frontier logo]()
$281
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/95:20 pm
PDX
- MCI
1 stop17h 40m
Frontier
Tue 6/161:45 pm
MCI
- PDX
1 stop28h 50m
Frontier
Deal found 5/7![Frontier logo]()
$239
This CheapOair deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 6/118:42 pm
PDX
- STL
1 stop15h 24m
Frontier
Wed 6/177:46 pm
STL
- PDX
1 stop26h 01m
Frontier
Deal found 5/9![Frontier logo]()
$240
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/188:42 pm
PDX
- STL
1 stop15h 24m
Frontier
Mon 6/227:38 pm
STL
- PDX
1 stop22h 57m
Frontier
Deal found 5/6![Frontier logo]()
$280
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 6/305:20 pm
PDX
- MCI
1 stop13h 27m
Frontier
Tue 7/71:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Deal found 5/5![Frontier logo]()
$296
One-way flights from Portland to MissouriSearch for one-way flight options from Portland to Missouri. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
Search for one-way flight options from Portland to Missouri. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:46 pm
PDX
- STL
1 stop23h 37m
Frontier
Deal found 5/6![Frontier logo]()
$100
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 9/15:42 pm
PDX
- STL
1 stop23h 41m
Frontier
Deal found 5/5![Frontier logo]()
$103
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 5/2911:15 am
PDX
- STL
1 stop6h 56m
Frontier
Deal found 5/4![Frontier logo]()
$105
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:20 pm
PDX
- MCI
1 stop17h 40m
Frontier
Deal found 5/6![Frontier logo]()
$108
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:38 pm
PDX
- MCI
2 stops24h 51m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$114
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Wed 6/175:20 pm
PDX
- STL
1 stop23h 33m
Frontier
Deal found 5/7![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:26 pm
PDX
- STL
1 stop28h 57m
Frontier
Deal found 5/8![Frontier logo]()
$116
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:15 am
PDX
- STL
1 stop6h 56m
Frontier
Deal found 5/6![Frontier logo]()
$119
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.
Thu 6/42:38 pm
PDX
- STL
2 stops40h 17m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$124
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.
Mon 7/2012:26 pm
PDX
- MCI
1 stop22h 29m
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 5/265:46 pm
PDX
- STL
2 stops13h 09m
Frontier
Deal found 5/5![Frontier logo]()
$131
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.
Thu 6/114:06 pm
PDX
- STL
2 stops38h 46m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$134
Find flight deals from Portland to Missouri
Keep the following information in mind while searching for Portland to Missouri flight deals. Data was last updated May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Mytrip) |
One-way from | $100 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $403 |
Good round-trip deal | $384 or less |
Good one-way deal | $144 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
Use the filters below to find and compare flights from Portland to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 6/4
3:10 pm-11:21 pm
1 stop6h 11m
Lambert-St Louis
Thu 6/11
7:55 pm-11:46 pm
1 stop5h 51m
$319
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 6/4
11:30 pm-9:30 am
1 stop8h 00m
Kansas City
Sun 6/7
5:45 pm-12:05 am
1 stop8h 20m
$327
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Wed 6/3
5:00 am-1:57 pm
1 stop6h 57m
Kansas City
Sat 6/6
2:51 pm-9:28 pm
1 stop8h 37m
$329
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Tue 6/2
5:00 am-1:57 pm
1 stop6h 57m
Kansas City
Fri 6/5
7:55 pm-11:59 pm
1 stop6h 04m
$363
PortlandSpringfield
PDX - SGF
PDXSGF
Portland
Wed 6/3
4:15 pm-11:42 pm
1 stop5h 27m
Springfield-Branson
Wed 6/10
4:49 pm-10:48 pm
1 stop7h 59m
$366
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 5/28
10:45 am-10:50 pm
2 stops10h 05m
Kansas City
Thu 6/4
9:15 pm-1:20 am
1 stop6h 05m
$368
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 6/25
12:33 am-8:33 am
1 stop6h 00m
Kansas City
Mon 6/29
6:20 am-10:40 am
1 stop6h 20m
$374
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Wed 5/13
8:50 am-5:30 pm
1 stop6h 40m
Kansas City
Fri 5/15
4:55 pm-12:10 am
1 stop9h 15m
$377
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Sat 5/23
1:25 pm-9:06 pm
1 stop5h 41m
Lambert-St Louis
Tue 5/26
6:21 am-12:30 pm
1 stop8h 09m
$377
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 9/22
4:00 pm-11:40 pm
1 stop5h 40m
Lambert-St Louis
Thu 9/24
6:05 am-3:00 pm
2 stops10h 55m
$389
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portland to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Portland with our price prediction graph.
PDX-STL
PDX-MCI
PDX-SGF
PDX-COU
PDX-JLN
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 Portland to Missouri
PDX-USMO
PDX-STL
PDX-MCI
PDX-SGF
PDX-COU
How far ahead should I book a flight from Portland to Missouri?
Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Missouri. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Portland to Missouri?
Currently, July is the cheapest month in which you can book a flight from Portland to Missouri (average of $89). Flying from Portland to Missouri in January is currently the most expensive (average of $169). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PDX to MO?
Find hourly flight availability from Portland to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 9, 2026.
When flying from Portland to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Portland to Missouri?
Reviews of airlines servicing Missouri
Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated May 9, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Portland to Missouri by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Portland to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to Missouri
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Complete your trip
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Search flights from Portland to Missouri by cabin class
Find flights from Portland to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Missouri flights
Browse other Portland and Missouri flight options. Last updated on May 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Missouri flights
Consider these flights traveling from Portland to Missouri.
Top 7 airlines flying from Portland to Missouri
Discover the top 7 airlines that operate flights from Portland to Missouri. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$341 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$125 | Average$287 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$181 | Average$399 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$186 | Average$307 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$196 | Average$394 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$399 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$399 | FlexibilityNo cancel fee | On-time71% |