$126+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MCI
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Missouri 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 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 June 21, 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 June 21, 2026.
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Sun 9/1312:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 6/20![Frontier logo]()
$240
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/20![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/18![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:26 pm
PDX
- MCI
1 stop22h 34m
Frontier
Sun 8/231:50 pm
MCI
- PDX
1 stop29h 34m
Frontier
Deal found 6/16![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:34 pm
PDX
- STL
1 stop28h 41m
Frontier
Tue 10/208:10 pm
STL
- PDX
1 stop22h 25m
Frontier
Deal found 6/18![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:19 pm
PDX
- STL
1 stop17h 47m
Frontier
Fri 7/37:38 pm
STL
- PDX
1 stop23h 19m
Frontier
Deal found 6/17![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Wed 8/196:45 pm
STL
- PDX
1 stop20h 07m
Frontier
Deal found 6/19![Frontier logo]()
$275
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Mon 9/2112:46 pm
STL
- PDX
1 stop9h 53m
Frontier
Deal found 6/20![Frontier logo]()
$276
This CheapOair deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Wed 7/157:03 pm
STL
- PDX
1 stop25h 01m
Frontier
Deal found 6/18![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Sat 8/158:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/17![Frontier logo]()
$286
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Mon 8/38:08 pm
STL
- PDX
1 stop22h 23m
Frontier
Deal found 6/17![Frontier logo]()
$289
This Orbitz deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:22 pm
PDX
- STL
1 stop25h 53m
Multiple Airlines
Tue 9/226:08 pm
STL
- PDX
Nonstop4h 12m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$294
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 June 21, 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 June 21, 2026.
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:10 pm
PDX
- STL
1 stop6h 08m
Delta
Mon 10/262:15 pm
STL
- PDX
1 stop6h 02m
Delta
Deal found 6/20![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:51 pm
PDX
- STL
1 stop7h 15m
United Airlines
Tue 12/86:15 am
STL
- PDX
1 stop7h 58m
United Airlines
Deal found 6/17![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:45 pm
PDX
- STL
1 stop10h 50m
Southwest
Sat 8/292:15 pm
STL
- PDX
1 stop6h 10m
Southwest
Deal found 6/18![Southwest logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Wed 9/236:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:45 am
PDX
- COU
1 stop8h 29m
American Airlines
Sat 7/257:26 pm
COU
- PDX
1 stop7h 29m
American Airlines
Deal found 6/20![American Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:10 pm
PDX
- STL
1 stop6h 08m
Delta
Mon 11/97:55 pm
STL
- PDX
1 stop5h 56m
Delta
Deal found 6/20![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:45 pm
PDX
- STL
1 stop10h 50m
Southwest
Wed 8/195:35 am
STL
- PDX
2 stops11h 50m
Southwest
Deal found 6/18![Southwest logo]()
$330
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:05 pm
PDX
- STL
1 stop5h 31m
Delta
Tue 12/85:30 pm
STL
- PDX
1 stop8h 17m
Delta
Deal found 6/17![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Mon 8/247:00 am
MCI
- PDX
1 stop8h 10m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/92:05 pm
PDX
- MCI
2 stops8h 30m
Southwest
Mon 7/139:15 pm
MCI
- PDX
1 stop6h 10m
Southwest
Deal found 6/19![Southwest logo]()
$334
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:55 pm
PDX
- STL
1 stop8h 41m
Delta
Mon 10/127:55 pm
STL
- PDX
1 stop5h 56m
Delta
Deal found 6/16![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:50 am
PDX
- MCI
Nonstop3h 25m
Alaska Airlines
Sun 11/227:00 am
MCI
- PDX
1 stop5h 50m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:40 am
PDX
- MCI
1 stop8h 45m
Southwest
Tue 10/202:45 pm
MCI
- PDX
2 stops8h 45m
Southwest
Deal found 6/16![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:10 am
PDX
- SGF
1 stop7h 01m
United Airlines
Sat 8/295:30 am
SGF
- PDX
1 stop6h 02m
United Airlines
Deal found 6/15![United Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:15 am
PDX
- MCI
1 stop5h 07m
Delta
Mon 11/162:15 pm
MCI
- PDX
1 stop6h 02m
Delta
Deal found 6/20![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:15 pm
PDX
- COU
1 stop8h 47m
American Airlines
Sun 7/266:32 pm
COU
- PDX
1 stop8h 18m
American Airlines
Deal found 6/19![American Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:52 am
PDX
- MCI
Nonstop3h 26m
Alaska Airlines
Wed 10/146:12 pm
MCI
- PDX
Nonstop3h 58m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:35 am
PDX
- MCI
1 stop5h 59m
Delta
Mon 8/105:40 pm
MCI
- PDX
1 stop7h 40m
Delta
Deal found 6/18![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:02 pm
PDX
- COU
1 stop9h 14m
United Airlines
Sat 8/2910:55 am
COU
- PDX
1 stop9h 58m
United Airlines
Deal found 6/20![United Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:50 am
PDX
- STL
2 stops8h 55m
Southwest
Wed 8/195:35 am
STL
- PDX
2 stops11h 50m
Southwest
Deal found 6/19![Southwest logo]()
$364
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:02 pm
PDX
- COU
1 stop9h 14m
United Airlines
Sat 9/510:55 am
COU
- PDX
1 stop9h 58m
United Airlines
Deal found 6/19![United Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:35 pm
PDX
- MCI
2 stops14h 50m
Southwest
Wed 10/213:05 pm
MCI
- PDX
2 stops8h 20m
Southwest
Deal found 6/16![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:14 pm
PDX
- JLN
1 stop7h 05m
United Airlines
Tue 11/108:52 am
JLN
- PDX
2 stops13h 41m
United Airlines
Deal found 6/16![United Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:07 pm
PDX
- MCI
1 stop5h 52m
Alaska Airlines
Mon 11/162:53 pm
MCI
- PDX
2 stops20h 42m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:45 pm
PDX
- STL
1 stop10h 05m
Southwest
Mon 9/216:05 am
STL
- PDX
2 stops10h 55m
Southwest
Deal found 6/19![Southwest logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:19 am
PDX
- MCI
1 stop7h 42m
Alaska Airlines
Sat 7/115:50 pm
MCI
- PDX
Nonstop3h 56m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:07 pm
PDX
- JLN
1 stop5h 37m
United Airlines
Sat 9/58:30 am
JLN
- PDX
1 stop9h 26m
United Airlines
Deal found 6/19![United Airlines logo]()
$475
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:20 pm
PDX
- MCI
2 stops13h 25m
Southwest
Fri 7/173:30 pm
MCI
- PDX
2 stops8h 35m
Southwest
Deal found 6/17![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:20 pm
PDX
- MCI
2 stops12h 40m
Southwest
Sat 8/85:40 am
MCI
- PDX
1 stop8h 10m
Southwest
Deal found 6/18![Southwest logo]()
$418
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:55 pm
PDX
- SGF
1 stop21h 26m
Delta
Tue 8/1811:38 am
SGF
- PDX
1 stop9h 17m
Delta
Deal found 6/19![Delta logo]()
$550
Last-minute flights from Portland to MissouriDiscover last-minute flight deals from Portland to Missouri. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Missouri. Data last updated June 21, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/258:42 pm
PDX
- STL
1 stop15h 24m
Frontier
Mon 6/292:56 pm
STL
- PDX
1 stop6h 51m
Frontier
Deal found 6/15![Frontier logo]()
$311
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:19 pm
PDX
- STL
1 stop17h 47m
Frontier
Fri 7/37:38 pm
STL
- PDX
1 stop23h 19m
Frontier
Deal found 6/17![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:19 pm
PDX
- STL
1 stop17h 47m
Frontier
Sun 7/57:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/17![Frontier logo]()
$324
This CheapOair deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/18![Frontier logo]()
$259
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:30 pm
PDX
- MCI
1 stop5h 30m
Delta
Tue 7/144:04 pm
MCI
- PDX
1 stop9h 14m
Delta
Deal found 6/16![Delta logo]()
$329
This CheapOair deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Wed 7/157:03 pm
STL
- PDX
1 stop25h 01m
Frontier
Deal found 6/18![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Sat 7/188:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Deal found 6/19![Frontier logo]()
$315
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- STL
1 stop24h 07m
Frontier
Thu 7/167:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Deal found 6/20![Frontier logo]()
$250
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:20 pm
PDX
- STL
1 stop8h 25m
Southwest
Sat 7/185:35 pm
STL
- PDX
Nonstop4h 05m
Southwest
Deal found 6/17![Southwest logo]()
$309
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:14 pm
PDX
- STL
1 stop5h 27m
Delta
Fri 7/177:55 pm
STL
- PDX
1 stop5h 49m
Delta
Deal found 6/17![Delta logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- MCI
1 stop17h 44m
Frontier
Tue 7/211:45 pm
MCI
- PDX
1 stop28h 51m
Frontier
Deal found 6/16![Frontier logo]()
$327
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Mon 8/38:08 pm
STL
- PDX
1 stop22h 23m
Frontier
Deal found 6/17![Frontier logo]()
$289
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 June 21, 2026.
Search for one-way flight options from Portland to Missouri. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:34 pm
PDX
- STL
1 stop12h 17m
Frontier
Deal found 6/20![Frontier logo]()
$126
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 6/18![Frontier logo]()
$129
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:21 pm
PDX
- STL
1 stop24h 02m
Frontier
Deal found 6/18![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:49 pm
PDX
- STL
1 stop22h 26m
Frontier
Deal found 6/20![Frontier logo]()
$131
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:49 pm
PDX
- MCI
1 stop18h 58m
Frontier
Deal found 6/17![Frontier logo]()
$136
This Trip.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1612:20 pm
PDX
- MCI
1 stop22h 40m
Frontier
Deal found 6/18![Frontier logo]()
$137
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:19 pm
PDX
- STL
1 stop17h 47m
Frontier
Deal found 6/17![Frontier logo]()
$139
This Gotogate deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:19 pm
PDX
- STL
1 stop17h 47m
Frontier
Deal found 6/18![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/18![Frontier logo]()
$144
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/16![Frontier logo]()
$145
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:22 pm
PDX
- MCI
1 stop20h 00m
Frontier
Deal found 6/17![Frontier logo]()
$150
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 June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $240 (Frontier) |
One-way from | $126 (Frontier) |
Popular in | July |
Cheapest in | November |
Average price | $401 |
Good round-trip deal | $377 or less |
Good one-way deal | $244 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 June 21, 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
Fri 10/16
3:10 pm-11:18 pm
1 stop6h 08m
Lambert-St Louis
Mon 10/26
2:15 pm-6:17 pm
1 stop6h 02m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 12/3
12:51 pm-10:06 pm
1 stop7h 15m
Lambert-St Louis
Tue 12/8
6:15 am-12:13 pm
1 stop7h 58m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 8/27
10:45 pm-11:35 am
1 stop10h 50m
Lambert-St Louis
Sat 8/29
2:15 pm-6:25 pm
1 stop6h 10m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Fri 11/6
3:10 pm-11:18 pm
1 stop6h 08m
Lambert-St Louis
Mon 11/9
7:55 pm-11:51 pm
1 stop5h 56m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 12/3
5:05 pm-12:36 am
1 stop5h 31m
Lambert-St Louis
Tue 12/8
5:30 pm-11:47 pm
1 stop8h 17m
$319
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Fri 10/9
10:55 pm-9:36 am
1 stop8h 41m
Lambert-St Louis
Mon 10/12
7:55 pm-11:51 pm
1 stop5h 56m
$319
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 11/12
10:15 am-5:22 pm
1 stop5h 07m
Kansas City
Mon 11/16
2:15 pm-6:17 pm
1 stop6h 02m
$329
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Wed 8/5
12:35 am-8:34 am
1 stop5h 59m
Kansas City
Mon 8/10
5:40 pm-11:20 pm
1 stop7h 40m
$329
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 8/13
10:45 pm-11:35 am
1 stop10h 50m
Lambert-St Louis
Wed 8/19
5:35 am-3:25 pm
2 stops11h 50m
$330
PortlandKansas City
PDX - MCI
PDXMCI
Portland
Thu 7/9
2:05 pm-12:35 am
2 stops8h 30m
Kansas City
Mon 7/13
9:15 pm-1:25 am
1 stop6h 10m
$334
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-COU
PDX-SGF
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-COU
PDX-SGF
What is the cheapest month to book a flight from Portland to Missouri?
Currently, December is the cheapest month in which you can book a flight from Portland to Missouri (average of $75). Flying from Portland to Missouri in July is currently the most expensive (average of $183). 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 June 21, 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.
Weekly flight availability from Portland to Missouri
Explore weekly flight availability from Portland to Missouri. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 21, 2026.
The most flights from PDX to USMO are scheduled on a Sunday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Portland to Missouri?
How far ahead should I book a flight from Portland to Missouri?
Booking 72 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.
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 June 21, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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
Complete your trip to Missouri by adding a car rental and/or hotel reservation to your travel itinerary.
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 June 21, 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$287 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$292 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$177 | Average$417 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$196 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$208 | Average$393 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$409 | FlexibilityNo cancel fee | On-time69% |