$115+ Cheap flights from Missouri to Portland (PDX)
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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Aug 25 — Sep 11
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Missouri to PortlandExplore the most affordable flight options available from Missouri to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
Explore the most affordable flight options available from Missouri to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 9/1911:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$297
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/22![Frontier logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Sun 8/3012:20 pm
PDX
- STL
1 stop28h 53m
Frontier
Deal found 7/26![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/277:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Thu 9/312:20 pm
PDX
- STL
2 stops27h 02m
Frontier
Deal found 7/26![Frontier logo]()
$304
This CheapOair deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/101:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Wed 8/195:56 pm
PDX
- MCI
1 stop17h 24m
Frontier
Deal found 7/24![Frontier logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Sat 9/512:20 pm
PDX
- STL
1 stop28h 53m
Frontier
Deal found 7/26![Frontier logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 8/296:20 am
PDX
- STL
1 stop5h 46m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/316:14 pm
MCI
- PDX
Nonstop3h 56m
Alaska Airlines
Sat 11/75:05 am
PDX
- MCI
1 stop6h 54m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$307
This Trip.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/21![Frontier logo]()
$308
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/221:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Sat 8/2911:40 am
PDX
- MCI
Nonstop3h 20m
Southwest
Deal found 7/25![Southwest logo]()
$308
This CheapOair deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Sun 8/166:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Deal found 7/23![Frontier logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:38 pm
MCI
- PDX
1 stop29h 33m
Frontier
Tue 9/15:56 pm
PDX
- MCI
2 stops14h 45m
Frontier
Deal found 7/26![Frontier logo]()
$310
Best flights from Missouri to PortlandDiscover carefully curated flight deals from Missouri to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
Discover carefully curated flight deals from Missouri to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 9/1911:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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
STL
- PDX
Nonstop4h 10m
Southwest
Wed 8/267:05 am
PDX
- STL
1 stop9h 10m
Southwest
Deal found 7/26![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:45 pm
STL
- PDX
1 stop5h 54m
Delta
Sun 9/65:45 am
PDX
- STL
1 stop5h 53m
Delta
Deal found 7/23![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 10/101:48 pm
MCI
- PDX
2 stops9h 12m
United Airlines
Sat 10/174:07 pm
PDX
- MCI
1 stop5h 37m
United Airlines
Deal found 7/22![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/126:41 pm
COU
- PDX
1 stop7h 18m
American Airlines
Sat 8/155:18 am
PDX
- COU
1 stop9h 29m
American Airlines
Deal found 7/24![American Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 10/225:05 am
STL
- PDX
1 stop6h 45m
Southwest
Sun 10/2511:35 pm
PDX
- STL
1 stop7h 25m
Southwest
Deal found 7/22![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/212:48 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Tue 8/257:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:01 pm
SGF
- PDX
1 stop8h 58m
Delta
Sun 9/1310:57 pm
PDX
- SGF
1 stop9h 45m
Delta
Deal found 7/21![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:30 am
SGF
- PDX
1 stop6h 02m
United Airlines
Sat 8/298:17 am
PDX
- SGF
1 stop7h 45m
United Airlines
Deal found 7/25![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/98:00 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Sat 8/151:35 pm
PDX
- MCI
1 stop6h 25m
Southwest
Deal found 7/23![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 10/146:14 pm
MCI
- PDX
Nonstop3h 56m
Alaska Airlines
Sun 10/182:30 pm
PDX
- MCI
1 stop7h 29m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 9/255:06 pm
SGF
- PDX
2 stops9h 28m
United Airlines
Sat 9/264:07 pm
PDX
- SGF
1 stop5h 35m
United Airlines
Deal found 7/23![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/233:19 pm
SGF
- PDX
1 stop8h 28m
Delta
Mon 9/2811:10 pm
PDX
- SGF
2 stops13h 24m
Delta
Deal found 7/25![Delta logo]()
$356
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 9/111:45 am
MCI
- PDX
2 stops8h 00m
Southwest
Wed 9/1611:35 am
PDX
- MCI
2 stops7h 40m
Southwest
Deal found 7/23![Southwest logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/246:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Wed 8/2611:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Sun 9/203:11 pm
COU
- PDX
1 stop9h 41m
United Airlines
Sat 9/269:00 am
PDX
- COU
2 stops9h 33m
United Airlines
Deal found 7/25![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/247:15 pm
MCI
- PDX
1 stop6h 00m
Southwest
Mon 8/316:05 am
PDX
- MCI
1 stop7h 00m
Southwest
Deal found 7/25![Southwest logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/132:53 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Sun 9/207:03 am
PDX
- MCI
Nonstop3h 35m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:43 pm
MCI
- PDX
2 stops11h 02m
United Airlines
Wed 9/237:02 am
PDX
- MCI
1 stop7h 10m
United Airlines
Deal found 7/21![United Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:19 pm
SGF
- PDX
1 stop8h 28m
Delta
Sun 9/2011:10 pm
PDX
- SGF
2 stops13h 24m
Delta
Deal found 7/21![Delta logo]()
$414
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/134:00 pm
MCI
- PDX
1 stop9h 15m
Southwest
Thu 8/2012:40 pm
PDX
- MCI
2 stops9h 30m
Southwest
Deal found 7/25![Southwest logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/306:14 pm
MCI
- PDX
Nonstop3h 56m
Alaska Airlines
Mon 11/96:05 am
PDX
- MCI
1 stop5h 54m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/175:15 pm
MCI
- PDX
1 stop7h 50m
Southwest
Thu 8/2012:40 pm
PDX
- MCI
2 stops9h 30m
Southwest
Deal found 7/25![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/294:00 pm
SGF
- PDX
1 stop7h 44m
Delta
Fri 9/43:25 pm
PDX
- SGF
2 stops17h 28m
Delta
Deal found 7/22![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:30 am
JLN
- PDX
2 stops11h 20m
United Airlines
Sat 8/297:16 am
PDX
- JLN
1 stop9h 30m
United Airlines
Deal found 7/25![United Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/316:35 am
STL
- PDX
1 stop8h 35m
Alaska Airlines
Sun 9/611:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/216:05 am
STL
- PDX
2 stops10h 55m
Southwest
Wed 8/2610:35 am
PDX
- STL
2 stops9h 05m
Southwest
Deal found 7/22![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:05 pm
SGF
- PDX
1 stop6h 00m
United Airlines
Fri 9/1110:50 am
PDX
- SGF
2 stops10h 31m
United Airlines
Deal found 7/21![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/99:55 pm
STL
- PDX
Nonstop4h 10m
Southwest
Sun 8/1611:30 pm
PDX
- STL
1 stop9h 00m
Southwest
Deal found 7/23![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 9/253:19 pm
COU
- PDX
1 stop9h 04m
United Airlines
Tue 9/2910:43 am
PDX
- COU
2 stops10h 12m
United Airlines
Deal found 7/22![United Airlines logo]()
$421
Last-minute flights from Missouri to PortlandDiscover last-minute flight deals from Missouri to Portland. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Portland. Data last updated July 26, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/67:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/24![Frontier logo]()
$312
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/22![Frontier logo]()
$298
This CheapOair deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/97:10 pm
STL
- PDX
1 stop23h 44m
Frontier
Sun 8/166:49 pm
PDX
- STL
1 stop21h 26m
Frontier
Deal found 7/23![Frontier logo]()
$309
This CheapOair deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/101:45 pm
MCI
- PDX
1 stop28h 46m
Frontier
Wed 8/195:56 pm
PDX
- MCI
1 stop17h 24m
Frontier
Deal found 7/24![Frontier logo]()
$305
This Trip.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:08 pm
STL
- PDX
1 stop22h 43m
Frontier
Mon 8/175:49 pm
PDX
- STL
1 stop22h 01m
Frontier
Deal found 7/21![Frontier logo]()
$308
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:08 pm
STL
- PDX
Nonstop4h 12m
Alaska Airlines
Sat 8/2911:16 am
PDX
- STL
Nonstop3h 54m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/221:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Sat 8/2911:40 am
PDX
- MCI
Nonstop3h 20m
Southwest
Deal found 7/25![Southwest logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Sun 8/3012:20 pm
PDX
- STL
1 stop28h 53m
Frontier
Deal found 7/26![Frontier logo]()
$300
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/252:48 pm
MCI
- PDX
Nonstop3h 52m
Alaska Airlines
Sat 9/55:07 am
PDX
- MCI
1 stop6h 45m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/277:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Thu 9/312:20 pm
PDX
- STL
2 stops27h 02m
Frontier
Deal found 7/26![Frontier logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Sat 9/512:20 pm
PDX
- STL
1 stop28h 53m
Frontier
Deal found 7/26![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:38 pm
MCI
- PDX
1 stop29h 33m
Frontier
Tue 9/15:56 pm
PDX
- MCI
2 stops14h 45m
Frontier
Deal found 7/26![Frontier logo]()
$310
One-way flights from Missouri to PortlandSearch for one-way flight options from Missouri to Portland. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
Search for one-way flight options from Missouri to Portland. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 8/241:38 pm
MCI
- PDX
1 stop29h 33m
Frontier
Deal found 7/23![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 7/22![Frontier logo]()
$120
This Priceline deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/221:38 pm
MCI
- PDX
1 stop5h 33m
Frontier
Deal found 7/22![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/247:58 pm
STL
- PDX
1 stop23h 13m
Frontier
Deal found 7/22![Frontier logo]()
$124
This Southwest deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:35 pm
MCI
- PDX
Nonstop3h 35m
Southwest
Deal found 7/21![Southwest logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/242:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/25![Frontier logo]()
$125
This Expedia deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/21![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 10/208:10 pm
STL
- PDX
1 stop22h 25m
Frontier
Deal found 7/23![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” 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 10/212:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/23![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 9/242:17 pm
MCI
- PDX
1 stop28h 18m
Frontier
Deal found 7/22![Frontier logo]()
$128
This Trip.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” 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 8/206:45 pm
STL
- PDX
1 stop24h 36m
Frontier
Deal found 7/22![Frontier logo]()
$129
This American Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:49 am
MCI
- PDX
1 stop9h 05m
American Airlines
Deal found 7/21![American Airlines logo]()
$129
Find flight deals from Missouri to Portland
Keep the following information in mind while searching for Missouri to Portland flight deals. Data was last updated July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $270 (Kiwi.com) |
One-way from | $115 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $443 |
Good round-trip deal | $337 or less |
Good one-way deal | $178 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Portland 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 26, 2026.
Use the filters below to find and compare flights from Missouri to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 9/12
6:08 pm-8:20 pm
Nonstop4h 12m
Portland
Sat 9/19
11:16 am-5:10 pm
Nonstop3h 54m
$297
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Sat 8/22
8:30 am-10:40 am
Nonstop4h 10m
Portland
Wed 8/26
7:05 am-6:15 pm
1 stop9h 10m
$313
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 10/22
5:05 am-9:50 am
1 stop6h 45m
Portland
Sun 10/25
11:35 pm-9:00 am
1 stop7h 25m
$324
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Sun 8/9
8:00 pm-9:35 pm
Nonstop3h 35m
Portland
Sat 8/15
1:35 pm-10:00 pm
1 stop6h 25m
$324
Quickest round-trip
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Fri 8/21
2:48 pm-4:40 pm
Nonstop3h 52m
Portland
Tue 8/25
7:03 am-12:38 pm
Nonstop3h 35m
$327
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Tue 9/1
11:45 am-5:45 pm
2 stops8h 00m
Portland
Wed 9/16
11:35 am-9:15 pm
2 stops7h 40m
$327
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 9/3
7:45 pm-11:39 pm
1 stop5h 54m
Portland
Sun 9/6
5:45 am-1:38 pm
1 stop5h 53m
$329
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Sat 10/10
1:48 pm-9:00 pm
2 stops9h 12m
Portland
Sat 10/17
4:07 pm-11:44 pm
1 stop5h 37m
$334
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Wed 10/14
6:14 pm-8:10 pm
Nonstop3h 56m
Portland
Sun 10/18
2:30 pm-11:59 pm
1 stop7h 29m
$337
Kansas CityPortland
MCI - PDX
MCIPDX
Kansas City
Mon 8/24
7:15 pm-11:15 pm
1 stop6h 00m
Portland
Mon 8/31
6:05 am-3:05 pm
1 stop7h 00m
$339
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Missouri with our price prediction graph.
MCI-PDX
STL-PDX
SGF-PDX
COU-PDX
JLN-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 Portland
USMO-PDX
MCI-PDX
STL-PDX
SGF-PDX
COU-PDX
What is the cheapest month to book a flight from Missouri to Portland?
Currently, February is the cheapest month in which you can book a flight from Missouri to Portland (average of $230). Flying from Missouri to Portland in July is currently the most expensive (average of $435). 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 PDX?
Find hourly flight availability from Missouri to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 26, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from Missouri to Portland by exploring options for tickets in the afternoon.
How much does it cost to fly round-trip from Missouri to Portland?
Airfare is below average for this route at the moment.
Missouri to Portland flights typically cost between $339 and $482 in August.The cheapest round-trip price found within the last 5 days was $270 on Frontier (Aug 21-Aug 26).
How far ahead should I book a flight from Missouri to Portland?
Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Missouri to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Vancouver
Longview
Lake Oswego
Hillsboro
Kelso
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Portland
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Complete your trip
Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Portland by cabin class
Find flights from Missouri to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Portland flights
Browse other Missouri and Portland flight options. Last updated on July 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 26, 2026.
Missouri to Portland flights
Consider these flights traveling from Missouri to Portland.
Top 7 airlines flying from Missouri to Portland
Discover the top 7 airlines that operate flights from Missouri to Portland. 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 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$148 | Average$340 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$167 | Average$261 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$357 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$182 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$186 | Average$403 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$391 | FlexibilityNo cancel fee | On-time69% |