$96+ Cheap flights from St. Louis (STL) to Oregon
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Mar 2 — Mar 91
1 adult, Economy
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Find cheap flights from St. Louis to Oregon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Oregon
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Cheapest flights from St. Louis to OregonExplore the most affordable flight options available from St. Louis to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.
Explore the most affordable flight options available from St. Louis to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:12 pm
STL
- PDX
1 stop16h 57m
Frontier
Fri 3/1312:04 pm
PDX
- STL
1 stop19h 45m
Frontier
Deal found 1/29![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:12 pm
STL
- PDX
1 stop16h 57m
Frontier
Sun 3/1512:04 pm
PDX
- STL
1 stop19h 45m
Frontier
Deal found 1/29![Frontier logo]()
$199
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:12 pm
STL
- PDX
1 stop18h 50m
Frontier
Wed 4/221:48 pm
PDX
- STL
1 stop27h 24m
Frontier
Deal found 1/29![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:12 pm
STL
- PDX
1 stop16h 57m
Frontier
Mon 3/169:53 am
PDX
- STL
2 stops45h 56m
Frontier
Deal found 1/29![Frontier logo]()
$227
This Expedia deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:20 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Fri 9/1811:25 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$229
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:12 pm
STL
- PDX
1 stop16h 57m
Frontier
Mon 3/3012:52 pm
PDX
- STL
1 stop20h 27m
Frontier
Deal found 1/30![Frontier logo]()
$235
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:20 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Mon 9/141:50 pm
PDX
- STL
1 stop8h 09m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:59 pm
STL
- PDX
1 stop6h 55m
United Airlines
Thu 5/1410:55 pm
PDX
- STL
1 stop7h 23m
United Airlines
Deal found 1/30![United Airlines logo]()
$244
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:20 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Sat 9/1911:25 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:15 am
STL
- PDX
1 stop7h 20m
Delta
Wed 3/1111:15 pm
PDX
- STL
1 stop8h 31m
Delta
Deal found 1/29![Delta logo]()
$257
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:20 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Tue 5/1910:39 am
PDX
- STL
1 stop6h 21m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” 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 4/278:12 pm
STL
- PDX
1 stop18h 50m
Frontier
Fri 5/111:48 am
PDX
- STL
1 stop29h 24m
Frontier
Deal found 1/28![Frontier logo]()
$263
Best flights from St. Louis to OregonDiscover carefully curated flight deals from St. Louis to Oregon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 31, 2026.
Discover carefully curated flight deals from St. Louis to Oregon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 31, 2026.
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:45 pm
STL
- PDX
1 stop9h 57m
Delta
Sat 4/2512:30 am
PDX
- STL
1 stop6h 16m
Delta
Deal found 1/30![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:00 am
STL
- PDX
1 stop6h 58m
American Airlines
Sat 3/711:35 pm
PDX
- STL
1 stop7h 28m
American Airlines
Deal found 1/30![American Airlines logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
STL
- EUG
1 stop13h 40m
Alaska Airlines
Wed 4/151:07 pm
EUG
- STL
1 stop8h 52m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$270
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” 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 2/248:41 am
STL
- RDM
1 stop6h 17m
United Airlines
Sat 2/287:50 am
RDM
- STL
1 stop6h 37m
United Airlines
Deal found 1/28![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:30 am
STL
- EUG
2 stops10h 55m
Southwest
Sun 2/223:30 pm
EUG
- STL
1 stop7h 20m
Southwest
Deal found 1/30![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 4/136:45 pm
STL
- PDX
1 stop7h 08m
Delta
Mon 4/2711:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 1/31![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:20 am
STL
- PDX
1 stop7h 41m
American Airlines
Tue 4/2111:59 pm
PDX
- STL
1 stop9h 20m
American Airlines
Deal found 1/30![American Airlines logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/187:00 am
STL
- EUG
1 stop7h 30m
Alaska Airlines
Mon 4/68:01 am
EUG
- STL
1 stop28h 50m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:15 am
STL
- PDX
1 stop7h 20m
Delta
Tue 3/176:05 am
PDX
- STL
1 stop6h 19m
Delta
Deal found 1/29![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:11 pm
STL
- PDX
1 stop7h 31m
American Airlines
Mon 4/2011:59 pm
PDX
- STL
1 stop9h 20m
American Airlines
Deal found 1/30![American Airlines logo]()
$273
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:00 am
STL
- BOI
1 stop9h 29m
Alaska Airlines
Sat 4/118:20 am
BOI
- STL
1 stop14h 39m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:45 pm
STL
- PDX
2 stops12h 10m
Delta
Tue 4/211:32 pm
PDX
- STL
2 stops8h 53m
Delta
Deal found 1/30![Delta logo]()
$273
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:30 pm
STL
- RDM
1 stop6h 47m
United Airlines
Fri 3/61:13 pm
RDM
- STL
1 stop5h 28m
United Airlines
Deal found 1/29![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:15 am
STL
- PDX
1 stop7h 20m
Delta
Thu 3/125:02 pm
PDX
- STL
1 stop5h 19m
Delta
Deal found 1/29![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:47 pm
STL
- MFR
1 stop11h 12m
Alaska Airlines
Sun 3/12:46 pm
MFR
- STL
1 stop7h 13m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:45 pm
STL
- PDX
1 stop7h 08m
Delta
Mon 4/207:32 pm
PDX
- STL
2 stops12h 10m
Delta
Deal found 1/29![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:58 am
STL
- RDM
1 stop8h 04m
American Airlines
Fri 3/62:32 pm
RDM
- STL
1 stop7h 27m
American Airlines
Deal found 1/29![American Airlines logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:00 am
STL
- BOI
1 stop9h 29m
Alaska Airlines
Mon 4/276:00 am
BOI
- STL
1 stop8h 50m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:15 am
STL
- BOI
1 stop5h 51m
United Airlines
Sun 3/2912:04 pm
BOI
- STL
1 stop8h 04m
United Airlines
Deal found 1/29![United Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:20 pm
STL
- PDX
1 stop5h 48m
Delta
Sat 5/27:05 am
PDX
- STL
2 stops12h 27m
Delta
Deal found 1/29![Delta logo]()
$285
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:47 pm
STL
- BOI
1 stop8h 53m
Alaska Airlines
Fri 3/68:30 am
BOI
- STL
1 stop14h 29m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:47 pm
STL
- EUG
1 stop8h 44m
Alaska Airlines
Sun 2/229:01 am
EUG
- STL
1 stop12h 58m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:22 pm
STL
- BOI
2 stops10h 23m
Delta
Fri 3/610:41 am
BOI
- STL
2 stops11h 42m
Delta
Deal found 1/30![Delta logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/22:47 pm
STL
- RDM
1 stop8h 45m
Alaska Airlines
Fri 3/69:02 am
RDM
- STL
1 stop12h 57m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” 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 2/34:15 pm
STL
- MFR
1 stop6h 47m
United Airlines
Sat 2/75:00 am
MFR
- STL
1 stop6h 16m
United Airlines
Deal found 1/28![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:45 pm
STL
- BOI
1 stop6h 12m
Delta
Mon 5/411:35 pm
BOI
- STL
1 stop7h 55m
Delta
Deal found 1/30![Delta logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:00 am
STL
- YKM
1 stop10h 46m
Alaska Airlines
Thu 2/264:23 pm
YKM
- STL
1 stop5h 36m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:12 pm
STL
- BOI
2 stops10h 33m
Delta
Sun 3/296:15 pm
BOI
- STL
1 stop5h 06m
Delta
Deal found 1/29![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/23:40 pm
STL
- RDM
2 stops10h 05m
Delta
Fri 3/611:23 am
RDM
- STL
2 stops11h 02m
Delta
Deal found 1/31![Delta logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:00 am
STL
- EUG
1 stop7h 30m
Alaska Airlines
Wed 4/11:07 pm
EUG
- STL
1 stop8h 52m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$400
Last-minute flights from St. Louis to OregonDiscover last-minute flight deals from St. Louis to Oregon. Data last updated January 31, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Oregon. Data last updated January 31, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:50 pm
STL
- PDX
1 stop7h 15m
Southwest
Sun 2/156:45 am
PDX
- STL
1 stop7h 10m
Southwest
Deal found 1/29![Southwest logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:47 pm
STL
- EUG
1 stop8h 44m
Alaska Airlines
Sun 2/229:01 am
EUG
- STL
1 stop12h 58m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
STL
- PDX
2 stops10h 11m
Delta
Sun 2/225:45 am
PDX
- STL
1 stop5h 47m
Delta
Deal found 1/29![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” 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 2/216:10 am
STL
- PDX
1 stop8h 34m
Delta
Mon 2/237:35 pm
PDX
- STL
2 stops11h 57m
Delta
Deal found 1/28![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” 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 2/248:41 am
STL
- RDM
1 stop6h 17m
United Airlines
Sat 2/287:50 am
RDM
- STL
1 stop6h 37m
United Airlines
Deal found 1/28![United Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:00 am
STL
- YKM
1 stop10h 46m
Alaska Airlines
Thu 2/264:23 pm
YKM
- STL
1 stop5h 36m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:47 pm
STL
- MFR
1 stop11h 12m
Alaska Airlines
Sun 3/12:46 pm
MFR
- STL
1 stop7h 13m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:22 pm
STL
- BOI
2 stops10h 23m
Delta
Fri 3/610:41 am
BOI
- STL
2 stops11h 42m
Delta
Deal found 1/30![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 pm
STL
- BOI
1 stop6h 48m
United Airlines
Fri 3/62:40 pm
BOI
- STL
1 stop7h 54m
United Airlines
Deal found 1/30![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:36 pm
STL
- PDX
1 stop7h 41m
American Airlines
Fri 3/611:35 pm
PDX
- STL
1 stop8h 38m
American Airlines
Deal found 1/29![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/283:40 pm
STL
- PDX
2 stops9h 08m
Delta
Fri 3/65:00 pm
PDX
- STL
1 stop5h 25m
Delta
Deal found 1/30![Delta logo]()
$301
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/283:40 pm
STL
- PDX
2 stops9h 08m
Delta
Sun 3/15:00 pm
PDX
- STL
1 stop5h 25m
Delta
Deal found 1/30![Delta logo]()
$366
One-way flights from St. Louis to OregonSearch for one-way flight options from St. Louis to Oregon. Find affordable one-way fares based on user searches. Data last updated January 31, 2026.
Search for one-way flight options from St. Louis to Oregon. Find affordable one-way fares based on user searches. Data last updated January 31, 2026.
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:11 pm
STL
- PDX
1 stop22h 32m
Frontier
Deal found 1/29![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:16 pm
STL
- PDX
1 stop18h 46m
Frontier
Deal found 1/29![Frontier logo]()
$106
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:12 pm
STL
- PDX
1 stop16h 57m
Frontier
Deal found 1/30![Frontier logo]()
$117
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:00 am
STL
- MFR
1 stop7h 11m
Delta
Deal found 1/29![Delta logo]()
$119
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:31 pm
STL
- RDM
1 stop6h 47m
American Airlines
Deal found 1/30![American Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:55 pm
STL
- PDX
2 stops17h 07m
Frontier
Deal found 1/30![Frontier logo]()
$124
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:22 pm
STL
- RDM
2 stops10h 23m
Delta
Deal found 1/30![Delta logo]()
$124
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/252:22 pm
STL
- PDX
1 stop5h 54m
Delta
Deal found 1/31![Delta logo]()
$125
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:12 pm
STL
- PDX
1 stop7h 42m
Delta
Deal found 1/29![Delta logo]()
$129
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:40 pm
STL
- PDX
1 stop7h 13m
Delta
Deal found 1/29![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:12 pm
STL
- PDX
1 stop16h 51m
Frontier
Deal found 1/29![Frontier logo]()
$153
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/2811:25 am
STL
- PDX
2 stops11h 50m
United Airlines
Deal found 1/31![United Airlines logo]()
$154
Find flight deals from St. Louis to Oregon
Keep the following information in mind while searching for St. Louis to Oregon flight deals. Data was last updated January 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $152 (Kiwi.com) |
One-way from | $96 (CheapOair) |
Popular in | March |
Cheapest in | September |
Average price | $335 |
Good round-trip deal | $299 or less |
Good one-way deal | $163 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Oregon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 31, 2026.
Use the filters below to find and compare flights from St. Louis to Oregon that are best for you.
Fly from
St. Louis
Fly to
Oregon
Route
Depart
Return
Price
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Wed 4/22
1:45 pm-9:42 pm
1 stop9h 57m
Portland
Sat 4/25
12:30 am-8:46 am
1 stop6h 16m
$249
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Wed 3/4
6:00 am-10:58 am
1 stop6h 58m
Portland
Sat 3/7
11:35 pm-9:03 am
1 stop7h 28m
$249
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Mon 4/13
6:45 pm-11:53 pm
1 stop7h 08m
Portland
Mon 4/27
11:15 pm-9:42 am
1 stop8h 27m
$249
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 4/14
5:20 am-11:01 am
1 stop7h 41m
Portland
Tue 4/21
11:59 pm-11:19 am
1 stop9h 20m
$249
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Wed 3/11
7:15 am-12:35 pm
1 stop7h 20m
Portland
Tue 3/17
6:05 am-2:24 pm
1 stop6h 19m
$257
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Wed 4/8
7:00 am-6:40 pm
1 stop13h 40m
Eugene
Wed 4/15
1:07 pm-11:59 pm
1 stop8h 52m
$270
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Mon 4/13
6:11 pm-11:42 pm
1 stop7h 31m
Portland
Mon 4/20
11:59 pm-11:19 am
1 stop9h 20m
$273
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 4/14
1:45 pm-11:55 pm
2 stops12h 10m
Portland
Tue 4/21
1:32 pm-12:25 am
2 stops8h 53m
$273
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Wed 3/11
7:15 am-12:35 pm
1 stop7h 20m
Portland
Thu 3/12
5:02 pm-12:21 am
1 stop5h 19m
$277
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Wed 3/18
7:00 am-12:30 pm
1 stop7h 30m
Eugene
Mon 4/6
8:01 am-2:51 pm
1 stop28h 50m
$280
Showing 1-10 of 57 results
Best time to book a flight from St. Louis to Oregon
Have a flexible travel schedule? Discover the best time to fly to Oregon from St. Louis with our price prediction graph.
STL-PDX
STL-EUG
STL-RDM
STL-BOI
STL-MFR
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 St. Louis to Oregon
STL-USOR
STL-PDX
STL-EUG
STL-RDM
STL-BOI
What is the cheapest month to book a flight from St. Louis to Oregon?
Currently, June is the cheapest month in which you can book a flight from St. Louis to Oregon (average of $157). Flying from St. Louis to Oregon in March is currently the most expensive (average of $249). 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.
Reviews of airlines servicing Oregon
Get insights into the airlines that provide service to Oregon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oregon. Reviews last updated January 31, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from St. Louis to Oregon to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Oregon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for St. Louis to Oregon
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from St. Louis to Oregon
Discover the top 7 airlines that operate flights from St. Louis to Oregon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$245 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$188 | Average$513 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$204 | Average$414 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$516 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$480 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$338 | Average$520 | FlexibilityNo cancel fee | On-time85% |