$110+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
may. 29 — jun. 51
Round-trip
1 adult, Economy
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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 abril 29, 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 abril 29, 2026.
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
jue. 6/411:15 am
PDX
- STL
1 stop6h 56m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
sáb. 5/305:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mar. 6/210:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$277
This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/278:08 pm
STL
- PDX
1 stop22h 38m
Multiple Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
lun. 6/15:27 pm
STL
- BOI
2 stops20h 03m
Frontier
mar. 6/91:25 pm
BOI
- STL
1 stop28h 58m
Frontier
Deal found 4/29![Frontier logo]()
$281
This Trip.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mié. 6/36:51 pm
STL
- PDX
1 stop17h 29m
Frontier
lun. 6/811:15 am
PDX
- STL
1 stop6h 56m
Frontier
Deal found 4/27![Frontier logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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.
jue. 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
vie. 5/298:08 pm
STL
- PDX
2 stops17h 42m
Frontier
mar. 6/95:20 pm
PDX
- STL
1 stop24h 03m
Frontier
Deal found 4/28![Frontier logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
sáb. 9/125:59 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
mié. 9/2311:15 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$288
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/275:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
dom. 9/135:59 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
mar. 9/2211:15 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$290
This CheapOair deal was found by Cheapflights users on 4/24. 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.
vie. 5/155:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mar. 5/195:00 am
PDX
- STL
1 stop8h 16m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$293
This Expedia deal was found by Cheapflights users on 4/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
lun. 6/111:15 am
PDX
- STL
1 stop28h 51m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$295
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 abril 29, 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 abril 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
vie. 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mié. 5/271:59 pm
STL
- PDX
1 stop10h 03m
Delta
lun. 6/111:12 pm
PDX
- STL
1 stop8h 17m
Delta
Deal found 4/27![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/255:33 pm
STL
- PDX
1 stop6h 57m
United Airlines
vie. 7/3111:40 pm
PDX
- STL
1 stop7h 01m
United Airlines
Deal found 4/24![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/29. 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.
jue. 5/286:00 pm
STL
- PDX
1 stop8h 55m
Southwest
mié. 6/36:30 am
PDX
- STL
2 stops9h 25m
Southwest
Deal found 4/29![Southwest logo]()
$318
This Delta deal was found by Cheapflights users on 4/25. 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.
vie. 5/297:59 pm
STL
- PDX
1 stop5h 45m
Delta
lun. 6/111:12 pm
PDX
- STL
1 stop8h 17m
Delta
Deal found 4/25![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 5/295:29 pm
STL
- PDX
1 stop7h 18m
United Airlines
lun. 6/14:15 pm
PDX
- STL
1 stop5h 42m
United Airlines
Deal found 4/29![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 4/28. 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.
lun. 8/316:59 pm
STL
- PDX
1 stop6h 42m
Delta
dom. 9/66:00 am
PDX
- STL
1 stop5h 21m
Delta
Deal found 4/28![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/235:29 am
STL
- YKM
2 stops9h 46m
American Airlines
mar. 6/301:52 pm
YKM
- STL
1 stop8h 07m
American Airlines
Deal found 4/26![American Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mié. 7/17:23 pm
STL
- PDX
1 stop7h 27m
United Airlines
mié. 7/811:40 pm
PDX
- STL
1 stop7h 01m
United Airlines
Deal found 4/29![United Airlines logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/126:00 am
STL
- PDX
1 stop7h 39m
Alaska Airlines
sáb. 9/1911:15 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 4/28. 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.
mar. 9/156:59 pm
STL
- PDX
1 stop6h 42m
Delta
lun. 9/2112:40 am
PDX
- STL
1 stop6h 00m
Delta
Deal found 4/28![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/205:35 pm
STL
- PDX
Nonstop4h 05m
Southwest
mié. 6/249:20 pm
PDX
- STL
1 stop8h 10m
Southwest
Deal found 4/28![Southwest logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
vie. 5/295:33 pm
STL
- EUG
1 stop7h 17m
Alaska Airlines
mar. 6/24:00 pm
EUG
- STL
1 stop22h 37m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mar. 6/306:55 pm
STL
- BOI
1 stop6h 30m
Southwest
mar. 7/74:05 pm
BOI
- STL
1 stop5h 05m
Southwest
Deal found 4/27![Southwest logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mar. 9/16:00 am
STL
- EUG
1 stop9h 37m
Alaska Airlines
mié. 9/29:56 am
EUG
- STL
1 stop6h 42m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/245:10 am
STL
- BOI
2 stops8h 58m
United Airlines
jue. 6/45:46 pm
BOI
- STL
1 stop5h 11m
United Airlines
Deal found 4/26![United Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/137:59 pm
STL
- MFR
1 stop5h 43m
Delta
mié. 5/275:15 am
MFR
- STL
1 stop6h 17m
Delta
Deal found 4/26![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 4/26. 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.
vie. 8/148:25 am
STL
- EUG
1 stop8h 45m
Southwest
mar. 8/181:40 pm
EUG
- STL
1 stop5h 30m
Southwest
Deal found 4/26![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mar. 8/118:25 am
STL
- EUG
1 stop7h 40m
Southwest
mar. 9/812:25 pm
EUG
- STL
2 stops8h 10m
Southwest
Deal found 4/27![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 4/28. 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.
jue. 5/215:10 am
STL
- BOI
1 stop5h 26m
United Airlines
dom. 5/245:46 pm
BOI
- STL
1 stop5h 11m
United Airlines
Deal found 4/28![United Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
lun. 10/197:00 am
STL
- RDM
1 stop7h 45m
Alaska Airlines
vie. 10/2311:58 am
RDM
- STL
1 stop10h 01m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/275:36 pm
STL
- EUG
2 stops8h 07m
Delta
lun. 6/15:10 am
EUG
- STL
1 stop6h 22m
Delta
Deal found 4/24![Delta logo]()
$412
This Southwest deal was found by Cheapflights users on 4/25. 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.
jue. 7/96:45 pm
STL
- BOI
1 stop8h 00m
Southwest
mar. 7/145:30 am
BOI
- STL
1 stop5h 50m
Southwest
Deal found 4/25![Southwest logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
jue. 6/47:41 pm
STL
- BOI
1 stop16h 22m
Alaska Airlines
dom. 6/79:00 am
BOI
- STL
1 stop6h 37m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 4/29. 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.
lun. 6/226:30 am
STL
- EUG
2 stops11h 35m
Delta
mié. 6/245:30 am
EUG
- STL
1 stop6h 06m
Delta
Deal found 4/29![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 6/305:10 am
STL
- MFR
2 stops8h 54m
United Airlines
mié. 7/86:35 pm
MFR
- STL
2 stops12h 06m
United Airlines
Deal found 4/28![United Airlines logo]()
$460
This Southwest deal was found by Cheapflights users on 4/29. 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.
jue. 7/306:40 pm
STL
- EUG
1 stop6h 00m
Southwest
lun. 8/32:45 pm
EUG
- STL
1 stop5h 55m
Southwest
Deal found 4/29![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
jue. 7/27:55 pm
STL
- EUG
1 stop6h 03m
Delta
mar. 7/74:43 pm
EUG
- STL
1 stop5h 58m
Delta
Deal found 4/27![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 4/28. 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.
dom. 5/245:10 am
STL
- RDM
2 stops9h 02m
United Airlines
sáb. 5/301:22 pm
RDM
- STL
1 stop5h 35m
United Airlines
Deal found 4/28![United Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/87:55 pm
STL
- EUG
1 stop6h 00m
Delta
sáb. 7/181:40 pm
EUG
- STL
1 stop5h 20m
Delta
Deal found 4/26![Delta logo]()
$427
Last-minute flights from St. Louis to OregonDiscover last-minute flight deals from St. Louis to Oregon. Data last updated abril 29, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Oregon. Data last updated abril 29, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/24. 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.
vie. 5/155:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mar. 5/195:00 am
PDX
- STL
1 stop8h 16m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mar. 5/196:51 pm
STL
- PDX
2 stops42h 59m
Frontier
mar. 5/265:46 pm
PDX
- STL
1 stop23h 37m
Frontier
Deal found 4/27![Frontier logo]()
$304
This United Airlines deal was found by Cheapflights users on 4/25. 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.
sáb. 5/237:23 pm
STL
- PDX
1 stop7h 27m
United Airlines
mar. 5/2611:40 pm
PDX
- STL
1 stop6h 59m
United Airlines
Deal found 4/25![United Airlines logo]()
$297
This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/278:08 pm
STL
- PDX
1 stop22h 38m
Multiple Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$280
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/275:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
mié. 5/271:59 pm
STL
- PDX
1 stop10h 03m
Delta
lun. 6/111:12 pm
PDX
- STL
1 stop8h 17m
Delta
Deal found 4/27![Delta logo]()
$303
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
jue. 6/411:15 am
PDX
- STL
1 stop6h 56m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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.
jue. 5/285:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mié. 6/310:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
vie. 5/298:08 pm
STL
- PDX
2 stops17h 42m
Frontier
mar. 6/95:20 pm
PDX
- STL
1 stop24h 03m
Frontier
Deal found 4/28![Frontier logo]()
$285
This Expedia deal was found by Cheapflights users on 4/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Multiple Airlines
lun. 6/111:15 am
PDX
- STL
1 stop28h 51m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 4/28. 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.
vie. 5/297:00 am
STL
- PDX
1 stop7h 33m
Delta
mié. 6/103:00 pm
PDX
- STL
1 stop6h 23m
Delta
Deal found 4/28![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
sáb. 5/305:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
mar. 6/210:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$277
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 abril 29, 2026.
Search for one-way flight options from St. Louis to Oregon. Find affordable one-way fares based on user searches. Data last updated abril 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mar. 5/268:08 pm
STL
- PDX
2 stops41h 42m
Frontier
Deal found 4/28![Frontier logo]()
$110
This CheapOair deal was found by Cheapflights users on 4/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/158:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 4/26![Frontier logo]()
$117
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/248:08 pm
STL
- PDX
1 stop22h 45m
Frontier
Deal found 4/26![Frontier logo]()
$134
This Trip.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
sáb. 7/252:52 pm
STL
- PDX
1 stop29h 12m
Frontier
Deal found 4/27![Frontier logo]()
$135
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/38:08 pm
STL
- BOI
1 stop17h 30m
Frontier
Deal found 4/28![Frontier logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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.
mié. 5/275:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/295:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$145
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/198:53 am
STL
- PDX
1 stop5h 37m
Delta
Deal found 4/24![Delta logo]()
$149
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/247:46 pm
STL
- PDX
1 stop23h 38m
Frontier
Deal found 4/26![Frontier logo]()
$154
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/167:55 pm
STL
- PDX
1 stop5h 51m
Delta
Deal found 4/26![Delta logo]()
$155
This CheapOair deal was found by Cheapflights users on 4/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/178:08 pm
STL
- BOI
1 stop17h 22m
Frontier
Deal found 4/26![Frontier logo]()
$157
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
sáb. 7/255:35 pm
STL
- PDX
Nonstop4h 05m
Southwest
Deal found 4/27![Southwest logo]()
$158
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 abril 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $270 (Expedia) |
One-way from | $110 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $325 |
Good round-trip deal | $329 or less |
Good one-way deal | $128 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 abril 29, 2026.
Use the filters below to find and compare flights from St. Louis to Oregon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
vie. 5/29
5:33 pm-7:50 pm
Nonstop4h 17m
Portland
mié. 6/3
10:37 am-4:37 pm
Nonstop4h 00m
$283
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
mié. 5/27
1:59 pm-10:02 pm
1 stop10h 03m
Portland
lun. 6/1
11:12 pm-9:29 am
1 stop8h 17m
$303
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
sáb. 7/25
5:33 pm-10:30 pm
1 stop6h 57m
Portland
vie. 7/31
11:40 pm-8:41 am
1 stop7h 01m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
vie. 5/29
7:59 pm-11:44 pm
1 stop5h 45m
Portland
lun. 6/1
11:12 pm-9:29 am
1 stop8h 17m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
vie. 5/29
5:29 pm-10:47 pm
1 stop7h 18m
Portland
lun. 6/1
4:15 pm-11:57 pm
1 stop5h 42m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
lun. 8/31
6:59 pm-11:41 pm
1 stop6h 42m
Portland
dom. 9/6
6:00 am-1:21 pm
1 stop5h 21m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
mar. 9/15
6:59 pm-11:41 pm
1 stop6h 42m
Portland
lun. 9/21
12:40 am-8:40 am
1 stop6h 00m
$309
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
jue. 5/28
6:00 pm-12:55 am
1 stop8h 55m
Portland
mié. 6/3
6:30 am-5:55 pm
2 stops9h 25m
$318
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
mié. 7/1
7:23 pm-12:50 am
1 stop7h 27m
Portland
mié. 7/8
11:40 pm-8:41 am
1 stop7h 01m
$329
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
sáb. 9/12
6:00 am-11:39 am
1 stop7h 39m
Portland
sáb. 9/19
11:15 am-5:03 pm
Nonstop3h 48m
$368
Showing 1-10 of 60 resultsSorted by cheapest first
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-BOI
STL-PDX
STL-MFR
STL-EUG
STL-RDM
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-BOI
STL-PDX
STL-MFR
STL-EUG
How far ahead should I book a flight from St. Louis to Oregon?
The price you pay for your flight from St. Louis to Oregon may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Oregon?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Oregon (average of $94). Flying from St. Louis to Oregon in November is currently the most expensive (average of $228). 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 STL to OR?
Find hourly flight availability from St. Louis to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 29, 2026.
When flying from St. Louis to Oregon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from St. Louis to Oregon?
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 abril 29, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Alternative routes for St. Louis to Oregon
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Complete your trip
Complete your trip to Oregon by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Oregon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Oregon flights
Browse other St. Louis and Oregon flight options. Last updated on abril 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Oregon flights
Consider these flights traveling from St. Louis to Oregon.
Top 6 airlines flying from St. Louis to Oregon
Discover the top 6 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 abril 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$141 | Average$261 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$380 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$186 | Average$306 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$226 | Average$439 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$244 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$249 | Average$407 | FlexibilityNo cancel fee | On-time75% |