$76+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Apr 16 — Apr 231
Round-trip
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
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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 March 17, 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 March 17, 2026.
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Mon 5/118:46 pm
PDX
- STL
1 stop19h 20m
Frontier
Deal found 3/15![Frontier logo]()
$210
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:45 pm
STL
- PDX
1 stop7h 08m
Delta
Wed 4/2211:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/16![Delta logo]()
$217
This Mytrip deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:16 pm
STL
- PDX
1 stop10h 35m
Frontier
Sun 5/179:46 pm
PDX
- STL
1 stop20h 37m
Frontier
Deal found 3/15![Frontier logo]()
$220
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:51 pm
STL
- PDX
1 stop28h 00m
Frontier
Mon 5/188:46 pm
PDX
- STL
1 stop19h 20m
Frontier
Deal found 3/16![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/258:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Tue 4/2812:38 pm
PDX
- STL
2 stops32h 41m
Frontier
Deal found 3/14![Frontier logo]()
$227
This Orbitz deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:55 pm
STL
- PDX
1 stop13h 04m
Frontier
Sun 4/2611:15 am
PDX
- STL
1 stop6h 06m
Frontier
Deal found 3/13![Frontier logo]()
$231
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:59 pm
STL
- PDX
1 stop6h 55m
United Airlines
Mon 5/187:45 pm
PDX
- STL
1 stop8h 02m
United Airlines
Deal found 3/13![United Airlines logo]()
$232
This Expedia deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Fri 5/2210:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:20 pm
STL
- PDX
1 stop7h 05m
Southwest
Tue 5/192:35 pm
PDX
- STL
1 stop6h 40m
Southwest
Deal found 3/15![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:45 pm
STL
- PDX
2 stops9h 00m
Southwest
Mon 5/185:10 am
PDX
- STL
1 stop8h 15m
Southwest
Deal found 3/13![Southwest logo]()
$238
This Expedia deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:55 pm
STL
- PDX
1 stop13h 04m
Multiple Airlines
Tue 4/212:42 pm
PDX
- STL
1 stop7h 17m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$239
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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.
Sat 4/48:16 pm
STL
- BOI
1 stop15h 52m
Frontier
Sun 4/1212:03 pm
BOI
- STL
1 stop20h 45m
Frontier
Deal found 3/12![Frontier logo]()
$240
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 March 17, 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 March 17, 2026.
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:45 pm
STL
- PDX
1 stop7h 08m
Delta
Wed 4/2211:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/16![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/73:50 pm
STL
- BOI
1 stop8h 07m
Alaska Airlines
Wed 4/82:22 pm
BOI
- STL
1 stop8h 37m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:30 pm
STL
- PDX
1 stop7h 25m
Southwest
Sat 6/134:25 pm
PDX
- STL
1 stop6h 10m
Southwest
Deal found 3/12![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 5/511:15 am
STL
- PDX
2 stops11h 54m
United Airlines
Sat 5/97:45 pm
PDX
- STL
2 stops13h 03m
United Airlines
Deal found 3/12![United Airlines logo]()
$337
This Expedia deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/77:00 am
STL
- EUG
1 stop18h 58m
Alaska Airlines
Wed 4/81:07 pm
EUG
- STL
1 stop8h 52m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/76:12 pm
STL
- BOI
1 stop4h 59m
Delta
Sat 4/118:00 am
BOI
- STL
1 stop5h 43m
Delta
Deal found 3/12![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:35 am
STL
- EUG
1 stop6h 10m
Southwest
Tue 4/2811:20 am
EUG
- STL
1 stop8h 40m
Southwest
Deal found 3/16![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/73:05 pm
STL
- EUG
2 stops10h 45m
Delta
Wed 4/85:15 am
EUG
- STL
1 stop6h 02m
Delta
Deal found 3/12![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:00 am
STL
- PDX
1 stop8h 43m
United Airlines
Tue 5/127:15 am
PDX
- STL
2 stops11h 28m
United Airlines
Deal found 3/12![United Airlines logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 am
STL
- YKM
1 stop8h 20m
Alaska Airlines
Sat 4/251:57 pm
YKM
- STL
1 stop8h 02m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:46 pm
STL
- EUG
2 stops12h 12m
Delta
Tue 4/286:30 am
EUG
- STL
2 stops8h 56m
Delta
Deal found 3/16![Delta logo]()
$310
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 5/193:55 pm
STL
- EUG
1 stop8h 05m
Southwest
Sun 5/246:40 am
EUG
- STL
1 stop8h 35m
Southwest
Deal found 3/13![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/78:54 am
STL
- BOI
2 stops12h 19m
United Airlines
Wed 4/85:00 am
BOI
- STL
1 stop7h 08m
United Airlines
Deal found 3/12![United Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:41 pm
STL
- PDX
1 stop16h 06m
Alaska Airlines
Mon 5/1810:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:20 pm
STL
- MFR
2 stops11h 00m
Delta
Sun 4/265:10 am
MFR
- STL
1 stop6h 13m
Delta
Deal found 3/16![Delta logo]()
$328
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:25 am
STL
- BOI
2 stops9h 00m
Southwest
Sun 4/264:10 pm
BOI
- STL
1 stop6h 35m
Southwest
Deal found 3/12![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:10 am
STL
- MFR
2 stops14h 27m
United Airlines
Sat 4/1812:50 pm
MFR
- STL
1 stop6h 04m
United Airlines
Deal found 3/12![United Airlines logo]()
$372
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
STL
- MFR
1 stop14h 10m
Alaska Airlines
Sat 4/181:22 pm
MFR
- STL
1 stop8h 37m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:45 pm
STL
- EUG
1 stop7h 02m
Delta
Fri 4/1711:09 am
EUG
- STL
2 stops11h 16m
Delta
Deal found 3/16![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:40 pm
STL
- PDX
1 stop8h 25m
Southwest
Sun 8/98:00 pm
PDX
- STL
1 stop11h 55m
Southwest
Deal found 3/16![Southwest logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:33 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Mon 7/1310:45 am
PDX
- STL
Nonstop3h 48m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/276:45 pm
STL
- PDX
1 stop7h 08m
Delta
Wed 5/69:05 am
PDX
- STL
2 stops13h 20m
Delta
Deal found 3/12![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/105:15 pm
STL
- BOI
2 stops8h 45m
Southwest
Wed 4/153:15 pm
BOI
- STL
1 stop5h 30m
Southwest
Deal found 3/14![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 3/15![Delta logo]()
$342
This Expedia deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Wed 5/137:41 pm
STL
- MFR
1 stop23h 23m
Alaska Airlines
Wed 5/204:11 pm
MFR
- STL
1 stop22h 26m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:10 am
STL
- RDM
2 stops9h 01m
United Airlines
Mon 8/179:45 am
RDM
- STL
2 stops12h 05m
United Airlines
Deal found 3/13![United Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:45 pm
STL
- BOI
1 stop5h 45m
Southwest
Mon 4/204:20 pm
BOI
- STL
1 stop6h 30m
Southwest
Deal found 3/16![Southwest logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 6/225:33 pm
STL
- PDX
Nonstop4h 10m
Alaska Airlines
Thu 6/255:00 am
PDX
- STL
1 stop6h 55m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/166:45 pm
STL
- MFR
1 stop7h 07m
Delta
Mon 4/2011:14 am
MFR
- STL
2 stops11h 11m
Delta
Deal found 3/12![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 5/195:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Fri 5/225:46 pm
PDX
- STL
1 stop19h 30m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$400
Last-minute flights from St. Louis to OregonDiscover last-minute flight deals from St. Louis to Oregon. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Oregon. Data last updated March 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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.
Sat 4/48:16 pm
STL
- BOI
1 stop15h 52m
Frontier
Sun 4/1212:03 pm
BOI
- STL
1 stop20h 45m
Frontier
Deal found 3/12![Frontier logo]()
$240
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
STL
- PDX
1 stop6h 48m
American Airlines
Sat 4/1811:47 pm
PDX
- STL
1 stop6h 37m
American Airlines
Deal found 3/13![American Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/59:10 am
STL
- PDX
1 stop7h 59m
United Airlines
Thu 4/1610:56 pm
PDX
- STL
1 stop7h 29m
United Airlines
Deal found 3/12![United Airlines logo]()
$257
This Expedia deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/73:50 pm
STL
- EUG
1 stop6h 41m
Alaska Airlines
Sat 4/111:07 pm
EUG
- STL
1 stop8h 52m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/73:50 pm
STL
- BOI
1 stop8h 07m
Alaska Airlines
Wed 4/82:22 pm
BOI
- STL
1 stop8h 37m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:45 pm
STL
- PDX
1 stop7h 08m
Delta
Wed 4/2211:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/16![Delta logo]()
$217
This Expedia deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:55 pm
STL
- PDX
1 stop13h 04m
Multiple Airlines
Tue 4/212:42 pm
PDX
- STL
1 stop7h 17m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:06 pm
STL
- PDX
1 stop17h 36m
Frontier
Wed 4/2212:38 pm
PDX
- STL
1 stop28h 43m
Frontier
Deal found 3/15![Frontier logo]()
$255
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/2011:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/12![Delta logo]()
$277
This Orbitz deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:55 pm
STL
- PDX
1 stop13h 04m
Frontier
Sun 4/2611:15 am
PDX
- STL
1 stop6h 06m
Frontier
Deal found 3/13![Frontier logo]()
$231
This American Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:21 pm
STL
- PDX
1 stop8h 36m
American Airlines
Mon 4/2710:23 pm
PDX
- STL
1 stop9h 21m
American Airlines
Deal found 3/12![American Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/258:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Tue 4/2812:38 pm
PDX
- STL
2 stops32h 41m
Frontier
Deal found 3/14![Frontier logo]()
$227
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 March 17, 2026.
Search for one-way flight options from St. Louis to Oregon. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/278:17 pm
STL
- PDX
1 stop17h 35m
Frontier
Deal found 3/12![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/258:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Deal found 3/12![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:06 pm
STL
- PDX
1 stop17h 36m
Frontier
Deal found 3/16![Frontier logo]()
$89
This CheapOair deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$99
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/142:20 pm
STL
- PDX
1 stop5h 48m
Delta
Deal found 3/12![Delta logo]()
$109
This Frontier deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:16 pm
STL
- PDX
1 stop10h 35m
Frontier
Deal found 3/16![Frontier logo]()
$111
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/152:20 pm
STL
- PDX
1 stop5h 48m
Delta
Deal found 3/13![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 5/98:08 pm
STL
- PDX
1 stop22h 38m
Frontier
Deal found 3/13![Frontier logo]()
$124
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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
Deal found 3/12![Delta logo]()
$129
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:16 pm
STL
- PDX
1 stop10h 35m
Frontier
Deal found 3/15![Frontier logo]()
$131
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:59 pm
STL
- EUG
1 stop5h 44m
Delta
Deal found 3/16![Delta logo]()
$139
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
STL
- MFR
1 stop6h 47m
Delta
Deal found 3/16![Delta logo]()
$139
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 March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $210 (Frontier) |
One-way from | $76 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $472 |
Good round-trip deal | $278 or less |
Good one-way deal | $144 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 March 17, 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
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Tue 4/14
6:45 pm-11:53 pm
1 stop7h 08m
Portland
Wed 4/22
11:15 pm-9:42 am
1 stop8h 27m
$217
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Tue 4/7
3:50 pm-10:57 pm
1 stop8h 07m
Boise Air Term. Gowen Fld
Wed 4/8
2:22 pm-11:59 pm
1 stop8h 37m
$277
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 4/7
7:00 am-11:58 pm
1 stop18h 58m
Eugene
Wed 4/8
1:07 pm-11:59 pm
1 stop8h 52m
$290
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Tue 4/7
6:12 pm-10:11 pm
1 stop4h 59m
Boise Air Term. Gowen Fld
Sat 4/11
8:00 am-2:43 pm
1 stop5h 43m
$297
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 4/7
3:05 pm-11:50 pm
2 stops10h 45m
Eugene
Wed 4/8
5:15 am-1:17 pm
1 stop6h 02m
$302
St. LouisPortland
STL - PDX
STLPDX
Lambert-St Louis
Thu 6/11
6:30 pm-11:55 pm
1 stop7h 25m
Portland
Sat 6/13
4:25 pm-12:35 am
1 stop6h 10m
$308
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 4/21
1:46 pm-11:58 pm
2 stops12h 12m
Eugene
Tue 4/28
6:30 am-5:26 pm
2 stops8h 56m
$310
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 4/21
6:35 am-10:45 am
1 stop6h 10m
Eugene
Tue 4/28
11:20 am-10:00 pm
1 stop8h 40m
$317
St. LouisMedford
STL - MFR
STLMFR
Lambert-St Louis
Wed 4/22
2:20 pm-11:20 pm
2 stops11h 00m
Medford
Sun 4/26
5:10 am-1:23 pm
1 stop6h 13m
$328
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 4/14
6:45 pm-11:47 pm
1 stop7h 02m
Eugene
Fri 4/17
11:09 am-12:25 am
2 stops11h 16m
$332
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-PDX
STL-BOI
STL-EUG
STL-YKM
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-BOI
STL-EUG
STL-YKM
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 $156). Flying from St. Louis to Oregon in December is currently the most expensive (average of $242). 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 March 17, 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.
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 March 17, 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.
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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 March 17, 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 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 March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$250 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$381 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$188 | Average$462 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$226 | Average$415 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$228 | Average$467 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$249 | Average$437 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$338 | Average$472 | FlexibilityNo cancel fee | On-time85% |