$90+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Sep 13 — Sep 201
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
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 August 14, 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 August 14, 2026.
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:17 pm -
1 stop25h 19m
Sat 9/1212:24 pm -
1 stop20h 53m
Deal found 8/12![Frontier logo]()
$182
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:19 pm -
1 stop22h 38m
Mon 10/123:52 pm -
1 stop8h 25m
Deal found 8/12![Frontier logo]()
$182
This CheapOair deal was found by Cheapflights users on 8/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 pm -
1 stop20h 07m
Sat 9/512:20 pm -
1 stop28h 53m
Deal found 8/13![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Thu 10/295:32 pm -
1 stop22h 25m
Mon 11/23:52 pm -
1 stop29h 47m
Deal found 8/12![Frontier logo]()
$202
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:58 pm -
1 stop23h 13m
Sun 9/1312:24 pm -
1 stop20h 53m
Deal found 8/12![Frontier logo]()
$207
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/168:10 pm -
1 stop22h 25m
Sun 10/189:34 pm -
1 stop25h 43m
Deal found 8/11![Frontier logo]()
$215
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/155:30 pm -
1 stop7h 22m
Wed 9/169:00 am -
1 stop7h 38m
Deal found 8/12![United Airlines logo]()
$224
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2610:14 am -
1 stop8h 40m
Sat 10/311:08 pm -
1 stop9h 10m
Deal found 8/11![American Airlines logo]()
$228
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 10/105:33 pm -
1 stop8h 11m
Wed 10/145:15 pm -
1 stop5h 29m
Deal found 8/12![Delta logo]()
$229
This Southwest deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:25 am -
1 stop7h 55m
Mon 10/1911:35 pm -
1 stop7h 40m
Deal found 8/9![Southwest logo]()
$230
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/910:53 am -
2 stops8h 56m
Sat 9/125:00 am -
1 stop5h 40m
Deal found 8/12![United Airlines logo]()
$234
This Southwest deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/286:10 pm -
1 stop6h 00m
Sat 10/316:20 am -
1 stop8h 45m
Deal found 8/9![Southwest logo]()
$235
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 August 14, 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 August 14, 2026.
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 9/126:15 am -
1 stop8h 22m
Fri 9/1812:25 am -
1 stop8h 09m
Deal found 8/12![Delta logo]()
$229
This Southwest deal was found by Cheapflights users on 8/13. 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.
Thu 10/16:10 pm -
1 stop8h 00m
Mon 10/511:35 pm -
1 stop7h 40m
Deal found 8/13![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:35 am -
1 stop9h 01m
Wed 9/167:15 am -
1 stop9h 23m
Deal found 8/10![United Airlines logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/158:00 am -
1 stop6h 22m
Wed 9/233:21 pm -
1 stop8h 06m
Deal found 8/13![American Airlines logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 9/246:29 am -
1 stop7h 06m
Tue 9/296:23 am -
1 stop6h 58m
Deal found 8/14![Alaska Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 9/1012:17 pm -
1 stop26h 38m
Thu 9/172:50 pm -
1 stop19h 37m
Deal found 8/9![Frontier logo]()
$331
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 10/207:45 am -
1 stop6h 08m
Tue 10/274:41 pm -
1 stop6h 03m
Deal found 8/10![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/101:36 pm -
2 stops8h 49m
Thu 9/172:19 pm -
1 stop6h 40m
Deal found 8/13![United Airlines logo]()
$272
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/224:05 pm -
2 stops7h 25m
Tue 9/293:40 pm -
1 stop6h 00m
Deal found 8/12![Southwest logo]()
$274
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 10/76:00 am -
2 stops12h 01m
Tue 10/134:41 pm -
1 stop6h 03m
Deal found 8/12![Delta logo]()
$252
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:00 pm -
2 stops8h 59m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/10![Delta logo]()
$252
This Southwest deal was found by Cheapflights users on 8/12. 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 10/295:05 am -
2 stops9h 15m
Mon 11/212:30 pm -
2 stops8h 50m
Deal found 8/12![Southwest logo]()
$280
This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:08 pm -
Nonstop4h 12m
Sat 9/1911:16 am -
Nonstop3h 54m
Deal found 8/10![Alaska Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 8/13. 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 9/236:55 pm -
1 stop6h 52m
Mon 9/284:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 10/177:08 am -
1 stop9h 19m
Wed 10/212:27 pm -
1 stop6h 32m
Deal found 8/13![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 8/12. 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.
Fri 10/26:10 pm -
1 stop8h 00m
Tue 10/610:45 am -
2 stops9h 20m
Deal found 8/12![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:55 pm -
1 stop6h 45m
Tue 9/2212:25 am -
1 stop6h 15m
Deal found 8/11![Delta logo]()
$259
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 10/16:08 pm -
Nonstop4h 12m
Tue 10/69:31 am -
1 stop12h 28m
Deal found 8/14![Alaska Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:00 am -
2 stops9h 05m
Sat 9/1912:45 pm -
1 stop5h 53m
Deal found 8/9![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/175:40 am -
2 stops9h 12m
Sat 10/245:16 am -
2 stops11h 04m
Deal found 8/11![American Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 9/115:00 pm -
1 stop8h 47m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$280
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 11/108:00 am -
1 stop9h 42m
Wed 11/116:30 am -
1 stop5h 08m
Deal found 8/10![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:08 pm -
Nonstop4h 12m
Sun 9/611:16 am -
Nonstop3h 54m
Deal found 8/9![Alaska Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 10/249:00 am -
1 stop5h 38m
Wed 10/285:00 am -
2 stops8h 30m
Deal found 8/13![United Airlines logo]()
$364
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:02 am -
1 stop7h 44m
Sat 10/315:59 am -
1 stop7h 45m
Deal found 8/11![Alaska Airlines logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:02 am -
1 stop8h 44m
Sat 10/241:23 pm -
1 stop8h 36m
Deal found 8/11![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 8/13. 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.
Sat 10/173:35 pm -
2 stops9h 43m
Sat 10/246:11 am -
2 stops12h 58m
Deal found 8/13![Delta logo]()
$410
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/37:00 am -
1 stop7h 43m
Sat 11/76:00 am -
1 stop7h 21m
Deal found 8/11![Alaska Airlines logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 9/293:19 pm -
1 stop25h 25m
Sat 10/33:00 pm -
1 stop6h 59m
Deal found 8/12![Alaska Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:52 pm -
2 stops9h 16m
Mon 9/147:24 pm -
2 stops12h 05m
Deal found 8/10![Delta logo]()
$443
Last-minute flights from St. Louis to OregonDiscover last-minute flight deals from St. Louis to Oregon. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Oregon. Data last updated August 14, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:58 pm -
1 stop23h 13m
Sun 9/1312:24 pm -
1 stop20h 53m
Deal found 8/12![Frontier logo]()
$207
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:13 am -
1 stop8h 21m
Tue 9/12:08 pm -
1 stop7h 13m
Deal found 8/11![Delta logo]()
$246
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/15:00 pm -
1 stop7h 38m
Sat 9/511:55 am -
1 stop8h 08m
Deal found 8/11![Delta logo]()
$229
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:20 pm -
2 stops9h 30m
Sat 9/121:35 pm -
1 stop6h 50m
Deal found 8/10![Southwest logo]()
$235
This CheapOair deal was found by Cheapflights users on 8/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 pm -
1 stop20h 07m
Sat 9/512:20 pm -
1 stop28h 53m
Deal found 8/13![Frontier logo]()
$188
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/28:30 am -
2 stops8h 35m
Sat 9/512:45 pm -
1 stop6h 01m
Deal found 8/13![United Airlines logo]()
$251
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:17 pm -
1 stop25h 19m
Sat 9/1212:24 pm -
1 stop20h 53m
Deal found 8/12![Frontier logo]()
$182
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/910:53 am -
2 stops8h 56m
Sat 9/125:00 am -
1 stop5h 40m
Deal found 8/12![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:35 am -
1 stop9h 01m
Wed 9/167:15 am -
1 stop9h 23m
Deal found 8/10![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:00 pm -
2 stops8h 59m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/10![Delta logo]()
$252
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/155:30 pm -
1 stop7h 22m
Wed 9/169:00 am -
1 stop7h 38m
Deal found 8/12![United Airlines logo]()
$224
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2610:14 am -
1 stop8h 40m
Sat 10/311:08 pm -
1 stop9h 10m
Deal found 8/11![American Airlines logo]()
$228
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 August 14, 2026.
Search for one-way flight options from St. Louis to Oregon. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Jetabroad deal was found by Cheapflights users on 8/13. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:58 pm -
1 stop23h 13m
Deal found 8/13![Frontier logo]()
$90
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:32 pm -
1 stop28h 36m
Deal found 8/12![Frontier logo]()
$93
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Sat 10/38:10 pm -
1 stop17h 33m
Deal found 8/11![Frontier logo]()
$97
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:17 pm -
1 stop25h 19m
Deal found 8/12![Frontier logo]()
$101
This Southwest deal was found by Cheapflights users on 8/13. 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.
Sat 9/128:30 am -
Nonstop4h 10m
Deal found 8/13![Southwest logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Wed 10/144:19 pm -
1 stop26h 16m
Deal found 8/12![Frontier logo]()
$108
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/1012:28 pm -
1 stop11h 35m
Deal found 8/11![United Airlines logo]()
$110
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:05 am -
1 stop6h 45m
Deal found 8/11![Southwest logo]()
$111
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Thu 9/105:18 pm -
1 stop8h 49m
Deal found 8/11![American Airlines logo]()
$115
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/121:36 pm -
2 stops9h 03m
Deal found 8/13![United Airlines logo]()
$120
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:25 am -
1 stop7h 45m
Deal found 8/10![United Airlines logo]()
$124
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:26 am -
1 stop8h 05m
Deal found 8/10![American Airlines logo]()
$135
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 August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $182 (CheapOair) |
One-way from | $90 (Jetabroad) |
Popular in | July |
Cheapest in | January |
Average price | $352 |
Good round-trip deal | $297 or less |
Good one-way deal | $188 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 August 14, 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 Lambert-St Louis - PDX Portland
STLPDX
Lambert-St Louis
Sat 9/12
6:15 am-12:37 pm
1 stop8h 22m
Portland
Fri 9/18
12:25 am-10:34 am
1 stop8h 09m
$229
St. LouisPortland
STL Lambert-St Louis - PDX Portland
STLPDX
Lambert-St Louis
Thu 10/1
6:10 pm-12:10 am
1 stop8h 00m
Portland
Mon 10/5
11:35 pm-9:15 am
1 stop7h 40m
$229
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 9/9
8:35 am-3:36 pm
1 stop9h 01m
Eugene
Wed 9/16
7:15 am-6:38 pm
1 stop9h 23m
$247
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Tue 10/20
7:45 am-11:53 am
1 stop6h 08m
Eugene
Tue 10/27
4:41 pm-12:44 am
1 stop6h 03m
$247
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 10/7
6:00 am-4:01 pm
2 stops12h 01m
Eugene
Tue 10/13
4:41 pm-12:44 am
1 stop6h 03m
$252
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 9/9
5:00 pm-11:59 pm
2 stops8h 59m
Eugene
Wed 9/16
4:45 pm-12:44 am
1 stop5h 59m
$252
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 9/23
6:55 pm-11:47 pm
1 stop6h 52m
Eugene
Mon 9/28
4:45 pm-12:44 am
1 stop5h 59m
$257
St. LouisPortland
STL Lambert-St Louis - PDX Portland
STLPDX
Lambert-St Louis
Fri 9/18
6:55 pm-11:40 pm
1 stop6h 45m
Portland
Tue 9/22
12:25 am-8:40 am
1 stop6h 15m
$259
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Tue 9/15
8:00 am-1:22 pm
1 stop6h 22m
Boise Air Term. Gowen Fld
Wed 9/23
3:21 pm-12:27 am
1 stop8h 06m
$269
St. LouisBoise
STL Lambert-St Louis - BOI Boise Air Term. Gowen Fld
STLBOI
Lambert-St Louis
Thu 9/24
6:29 am-12:35 pm
1 stop7h 06m
Boise Air Term. Gowen Fld
Tue 9/29
6:23 am-2:21 pm
1 stop6h 58m
$269
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-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-PDX
STL-BOI
STL-EUG
STL-YKM
What is the cheapest month to book a flight from St. Louis to Oregon?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Oregon (average of $325). Flying from St. Louis to Oregon in July is currently the most expensive (average of $466). 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 August 14, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from St. Louis to Oregon by exploring options for tickets in the evening.
How much does it cost to fly round-trip from St. Louis to Oregon?
Airfare is below average for this route at the moment.
St. Louis to Oregon flights typically cost between $301 and $433 in September.The cheapest round-trip price found within the last 5 days was $182 on Frontier (Sep 9-Sep 12).
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 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 August 14, 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
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
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Alternative routes for St. Louis to Oregon
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Complete your trip
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St. Louis and Oregon flights
Browse other St. Louis and Oregon flight options. Last updated on August 14, 2026.
Popular flight searches
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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 August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$167 | Average$285 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$186 | Average$370 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$471 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$249 | Average$533 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$251 | Average$457 | FlexibilityNo cancel fee | On-time63% |