$80+ Cheap flights from Oregon to St. Louis (STL)
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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STL
huhti 24 — Touko 11
Round-trip
1 adult, Economy
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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 Oregon to St. LouisExplore the most affordable flight options available from Oregon to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on maaliskuu 25, 2026.
Explore the most affordable flight options available from Oregon to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on maaliskuu 25, 2026.
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/2311:48 am
PDX
- STL
1 stop5h 33m
Frontier
ma 4/278:17 pm
STL
- PDX
1 stop17h 35m
Frontier
Deal found 3/23![Frontier logo]()
$216
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/2912:38 pm
PDX
- STL
1 stop28h 43m
Frontier
la 5/28:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Deal found 3/23![Frontier logo]()
$221
This Delta deal was found by Cheapflights users on 3/24. 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.
ti 4/2111:15 pm
PDX
- STL
1 stop8h 27m
Delta
to 5/77:59 pm
STL
- PDX
1 stop5h 45m
Delta
Deal found 3/24![Delta logo]()
$224
This Expedia deal was found by Cheapflights users on 3/24. 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.
ma 4/2011:48 am
PDX
- STL
1 stop5h 44m
Frontier
to 4/239:55 pm
STL
- PDX
1 stop13h 04m
Frontier
Deal found 3/24![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/2011:48 am
PDX
- STL
1 stop5h 44m
Frontier
ma 4/278:17 pm
STL
- PDX
1 stop17h 35m
Frontier
Deal found 3/23![Frontier logo]()
$236
This United Airlines deal was found by Cheapflights users on 3/24. 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.
ma 5/1811:59 pm
PDX
- STL
1 stop7h 31m
United Airlines
ke 5/275:10 am
STL
- PDX
1 stop6h 37m
United Airlines
Deal found 3/24![United Airlines logo]()
$237
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/1611:48 am
PDX
- STL
1 stop5h 33m
Frontier
la 4/188:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Deal found 3/22![Frontier logo]()
$241
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 5/111:40 pm
PDX
- STL
1 stop7h 14m
American Airlines
ti 5/55:21 pm
STL
- PDX
1 stop7h 35m
American Airlines
Deal found 3/24![American Airlines logo]()
$244
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 4/2411:55 pm
PDX
- STL
1 stop8h 35m
Southwest
ti 4/281:45 pm
STL
- PDX
2 stops9h 00m
Southwest
Deal found 3/23![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 4/2111:55 pm
PDX
- STL
1 stop7h 35m
Southwest
pe 4/241:45 pm
STL
- PDX
1 stop12h 25m
Southwest
Deal found 3/22![Southwest logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
pe 4/179:54 am
PDX
- STL
2 stops31h 38m
Frontier
pe 4/248:06 pm
STL
- PDX
1 stop17h 36m
Frontier
Deal found 3/19![Frontier logo]()
$255
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 5/54:05 pm
BOI
- STL
1 stop6h 10m
Southwest
ke 5/66:30 pm
STL
- BOI
1 stop6h 55m
Southwest
Deal found 3/24![Southwest logo]()
$263
Best flights from Oregon to St. LouisDiscover carefully curated flight deals from Oregon to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated maaliskuu 25, 2026.
Discover carefully curated flight deals from Oregon to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated maaliskuu 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
ti 5/52:57 pm
BOI
- STL
1 stop8h 02m
Alaska Airlines
ke 5/64:46 pm
STL
- BOI
1 stop8h 13m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/297:00 am
PDX
- STL
2 stops9h 00m
Southwest
la 5/26:10 am
STL
- PDX
2 stops14h 35m
Southwest
Deal found 3/23![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
to 4/1611:59 pm
PDX
- STL
1 stop6h 26m
United Airlines
la 4/184:49 pm
STL
- PDX
1 stop8h 09m
United Airlines
Deal found 3/19![United Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
to 5/71:22 pm
BOI
- STL
1 stop29h 01m
Frontier
ma 5/118:08 pm
STL
- BOI
1 stop17h 19m
Frontier
Deal found 3/20![Frontier logo]()
$305
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
to 5/213:10 pm
PDX
- STL
1 stop6h 11m
Delta
ke 5/277:59 pm
STL
- PDX
1 stop5h 45m
Delta
Deal found 3/20![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 5/2210:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
ti 5/265:33 pm
STL
- PDX
Nonstop4h 17m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 5/65:45 am
RDM
- STL
1 stop5h 38m
Delta
la 5/97:00 am
STL
- RDM
1 stop6h 35m
Delta
Deal found 3/21![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 7/1412:50 pm
PDX
- STL
1 stop5h 53m
United Airlines
su 7/195:33 pm
STL
- PDX
1 stop8h 29m
United Airlines
Deal found 3/21![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 6/155:00 pm
PDX
- STL
1 stop6h 50m
Southwest
ma 6/226:30 pm
STL
- PDX
1 stop7h 25m
Southwest
Deal found 3/21![Southwest logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
ti 4/142:22 pm
BOI
- STL
1 stop8h 37m
Alaska Airlines
ke 4/157:00 am
STL
- BOI
1 stop9h 29m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
ti 5/512:52 pm
MFR
- STL
1 stop5h 51m
United Airlines
to 5/72:35 pm
STL
- MFR
1 stop8h 56m
United Airlines
Deal found 3/20![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
ti 5/511:14 am
MFR
- STL
2 stops11h 11m
Delta
to 5/77:59 pm
STL
- MFR
1 stop5h 43m
Delta
Deal found 3/20![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 4/281:52 pm
PDX
- STL
1 stop8h 07m
Alaska Airlines
la 5/27:00 am
STL
- PDX
1 stop7h 52m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 5/112:50 pm
PDX
- STL
1 stop7h 00m
Southwest
pe 5/155:45 am
STL
- PDX
2 stops12h 35m
Southwest
Deal found 3/21![Southwest logo]()
$383
This United Airlines deal was found by Cheapflights users on 3/24. 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.
ti 5/52:26 pm
BOI
- STL
1 stop5h 17m
United Airlines
ke 5/68:46 am
STL
- BOI
2 stops14h 30m
United Airlines
Deal found 3/24![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
to 7/239:20 pm
PDX
- STL
1 stop8h 15m
Southwest
su 7/264:45 pm
STL
- PDX
Nonstop4h 05m
Southwest
Deal found 3/20![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
to 7/238:35 am
PDX
- STL
1 stop7h 42m
United Airlines
su 7/265:10 am
STL
- PDX
1 stop6h 38m
United Airlines
Deal found 3/20![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/156:30 am
PDX
- STL
2 stops9h 25m
Southwest
to 4/168:25 am
STL
- PDX
2 stops15h 15m
Southwest
Deal found 3/22![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 5/137:20 pm
RDM
- STL
2 stops11h 26m
Delta
ti 5/1911:25 am
STL
- RDM
2 stops9h 15m
Delta
Deal found 3/22![Delta logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
ti 4/146:00 am
EUG
- STL
1 stop6h 51m
Alaska Airlines
ke 4/157:00 am
STL
- EUG
1 stop15h 31m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 7/215:10 am
PDX
- STL
1 stop9h 10m
Southwest
su 7/263:45 pm
STL
- PDX
2 stops10h 20m
Southwest
Deal found 3/22![Southwest logo]()
$389
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 5/512:52 pm
EUG
- STL
1 stop5h 51m
United Airlines
ke 5/62:35 pm
STL
- EUG
2 stops10h 24m
United Airlines
Deal found 3/23![United Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 5/51:23 pm
EUG
- STL
1 stop8h 36m
Alaska Airlines
ke 5/64:46 pm
STL
- EUG
1 stop9h 13m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 6/32:00 pm
BOI
- STL
1 stop7h 00m
Southwest
su 6/74:45 pm
STL
- BOI
2 stops9h 35m
Southwest
Deal found 3/22![Southwest logo]()
$401
This United Airlines deal was found by Cheapflights users on 3/24. 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.
la 5/305:00 am
EUG
- STL
2 stops8h 46m
United Airlines
la 6/65:10 am
STL
- EUG
2 stops8h 51m
United Airlines
Deal found 3/24![United Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 4/51:22 pm
MFR
- STL
1 stop8h 37m
Alaska Airlines
to 4/94:20 pm
STL
- MFR
1 stop9h 39m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
la 5/212:52 pm
MFR
- STL
1 stop5h 51m
United Airlines
ti 5/58:46 am
STL
- MFR
1 stop6h 15m
United Airlines
Deal found 3/23![United Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
pe 5/11:52 pm
RDM
- STL
1 stop8h 07m
Alaska Airlines
ti 5/57:00 am
STL
- RDM
1 stop7h 58m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$431
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
to 5/711:15 am
BOI
- STL
2 stops8h 50m
Southwest
ma 5/113:50 pm
STL
- BOI
2 stops10h 10m
Southwest
Deal found 3/20![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
ti 4/147:11 am
BOI
- STL
2 stops12h 43m
United Airlines
ke 4/158:54 am
STL
- BOI
2 stops12h 19m
United Airlines
Deal found 3/20![United Airlines logo]()
$427
Last-minute flights from Oregon to St. LouisDiscover last-minute flight deals from Oregon to St. Louis. Data last updated maaliskuu 25, 2026 and is based on user searches.
Discover last-minute flight deals from Oregon to St. Louis. Data last updated maaliskuu 25, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 4/145:40 am
PDX
- STL
1 stop7h 25m
Southwest
pe 4/177:20 pm
STL
- PDX
1 stop7h 05m
Southwest
Deal found 3/23![Southwest logo]()
$244
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 4/142:14 pm
BOI
- STL
1 stop8h 45m
American Airlines
to 4/235:51 am
STL
- BOI
1 stop7h 58m
American Airlines
Deal found 3/23![American Airlines logo]()
$290
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/1611:48 am
PDX
- STL
1 stop5h 33m
Frontier
la 4/188:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Deal found 3/22![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
pe 4/179:54 am
PDX
- STL
2 stops31h 38m
Frontier
pe 4/248:06 pm
STL
- PDX
1 stop17h 36m
Frontier
Deal found 3/19![Frontier logo]()
$255
This Expedia deal was found by Cheapflights users on 3/24. 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.
ma 4/2011:48 am
PDX
- STL
1 stop5h 44m
Frontier
to 4/239:55 pm
STL
- PDX
1 stop13h 04m
Frontier
Deal found 3/24![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 4/2011:48 am
PDX
- STL
1 stop5h 44m
Frontier
ma 4/278:17 pm
STL
- PDX
1 stop17h 35m
Frontier
Deal found 3/23![Frontier logo]()
$236
This Delta deal was found by Cheapflights users on 3/24. 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.
ti 4/2111:15 pm
PDX
- STL
1 stop8h 27m
Delta
to 5/77:59 pm
STL
- PDX
1 stop5h 45m
Delta
Deal found 3/24![Delta logo]()
$224
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 4/2111:55 pm
PDX
- STL
1 stop7h 35m
Southwest
pe 4/241:45 pm
STL
- PDX
1 stop12h 25m
Southwest
Deal found 3/22![Southwest logo]()
$250
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/2311:48 am
PDX
- STL
1 stop5h 33m
Frontier
ma 4/278:17 pm
STL
- PDX
1 stop17h 35m
Frontier
Deal found 3/23![Frontier logo]()
$216
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pe 4/2411:55 pm
PDX
- STL
1 stop8h 35m
Southwest
ti 4/281:45 pm
STL
- PDX
2 stops9h 00m
Southwest
Deal found 3/23![Southwest logo]()
$245
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ke 4/2912:38 pm
PDX
- STL
1 stop28h 43m
Frontier
la 5/28:17 pm
STL
- PDX
1 stop16h 03m
Frontier
Deal found 3/23![Frontier logo]()
$221
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/3011:47 pm
PDX
- STL
1 stop6h 37m
American Airlines
ti 5/55:21 pm
STL
- PDX
1 stop7h 35m
American Airlines
Deal found 3/23![American Airlines logo]()
$257
One-way flights from Oregon to St. LouisSearch for one-way flight options from Oregon to St. Louis. Find affordable one-way fares based on user searches. Data last updated maaliskuu 25, 2026.
Search for one-way flight options from Oregon to St. Louis. Find affordable one-way fares based on user searches. Data last updated maaliskuu 25, 2026.
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/1611:48 am
PDX
- STL
1 stop5h 33m
Frontier
Deal found 3/23![Frontier logo]()
$80
This CheapOair deal was found by Cheapflights users on 3/24. 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.
ma 5/188:46 pm
PDX
- STL
1 stop19h 20m
Frontier
Deal found 3/24![Frontier logo]()
$92
This Delta deal was found by Cheapflights users on 3/24. 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.
ti 4/2111:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/24![Delta logo]()
$103
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 5/311:15 am
PDX
- STL
1 stop6h 06m
Frontier
Deal found 3/23![Frontier logo]()
$105
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ti 5/56:30 am
PDX
- STL
2 stops9h 25m
Southwest
Deal found 3/24![Southwest logo]()
$108
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
to 4/912:03 pm
BOI
- STL
1 stop20h 45m
Frontier
Deal found 3/21![Frontier logo]()
$117
This CheapOair deal was found by Cheapflights users on 3/24. 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.
ma 6/16:19 pm
PDX
- STL
1 stop21h 47m
Frontier
Deal found 3/24![Frontier logo]()
$117
This Delta deal was found by Cheapflights users on 3/24. 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.
ma 4/2011:15 pm
PDX
- STL
1 stop8h 27m
Delta
Deal found 3/24![Delta logo]()
$122
This Priceline deal was found by Cheapflights users on 3/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
su 4/2611:15 am
PDX
- STL
1 stop6h 06m
Frontier
Deal found 3/24![Frontier logo]()
$125
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
pe 4/311:58 am
PDX
- STL
1 stop19h 50m
Frontier
Deal found 3/20![Frontier logo]()
$127
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
la 5/99:35 am
PDX
- STL
2 stops8h 50m
Southwest
Deal found 3/23![Southwest logo]()
$128
This Expedia deal was found by Cheapflights users on 3/24. 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.
ti 5/1910:37 am
PDX
- STL
Nonstop4h 00m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$129
Find flight deals from Oregon to St. Louis
Keep the following information in mind while searching for Oregon to St. Louis flight deals. Data was last updated maaliskuu 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $216 (CheapOair) |
One-way from | $80 (Frontier) |
Popular in | March |
Cheapest in | November |
Average price | $480 |
Good round-trip deal | $213 or less |
Good one-way deal | $163 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Oregon to St. Louis 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 maaliskuu 25, 2026.
Use the filters below to find and compare flights from Oregon to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSt. Louis
BOI - STL
BOISTL
Boise Air Term. Gowen Fld
ti 5/5
2:57 pm-11:59 pm
1 stop8h 02m
Lambert-St Louis
ke 5/6
4:46 pm-11:59 pm
1 stop8h 13m
$290
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
ke 4/29
7:00 am-6:00 pm
2 stops9h 00m
Lambert-St Louis
la 5/2
6:10 am-6:45 pm
2 stops14h 35m
$293
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
to 4/16
11:59 pm-8:25 am
1 stop6h 26m
Lambert-St Louis
la 4/18
4:49 pm-10:58 pm
1 stop8h 09m
$293
BoiseSt. Louis
BOI - STL
BOISTL
Boise Air Term. Gowen Fld
to 5/7
1:22 pm-7:23 pm
1 stop29h 01m
Lambert-St Louis
ma 5/11
8:08 pm-12:27 pm
1 stop17h 19m
$305
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
to 5/21
3:10 pm-11:21 pm
1 stop6h 11m
Lambert-St Louis
ke 5/27
7:59 pm-11:44 pm
1 stop5h 45m
$309
Quickest round-trip
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
pe 5/22
10:37 am-4:37 pm
Nonstop4h 00m
Lambert-St Louis
ti 5/26
5:33 pm-7:50 pm
Nonstop4h 17m
$309
RedmondSt. Louis
RDM - STL
RDMSTL
Bend/Redmond
ke 5/6
5:45 am-1:23 pm
1 stop5h 38m
Lambert-St Louis
la 5/9
7:00 am-11:35 am
1 stop6h 35m
$317
BoiseSt. Louis
BOI - STL
BOISTL
Boise Air Term. Gowen Fld
ti 4/14
2:22 pm-11:59 pm
1 stop8h 37m
Lambert-St Louis
ke 4/15
7:00 am-3:29 pm
1 stop9h 29m
$317
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
ti 7/14
12:50 pm-8:43 pm
1 stop5h 53m
Lambert-St Louis
su 7/19
5:33 pm-12:02 am
1 stop8h 29m
$327
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
ti 4/28
1:52 pm-11:59 pm
1 stop8h 07m
Lambert-St Louis
la 5/2
7:00 am-12:52 pm
1 stop7h 52m
$332
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Oregon to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Oregon with our price prediction graph.
BOI-STL
PDX-STL
RDM-STL
MFR-STL
EUG-STL
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 Oregon to St. Louis
USOR-STL
BOI-STL
PDX-STL
RDM-STL
MFR-STL
What is the cheapest month to book a flight from Oregon to St. Louis?
Currently, December is the cheapest month in which you can book a flight from Oregon to St. Louis (average of $165). Flying from Oregon to St. Louis in February is currently the most expensive (average of $248). 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.
Related info for your journey
Find useful and relevant information for your journey from Oregon to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Oregon to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Oregon to St. Louis by cabin class
Find flights from Oregon to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Oregon and St. Louis flights
Browse other Oregon and St. Louis flight options. Last updated on maaliskuu 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on maaliskuu 25, 2026.
Oregon to St. Louis flights
Consider these flights traveling from Oregon to St. Louis.
Top 6 airlines flying from Oregon to St. Louis
Discover the top 6 airlines that operate flights from Oregon to St. Louis. 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 maaliskuu 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$282 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$400 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$436 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$226 | Average$379 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$226 | Average$481 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$420 | FlexibilityNo cancel fee | On-time63% |