$198+ Cheap flights from Oregon to Costa Rica
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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Aug 23 — Aug 301
Round-trip
1 adult, Economy
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Find cheap flights from Oregon to Costa Rica 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 Oregon to Costa RicaExplore the most affordable flight options available from Oregon to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
Explore the most affordable flight options available from Oregon to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
This eDestinos deal was found by Cheapflights users on 7/23. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:03 am
PDX
- SJO
1 stop15h 12m
Multiple Airlines
Thu 9/175:45 am
SJO
- PDX
1 stop30h 05m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$401
This eDestinos deal was found by Cheapflights users on 7/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:03 am
PDX
- SJO
1 stop15h 12m
Multiple Airlines
Thu 9/175:45 am
SJO
- PDX
1 stop30h 05m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$405
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Tue 9/15:45 am
SJO
- PDX
2 stops16h 05m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$414
This Avianca deal was found by Cheapflights users on 7/22. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:47 am
PDX
- SJO
2 stops14h 28m
Multiple Airlines
Mon 12/145:45 am
SJO
- PDX
2 stops20h 09m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$416
This oojo deal was found by Cheapflights users on 7/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Mon 9/143:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$417
This Avianca deal was found by Cheapflights users on 7/21. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Tue 8/257:45 pm
SJO
- PDX
3 stops16h 05m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$418
This oojo deal was found by Cheapflights users on 7/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Sun 9/1312:40 pm
SJO
- PDX
3 stops21h 45m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$419
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 pm
PDX
- SJO
2 stops17h 30m
Multiple Airlines
Sun 10/189:40 am
SJO
- PDX
2 stops24h 51m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$421
This oojo deal was found by Cheapflights users on 7/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Tue 11/35:45 am
SJO
- PDX
2 stops19h 25m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$426
This oojo deal was found by Cheapflights users on 7/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:27 pm
PDX
- SJO
2 stops24h 48m
Multiple Airlines
Fri 8/147:45 pm
SJO
- PDX
2 stops22h 02m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$431
This eDestinos deal was found by Cheapflights users on 7/23. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:00 am
BOI
- SJO
1 stop15h 15m
Multiple Airlines
Sun 11/85:45 am
SJO
- BOI
1 stop18h 13m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$431
This Avianca deal was found by Cheapflights users on 7/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:03 am
BOI
- SJO
2 stops15h 12m
Multiple Airlines
Tue 8/255:45 am
SJO
- BOI
2 stops17h 15m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$450
Best flights from Oregon to Costa RicaDiscover carefully curated flight deals from Oregon to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
Discover carefully curated flight deals from Oregon to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 11/147:03 am
PDX
- LIR
1 stop9h 34m
United Airlines
Thu 12/1012:50 pm
LIR
- PDX
1 stop9h 59m
United Airlines
Deal found 7/21![United Airlines logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 7/19. 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.
Sun 10/258:22 pm
BOI
- LIR
2 stops23h 29m
Alaska Airlines
Thu 10/299:16 am
LIR
- BOI
2 stops27h 19m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 7/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:55 pm
PDX
- LIR
2 stops16h 15m
Delta
Tue 12/223:05 pm
LIR
- PDX
2 stops20h 11m
Delta
Deal found 7/19![Delta logo]()
$585
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:07 pm
EUG
- LIR
2 stops22h 11m
American Airlines
Mon 9/142:18 pm
LIR
- EUG
2 stops23h 49m
American Airlines
Deal found 7/22![American Airlines logo]()
$625
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Fri 10/1611:30 pm
PDX
- LIR
1 stop11h 23m
United Airlines
Tue 10/2711:50 am
LIR
- PDX
2 stops13h 45m
United Airlines
Deal found 7/23![United Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sun 1/177:49 pm
PDX
- SJO
1 stop10h 43m
United Airlines
Fri 1/221:15 am
SJO
- PDX
1 stop13h 04m
United Airlines
Deal found 7/21![United Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 7/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/43:10 pm
PDX
- LIR
2 stops20h 40m
Delta
Fri 1/153:25 pm
LIR
- PDX
2 stops26h 59m
Delta
Deal found 7/19![Delta logo]()
$585
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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.
Mon 1/42:30 pm
PDX
- LIR
1 stop13h 50m
Alaska Airlines
Fri 1/1510:00 am
LIR
- PDX
1 stop15h 54m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Fri 9/112:07 pm
MFR
- SJO
1 stop16h 08m
United Airlines
Fri 9/258:45 am
SJO
- MFR
1 stop15h 01m
United Airlines
Deal found 7/19![United Airlines logo]()
$500
This Delta deal was found by Cheapflights users on 7/20. 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.
Tue 10/65:34 pm
PDX
- LIR
2 stops17h 26m
Delta
Thu 10/151:00 pm
LIR
- PDX
2 stops20h 46m
Delta
Deal found 7/20![Delta logo]()
$585
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Sat 9/197:05 pm
BOI
- SJO
1 stop12h 10m
United Airlines
Sat 9/268:45 am
SJO
- BOI
1 stop12h 54m
United Airlines
Deal found 7/19![United Airlines logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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.
Fri 10/237:00 am
MFR
- SJO
1 stop11h 30m
Alaska Airlines
Sat 10/312:00 am
SJO
- MFR
1 stop12h 43m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$610
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:00 pm
RDM
- LIR
2 stops20h 33m
American Airlines
Sun 11/83:17 pm
LIR
- RDM
2 stops21h 05m
American Airlines
Deal found 7/22![American Airlines logo]()
$674
This Delta deal was found by Cheapflights users on 7/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:55 pm
PDX
- SJO
1 stop9h 05m
Delta
Sat 1/238:25 am
SJO
- PDX
1 stop16h 01m
Delta
Deal found 7/19![Delta logo]()
$587
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Thu 9/177:10 am
PDX
- SJO
1 stop11h 27m
United Airlines
Wed 9/237:55 am
SJO
- PDX
2 stops15h 58m
United Airlines
Deal found 7/20![United Airlines logo]()
$503
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 1/148:18 am
BOI
- SJO
1 stop14h 39m
Alaska Airlines
Sat 1/231:45 am
SJO
- BOI
2 stops21h 35m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$615
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:00 pm
RDM
- LIR
2 stops21h 43m
American Airlines
Mon 10/192:45 pm
LIR
- RDM
2 stops23h 59m
American Airlines
Deal found 7/19![American Airlines logo]()
$719
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/132:35 pm
BOI
- SJO
2 stops21h 10m
Delta
Sun 1/247:05 am
SJO
- BOI
2 stops17h 50m
Delta
Deal found 7/23![Delta logo]()
$622
This Alaska Airlines deal was found by Cheapflights users on 7/20. 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.
Fri 9/48:14 am
EUG
- LIR
1 stop10h 38m
Alaska Airlines
Sat 9/58:40 am
LIR
- EUG
2 stops25h 39m
Alaska Airlines
Deal found 7/20![Alaska Airlines logo]()
$645
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 9/37:25 am
EUG
- SJO
1 stop22h 50m
United Airlines
Thu 9/108:45 am
SJO
- EUG
1 stop12h 40m
United Airlines
Deal found 7/19![United Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:33 pm
EUG
- LIR
2 stops21h 57m
Delta
Tue 10/271:00 pm
LIR
- EUG
2 stops24h 56m
Delta
Deal found 7/23![Delta logo]()
$625
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Sat 9/197:15 pm
PDX
- SJO
1 stop11h 00m
United Airlines
Fri 10/28:45 am
SJO
- PDX
1 stop15h 12m
United Airlines
Deal found 7/23![United Airlines logo]()
$538
This Expedia deal was found by Cheapflights users on 7/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:16 pm
MFR
- LIR
1 stop24h 39m
Alaska Airlines
Wed 11/257:14 pm
LIR
- MFR
2 stops22h 24m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$693
This Delta deal was found by Cheapflights users on 7/20. 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.
Thu 9/34:43 pm
EUG
- LIR
2 stops18h 17m
Delta
Wed 9/91:25 pm
LIR
- EUG
2 stops24h 33m
Delta
Deal found 7/20![Delta logo]()
$645
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:28 pm
MFR
- SJO
1 stop11h 47m
United Airlines
Sun 11/19:40 am
SJO
- MFR
1 stop15h 29m
United Airlines
Deal found 7/22![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 9/246:28 pm
MFR
- SJO
1 stop11h 47m
United Airlines
Mon 10/58:45 am
SJO
- MFR
1 stop15h 01m
United Airlines
Deal found 7/21![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Wed 11/47:10 pm
BOI
- SJO
2 stops15h 15m
United Airlines
Sun 11/157:30 am
SJO
- BOI
1 stop11h 33m
United Airlines
Deal found 7/23![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Wed 10/215:00 am
PDX
- SJO
2 stops13h 37m
United Airlines
Sun 10/258:40 am
SJO
- PDX
1 stop10h 44m
United Airlines
Deal found 7/23![United Airlines logo]()
$543
This Delta deal was found by Cheapflights users on 7/20. 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.
Sat 8/295:43 pm
EUG
- LIR
2 stops17h 17m
Delta
Sun 9/61:25 pm
LIR
- EUG
2 stops24h 39m
Delta
Deal found 7/20![Delta logo]()
$876
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Wed 10/147:29 pm
PDX
- SJO
1 stop10h 46m
United Airlines
Sat 10/178:45 am
SJO
- PDX
1 stop15h 12m
United Airlines
Deal found 7/19![United Airlines logo]()
$562
Last-minute flights from Oregon to Costa RicaDiscover last-minute flight deals from Oregon to Costa Rica. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Oregon to Costa Rica. Data last updated July 24, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 7/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:51 pm
BOI
- SJO
2 stops28h 24m
Multiple Airlines
Mon 8/104:35 pm
SJO
- BOI
2 stops30h 10m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$515
This oojo deal was found by Cheapflights users on 7/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:37 pm
PDX
- SJO
3 stops24h 13m
Multiple Airlines
Thu 8/135:05 am
SJO
- PDX
2 stops12h 42m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$438
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:27 pm
PDX
- SJO
2 stops24h 48m
Multiple Airlines
Fri 8/149:40 am
SJO
- PDX
2 stops24h 41m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$421
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:37 pm
PDX
- SJO
2 stops28h 38m
Multiple Airlines
Mon 8/173:10 pm
SJO
- PDX
2 stops19h 11m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$433
This Avianca deal was found by Cheapflights users on 7/21. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Tue 8/255:45 am
SJO
- PDX
2 stops19h 14m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$416
This oojo deal was found by Cheapflights users on 7/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:37 pm
PDX
- SJO
3 stops17h 08m
Multiple Airlines
Thu 8/273:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$422
This oojo deal was found by Cheapflights users on 7/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:51 pm
BOI
- SJO
2 stops28h 24m
Multiple Airlines
Fri 8/145:05 am
SJO
- BOI
2 stops17h 40m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$493
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:20 am
PDX
- SJO
2 stops14h 55m
Multiple Airlines
Sun 8/233:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$435
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Tue 9/15:45 am
SJO
- PDX
2 stops16h 05m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$414
This Avianca deal was found by Cheapflights users on 7/19. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:03 am
BOI
- SJO
2 stops15h 12m
Multiple Airlines
Tue 8/255:45 am
SJO
- BOI
2 stops17h 15m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$450
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Wed 8/269:40 am
SJO
- PDX
2 stops24h 45m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$417
This eDestinos deal was found by Cheapflights users on 7/23. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:05 am
BOI
- SJO
1 stop16h 10m
Multiple Airlines
Mon 8/313:10 pm
SJO
- BOI
2 stops21h 23m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$451
One-way flights from Oregon to Costa RicaSearch for one-way flight options from Oregon to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
Search for one-way flight options from Oregon to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:40 am
PDX
- SJO
2 stops15h 35m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$198
This oojo deal was found by Cheapflights users on 7/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:33 pm
PDX
- SJO
2 stops18h 57m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$201
This oojo deal was found by Cheapflights users on 7/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:27 pm
PDX
- SJO
2 stops24h 48m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 7/24. 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.
Tue 9/16:00 am
BOI
- SJO
2 stops12h 40m
Southwest
Deal found 7/24![Southwest logo]()
$202
This eDestinos deal was found by Cheapflights users on 7/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:03 am
BOI
- SJO
1 stop15h 12m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$207
This oojo deal was found by Cheapflights users on 7/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:37 pm
PDX
- SJO
2 stops28h 38m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$208
This Avianca deal was found by Cheapflights users on 7/20. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:00 am
BOI
- SJO
2 stops15h 15m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$216
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sun 8/95:00 am
PDX
- LIR
1 stop9h 19m
United Airlines
Deal found 7/21![United Airlines logo]()
$217
This FlightHub deal was found by Cheapflights users on 7/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:37 pm
PDX
- SJO
2 stops16h 53m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Sat 8/2211:34 pm
PDX
- LIR
2 stops13h 04m
American Airlines
Deal found 7/23![American Airlines logo]()
$222
This oojo deal was found by Cheapflights users on 7/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:57 pm
PDX
- SJO
2 stops27h 18m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$224
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:49 pm
PDX
- SJO
1 stop13h 11m
American Airlines
Deal found 7/19![American Airlines logo]()
$228
Find flight deals from Oregon to Costa Rica
Keep the following information in mind while searching for Oregon to Costa Rica flight deals. Data was last updated July 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $401 (eDestinos) |
One-way from | $198 (oojo) |
Popular in | December |
Cheapest in | September |
Average price | $733 |
Cheapflights Fare Finder
Customize your flight search to find flights from Oregon to Costa Rica 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 July 24, 2026.
Use the filters below to find and compare flights from Oregon to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Sat 11/14
7:03 am-6:37 pm
1 stop9h 34m
Liberia
Thu 12/10
12:50 pm-8:49 pm
1 stop9h 59m
$480
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 10/16
11:30 pm-11:53 am
1 stop11h 23m
Liberia
Tue 10/27
11:50 am-12:35 am
2 stops13h 45m
$485
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sun 1/17
7:49 pm-8:32 am
1 stop10h 43m
San José Juan Santamaria Intl
Fri 1/22
1:15 am-12:19 pm
1 stop13h 04m
$498
MedfordSan José
MFR - SJO
MFRSJO
Medford
Fri 9/11
2:07 pm-7:15 am
1 stop16h 08m
San José Juan Santamaria Intl
Fri 9/25
8:45 am-10:46 pm
1 stop15h 01m
$500
BoiseSan José
BOI - SJO
BOISJO
Boise Air Term. Gowen Fld
Sat 9/19
7:05 pm-7:15 am
1 stop12h 10m
San José Juan Santamaria Intl
Sat 9/26
8:45 am-9:39 pm
1 stop12h 54m
$500
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 9/17
7:10 am-7:37 pm
1 stop11h 27m
San José Juan Santamaria Intl
Wed 9/23
7:55 am-10:53 pm
2 stops15h 58m
$503
BoiseLiberia
BOI - LIR
BOILIR
Boise Air Term. Gowen Fld
Sun 10/25
8:22 pm-7:51 pm
2 stops23h 29m
Liberia
Thu 10/29
9:16 am-12:35 pm
2 stops27h 19m
$535
EugeneSan José
EUG - SJO
EUGSJO
Eugene
Thu 9/3
7:25 am-7:15 am
1 stop22h 50m
San José Juan Santamaria Intl
Thu 9/10
8:45 am-8:25 pm
1 stop12h 40m
$535
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sat 9/19
7:15 pm-7:15 am
1 stop11h 00m
San José Juan Santamaria Intl
Fri 10/2
8:45 am-10:57 pm
1 stop15h 12m
$538
MedfordSan José
MFR - SJO
MFRSJO
Medford
Fri 10/23
6:28 pm-7:15 am
1 stop11h 47m
San José Juan Santamaria Intl
Sun 11/1
9:40 am-11:09 pm
1 stop15h 29m
$540
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Oregon to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Oregon with our price prediction graph.
PDX-SJO
BOI-SJO
PDX-LIR
BOI-LIR
RDM-SJO
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 Costa Rica
USOR-CR0
PDX-SJO
BOI-SJO
PDX-LIR
BOI-LIR
What is the cheapest month to book a flight from Oregon to Costa Rica?
Currently, September is the cheapest month in which you can book a flight from Oregon to Costa Rica (average of $411). Flying from Oregon to Costa Rica in December is currently the most expensive (average of $722). 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.
How far ahead should I book a flight from Oregon to Costa Rica?
The best time to book flights from Oregon to Costa Rica is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Related info for your journey
Find useful and relevant information for your journey from Oregon to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Alternative routes for Oregon to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Oregon to Costa Rica by cabin class
Find flights from Oregon to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Oregon and Costa Rica flights
Browse other Oregon and Costa Rica flight options. Last updated on July 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Costa Rica
Find the right flight back to Oregon after your stay in Costa Rica
Oregon to Costa Rica flights
Consider these flights traveling from Oregon to Costa Rica.
Top 5 airlines flying from Oregon to Costa Rica
Discover the top 5 airlines that operate flights from Oregon to Costa Rica. 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 July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$535 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$275 | Average$578 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$295 | Average$645 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$315 | Average$490 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$492 | Average$968 | FlexibilityNo cancel fee | On-time63% |