$198+ Cheap flights from Portland (PDX) 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 28 — Sep 41
Round-trip
1 adult, Economy
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Find cheap flights from Portland 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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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 Portland to Costa Rica
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Cheapest flights from Portland to Costa RicaExplore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
Explore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:33 pm
PDX
- SJO
2 stops16h 12m
Multiple Airlines
Thu 10/15:45 am
SJO
- PDX
2 stops15h 51m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$408
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Mon 9/2812:40 pm
SJO
- PDX
3 stops21h 45m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$409
This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:33 pm
PDX
- SJO
2 stops16h 12m
Multiple Airlines
Mon 9/219:40 am
SJO
- PDX
2 stops24h 45m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$411
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:18 pm
PDX
- SJO
2 stops16h 12m
Multiple Airlines
Sat 10/1712:40 pm
SJO
- PDX
3 stops21h 51m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$412
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:27 pm
PDX
- SJO
3 stops20h 23m
Multiple Airlines
Fri 8/147:45 pm
SJO
- PDX
2 stops22h 02m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$413
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Tue 10/65:45 am
SJO
- PDX
2 stops15h 48m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$414
This Avianca deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 7/26![Multiple Airlines logo]()
$416
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Sun 9/63:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$417
This Avianca deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:45 am
PDX
- SJO
2 stops11h 55m
Multiple Airlines
Tue 11/105:45 am
SJO
- PDX
2 stops16h 46m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$418
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:33 am
PDX
- SJO
2 stops21h 12m
Multiple Airlines
Fri 10/29:40 am
SJO
- PDX
2 stops24h 51m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$421
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:30 pm
PDX
- SJO
2 stops20h 00m
Multiple Airlines
Sun 10/2512:40 pm
SJO
- PDX
3 stops21h 51m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:08 pm
PDX
- LIR
2 stops13h 10m
American Airlines
Fri 9/252:47 pm
LIR
- PDX
2 stops21h 12m
American Airlines
Deal found 7/25![American Airlines logo]()
$471
Best flights from Portland to Costa RicaDiscover carefully curated flight deals from Portland to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from Portland to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
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 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:34 pm
PDX
- LIR
2 stops17h 26m
Delta
Tue 9/151:25 pm
LIR
- PDX
2 stops23h 21m
Delta
Deal found 7/28![Delta logo]()
$585
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.
Mon 9/213:43 pm
PDX
- LIR
3 stops19h 27m
United Airlines
Fri 9/251:20 pm
LIR
- PDX
2 stops21h 55m
United Airlines
Deal found 7/23![United Airlines logo]()
$591
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:00 pm
PDX
- LIR
2 stops20h 00m
Delta
Fri 9/111:25 pm
LIR
- PDX
2 stops28h 12m
Delta
Deal found 7/28![Delta logo]()
$644
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:59 pm
PDX
- SJO
1 stop18h 38m
United Airlines
Thu 10/18:45 am
SJO
- PDX
1 stop10h 46m
United Airlines
Deal found 7/28![United Airlines logo]()
$614
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:10 am
PDX
- SJO
1 stop11h 27m
United Airlines
Mon 8/311:25 pm
SJO
- PDX
1 stop10h 34m
United Airlines
Deal found 7/25![United Airlines logo]()
$632
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:27 pm
PDX
- LIR
3 stops19h 43m
United Airlines
Tue 9/151:20 pm
LIR
- PDX
2 stops34h 25m
United Airlines
Deal found 7/25![United Airlines logo]()
$636
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:43 pm
PDX
- SJO
2 stops19h 38m
United Airlines
Sat 9/51:25 pm
SJO
- PDX
2 stops21h 46m
United Airlines
Deal found 7/24![United Airlines logo]()
$663
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:15 pm
PDX
- SJO
1 stop11h 00m
United Airlines
Sun 9/137:55 am
SJO
- PDX
2 stops15h 58m
United Airlines
Deal found 7/24![United Airlines logo]()
$663
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:05 pm
PDX
- SJO
2 stops19h 16m
United Airlines
Thu 9/108:45 am
SJO
- PDX
1 stop16h 52m
United Airlines
Deal found 7/24![United Airlines logo]()
$663
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:26 pm
PDX
- SJO
2 stops15h 56m
United Airlines
Thu 10/297:45 am
SJO
- PDX
2 stops14h 28m
United Airlines
Deal found 7/27![United Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:15 pm
PDX
- SJO
2 stops16h 06m
United Airlines
Wed 11/118:45 am
SJO
- PDX
2 stops14h 28m
United Airlines
Deal found 7/27![United Airlines logo]()
$673
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:43 pm
PDX
- LIR
3 stops19h 27m
United Airlines
Fri 9/111:20 pm
LIR
- PDX
2 stops21h 12m
United Airlines
Deal found 7/26![United Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:50 am
PDX
- LIR
2 stops24h 20m
United Airlines
Wed 9/21:20 pm
LIR
- PDX
2 stops23h 40m
United Airlines
Deal found 7/25![United Airlines logo]()
$763
Last-minute flights from Portland to Costa RicaDiscover last-minute flight deals from Portland to Costa Rica. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Costa Rica. Data last updated July 29, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Fri 8/147:45 pm
SJO
- PDX
2 stops22h 02m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:59 pm
PDX
- LIR
1 stop11h 05m
American Airlines
Fri 8/212:45 pm
LIR
- PDX
2 stops21h 09m
American Airlines
Deal found 7/26![American Airlines logo]()
$599
This Avianca deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:45 am
PDX
- SJO
2 stops11h 55m
Multiple Airlines
Tue 11/105:45 am
SJO
- PDX
2 stops16h 46m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$418
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 7/27![Multiple Airlines logo]()
$414
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 7/26![Multiple Airlines logo]()
$423
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:53 pm
PDX
- SJO
3 stops31h 47m
Multiple Airlines
Sat 8/293:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$427
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:00 pm
PDX
- LIR
2 stops19h 29m
American Airlines
Fri 9/42:45 pm
LIR
- PDX
2 stops28h 15m
American Airlines
Deal found 7/27![American Airlines logo]()
$591
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
PDX
- LIR
2 stops28h 10m
United Airlines
Thu 9/101:20 pm
LIR
- PDX
2 stops21h 12m
United Airlines
Deal found 7/27![United Airlines logo]()
$601
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:34 pm
PDX
- LIR
2 stops13h 04m
American Airlines
Wed 9/92:47 pm
LIR
- PDX
2 stops23h 35m
American Airlines
Deal found 7/27![American Airlines logo]()
$544
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:30 pm
PDX
- LIR
2 stops21h 30m
Delta
Thu 9/101:25 pm
LIR
- PDX
2 stops20h 18m
Delta
Deal found 7/27![Delta logo]()
$551
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Sun 9/63:10 pm
SJO
- PDX
2 stops19h 15m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:50 am
PDX
- LIR
2 stops24h 10m
Delta
Wed 9/91:25 pm
LIR
- PDX
2 stops21h 26m
Delta
Deal found 7/27![Delta logo]()
$585
One-way flights from Portland to Costa RicaSearch for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 7/26![Multiple Airlines logo]()
$198
This Avianca deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:48 am
PDX
- SJO
2 stops11h 52m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$200
This oojo 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 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 stops16h 12m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$201
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:08 pm
PDX
- SJO
2 stops13h 49m
American Airlines
Deal found 7/26![American Airlines logo]()
$202
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:44 pm
PDX
- LIR
2 stops14h 34m
American Airlines
Deal found 7/26![American 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 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:49 pm
PDX
- SJO
1 stop13h 11m
American Airlines
Deal found 7/26![American Airlines logo]()
$228
This Travelocity deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:27 pm
PDX
- SJO
1 stop25h 19m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$241
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:10 am
PDX
- SJO
1 stop11h 27m
United Airlines
Deal found 7/27![United Airlines logo]()
$247
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:59 pm
PDX
- SJO
1 stop11h 22m
United Airlines
Deal found 7/28![United Airlines logo]()
$262
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:20 pm
PDX
- LIR
2 stops11h 40m
Delta
Deal found 7/24![Delta logo]()
$291
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:30 pm
PDX
- LIR
1 stop10h 47m
American Airlines
Deal found 7/24![American Airlines logo]()
$316
Find flight deals from Portland to Costa Rica
Keep the following information in mind while searching for Portland to Costa Rica flight deals. Data was last updated July 29, 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 | October |
Average price | $729 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 29, 2026.
Use the filters below to find and compare flights from Portland to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan José
PDX - SJO
PDXSJO
Portland
Wed 10/21
5:00 am-7:37 pm
2 stops13h 37m
San José Juan Santamaria Intl
Sun 10/25
8:40 am-6:24 pm
1 stop10h 44m
$543
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 9/11
5:34 pm-12:00 pm
2 stops17h 26m
Liberia
Tue 9/15
1:25 pm-11:46 am
2 stops23h 21m
$585
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 9/21
3:43 pm-12:10 pm
3 stops19h 27m
Liberia
Fri 9/25
1:20 pm-10:15 am
2 stops21h 55m
$591
PortlandSan José
PDX - SJO
PDXSJO
Portland
Mon 9/28
11:59 pm-7:37 pm
1 stop18h 38m
San José Juan Santamaria Intl
Thu 10/1
8:45 am-6:31 pm
1 stop10h 46m
$614
Quickest round-trip
PortlandSan José
PDX - SJO
PDXSJO
Portland
Mon 8/24
7:10 am-7:37 pm
1 stop11h 27m
San José Juan Santamaria Intl
Mon 8/31
1:25 pm-10:59 pm
1 stop10h 34m
$632
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 9/11
3:27 pm-12:10 pm
3 stops19h 43m
Liberia
Tue 9/15
1:20 pm-10:45 pm
2 stops34h 25m
$636
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Sun 9/6
3:00 pm-12:00 pm
2 stops20h 00m
Liberia
Fri 9/11
1:25 pm-4:37 pm
2 stops28h 12m
$644
PortlandSan José
PDX - SJO
PDXSJO
Portland
Mon 8/31
3:43 pm-12:21 pm
2 stops19h 38m
San José Juan Santamaria Intl
Sat 9/5
1:25 pm-10:11 am
2 stops21h 46m
$663
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 9/3
7:15 pm-7:15 am
1 stop11h 00m
San José Juan Santamaria Intl
Sun 9/13
7:55 am-10:53 pm
2 stops15h 58m
$663
PortlandSan José
PDX - SJO
PDXSJO
Portland
Tue 9/1
4:05 pm-12:21 pm
2 stops19h 16m
San José Juan Santamaria Intl
Thu 9/10
8:45 am-12:37 am
1 stop16h 52m
$663
Showing 1-10 of 26 resultsSorted by cheapest first
Best time to book a flight from Portland to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Portland with our price prediction graph.
PDX-SJO
PDX-LIR
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 Portland to Costa Rica
PDX-CR0
PDX-SJO
PDX-LIR
What is the cheapest month to book a flight from Portland to Costa Rica?
Currently, October is the cheapest month in which you can book a flight from Portland to Costa Rica (average of $433). Flying from Portland to Costa Rica in December is currently the most expensive (average of $731). 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 Portland to Costa Rica?
To ensure you get the cheapest price possible for a flight from Portland to Costa Rica, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Costa Rica
Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated July 29, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from Portland to Costa Rica. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Portland to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to Costa Rica
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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 Portland to Costa Rica by cabin class
Find flights from Portland to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Costa Rica flights
Browse other Portland and Costa Rica flight options. Last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Portland to Costa Rica
Discover the top 5 airlines that operate flights from Portland 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 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$538 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$275 | Average$539 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$295 | Average$580 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$315 | Average$500 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$492 | Average$968 | FlexibilityNo cancel fee | On-time63% |