$194+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Costa Rica with Cheapflights
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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 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 June 15, 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 June 15, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:00 pm
PDX
- SJO
2 stops21h 52m
American Airlines
Tue 9/152:57 pm
SJO
- PDX
2 stops21h 02m
American Airlines
Deal found 6/11![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:59 pm
PDX
- SJO
1 stop11h 22m
United Airlines
Fri 10/28:45 am
SJO
- PDX
1 stop13h 15m
United Airlines
Deal found 6/11![United Airlines logo]()
$396
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:10 am
PDX
- SJO
1 stop11h 27m
United Airlines
Tue 9/227:55 am
SJO
- PDX
2 stops15h 50m
United Airlines
Deal found 6/11![United Airlines logo]()
$401
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:03 am
PDX
- SJO
2 stops15h 12m
Multiple Airlines
Tue 9/15:45 am
SJO
- PDX
2 stops16h 05m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$405
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Wed 8/129:40 am
SJO
- PDX
2 stops24h 41m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$408
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 9/612:40 pm
SJO
- PDX
3 stops21h 45m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$409
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:00 am
PDX
- SJO
2 stops15h 40m
Multiple Airlines
Thu 8/139:40 am
SJO
- PDX
2 stops24h 41m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$411
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:37 pm
PDX
- SJO
3 stops17h 08m
Multiple Airlines
Mon 8/249:40 am
SJO
- PDX
2 stops24h 45m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:10 am
PDX
- SJO
1 stop11h 29m
United Airlines
Fri 11/132:20 pm
SJO
- PDX
1 stop10h 51m
United Airlines
Deal found 6/10![United Airlines logo]()
$415
This Avianca deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca 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
Thu 8/135:45 am
SJO
- PDX
2 stops16h 03m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$416
This Avianca deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca 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 8/145:05 am
SJO
- PDX
2 stops12h 42m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$418
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:27 pm
PDX
- SJO
2 stops24h 48m
Multiple Airlines
Mon 8/173:10 pm
SJO
- PDX
2 stops19h 11m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$419
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 June 15, 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 June 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:40 pm
PDX
- LIR
1 stop10h 40m
Alaska Airlines
Tue 12/87:35 pm
LIR
- PDX
1 stop19h 51m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:05 pm
PDX
- LIR
2 stops24h 32m
United Airlines
Thu 11/512:50 pm
LIR
- PDX
1 stop11h 48m
United Airlines
Deal found 6/14![United Airlines logo]()
$561
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:05 pm
PDX
- SJO
2 stops17h 49m
Delta
Tue 9/151:25 pm
SJO
- PDX
2 stops20h 16m
Delta
Deal found 6/10![Delta logo]()
$563
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:30 pm
PDX
- LIR
1 stop15h 50m
Alaska Airlines
Wed 12/910:00 am
LIR
- PDX
1 stop12h 31m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$496
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:40 pm
PDX
- LIR
1 stop10h 40m
Alaska Airlines
Thu 12/107:35 pm
LIR
- PDX
1 stop17h 50m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:45 pm
PDX
- SJO
1 stop13h 09m
Delta
Wed 9/161:25 pm
SJO
- PDX
2 stops20h 16m
Delta
Deal found 6/10![Delta logo]()
$563
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:59 pm
PDX
- SJO
1 stop18h 38m
United Airlines
Wed 7/158:45 am
SJO
- PDX
1 stop15h 03m
United Airlines
Deal found 6/14![United Airlines logo]()
$588
This Alaska Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am
PDX
- LIR
1 stop9h 25m
Alaska Airlines
Fri 12/117:35 pm
LIR
- PDX
1 stop15h 50m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:10 am
PDX
- SJO
1 stop11h 27m
United Airlines
Sun 9/138:45 am
SJO
- PDX
1 stop16h 49m
United Airlines
Deal found 6/15![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:43 pm
PDX
- SJO
1 stop14h 32m
United Airlines
Sat 9/198:45 am
SJO
- PDX
1 stop10h 34m
United Airlines
Deal found 6/10![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:16 am
PDX
- LIR
2 stops26h 40m
United Airlines
Fri 7/1711:10 am
LIR
- PDX
2 stops23h 37m
United Airlines
Deal found 6/11![United Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/281:17 pm
PDX
- SJO
1 stop16h 58m
United Airlines
Fri 7/107:55 am
SJO
- PDX
2 stops16h 18m
United Airlines
Deal found 6/12![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:00 am
PDX
- LIR
2 stops30h 10m
United Airlines
Sun 9/131:20 pm
LIR
- PDX
3 stops21h 51m
United Airlines
Deal found 6/13![United Airlines logo]()
$635
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:59 pm
PDX
- SJO
1 stop9h 12m
United Airlines
Tue 8/118:45 am
SJO
- PDX
1 stop15h 00m
United Airlines
Deal found 6/11![United Airlines logo]()
$638
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 pm
PDX
- LIR
1 stop19h 29m
United Airlines
Tue 7/143:27 pm
LIR
- PDX
1 stop28h 51m
United Airlines
Deal found 6/14![United Airlines logo]()
$647
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:59 pm
PDX
- LIR
1 stop11h 11m
United Airlines
Sat 7/184:05 pm
LIR
- PDX
2 stops29h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$649
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:50 pm
PDX
- LIR
2 stops18h 35m
United Airlines
Fri 7/1711:10 am
LIR
- PDX
2 stops23h 37m
United Airlines
Deal found 6/10![United Airlines logo]()
$649
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:00 am
PDX
- LIR
1 stop9h 19m
United Airlines
Tue 7/143:27 pm
LIR
- PDX
1 stop28h 51m
United Airlines
Deal found 6/12![United Airlines logo]()
$766
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:16 am
PDX
- LIR
2 stops27h 03m
United Airlines
Wed 8/53:27 pm
LIR
- PDX
2 stops19h 20m
United Airlines
Deal found 6/13![United Airlines logo]()
$796
Last-minute flights from Portland to Costa RicaDiscover last-minute flight deals from Portland to Costa Rica. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Costa Rica. Data last updated June 15, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:20 am
PDX
- SJO
2 stops24h 25m
Multiple Airlines
Tue 12/155:00 am
SJO
- PDX
2 stops13h 27m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:59 pm
PDX
- SJO
1 stop9h 12m
United Airlines
Thu 7/28:45 am
SJO
- PDX
1 stop15h 03m
United Airlines
Deal found 6/15![United Airlines logo]()
$468
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:27 pm
PDX
- SJO
2 stops25h 13m
Multiple Airlines
Tue 12/153:05 pm
SJO
- PDX
2 stops20h 20m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$479
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:27 pm
PDX
- SJO
2 stops25h 13m
Multiple Airlines
Wed 11/257:50 pm
SJO
- PDX
2 stops22h 37m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:59 pm
PDX
- LIR
1 stop11h 11m
United Airlines
Fri 7/1711:10 am
LIR
- PDX
1 stop12h 38m
United Airlines
Deal found 6/11![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:59 pm
PDX
- LIR
1 stop8h 51m
United Airlines
Fri 7/1711:10 am
LIR
- PDX
1 stop12h 38m
United Airlines
Deal found 6/10![United Airlines logo]()
$473
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:37 pm
PDX
- SJO
3 stops17h 08m
Multiple Airlines
Tue 8/45:45 am
SJO
- PDX
2 stops17h 15m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$522
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:45 am
PDX
- SJO
2 stops11h 55m
Multiple Airlines
Tue 8/45:45 am
SJO
- PDX
2 stops17h 15m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$524
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:27 pm
PDX
- SJO
3 stops20h 23m
Multiple Airlines
Thu 8/69:40 am
SJO
- PDX
2 stops24h 41m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$492
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Tue 8/45:45 am
SJO
- PDX
2 stops17h 15m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$517
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:27 pm
PDX
- SJO
2 stops24h 48m
Multiple Airlines
Sat 8/85:05 am
SJO
- PDX
2 stops12h 42m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$476
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:39 pm
PDX
- SJO
2 stops31h 36m
Multiple Airlines
Tue 8/45:05 am
SJO
- PDX
2 stops12h 42m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$503
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 June 15, 2026.
Search for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:00 am
PDX
- SJO
2 stops15h 15m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$194
This oojo deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:45 pm
PDX
- SJO
2 stops31h 30m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$200
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:14 pm
PDX
- SJO
1 stop17h 01m
United Airlines
Deal found 6/12![United Airlines logo]()
$213
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:15 am
PDX
- LIR
1 stop12h 04m
United Airlines
Deal found 6/11![United Airlines logo]()
$216
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/274:15 pm
PDX
- LIR
2 stops18h 55m
United Airlines
Deal found 6/11![United Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:50 pm
PDX
- LIR
1 stop19h 29m
United Airlines
Deal found 6/10![United Airlines logo]()
$262
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:00 am
PDX
- SJO
2 stops15h 40m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$266
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2610:40 pm
PDX
- LIR
2 stops13h 38m
American Airlines
Deal found 6/11![American Airlines logo]()
$266
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:59 pm
PDX
- SJO
1 stop18h 38m
United Airlines
Deal found 6/11![United Airlines logo]()
$273
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:45 pm
PDX
- LIR
1 stop13h 28m
American Airlines
Deal found 6/14![American Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:40 pm
PDX
- LIR
2 stops13h 38m
American Airlines
Deal found 6/11![American Airlines logo]()
$281
This Air Canada deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:10 pm
PDX
- LIR
2 stops16h 30m
Air Canada
Deal found 6/14![Air Canada logo]()
$309
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (American Airlines) |
One-way from | $194 (oojo) |
Popular in | July |
Cheapest in | September |
Average price | $670 |
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 June 15, 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
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Sat 12/5
5:40 pm-6:20 am
1 stop10h 40m
Liberia
Tue 12/8
7:35 pm-1:26 pm
1 stop19h 51m
$450
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Wed 12/2
12:30 pm-6:20 am
1 stop15h 50m
Liberia
Wed 12/9
10:00 am-8:31 pm
1 stop12h 31m
$496
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Wed 12/2
5:40 pm-6:20 am
1 stop10h 40m
Liberia
Thu 12/10
7:35 pm-11:25 am
1 stop17h 50m
$496
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Thu 12/3
7:00 am-6:25 pm
1 stop9h 25m
Liberia
Fri 12/11
7:35 pm-9:25 am
1 stop15h 50m
$510
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 11/2
4:05 pm-6:37 pm
2 stops24h 32m
Liberia
Thu 11/5
12:50 pm-10:38 pm
1 stop11h 48m
$561
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 9/10
5:05 pm-11:54 am
2 stops17h 49m
San José Juan Santamaria Intl
Tue 9/15
1:25 pm-8:41 am
2 stops20h 16m
$563
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sun 9/13
9:45 pm-11:54 am
1 stop13h 09m
San José Juan Santamaria Intl
Wed 9/16
1:25 pm-8:41 am
2 stops20h 16m
$563
PortlandSan José
PDX - SJO
PDXSJO
Portland
Mon 6/29
11:59 pm-7:37 pm
1 stop18h 38m
San José Juan Santamaria Intl
Wed 7/15
8:45 am-10:48 pm
1 stop15h 03m
$588
PortlandSan José
PDX - SJO
PDXSJO
Portland
Wed 9/2
7:10 am-7:37 pm
1 stop11h 27m
San José Juan Santamaria Intl
Sun 9/13
8:45 am-12:34 am
1 stop16h 49m
$588
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 9/10
3:43 pm-7:15 am
1 stop14h 32m
San José Juan Santamaria Intl
Sat 9/19
8:45 am-6:19 pm
1 stop10h 34m
$588
Showing 1-10 of 31 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, April is the cheapest month in which you can book a flight from Portland to Costa Rica (average of $157). Flying from Portland to Costa Rica in May is currently the most expensive (average of $309). 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 30 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 June 15, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, 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.
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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.
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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 June 15, 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$537 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$275 | Average$518 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$295 | Average$548 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$315 | Average$465 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$492 | Average$972 | FlexibilityNo cancel fee | On-time63% |