$168+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Apr 14 — Apr 211
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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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 March 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 March 15, 2026.
This Avianca deal was found by Cheapflights users on 3/15. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:15 am
PDX
- SJO
2 stops15h 00m
Multiple Airlines
Tue 5/195:45 am
SJO
- PDX
2 stops17h 30m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/273:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Thu 5/71:25 pm
SJO
- PDX
1 stop10h 34m
United Airlines
Deal found 3/11![United Airlines logo]()
$378
This Avianca deal was found by Cheapflights users on 3/12. 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.
Tue 4/287:10 am
PDX
- SJO
2 stops15h 05m
Multiple Airlines
Thu 5/75:45 am
SJO
- PDX
2 stops18h 59m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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 5/149:26 pm
PDX
- SJO
1 stop25h 07m
Alaska Airlines
Mon 5/1812:53 am
SJO
- PDX
1 stop16h 45m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:40 pm
PDX
- SJO
1 stop20h 56m
American Airlines
Thu 5/711:35 pm
SJO
- PDX
1 stop18h 24m
American Airlines
Deal found 3/15![American Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 3/13. 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 5/67:45 pm
PDX
- SJO
2 stops15h 36m
United Airlines
Sat 5/168:45 am
SJO
- PDX
1 stop11h 01m
United Airlines
Deal found 3/13![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 3/14. 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.
Tue 9/156:57 pm
PDX
- SJO
2 stops16h 24m
United Airlines
Wed 9/237:55 am
SJO
- PDX
2 stops13h 55m
United Airlines
Deal found 3/14![United Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/93:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Thu 4/168:45 am
SJO
- PDX
1 stop10h 22m
United Airlines
Deal found 3/10![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 3/11. 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 3/307:14 pm
PDX
- SJO
1 stop11h 01m
United Airlines
Thu 5/2811:13 am
SJO
- PDX
2 stops14h 37m
United Airlines
Deal found 3/11![United Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:23 pm
PDX
- LIR
1 stop11h 05m
American Airlines
Wed 4/2212:27 pm
LIR
- PDX
1 stop12h 26m
American Airlines
Deal found 3/15![American Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:23 pm
PDX
- LIR
2 stops14h 17m
American Airlines
Tue 5/512:27 pm
LIR
- PDX
2 stops23h 34m
American Airlines
Deal found 3/13![American Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:37 pm
PDX
- LIR
1 stop14h 43m
Alaska Airlines
Sat 5/25:09 pm
LIR
- PDX
1 stop17h 21m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$450
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 March 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 March 15, 2026.
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/93:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Thu 4/168:45 am
SJO
- PDX
1 stop10h 22m
United Airlines
Deal found 3/10![United Airlines logo]()
$405
This BusinessClass deal was found by Cheapflights users on 3/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:45 pm
PDX
- SJO
1 stop10h 30m
Multiple Airlines
Tue 5/268:45 am
SJO
- PDX
1 stop17h 05m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$470
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 5/27:11 am
PDX
- SJO
1 stop15h 34m
Alaska Airlines
Tue 5/512:55 am
SJO
- PDX
1 stop16h 54m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 3/10. 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 3/307:14 pm
PDX
- SJO
1 stop11h 01m
United Airlines
Tue 4/78:45 am
SJO
- PDX
1 stop16h 59m
United Airlines
Deal found 3/10![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:14 pm
PDX
- SJO
1 stop17h 01m
United Airlines
Sun 9/208:45 am
SJO
- PDX
1 stop17h 02m
United Airlines
Deal found 3/11![United Airlines logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:49 pm
PDX
- LIR
1 stop11h 31m
Alaska Airlines
Thu 4/3011:20 am
LIR
- PDX
1 stop13h 24m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 5/27:45 pm
PDX
- SJO
1 stop10h 30m
United Airlines
Wed 5/67:55 am
SJO
- PDX
2 stops18h 04m
United Airlines
Deal found 3/10![United Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sun 4/127:05 pm
PDX
- SJO
2 stops23h 32m
United Airlines
Mon 4/207:55 am
SJO
- PDX
2 stops26h 53m
United Airlines
Deal found 3/10![United Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Tue 9/17:13 am
PDX
- SJO
1 stop11h 24m
United Airlines
Mon 9/148:45 am
SJO
- PDX
1 stop17h 02m
United Airlines
Deal found 3/15![United Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Mon 4/275:00 am
PDX
- LIR
1 stop9h 19m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops19h 11m
United Airlines
Deal found 3/12![United Airlines logo]()
$551
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:55 pm
PDX
- LIR
1 stop23h 30m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops22h 08m
United Airlines
Deal found 3/12![United Airlines logo]()
$564
Last-minute flights from Portland to Costa RicaDiscover last-minute flight deals from Portland to Costa Rica. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Costa Rica. Data last updated March 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Sun 3/2910:53 pm
PDX
- SJO
1 stop9h 32m
American Airlines
Wed 4/1511:35 pm
SJO
- PDX
1 stop24h 14m
American Airlines
Deal found 3/11![American Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 3/11. 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 3/307:14 pm
PDX
- SJO
1 stop11h 01m
United Airlines
Thu 5/2811:13 am
SJO
- PDX
2 stops14h 37m
United Airlines
Deal found 3/11![United Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:23 pm
PDX
- LIR
1 stop11h 05m
American Airlines
Wed 4/2212:27 pm
LIR
- PDX
1 stop12h 26m
American Airlines
Deal found 3/15![American Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/93:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Thu 4/168:45 am
SJO
- PDX
1 stop10h 22m
United Airlines
Deal found 3/10![United Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
PDX
- SJO
1 stop11h 23m
American Airlines
Thu 4/2311:35 pm
SJO
- PDX
1 stop18h 24m
American Airlines
Deal found 3/15![American Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:23 pm
PDX
- LIR
2 stops13h 47m
American Airlines
Sat 5/92:40 pm
LIR
- PDX
2 stops21h 21m
American Airlines
Deal found 3/15![American Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:28 pm
PDX
- SJO
1 stop13h 40m
American Airlines
Tue 4/282:08 pm
SJO
- PDX
2 stops21h 12m
American Airlines
Deal found 3/12![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:23 pm
PDX
- LIR
2 stops14h 17m
American Airlines
Tue 5/512:27 pm
LIR
- PDX
2 stops23h 34m
American Airlines
Deal found 3/13![American Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:37 pm
PDX
- LIR
1 stop14h 43m
Alaska Airlines
Sat 5/25:09 pm
LIR
- PDX
1 stop17h 21m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/273:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Thu 5/71:25 pm
SJO
- PDX
1 stop10h 34m
United Airlines
Deal found 3/11![United Airlines logo]()
$378
This Avianca deal was found by Cheapflights users on 3/12. 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.
Tue 4/287:10 am
PDX
- SJO
2 stops15h 05m
Multiple Airlines
Thu 5/75:45 am
SJO
- PDX
2 stops18h 59m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 3/14. 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 4/297:05 pm
PDX
- SJO
2 stops16h 16m
United Airlines
Wed 5/67:55 am
SJO
- PDX
1 stop12h 43m
United Airlines
Deal found 3/14![United Airlines logo]()
$403
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 March 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 March 15, 2026.
This American Airlines deal was found by Cheapflights users on 3/14. 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.
Sun 3/2910:53 pm
PDX
- SJO
1 stop9h 32m
American Airlines
Deal found 3/14![American Airlines logo]()
$168
This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:42 pm
PDX
- SJO
2 stops19h 08m
American Airlines
Deal found 3/12![American Airlines logo]()
$173
This Avianca deal was found by Cheapflights users on 3/12. 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.
Tue 4/710:31 am
PDX
- SJO
2 stops11h 44m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$178
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:30 pm
PDX
- SJO
1 stop25h 13m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:47 pm
PDX
- LIR
2 stops12h 23m
American Airlines
Deal found 3/15![American Airlines logo]()
$202
This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:15 am
PDX
- SJO
2 stops15h 23m
American Airlines
Deal found 3/12![American Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 3/11. 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 4/811:40 pm
PDX
- SJO
1 stop20h 56m
American Airlines
Deal found 3/11![American Airlines logo]()
$215
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/71:55 pm
PDX
- SJO
1 stop19h 16m
United Airlines
Deal found 3/11![United Airlines logo]()
$218
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Sun 4/121:55 pm
PDX
- SJO
1 stop19h 16m
United Airlines
Deal found 3/15![United Airlines logo]()
$220
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:45 am
PDX
- SJO
1 stop11h 58m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:30 pm
PDX
- SJO
1 stop14h 45m
United Airlines
Deal found 3/13![United Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 5/135:20 am
PDX
- LIR
3 stops29h 50m
United Airlines
Deal found 3/11![United Airlines logo]()
$263
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 March 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $375 (Avianca) |
One-way from | $168 (American Airlines) |
Popular in | June |
Cheapest in | September |
Average price | $610 |
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 March 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
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 4/9
3:30 pm-7:15 am
1 stop14h 45m
San José Juan Santamaria Intl
Thu 4/16
8:45 am-6:07 pm
1 stop10h 22m
$405
PortlandSan José
PDX - SJO
PDXSJO
Portland
Mon 3/30
7:14 pm-7:15 am
1 stop11h 01m
San José Juan Santamaria Intl
Tue 4/7
8:45 am-12:44 am
1 stop16h 59m
$462
PortlandSan José
PDX - SJO
PDXSJO
Portland
Tue 5/19
7:45 pm-7:15 am
1 stop10h 30m
San José Juan Santamaria Intl
Tue 5/26
8:45 am-12:50 am
1 stop17h 05m
$470
PortlandSan José
PDX - SJO
PDXSJO
Portland
Thu 9/10
1:14 pm-7:15 am
1 stop17h 01m
San José Juan Santamaria Intl
Sun 9/20
8:45 am-12:47 am
1 stop17h 02m
$472
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sat 5/2
7:11 am-11:45 pm
1 stop15h 34m
San José Juan Santamaria Intl
Tue 5/5
12:55 am-4:49 pm
1 stop16h 54m
$486
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sat 5/2
7:45 pm-7:15 am
1 stop10h 30m
San José Juan Santamaria Intl
Wed 5/6
7:55 am-12:59 am
2 stops18h 04m
$493
PortlandSan José
PDX - SJO
PDXSJO
Portland
Sun 4/12
7:05 pm-7:37 pm
2 stops23h 32m
San José Juan Santamaria Intl
Mon 4/20
7:55 am-9:48 am
2 stops26h 53m
$493
PortlandSan José
PDX - SJO
PDXSJO
Portland
Tue 9/1
7:13 am-7:37 pm
1 stop11h 24m
San José Juan Santamaria Intl
Mon 9/14
8:45 am-12:47 am
1 stop17h 02m
$508
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 4/27
5:00 am-3:19 pm
1 stop9h 19m
Liberia
Thu 4/30
3:27 pm-9:38 am
2 stops19h 11m
$551
Quickest round-trip
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 4/27
5:49 pm-6:20 am
1 stop11h 31m
Liberia
Thu 4/30
11:20 am-11:44 pm
1 stop13h 24m
$557
Showing 1-10 of 22 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, January is the cheapest month in which you can book a flight from Portland to Costa Rica (average of $275). Flying from Portland to Costa Rica in June is currently the most expensive (average of $399). 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.
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 March 15, 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.
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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
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 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 March 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 March 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$275 | Average$550 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$275 | Average$519 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$287 | Average$492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$295 | Average$525 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$537 | Average$715 | FlexibilityNo cancel fee | On-time63% |