$139+ Cheap flights from Portland, ME (PWM) 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJO
May 2 — May 91
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 April 2, 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 April 2, 2026.
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:02 pm
PWM
- LIR
2 stops20h 26m
American Airlines
Fri 5/812:30 pm
LIR
- PWM
2 stops20h 24m
American Airlines
Deal found 3/28![American Airlines logo]()
$381
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 6/25:57 pm
PWM
- SJO
2 stops21h 12m
American Airlines
Fri 6/121:59 pm
SJO
- PWM
1 stop25h 08m
American Airlines
Deal found 4/1![American Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/117:23 pm
PWM
- SJO
2 stops17h 44m
American Airlines
Wed 4/152:22 pm
SJO
- PWM
2 stops18h 53m
American Airlines
Deal found 3/30![American Airlines logo]()
$396
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
PWM
- SJO
2 stops15h 07m
GOL
Mon 8/1712:57 pm
SJO
- PWM
2 stops20h 15m
GOL
Deal found 3/30![GOL logo]()
$399
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/2711:57 am
PWM
- SJO
1 stop25h 38m
American Airlines
Mon 5/42:22 pm
SJO
- PWM
2 stops20h 16m
American Airlines
Deal found 3/29![American Airlines logo]()
$403
This Expedia deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
PWM
- SJO
1 stop8h 50m
JetBlue
Sat 6/131:41 pm
SJO
- PWM
1 stop8h 44m
JetBlue
Deal found 3/31![JetBlue logo]()
$417
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 6/25:57 pm
PWM
- SJO
2 stops21h 12m
American Airlines
Sat 6/131:59 pm
SJO
- PWM
2 stops18h 38m
American Airlines
Deal found 3/31![American Airlines logo]()
$435
This Priceline deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 am
PWM
- SJO
1 stop7h 56m
JetBlue
Mon 5/411:59 pm
SJO
- PWM
1 stop21h 04m
JetBlue
Deal found 3/29![JetBlue logo]()
$444
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:30 am
PWM
- LIR
1 stop8h 05m
JetBlue
Thu 5/71:00 pm
LIR
- PWM
2 stops32h 03m
JetBlue
Deal found 3/28![JetBlue logo]()
$450
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/156:00 am
PWM
- SJO
2 stops15h 07m
American Airlines
Fri 5/221:59 pm
SJO
- PWM
1 stop25h 08m
American Airlines
Deal found 3/30![American Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/26:01 pm
PWM
- LIR
2 stops21h 39m
American Airlines
Wed 5/62:40 pm
LIR
- PWM
2 stops17h 27m
American Airlines
Deal found 3/30![American Airlines logo]()
$463
This Expedia deal was found by Cheapflights users on 3/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:30 am
PWM
- SJO
1 stop16h 44m
JetBlue
Mon 4/2711:59 pm
SJO
- PWM
1 stop21h 00m
JetBlue
Deal found 3/28![JetBlue logo]()
$465
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 April 2, 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 April 2, 2026.
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 5/51:18 pm
PWM
- LIR
1 stop24h 10m
American Airlines
Fri 5/812:30 pm
LIR
- PWM
2 stops19h 54m
American Airlines
Deal found 3/29![American Airlines logo]()
$389
This Priceline deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 am
PWM
- SJO
1 stop7h 56m
JetBlue
Mon 5/411:59 pm
SJO
- PWM
1 stop21h 04m
JetBlue
Deal found 3/29![JetBlue logo]()
$444
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/99:40 am
PWM
- SJO
2 stops28h 41m
United Airlines
Fri 5/1512:44 pm
SJO
- PWM
1 stop8h 39m
United Airlines
Deal found 4/1![United Airlines logo]()
$495
This Delta deal was found by Cheapflights users on 3/28. 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 5/15:26 pm
PWM
- LIR
2 stops20h 34m
Delta
Thu 5/71:25 pm
LIR
- PWM
2 stops18h 58m
Delta
Deal found 3/28![Delta logo]()
$519
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/2711:57 am
PWM
- SJO
1 stop25h 38m
American Airlines
Mon 5/42:22 pm
SJO
- PWM
2 stops20h 16m
American Airlines
Deal found 3/29![American Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 3/28. 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 5/35:26 pm
PWM
- LIR
2 stops20h 34m
Delta
Thu 5/71:25 pm
LIR
- PWM
2 stops18h 58m
Delta
Deal found 3/28![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 3/28. 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 5/39:00 am
PWM
- LIR
2 stops31h 25m
United Airlines
Fri 5/83:27 pm
LIR
- PWM
2 stops20h 47m
United Airlines
Deal found 3/28![United Airlines logo]()
$526
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/116:01 pm
PWM
- SJO
2 stops19h 34m
American Airlines
Wed 5/206:30 am
SJO
- PWM
2 stops14h 16m
American Airlines
Deal found 4/1![American Airlines logo]()
$494
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
PWM
- SJO
1 stop7h 56m
JetBlue
Tue 4/2811:59 pm
SJO
- PWM
1 stop21h 03m
JetBlue
Deal found 3/28![JetBlue logo]()
$548
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 5/22:51 pm
PWM
- LIR
2 stops23h 09m
Delta
Thu 5/71:25 pm
LIR
- PWM
2 stops18h 58m
Delta
Deal found 3/28![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/134:28 pm
PWM
- SJO
2 stops19h 43m
United Airlines
Fri 4/171:25 pm
SJO
- PWM
2 stops18h 57m
United Airlines
Deal found 3/30![United Airlines logo]()
$536
This JetBlue deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
PWM
- LIR
1 stop7h 55m
JetBlue
Mon 4/2711:45 am
LIR
- PWM
1 stop9h 14m
JetBlue
Deal found 3/30![JetBlue logo]()
$560
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 6/205:57 pm
PWM
- SJO
1 stop21h 02m
American Airlines
Sun 6/2811:59 pm
SJO
- PWM
2 stops11h 39m
American Airlines
Deal found 4/1![American Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/134:28 pm
PWM
- SJO
2 stops19h 43m
United Airlines
Wed 4/1511:13 am
SJO
- PWM
2 stops21h 09m
United Airlines
Deal found 3/30![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 5/134:50 pm
PWM
- LIR
2 stops23h 35m
United Airlines
Fri 5/153:27 pm
LIR
- PWM
2 stops27h 52m
United Airlines
Deal found 3/27![United Airlines logo]()
$551
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 4/207:23 pm
PWM
- SJO
2 stops19h 45m
American Airlines
Tue 4/2812:10 pm
SJO
- PWM
2 stops21h 05m
American Airlines
Deal found 4/1![American Airlines logo]()
$570
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 6/237:19 pm
PWM
- LIR
2 stops19h 59m
American Airlines
Wed 7/12:45 pm
LIR
- PWM
2 stops21h 31m
American Airlines
Deal found 3/30![American Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/47:10 pm
PWM
- LIR
2 stops19h 00m
United Airlines
Wed 5/61:20 pm
LIR
- PWM
2 stops29h 59m
United Airlines
Deal found 3/30![United Airlines logo]()
$661
Last-minute flights from Portland to Costa RicaDiscover last-minute flight deals from Portland to Costa Rica. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Costa Rica. Data last updated April 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/117:23 pm
PWM
- SJO
2 stops17h 44m
American Airlines
Wed 4/152:22 pm
SJO
- PWM
2 stops18h 53m
American Airlines
Deal found 3/30![American Airlines logo]()
$396
This Expedia deal was found by Cheapflights users on 3/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:30 am
PWM
- SJO
1 stop16h 44m
JetBlue
Mon 4/2711:59 pm
SJO
- PWM
1 stop21h 00m
JetBlue
Deal found 3/28![JetBlue logo]()
$465
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 4/2711:57 am
PWM
- SJO
1 stop25h 38m
American Airlines
Mon 5/42:22 pm
SJO
- PWM
2 stops20h 16m
American Airlines
Deal found 3/29![American Airlines logo]()
$403
This Priceline deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 am
PWM
- SJO
1 stop7h 56m
JetBlue
Mon 5/411:59 pm
SJO
- PWM
1 stop21h 04m
JetBlue
Deal found 3/29![JetBlue logo]()
$444
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
PWM
- SJO
2 stops15h 07m
GOL
Mon 8/1712:57 pm
SJO
- PWM
2 stops20h 15m
GOL
Deal found 3/30![GOL logo]()
$399
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:30 am
PWM
- LIR
1 stop8h 05m
JetBlue
Thu 5/71:00 pm
LIR
- PWM
2 stops32h 03m
JetBlue
Deal found 3/28![JetBlue logo]()
$450
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/26:01 pm
PWM
- LIR
2 stops21h 39m
American Airlines
Wed 5/62:40 pm
LIR
- PWM
2 stops17h 27m
American Airlines
Deal found 3/30![American Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:02 pm
PWM
- LIR
2 stops20h 26m
American Airlines
Fri 5/812:30 pm
LIR
- PWM
2 stops20h 24m
American Airlines
Deal found 3/28![American Airlines logo]()
$381
This American Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 5/97:05 am
PWM
- SJO
2 stops16h 31m
American Airlines
Fri 5/1512:35 pm
SJO
- PWM
1 stop8h 11m
American Airlines
Deal found 3/29![American Airlines logo]()
$435
This Expedia deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:20 am
PWM
- SJO
1 stop17h 00m
JetBlue
Sat 5/1611:59 pm
SJO
- PWM
1 stop21h 03m
JetBlue
Deal found 3/30![JetBlue logo]()
$484
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:01 pm
PWM
- SJO
2 stops19h 24m
GOL
Sat 5/1612:10 pm
SJO
- PWM
2 stops21h 05m
GOL
Deal found 3/30![GOL logo]()
$487
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 5/156:00 am
PWM
- SJO
2 stops15h 07m
American Airlines
Fri 5/221:59 pm
SJO
- PWM
1 stop25h 08m
American Airlines
Deal found 3/30![American Airlines logo]()
$456
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 April 2, 2026.
Search for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/286:00 am
PWM
- SJO
2 stops15h 07m
American Airlines
Deal found 3/31![American Airlines logo]()
$139
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:21 am
PWM
- SJO
1 stop8h 35m
Delta
Deal found 3/31![Delta logo]()
$143
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/56:01 pm
PWM
- SJO
2 stops19h 24m
American Airlines
Deal found 3/31![American Airlines logo]()
$144
This FlightHub deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” 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 6/26:00 am
PWM
- SJO
1 stop8h 50m
JetBlue
Deal found 4/2![JetBlue logo]()
$151
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:21 am
PWM
- SJO
1 stop8h 35m
Delta
Deal found 3/30![Delta logo]()
$164
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 5/64:50 pm
PWM
- LIR
2 stops21h 20m
United Airlines
Deal found 3/27![United Airlines logo]()
$172
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/287:30 am
PWM
- SJO
1 stop16h 44m
JetBlue
Deal found 3/31![JetBlue logo]()
$192
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” 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 5/117:23 pm
PWM
- SJO
2 stops19h 41m
American Airlines
Deal found 4/1![American Airlines logo]()
$198
This Priceline deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 am
PWM
- SJO
1 stop17h 00m
JetBlue
Deal found 4/1![JetBlue logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:57 am
PWM
- SJO
3 stops26h 36m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$234
This Orbitz deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:30 am
PWM
- SJO
3 stops30h 15m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$242
This KAYAK deal was found by Cheapflights users on 3/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:50 pm
PWM
- LIR
1 stop16h 54m
Avianca
Deal found 3/27![Avianca logo]()
$242
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 April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $381 (American Airlines) |
One-way from | $139 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $979 |
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 April 2, 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
PWM - LIR
PWMLIR
Portland
Tue 5/5
1:18 pm-11:28 am
1 stop24h 10m
Liberia
Fri 5/8
12:30 pm-10:24 am
2 stops19h 54m
$389
PortlandSan José
PWM - SJO
PWMSJO
Portland
Mon 4/27
11:57 am-11:35 am
1 stop25h 38m
San José Juan Santamaria Intl
Mon 5/4
2:22 pm-12:38 pm
2 stops20h 16m
$403
PortlandSan José
PWM - SJO
PWMSJO
Portland
Mon 4/27
6:00 am-11:56 am
1 stop7h 56m
San José Juan Santamaria Intl
Mon 5/4
11:59 pm-11:03 pm
1 stop21h 04m
$444
PortlandSan José
PWM - SJO
PWMSJO
Portland
Mon 5/11
6:01 pm-11:35 am
2 stops19h 34m
San José Juan Santamaria Intl
Wed 5/20
6:30 am-10:46 pm
2 stops14h 16m
$494
PortlandSan José
PWM - SJO
PWMSJO
Portland
Sat 5/9
9:40 am-12:21 pm
2 stops28h 41m
San José Juan Santamaria Intl
Fri 5/15
12:44 pm-11:23 pm
1 stop8h 39m
$495
PortlandSan José
PWM - SJO
PWMSJO
Portland
Sat 6/20
5:57 pm-12:59 pm
1 stop21h 02m
San José Juan Santamaria Intl
Sun 6/28
11:59 pm-1:38 pm
2 stops11h 39m
$510
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Fri 5/1
5:26 pm-12:00 pm
2 stops20h 34m
Liberia
Thu 5/7
1:25 pm-10:23 am
2 stops18h 58m
$519
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Sun 5/3
5:26 pm-12:00 pm
2 stops20h 34m
Liberia
Thu 5/7
1:25 pm-10:23 am
2 stops18h 58m
$519
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Sat 5/2
2:51 pm-12:00 pm
2 stops23h 09m
Liberia
Thu 5/7
1:25 pm-10:23 am
2 stops18h 58m
$519
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Sun 5/3
9:00 am-2:25 pm
2 stops31h 25m
Liberia
Fri 5/8
3:27 pm-2:14 pm
2 stops20h 47m
$526
Showing 1-10 of 30 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.
PWM-SJO
PWM-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
PWM-CR0
PWM-SJO
PWM-LIR
What is the cheapest month to book a flight from Portland, Maine to Costa Rica?
Currently, July is the cheapest month in which you can book a flight from Portland, Maine to Costa Rica (average of $148). Flying from Portland, Maine to Costa Rica in August is currently the most expensive (average of $289). 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 April 2, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Portland to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 April 2, 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 April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$140 | Average$644 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$236 | Average$314 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$274 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$431 | Average$703 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$577 | Average$798 | FlexibilityNo cancel fee | On-time63% |