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$124+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Portland to Costa Rica

Keep the following information in mind while searching for Portland to Costa Rica flight deals. Data was last updated July 31, 2025.

Round-trip from

$349
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$919
From Portland to Costa Rica
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One-way flight from Portland to Costa Rica
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Highest demand for flights based on searches. 13% potential increase in price ($121 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Costa Rica

Cheapest flights from Portland to Costa Rica
Explore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:05 amPWM - SJO
2 stops12h 47mAmerican Airlines
Wed 10/16:00 amSJO - PWM
2 stops12h 11mAmerican Airlines
Deal found 7/28$349
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amPWM - SJO
1 stop8h 08mDelta
Wed 10/11:35 pmSJO - PWM
1 stop8h 36mDelta
Deal found 7/29$387
This Expedia deal was found by Cheapflights users on 7/30. 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.
Thu 9/252:17 pmPWM - SJO
1 stop24h 43mJetBlue
Wed 10/12:05 pmSJO - PWM
1 stop30h 02mJetBlue
Deal found 7/30$404
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amPWM - SJO
2 stops15h 37mUnited Airlines
Wed 10/112:44 pmSJO - PWM
1 stop8h 29mUnited Airlines
Deal found 7/29$448
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:05 pmPWM - SJO
1 stop18h 27mMultiple Airlines
Mon 9/15:54 pmSJO - PWM
2 stops42h 32mMultiple Airlines
Deal found 7/28$474
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 8/177:37 amPWM - LIR
1 stop29h 48mAmerican Airlines
Sun 8/242:00 pmLIR - PWM
2 stops19h 38mAmerican Airlines
Deal found 7/30$661
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 8/176:00 amPWM - LIR
1 stop8h 00mDelta
Sun 8/241:25 pmLIR - PWM
1 stop8h 38mDelta
Deal found 7/30$754
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/178:52 pmPWM - LIR
3 stops20h 38mMultiple Airlines
Sun 8/247:55 amLIR - PWM
3 stops25h 39mMultiple Airlines
Deal found 7/30$1,068

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Portland to Costa Rica that are best for you.

Fly from

Portland

Fly to

Costa Rica

Route

Depart

Return

Price

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 9/25

7:05 am-5:52 pm

2 stops12h 47m

San José Juan Santamaria Intl

Wed 10/1

6:00 am-8:11 pm

2 stops12h 11m

$349

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 9/25

6:00 am-12:08 pm

1 stop8h 08m

San José Juan Santamaria Intl

Wed 10/1

1:35 pm-12:11 am

1 stop8h 36m

$387

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 9/25

2:17 pm-1:00 pm

1 stop24h 43m

San José Juan Santamaria Intl

Wed 10/1

2:05 pm-10:07 pm

1 stop30h 02m

$404

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 9/25

8:00 am-7:37 pm

2 stops13h 37m

San José Juan Santamaria Intl

Wed 10/1

1:30 pm-9:44 pm

2 stops30h 14m

$448

PortlandSan José

PWM - SJO

PWMSJO

Portland

Mon 8/25

6:05 pm-10:32 am

1 stop18h 27m

San José Juan Santamaria Intl

Mon 9/1

5:54 pm-2:26 pm

2 stops42h 32m

$474

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sun 8/17

7:37 am-11:25 am

1 stop29h 48m

Liberia

Sun 8/24

2:00 pm-11:38 am

2 stops19h 38m

$661

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sun 8/17

6:00 am-12:00 pm

1 stop8h 00m

Liberia

Sun 8/24

1:25 pm-12:03 am

1 stop8h 38m

$754

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sun 8/17

8:52 pm-3:30 pm

3 stops20h 38m

Liberia

Sun 8/24

7:55 am-11:34 am

3 stops25h 39m

$1,068

PortlandSan José

PWM - SJO

PWMSJO

Portland

Wed 9/3

9:18 am-5:57 pm

1 stop10h 39m

$124

PortlandSan José

PWM - SJO

PWMSJO

Portland

Wed 9/3

6:00 am-12:10 pm

1 stop8h 10m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 14 results
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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.
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

What is the cheapest month to book a flight from Portland, Maine to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Costa Rica (average of $398). Flying from Portland, Maine to Costa Rica in March is currently the most expensive (average of $555). 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.

What is the cheapest time of day to fly from PWM to CR?

Find hourly flight availability from Portland to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Costa Rica as you normally would.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated July 31, 2025.
See what other customers who have flown with Delta, United Airlines, and JetBlue 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.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,914 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What airport do you fly from for flights from Portland to Costa Rica?

    For a flight from Portland to Costa Rica, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city.

  • What are the cheapest airlines to fly from Portland, Maine to Costa Rica one-way?

    $124 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $141 and $367, respectively.

  • Can I find deals for flights from Portland to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Portland to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Costa Rica.

  • Can I find deals for business class flights from Portland to Costa Rica?

    Yes. Cheapflights offers flight deals from Portland to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Costa Rica (average of $398). Flying from Portland, Maine to Costa Rica in March is currently the most expensive (average of $555). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Portland to Costa Rica

Discover the top 4 airlines that operate flights from Portland to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$425Average$765FlexibilityNo cancel feeOn-time71%
DeltaCheapest$462Average$782FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$528Average$790FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$551Average$1,120FlexibilityNo cancel feeOn-time63%

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