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$211+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$296
(Delta)

One-way from

$211
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$765
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. 1% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/9. 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 8/196:00 amPWM - SJO
1 stop8h 10mDelta
Fri 9/51:35 pmSJO - PWM
1 stop8h 28mDelta
Deal found 6/9$296
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/216:00 amPWM - SJO
2 stops9h 15mAmerican Airlines
Thu 9/46:00 amSJO - PWM
2 stops16h 09mAmerican Airlines
Deal found 6/9$329
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:05 pmPWM - SJO
1 stop18h 24mMultiple Airlines
Tue 8/191:41 pmSJO - PWM
1 stop20h 12mMultiple Airlines
Deal found 6/11$425
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/196:00 amPWM - SJO
1 stop7h 38mUnited Airlines
Fri 9/51:30 pmSJO - PWM
2 stops21h 52mUnited Airlines
Deal found 6/9$438
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:10 pmPWM - LIR
2 stops20h 39mAmerican Airlines
Sun 10/1212:55 pmLIR - PWM
2 stops20h 26mAmerican Airlines
Deal found 6/10$538
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 12/314:48 pmPWM - LIR
2 stops21h 20mUnited Airlines
Tue 4/281:20 pmLIR - PWM
2 stops22h 18mUnited Airlines
Deal found 6/10$609
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:00 amPWM - LIR
1 stop8h 00mDelta
Sun 7/131:25 pmLIR - PWM
1 stop9h 13mDelta
Deal found 6/12$652
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:59 amPWM - SJO
2 stops23h 41mAvianca
Mon 10/201:55 amSJO - PWM
2 stops15h 46mAvianca
Deal found 6/10$2,474
This WestJet 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/85:00 pmPWM - LIR
2 stops21h 24mWestJet
Sun 7/131:25 pmLIR - PWM
2 stops24h 46mWestJet
Deal found 6/12$3,574

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 12, 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

Tue 8/19

6:00 am-12:10 pm

1 stop8h 10m

San José Juan Santamaria Intl

Thu 9/4

1:35 pm-12:03 am

1 stop8h 28m

$296

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 8/21

6:00 am-1:15 pm

2 stops9h 15m

San José Juan Santamaria Intl

Thu 9/4

6:00 am-12:09 am

2 stops16h 09m

$329

PortlandSan José

PWM - SJO

PWMSJO

Portland

Mon 8/11

6:05 pm-10:29 am

1 stop18h 24m

San José Juan Santamaria Intl

Tue 8/19

1:41 pm-11:53 am

1 stop20h 12m

$425

PortlandSan José

PWM - SJO

PWMSJO

Portland

Tue 8/19

6:00 am-11:38 am

1 stop7h 38m

San José Juan Santamaria Intl

Fri 9/5

1:30 pm-1:22 pm

2 stops21h 52m

$438

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 10/4

5:10 pm-11:49 am

2 stops20h 39m

Liberia

Sun 10/12

12:55 pm-11:21 am

2 stops20h 26m

$538

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Mon 7/7

4:56 pm-2:23 pm

2 stops23h 27m

Liberia

Sat 7/12

3:25 pm-2:24 pm

2 stops20h 59m

$629

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Tue 7/8

6:00 am-12:00 pm

1 stop8h 00m

Liberia

Sun 7/13

1:25 pm-12:38 am

1 stop9h 13m

$652

PortlandSan José

PWM - SJO

PWMSJO

Portland

Tue 10/14

9:59 am-7:40 am

2 stops23h 41m

San José Juan Santamaria Intl

Mon 10/20

1:55 am-7:41 pm

2 stops15h 46m

$2,474

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Tue 7/8

5:00 pm-12:24 pm

2 stops21h 24m

Liberia

Sun 7/13

1:25 pm-4:11 pm

2 stops24h 46m

$3,574

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 8/1

6:20 pm-10:11 am

2 stops17h 51m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 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 June 12, 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.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 12, 2025.
Read through reviews of airlines operating flights from Portland to Costa Rica, such as Delta, United Airlines and American Airlines. 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
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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!
Avianca
6.7
Okay
2,345 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

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?

    $211 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $253 and $272, 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$425Average$764FlexibilityNo cancel feeOn-time71%
DeltaCheapest$521Average$785FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$528Average$790FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$584Average$1,120FlexibilityNo cancel feeOn-time63%

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