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$321+ Cheap flights from Costa Rica to Portland, ME (PWM)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — PWM
Mar 17 — Mar 241
Tue 3/17
Tue 3/24
1 adult, Economy
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Cheap flight deals from Costa Rica to Portland

Cheapest flights from Costa Rica to Portland
Explore the most affordable flight options available from Costa Rica to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 15, 2026.

This United Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 10/231:20 pm
LIR
-
PWM
2 stops22h 32m
United Airlines
Tue 10/277:22 pm
PWM
-
LIR
2 stops24h 15m
United Airlines
Deal found 2/12$336

Find flight deals from Costa Rica to Portland

Keep the following information in mind while searching for Costa Rica to Portland flight deals. Data was last updated February 15, 2026.

Popular in

April

Cheapest in

January

Average price

$407
Highest demand for flights based on searches. 21% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Costa Rica to Portland 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 February 15, 2026.
Use the filters below to find and compare flights from Costa Rica to Portland that are best for you.

Fly from

Costa Rica

Fly to

Portland

Route

Depart

Return

Price

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Mon 2/23

2:20 pm-3:14 pm

2 stops23h 54m

$321

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Mon 2/23

2:32 pm-5:07 pm

1 stop25h 35m

$341

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Fri 2/20

8:35 am-11:20 pm

2 stops13h 45m

$428

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Sun 2/22

2:01 pm-2:23 pm

2 stops47h 22m

$538

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Sat 4/25

12:37 pm-10:07 am

2 stops19h 30m

$547

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Sun 2/22

1:23 pm-10:50 pm

1 stop32h 27m

$617

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Fri 2/20

2:32 pm-5:27 pm

1 stop25h 55m

$644

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Mon 2/23

6:40 pm-10:17 am

3 stops38h 37m

$685

LiberiaPortland

LIR - PWM

LIRPWM

Liberia

Sun 2/22

1:00 pm-9:07 am

3 stops19h 07m

$694

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Best time to book a flight from Costa Rica to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Costa Rica 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 Costa Rica to Portland

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

Currently, April is the cheapest month in which you can book a flight from Costa Rica to Portland, Maine (average of $132). Flying from Costa Rica to Portland, Maine in August is currently the most expensive (average of $300). 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.

Related info for your journey

Find useful and relevant information for your journey from Costa Rica to Portland. 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 into for flights to Portland from Costa Rica?

    Portland (PWM) is the airport you will fly into if you book a flight from Costa Rica to Portland. It is only a 2.9 mi journey from Portland (PWM) to Portland’s city center.

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

    The cheapest airlines for a one-way flight from Costa Rica to Portland, Maine are United Airlines ($145), American Airlines ($146), and Delta ($195).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Costa Rica to Portland 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 Costa Rica to Portland, Maine?

    Currently, April is the cheapest month in which you can book a flight from Costa Rica to Portland, Maine (average of $132). Flying from Costa Rica to Portland, Maine in August is currently the most expensive (average of $300). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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