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Cheap flights from Portland, Maine to Costa Rica from $187

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Costa Rica departing on 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:15 pm - 10:15 pmPWM  Portland-SJO San José Juan Santamaria Intl
9h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 10:23 pmSJO  San José Juan Santamaria Intl-PWM Portland
14h 23m1 stop Atlanta Hartsfield-Jackson
$412Delta
Thu, Nov 26 - Sat, Dec 5
American Airlines Logo
5:08 pm - 12:21 pmPWM  Portland-LIR Liberia
20h 13m2 stops Washington, D.C. Reagan-National Charlotte Douglas
American Airlines Logo
1:28 pm - 12:12 pmLIR  Liberia-PWM Portland
21h 44m2 stops Dallas/Fort Worth Philadelphia
$423American Airlines
Mon, Feb 1 - Mon, Mar 1
American Airlines Logo
3:56 pm - 2:13 pmPWM  Portland-LIR Liberia
23h 17m2 stops Philadelphia Miami
American Airlines Logo
1:33 pm - 12:05 pmLIR  Liberia-PWM Portland
21h 32m2 stops Miami Philadelphia
$423American Airlines
Fri, Jan 29 - Tue, Feb 2
Delta Logo
2:15 pm - 10:15 pmPWM  Portland-SJO San José Juan Santamaria Intl
9h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 10:23 pmSJO  San José Juan Santamaria Intl-PWM Portland
14h 23m1 stop Atlanta Hartsfield-Jackson
$433Delta
Thu, Nov 26 - Sat, Dec 5
Delta Logo
2:15 pm - 10:15 pmPWM  Portland-SJO San José Juan Santamaria Intl
9h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:30 pm - 12:08 pmSJO  San José Juan Santamaria Intl-PWM Portland
20h 38m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County
$438Delta
Thu, Nov 26 - Sat, Dec 5
United Airlines Logo
5:50 am - 6:37 pmPWM  Portland-LIR Liberia
13h 47m2 stops Newark Houston George Bush Intcntl
United Airlines Logo
5:20 pm - 2:16 pmLIR  Liberia-PWM Portland
19h 56m2 stops Newark Chicago O'Hare Intl
$473United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
5:50 am - 6:37 pmPWM  Portland-LIR Liberia
13h 47m2 stops Newark Houston George Bush Intcntl
United Airlines Logo
5:20 pm - 9:00 amLIR  Liberia-PWM Portland
14h 40m1 stop Newark
$473United Airlines
Sun, Nov 15 - Wed, Nov 18
Multiple Airlines Logo
6:00 am - 1:05 pmPWM  Portland-SJO San José Juan Santamaria Intl
33h 05m2 stops New York John F Kennedy Intl Guayaquil Jose Joaquin de Olmedo
Multiple Airlines Logo
5:00 pm - 11:54 pmSJO  San José Juan Santamaria Intl-PWM Portland
52h 54m2 stops Guayaquil Jose Joaquin de Olmedo New York John F Kennedy Intl
$503Multiple Airlines
Sat, Sep 12 - Sat, Sep 26
Multiple Airlines Logo
6:00 am - 11:45 amPWM  Portland-SJO San José Juan Santamaria Intl
31h 45m3 stops New York John F Kennedy Intl San Salvador El Salvador Intl Panama City Tocumen Intl
Multiple Airlines Logo
5:00 pm - 11:54 pmSJO  San José Juan Santamaria Intl-PWM Portland
52h 54m2 stops Guayaquil Jose Joaquin de Olmedo New York John F Kennedy Intl
$506Multiple Airlines
Sat, Sep 12 - Sat, Sep 26
Southwest Logo
5:55 am - 6:45 pmPWM  Portland-SJO San José Juan Santamaria Intl
14h 50m2 stops Baltimore/Washington Houston Hobby
Southwest Logo
9:00 am - 10:30 pmSJO  San José Juan Santamaria Intl-PWM Portland
11h 30m2 stops Orlando Baltimore/Washington
$522Southwest
Fri, Sep 18 - Fri, Sep 25

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United Airlines flights from Portland, Maine to Costa Rica

Our best United Airlines deals on Portland, Maine to Costa Rica flight tickets
United Airlines
Nov 15
PWM5:50 amPortland
13h 47m
2 stops
LIR6:37 pmLiberia
Nov 18
LIR5:20 pmLiberia
19h 56m
2 stops
PWM2:16 pmPortland
$473
United Airlines
Nov 15
PWM5:50 amPortland
30h 54m
1 stop
LIR11:44 amLiberia
Nov 18
LIR5:20 pmLiberia
14h 40m
1 stop
PWM9:00 amPortland
$475
United Airlines
Sep 12
PWM6:53 pmPortland
19h 17m
2 stops
LIR12:10 pmLiberia
Sep 26
LIR4:30 pmLiberia
14h 38m
1 stop
PWM9:08 amPortland
$482

American Airlines flights from Portland, Maine to Costa Rica

Our best American Airlines deals on Portland, Maine to Costa Rica flight tickets
American Airlines
Feb 1
PWM5:08 pmPortland
20h 13m
2 stops
LIR12:21 pmLiberia
Mar 1
LIR1:28 pmLiberia
21h 44m
2 stops
PWM12:12 pmPortland
$423
American Airlines
Feb 1
PWM5:08 pmPortland
20h 13m
2 stops
LIR12:21 pmLiberia
Mar 1
LIR1:28 pmLiberia
21h 44m
2 stops
PWM12:12 pmPortland
$443
American Airlines
Feb 1
PWM7:00 amPortland
30h 21m
1 stop
LIR12:21 pmLiberia
Mar 1
LIR1:28 pmLiberia
21h 44m
2 stops
PWM12:12 pmPortland
$483

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine 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, momondo users made 832,500 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Portland, Maine to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Thu 11/26

2:15 pm-10:15 pm

1 stop9h 00m

San José Juan Santamaria Intl

Sat 12/5

7:00 am-10:23 pm

1 stop14h 23m

$412

PortlandLiberia

PWM Portland - LIR Liberia

PWMLIR

Portland

Mon 2/1

5:08 pm-12:21 pm

2 stops20h 13m

Liberia

Mon 3/1

1:28 pm-12:12 pm

2 stops21h 44m

$423

PortlandLiberia

PWM Portland - LIR Liberia

PWMLIR

Portland

Fri 1/29

3:56 pm-2:13 pm

2 stops23h 17m

Liberia

Tue 2/2

1:33 pm-12:05 pm

2 stops21h 32m

$423

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Thu 11/26

2:15 pm-10:15 pm

1 stop9h 00m

San José Juan Santamaria Intl

Sat 12/5

7:00 am-10:23 pm

1 stop14h 23m

$433

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Thu 11/26

2:15 pm-10:15 pm

1 stop9h 00m

San José Juan Santamaria Intl

Sat 12/5

2:30 pm-12:08 pm

2 stops20h 38m

$438

PortlandLiberia

PWM Portland - LIR Liberia

PWMLIR

Portland

Sun 11/15

5:50 am-6:37 pm

2 stops13h 47m

Liberia

Wed 11/18

5:20 pm-2:16 pm

2 stops19h 56m

$473

PortlandLiberia

PWM Portland - LIR Liberia

PWMLIR

Portland

Sun 11/15

5:50 am-6:37 pm

2 stops13h 47m

Liberia

Wed 11/18

5:20 pm-9:00 am

1 stop14h 40m

$473

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Sat 9/12

6:00 am-1:05 pm

2 stops33h 05m

San José Juan Santamaria Intl

Sat 9/26

5:00 pm-11:54 pm

2 stops52h 54m

$503

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Sat 9/12

6:00 am-11:45 am

3 stops31h 45m

San José Juan Santamaria Intl

Sat 9/26

5:00 pm-11:54 pm

2 stops52h 54m

$506

PortlandSan José

PWM Portland - SJO San José Juan Santamaria Intl

PWMSJO

Portland

Fri 9/18

5:55 am-6:45 pm

2 stops14h 50m

San José Juan Santamaria Intl

Fri 9/25

9:00 am-10:30 pm

2 stops11h 30m

$522

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland, Maine to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Portland, Maine is in July. Flight prices, which tend to average around $178, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in July, then January is your next best option. Flight prices from Portland, Maine to Costa Rica during January average around $362.

Can stopping save me money on Portland, Maine to Costa Rica flights?

You could potentially save up to 12% on your flight if you consider stops on a Portland, Maine to Costa Rica flight.

Cheap Portland, Maine to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Costa Rica

Fastest flight time

7h 38m

Direct flights

None
The fastest flight from Portland, Maine to Costa Rica takes 7h 38m
There are no direct flights from Portland, Maine to Costa Rica. There are no popular flight routes from Portland, Maine to Costa Rica.
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Frequently asked questions about flying from Portland, Maine to Costa Rica

  • When did momondo last update prices for flights from Portland Airport to Costa Rica?

    Prices for flights from Portland Airport to Costa Rica are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Costa Rica?

  • How old do you have to be to fly from Portland Airport to Costa Rica?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland, Maine to Costa Rica

Compare and see reviews for airlines that fly from Portland, Maine to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $145Free CancellationRating
7.8
8,504 reviews
Search Delta flights
JetBluePriceFrom $236Free CancellationRating
7.1
3,025 reviews
Search JetBlue flights
United AirlinesPriceFrom $251Free CancellationRating
7.4
10,081 reviews
Search United Airlines flights
American AirlinesPriceFrom $274Free CancellationRating
7.1
11,879 reviews
Search American Airlines flights
SouthwestPriceFrom $577Free CancellationRating
8.0
4,216 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Costa Rica?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Costa Rica from Portland.

Can I find flights from Portland to Costa Rica with flexible booking policies on momondo?

momondo does allow users to show only those flights to Costa Rica from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Costa Rica?

Once all potential Portland to Costa Rica flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Costa Rica right now. Can momondo alert me if prices change?

Price alerts on flights to Costa Rica from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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