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Cheap flights from Portland, Maine to Costa Rica from $175

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 8/13. 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
3:00 pm - 1:05 pm
PWM
-
SJO
23h 05m
2 stops
Delta Logo
7:00 am - 11:06 pm
SJO
-
PWM
15h 06m
2 stops
$399Delta
Thu, Nov 26 - Wed, Dec 2
American Airlines Logo
7:20 pm - 1:00 pm
PWM
-
SJO
19h 40m
2 stops
American Airlines Logo
12:57 pm - 11:33 am
SJO
-
PWM
20h 36m
2 stops
$431American Airlines
Fri, Oct 9 - Sat, Oct 17
Delta Logo
1:35 pm - 10:15 pm
PWM
-
SJO
9h 40m
1 stop
Delta Logo
7:00 am - 10:23 pm
SJO
-
PWM
14h 23m
1 stop
$448Delta
Tue, Nov 24 - Wed, Dec 2
Delta Logo
1:35 pm - 10:15 pm
PWM
-
SJO
9h 40m
1 stop
Delta Logo
7:00 am - 9:30 am
SJO
-
PWM
25h 30m
2 stops
$453Delta
Tue, Nov 24 - Thu, Dec 3
American Airlines Logo
6:46 pm - 11:29 am
PWM
-
LIR
18h 43m
2 stops
American Airlines Logo
2:15 pm - 6:52 pm
LIR
-
PWM
26h 37m
1 stop
$462American Airlines
Thu, Aug 13 - Fri, Aug 28
American Airlines Logo
7:20 pm - 11:05 am
PWM
-
SJO
17h 45m
2 stops
American Airlines Logo
1:05 pm - 1:22 pm
SJO
-
PWM
22h 17m
2 stops
$463American Airlines
Fri, Oct 9 - Sat, Oct 17
American Airlines Logo
6:09 pm - 1:38 pm
PWM
-
LIR
21h 29m
2 stops
American Airlines Logo
2:15 pm - 6:52 pm
LIR
-
PWM
26h 37m
1 stop
$467American Airlines
Wed, Aug 12 - Fri, Aug 28
United Airlines Logo
6:00 am - 11:38 am
PWM
-
SJO
7h 38m
1 stop
United Airlines Logo
12:44 pm - 9:08 am
SJO
-
PWM
18h 24m
1 stop
$482United Airlines
Fri, Oct 9 - Sat, Oct 17
United Airlines Logo
6:00 am - 11:38 am
PWM
-
SJO
7h 38m
1 stop
United Airlines Logo
7:55 am - 11:28 pm
SJO
-
PWM
13h 33m
2 stops
$487United Airlines
Fri, Oct 9 - Sat, Oct 17
JetBlue Logo
6:00 am - 12:40 pm
PWM
-
LIR
8h 40m
1 stop
JetBlue Logo
2:06 pm - 1:45 pm
LIR
-
PWM
21h 39m
2 stops
$508JetBlue
Fri, Aug 14 - Wed, Aug 26

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American Airlines flights from Portland, Maine to Costa Rica

Our best American Airlines deals on Portland, Maine to Costa Rica flight tickets
American Airlines
Oct 9
PWM7:20 pmPortland
19h 40m
2 stops
SJO1:00 pmSan José Juan Santamaria Intl
Oct 17
SJO12:57 pmSan José Juan Santamaria Intl
20h 36m
2 stops
PWM11:33 amPortland
$431
American Airlines
Aug 13
PWM6:46 pmPortland
18h 43m
2 stops
LIR11:29 amLiberia
Aug 28
LIR2:15 pmLiberia
26h 37m
1 stop
PWM6:52 pmPortland
$462
American Airlines
Oct 9
PWM7:20 pmPortland
17h 45m
2 stops
SJO11:05 amSan José Juan Santamaria Intl
Oct 17
SJO1:05 pmSan José Juan Santamaria Intl
22h 17m
2 stops
PWM1:22 pmPortland
$463

United Airlines flights from Portland, Maine to Costa Rica

Our best United Airlines deals on Portland, Maine to Costa Rica flight tickets
United Airlines
Oct 9
PWM6:00 amPortland
7h 38m
1 stop
SJO11:38 amSan José Juan Santamaria Intl
Oct 17
SJO12:44 pmSan José Juan Santamaria Intl
18h 24m
1 stop
PWM9:08 amPortland
$482
United Airlines
Oct 9
PWM6:00 amPortland
7h 38m
1 stop
SJO11:38 amSan José Juan Santamaria Intl
Oct 17
SJO7:55 amSan José Juan Santamaria Intl
13h 33m
2 stops
PWM11:28 pmPortland
$487
United Airlines
Aug 12
PWM6:03 amPortland
32h 07m
2 stops
LIR12:10 pmLiberia
Aug 28
LIR1:20 pmLiberia
23h 14m
2 stops
PWM2:34 pmPortland
$552

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 June 23, 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

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 11/26

3:00 pm-1:05 pm

2 stops23h 05m

San José Juan Santamaria Intl

Wed 12/2

7:00 am-11:06 pm

2 stops15h 06m

$399

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 10/9

7:20 pm-1:00 pm

2 stops19h 40m

San José Juan Santamaria Intl

Sat 10/17

12:57 pm-11:33 am

2 stops20h 36m

$431

PortlandSan José

PWM - SJO

PWMSJO

Portland

Tue 11/24

1:35 pm-10:15 pm

1 stop9h 40m

San José Juan Santamaria Intl

Wed 12/2

7:00 am-10:23 pm

1 stop14h 23m

$448

PortlandSan José

PWM - SJO

PWMSJO

Portland

Tue 11/24

1:35 pm-10:15 pm

1 stop9h 40m

San José Juan Santamaria Intl

Thu 12/3

7:00 am-9:30 am

2 stops25h 30m

$453

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Thu 8/13

6:46 pm-11:29 am

2 stops18h 43m

Liberia

Fri 8/28

2:15 pm-6:52 pm

1 stop26h 37m

$462

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 10/9

7:20 pm-11:05 am

2 stops17h 45m

San José Juan Santamaria Intl

Sat 10/17

1:05 pm-1:22 pm

2 stops22h 17m

$463

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Wed 8/12

6:09 pm-1:38 pm

2 stops21h 29m

Liberia

Fri 8/28

2:15 pm-6:52 pm

1 stop26h 37m

$467

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 10/9

6:00 am-11:38 am

1 stop7h 38m

San José Juan Santamaria Intl

Sat 10/17

12:44 pm-9:08 am

1 stop18h 24m

$482
Quickest round-trip

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 10/9

6:00 am-11:38 am

1 stop7h 38m

San José Juan Santamaria Intl

Sat 10/17

7:55 am-11:28 pm

2 stops13h 33m

$487

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Fri 8/14

6:00 am-12:40 pm

1 stop8h 40m

Liberia

Wed 8/26

2:06 pm-1:45 pm

2 stops21h 39m

$508

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Costa Rica from

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 $136, 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 March is your next best option. Flight prices from Portland, Maine to Costa Rica during March average around $145.

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

You could potentially save up to 3% 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.
Search flight deals

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
JetBluePriceFrom $236Free CancellationRating
7.1
3,001 reviews
Search JetBlue flights
United AirlinesPriceFrom $251Free CancellationRating
7.4
9,878 reviews
Search United Airlines flights
American AirlinesPriceFrom $274Free CancellationRating
7.1
11,746 reviews
Search American Airlines flights
DeltaPriceFrom $299Free CancellationRating
7.8
8,424 reviews
Search Delta flights
SouthwestPriceFrom $577Free CancellationRating
7.9
4,242 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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