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Cheap flights from Portland, Maine to Costa Rica from $139

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 5/5. 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
0 bags

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Find the cheapest flights from Portland, Maine to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:11 pm - 11:28 am
PWM
-
LIR
20h 17m
2 stops
American Airlines Logo
2:40 pm - 11:15 am
LIR
-
PWM
18h 35m
2 stops
$381American Airlines
mar, apr 7 - mar, apr 14
American Airlines Logo
7:23 pm - 11:35 am
PWM
-
SJO
18h 12m
2 stops
American Airlines Logo
2:22 pm - 12:38 pm
SJO
-
PWM
20h 16m
2 stops
$386American Airlines
lun, apr 27 - lun, mag 4
American Airlines Logo
7:23 pm - 11:35 am
PWM
-
SJO
18h 12m
2 stops
American Airlines Logo
2:31 pm - 11:15 am
SJO
-
PWM
18h 44m
2 stops
$387American Airlines
lun, mag 4 - ven, mag 8
American Airlines Logo
1:18 pm - 11:25 am
PWM
-
SJO
24h 07m
1 stop
American Airlines Logo
2:22 pm - 11:15 am
SJO
-
PWM
18h 53m
2 stops
$393American Airlines
mar, apr 28 - mer, mag 6
GOL Logo
6:01 pm - 11:25 am
PWM
-
SJO
19h 24m
2 stops
GOL Logo
12:56 pm - 11:46 am
SJO
-
PWM
20h 50m
2 stops
$394GOL
gio, mag 14 - sab, mag 23
GOL Logo
7:23 pm - 11:07 am
PWM
-
SJO
17h 44m
2 stops
GOL Logo
1:59 pm - 5:07 pm
SJO
-
PWM
25h 08m
1 stop
$403GOL
gio, mag 14 - sab, mag 23
United Airlines Logo
4:50 pm - 11:55 am
PWM
-
SJO
21h 05m
1 stop
United Airlines Logo
12:44 pm - 11:23 pm
SJO
-
PWM
8h 39m
1 stop
$413United Airlines
ven, mag 1 - ven, mag 8
JetBlue Logo
6:00 am - 12:40 pm
PWM
-
LIR
8h 40m
1 stop
JetBlue Logo
2:00 pm - 1:24 pm
LIR
-
PWM
21h 24m
1 stop
$441JetBlue
lun, mag 4 - mer, giu 3
United Airlines Logo
6:33 pm - 12:10 pm
PWM
-
LIR
19h 37m
2 stops
United Airlines Logo
3:27 pm - 9:40 pm
LIR
-
PWM
28h 13m
2 stops
$491United Airlines
lun, apr 20 - lun, apr 27
Avianca Logo
7:12 pm - 10:44 am
PWM
-
LIR
17h 32m
1 stop
Avianca Logo
3:27 pm - 9:40 pm
LIR
-
PWM
28h 13m
2 stops
$506Avianca
lun, apr 20 - lun, apr 27

American Airlines flights from Portland, Maine to Costa Rica

Our best American Airlines deals on Portland, Maine to Costa Rica flight tickets
American Airlines
Apr 7
PWM5:11 pmPortland
20h 17m
2 stops
LIR11:28 amLiberia
Apr 14
LIR2:40 pmLiberia
18h 35m
2 stops
PWM11:15 amPortland
$381
American Airlines
Apr 27
PWM7:23 pmPortland
18h 12m
2 stops
SJO11:35 amSan José Juan Santamaria Intl
May 4
SJO2:22 pmSan José Juan Santamaria Intl
20h 16m
2 stops
PWM12:38 pmPortland
$386
American Airlines
May 4
PWM7:23 pmPortland
18h 12m
2 stops
SJO11:35 amSan José Juan Santamaria Intl
May 8
SJO2:31 pmSan José Juan Santamaria Intl
18h 44m
2 stops
PWM11:15 amPortland
$387

GOL flights from Portland, Maine to Costa Rica

Our best GOL deals on Portland, Maine to Costa Rica flight tickets
GOL
May 14
PWM6:01 pmPortland
19h 24m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
May 23
SJO12:56 pmSan José Juan Santamaria Intl
20h 50m
2 stops
PWM11:46 amPortland
$394
GOL
May 14
PWM7:23 pmPortland
17h 44m
2 stops
SJO11:07 amSan José Juan Santamaria Intl
May 23
SJO1:59 pmSan José Juan Santamaria Intl
25h 08m
1 stop
PWM5:07 pmPortland
$403
GOL
Apr 30
PWM6:01 pmPortland
21h 21m
2 stops
SJO1:22 pmSan José Juan Santamaria Intl
May 8
SJO11:35 pmSan José Juan Santamaria Intl
17h 23m
2 stops
PWM6:58 pmPortland
$476

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 marzo 22, 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

PortlandLiberia

PWM - LIR

PWMLIR

Portland

mar 4/7

5:11 pm-11:28 am

2 stops20h 17m

Liberia

mar 4/14

2:40 pm-11:15 am

2 stops18h 35m

$381

PortlandSan José

PWM - SJO

PWMSJO

Portland

lun 4/27

7:23 pm-11:35 am

2 stops18h 12m

San José Juan Santamaria Intl

lun 5/4

2:22 pm-12:38 pm

2 stops20h 16m

$386

PortlandSan José

PWM - SJO

PWMSJO

Portland

lun 5/4

7:23 pm-11:35 am

2 stops18h 12m

San José Juan Santamaria Intl

ven 5/8

2:31 pm-11:15 am

2 stops18h 44m

$387

PortlandSan José

PWM - SJO

PWMSJO

Portland

mar 4/28

1:18 pm-11:25 am

1 stop24h 07m

San José Juan Santamaria Intl

mer 5/6

2:22 pm-11:15 am

2 stops18h 53m

$393

PortlandSan José

PWM - SJO

PWMSJO

Portland

gio 5/14

6:01 pm-11:25 am

2 stops19h 24m

San José Juan Santamaria Intl

sab 5/23

12:56 pm-11:46 am

2 stops20h 50m

$394

PortlandSan José

PWM - SJO

PWMSJO

Portland

gio 5/14

7:23 pm-11:07 am

2 stops17h 44m

San José Juan Santamaria Intl

sab 5/23

1:59 pm-5:07 pm

1 stop25h 08m

$403
Quickest round-trip

PortlandSan José

PWM - SJO

PWMSJO

Portland

ven 5/1

4:50 pm-11:55 am

1 stop21h 05m

San José Juan Santamaria Intl

ven 5/8

12:44 pm-11:23 pm

1 stop8h 39m

$413

PortlandLiberia

PWM - LIR

PWMLIR

Portland

lun 5/4

6:00 am-12:40 pm

1 stop8h 40m

Liberia

mer 6/3

2:00 pm-1:24 pm

1 stop21h 24m

$441

PortlandLiberia

PWM - LIR

PWMLIR

Portland

lun 4/20

6:33 pm-12:10 pm

2 stops19h 37m

Liberia

lun 4/27

3:27 pm-9:40 pm

2 stops28h 13m

$491

PortlandLiberia

PWM - LIR

PWMLIR

Portland

lun 4/20

7:12 pm-10:44 am

1 stop17h 32m

Liberia

lun 4/27

3:27 pm-9:40 pm

2 stops28h 13m

$506

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 January. Flight prices, which tend to average around $362, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in January, then July is your next best option. Flight prices from Portland, Maine to Costa Rica during July average around $381.

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

You could potentially save up to 42% 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 55m

Direct flights

None
The fastest flight from Portland, Maine to Costa Rica takes 7h 55m
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

  • 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 $140Free CancellationRating
7.9
8,314 reviews
Search Delta flights
JetBluePriceFrom $236Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
American AirlinesPriceFrom $274Free CancellationRating
7.1
11,487 reviews
Search American Airlines flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
9,455 reviews
Search United Airlines flights
SouthwestPriceFrom $577Free CancellationRating
8.0
4,324 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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mar 4/21
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