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Cheap flights from Portland, Maine to Costa Rica from $106

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 1/27. 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
6:40 pm - 12:33 pm
PWM
-
SJO
18h 53m2 stops
American Airlines Logo
7:09 am - 10:54 pm
SJO
-
PWM
14h 45m2 stops
$258American Airlines
Thu, Jan 1 - Fri, Jan 9
American Airlines Logo
3:58 pm - 2:13 pm
PWM
-
LIR
23h 15m2 stops
American Airlines Logo
3:23 pm - 12:06 pm
LIR
-
PWM
19h 43m2 stops
$285American Airlines
Sun, Jan 18 - Sat, Jan 24
American Airlines Logo
7:00 am - 12:37 pm
PWM
-
LIR
30h 37m1 stop
American Airlines Logo
3:23 pm - 12:06 pm
LIR
-
PWM
19h 43m2 stops
$292American Airlines
Sun, Jan 18 - Sat, Jan 24
American Airlines Logo
6:41 pm - 12:12 pm
PWM
-
LIR
18h 31m2 stops
American Airlines Logo
1:21 pm - 12:05 pm
LIR
-
PWM
21h 44m2 stops
$307American Airlines
Mon, Jan 5 - Mon, Jan 12
American Airlines Logo
7:00 am - 12:37 pm
PWM
-
LIR
30h 37m1 stop
American Airlines Logo
1:28 pm - 12:05 pm
LIR
-
PWM
21h 37m2 stops
$314American Airlines
Sat, Jan 10 - Sat, Jan 17
Delta Logo
5:30 am - 12:50 pm
PWM
-
LIR
8h 20m1 stop
Delta Logo
2:05 pm - 11:06 pm
LIR
-
PWM
8h 01m1 stop
$315Delta
Fri, Feb 6 - Fri, Feb 13
Delta Logo
12:43 pm - 1:24 pm
PWM
-
LIR
25h 41m2 stops
Delta Logo
2:05 pm - 11:06 pm
LIR
-
PWM
8h 01m1 stop
$319Delta
Wed, Feb 4 - Thu, Feb 12
Delta Logo
5:30 am - 12:50 pm
PWM
-
LIR
8h 20m1 stop
Delta Logo
3:05 pm - 11:18 am
LIR
-
PWM
19h 13m2 stops
$324Delta
Fri, Feb 6 - Sat, Feb 14
United Airlines Logo
6:00 am - 6:16 pm
PWM
-
SJO
13h 16m2 stops
United Airlines Logo
6:30 am - 11:30 pm
SJO
-
PWM
16h 00m2 stops
$349United Airlines
Fri, Jan 23 - Wed, Jan 28
United Airlines Logo
4:10 pm - 12:56 pm
PWM
-
SJO
21h 46m1 stop
United Airlines Logo
8:45 am - 2:39 pm
SJO
-
PWM
28h 54m2 stops
$402United Airlines
Thu, Jan 29 - Sun, Feb 8

JetBlue flights from Portland, Maine to Costa Rica

Our best JetBlue deals on Portland, Maine to Costa Rica flight tickets
JetBlue
Apr 20
PWM6:30 amPortland
7h 25m
1 stop
LIR11:55 amLiberia
Apr 22
LIR1:00 pmLiberia
9h 26m
1 stop
PWM12:26 amPortland
$379
Find similar
JetBlue
Apr 21
PWM6:00 amPortland
8h 26m
1 stop
LIR12:26 pmLiberia
Apr 22
LIR1:00 pmLiberia
9h 26m
1 stop
PWM12:26 amPortland
$409
Find similar
JetBlue
Apr 18
PWM6:30 amPortland
7h 25m
1 stop
SJO11:55 amSan José Juan Santamaria Intl
Apr 25
SJO9:00 amSan José Juan Santamaria Intl
13h 26m
1 stop
PWM12:26 amPortland
$475
Find similar

American Airlines flights from Portland, Maine to Costa Rica

Our best American Airlines deals on Portland, Maine to Costa Rica flight tickets
American Airlines
Jan 1
PWM6:40 pmPortland
18h 53m
2 stops
SJO12:33 pmSan José Juan Santamaria Intl
Jan 9
SJO7:09 amSan José Juan Santamaria Intl
14h 45m
2 stops
PWM10:54 pmPortland
$258
Find similar
American Airlines
Jan 18
PWM3:58 pmPortland
23h 15m
2 stops
LIR2:13 pmLiberia
Jan 24
LIR3:23 pmLiberia
19h 43m
2 stops
PWM12:06 pmPortland
$285
Find similar
American Airlines
Jan 18
PWM7:00 amPortland
30h 37m
1 stop
LIR12:37 pmLiberia
Jan 24
LIR3:23 pmLiberia
19h 43m
2 stops
PWM12:06 pmPortland
$292
Find similar

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 December 18, 2025.
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

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 1/1

6:40 pm-12:33 pm

2 stops18h 53m

San José Juan Santamaria Intl

Fri 1/9

7:09 am-10:54 pm

2 stops14h 45m

$258

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sun 1/18

3:58 pm-2:13 pm

2 stops23h 15m

Liberia

Sat 1/24

3:23 pm-12:06 pm

2 stops19h 43m

$285

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sun 1/18

7:00 am-12:37 pm

1 stop30h 37m

Liberia

Sat 1/24

3:23 pm-12:06 pm

2 stops19h 43m

$292

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Mon 1/5

6:41 pm-12:12 pm

2 stops18h 31m

Liberia

Mon 1/12

1:21 pm-12:05 pm

2 stops21h 44m

$307

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 1/10

7:00 am-12:37 pm

1 stop30h 37m

Liberia

Sat 1/17

1:28 pm-12:05 pm

2 stops21h 37m

$314

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Fri 2/6

5:30 am-12:50 pm

1 stop8h 20m

Liberia

Fri 2/13

2:05 pm-11:06 pm

1 stop8h 01m

$315

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Wed 2/4

12:43 pm-1:24 pm

2 stops25h 41m

Liberia

Thu 2/12

2:05 pm-11:06 pm

1 stop8h 01m

$319

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Fri 2/6

5:30 am-12:50 pm

1 stop8h 20m

Liberia

Sat 2/14

3:05 pm-11:18 am

2 stops19h 13m

$324

PortlandSan José

PWM - SJO

PWMSJO

Portland

Fri 1/23

6:00 am-6:16 pm

2 stops13h 16m

San José Juan Santamaria Intl

Wed 1/28

6:30 am-11:30 pm

2 stops16h 00m

$349

PortlandSan José

PWM - SJO

PWMSJO

Portland

Thu 1/29

4:10 pm-12:56 pm

1 stop21h 46m

San José Juan Santamaria Intl

Sun 2/8

8:45 am-2:39 pm

2 stops28h 54m

$402

Flights are sorted by cheapest round-trip flights 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 $371, 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 September is your next best option. Flight prices from Portland, Maine to Costa Rica during September average around $431.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Thursday is the cheapest day to fly to Costa Rica from Portland, Maine. The lowest ticket price found for a Thursday departure recently was $595. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $940. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

What is the cheapest time of day to depart on your flight to Costa Rica?

In the afternoon is the cheapest time of day to fly from Portland, Maine to Costa Rica when you can find flight prices for as low as $397. Flying to Costa Rica in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $861. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 11% 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 25m

Direct flights

None
The fastest flight from Portland, Maine to Costa Rica takes 7h 25m
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
JetBluePriceFrom $236Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
DeltaPriceFrom $299Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $320Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $468Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
SouthwestPriceFrom $551Free CancellationRating
7.9
4,251 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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