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Cheap flights from Philadelphia to Costa Rica from $168

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Costa Rica departing on 8/23. 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 Philadelphia to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
6:00 am - 1:01 pm
PHL
-
LIR
9h 01m
1 stop
JetBlue Logo
1:05 pm - 11:07 pm
LIR
-
PHL
8h 02m
1 stop
$378JetBlue
Tue, Sep 8 - Fri, Sep 11
American Airlines Logo
9:22 pm - 1:50 pm
PHL
-
LIR
17h 28m
2 stops
American Airlines Logo
1:21 pm - 11:46 pm
LIR
-
PHL
9h 25m
1 stop
$387American Airlines
Sun, Dec 13 - Mon, Dec 21
American Airlines Logo
9:22 pm - 1:50 pm
PHL
-
LIR
17h 28m
2 stops
American Airlines Logo
3:28 pm - 9:25 am
LIR
-
PHL
16h 57m
1 stop
$392American Airlines
Wed, Dec 9 - Tue, Dec 15
American Airlines Logo
6:16 am - 1:39 pm
PHL
-
SJO
8h 23m
2 stops
American Airlines Logo
1:09 pm - 11:10 pm
SJO
-
PHL
9h 01m
1 stop
$399American Airlines
Tue, Nov 3 - Wed, Nov 11
Air Canada Logo
9:15 am - 2:10 pm
PHL
-
LIR
29h 55m
1 stop
Air Canada Logo
3:20 pm - 2:44 pm
LIR
-
PHL
22h 24m
1 stop
$401Air Canada
Thu, Nov 12 - Thu, Nov 19
United Airlines Logo
6:16 am - 12:21 pm
PHL
-
SJO
8h 05m
1 stop
United Airlines Logo
7:55 am - 10:31 pm
SJO
-
PHL
12h 36m
1 stop
$404United Airlines
Fri, Aug 21 - Fri, Sep 11
Air Canada Logo
3:20 pm - 2:20 pm
PHL
-
LIR
24h 00m
1 stop
Air Canada Logo
3:20 pm - 2:44 pm
LIR
-
PHL
22h 24m
1 stop
$404Air Canada
Wed, Nov 4 - Tue, Nov 10
Air Canada Logo
3:20 pm - 2:10 pm
PHL
-
LIR
23h 50m
2 stops
Air Canada Logo
3:20 pm - 2:44 pm
LIR
-
PHL
22h 24m
1 stop
$406Air Canada
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
6:25 am - 6:40 pm
PHL
-
SJO
14h 15m
2 stops
Southwest Logo
9:00 am - 10:00 pm
SJO
-
PHL
11h 00m
2 stops
$408Southwest
Tue, Sep 1 - Fri, Sep 4
United Airlines Logo
8:20 am - 7:37 pm
PHL
-
SJO
13h 17m
2 stops
United Airlines Logo
7:55 am - 10:31 pm
SJO
-
PHL
12h 36m
1 stop
$409United Airlines
Fri, Aug 21 - Fri, Sep 11

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American Airlines flights from Philadelphia to Costa Rica

Our best American Airlines deals on Philadelphia to Costa Rica flight tickets
American Airlines
Dec 13
PHL9:22 pmPhiladelphia
17h 28m
2 stops
LIR1:50 pmLiberia
Dec 21
LIR1:21 pmLiberia
9h 25m
1 stop
PHL11:46 pmPhiladelphia
$387
American Airlines
Dec 9
PHL9:22 pmPhiladelphia
17h 28m
2 stops
LIR1:50 pmLiberia
Dec 15
LIR3:28 pmLiberia
16h 57m
1 stop
PHL9:25 amPhiladelphia
$392
American Airlines
Nov 3
PHL6:16 amPhiladelphia
8h 23m
2 stops
SJO1:39 pmSan José Juan Santamaria Intl
Nov 11
SJO1:09 pmSan José Juan Santamaria Intl
9h 01m
1 stop
PHL11:10 pmPhiladelphia
$399

Frontier flights from Philadelphia to Costa Rica

Our best Frontier deals on Philadelphia to Costa Rica flight tickets
Frontier
Aug 1
PHL9:16 pmPhiladelphia
13h 04m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Aug 6
SJO9:35 amSan José Juan Santamaria Intl
13h 18m
1 stop
PHL12:53 amPhiladelphia
$489
Frontier
Jul 8
PHL5:00 pmPhiladelphia
17h 20m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 30
SJO9:35 amSan José Juan Santamaria Intl
11h 20m
1 stop
PHL10:55 pmPhiladelphia
$538
Frontier
Jul 8
PHL5:00 pmPhiladelphia
17h 20m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 30
SJO9:35 amSan José Juan Santamaria Intl
11h 20m
1 stop
PHL10:55 pmPhiladelphia
$558

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 28, 2026.
Use the filters below to find and compare flights from Philadelphia to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Tue 9/8

6:00 am-1:01 pm

1 stop9h 01m

Liberia

Fri 9/11

1:05 pm-11:07 pm

1 stop8h 02m

$378

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sun 12/13

9:22 pm-1:50 pm

2 stops17h 28m

Liberia

Mon 12/21

1:21 pm-11:46 pm

1 stop9h 25m

$387

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 12/9

9:22 pm-1:50 pm

2 stops17h 28m

Liberia

Tue 12/15

3:28 pm-9:25 am

1 stop16h 57m

$392

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Tue 11/3

6:16 am-1:39 pm

2 stops8h 23m

San José Juan Santamaria Intl

Wed 11/11

1:09 pm-11:10 pm

1 stop9h 01m

$399

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Thu 11/12

9:15 am-2:10 pm

1 stop29h 55m

Liberia

Thu 11/19

3:20 pm-2:44 pm

1 stop22h 24m

$401

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Fri 8/21

6:16 am-12:21 pm

1 stop8h 05m

San José Juan Santamaria Intl

Fri 9/11

7:55 am-10:31 pm

1 stop12h 36m

$404

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 11/4

3:20 pm-2:20 pm

1 stop24h 00m

Liberia

Tue 11/10

3:20 pm-2:44 pm

1 stop22h 24m

$404

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Thu 11/12

3:20 pm-2:10 pm

2 stops23h 50m

Liberia

Thu 11/19

3:20 pm-2:44 pm

1 stop22h 24m

$406

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Tue 9/1

6:25 am-6:40 pm

2 stops14h 15m

San José Juan Santamaria Intl

Fri 9/4

9:00 am-10:00 pm

2 stops11h 00m

$408

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Fri 8/21

8:20 am-7:37 pm

2 stops13h 17m

San José Juan Santamaria Intl

Fri 9/11

7:55 am-10:31 pm

1 stop12h 36m

$409

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 Philadelphia 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 Philadelphia is in February. Flight prices, which tend to average around $104, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in February, then April is your next best option. Flight prices from Philadelphia to Costa Rica during April average around $119.

What is the cheapest Philadelphia to Costa Rica flight route?

Fly from Philadelphia to Liberia for the best Philadelphia - Costa Rica flight prices

How far in advance should I book a flight from Philadelphia to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $499 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Philadelphia for as low as $346 on momondo.

What cabin class options are available on Philadelphia to Costa Rica flights?

There is only 1 cabin class available to choose from on Philadelphia to Costa Rica flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Costa Rica flights?

You could potentially save up to 7% on your flight if you consider stops on a Philadelphia to Costa Rica flight.

Cheap Philadelphia to Costa Rica flight deals and tips

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

Best Price Found

$725

Fastest flight time

6h 56m

Direct flights

Sun

Airports in Costa Rica

40 airports
The best flight deal from Philadelphia to Costa Rica found on momondo in the last 72 hours is $725
The fastest flight from Philadelphia to Costa Rica takes 6h 56m
Direct flights go from Philadelphia to Costa Rica on Sunday. There are no airlines offering direct flights.
There are 40 airports in Costa Rica. From Philadelphia there are direct flights to Liberia (LIR).
Search flight deals

Frequently asked questions about flying from Philadelphia to Costa Rica

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

    Prices for flights from Philadelphia Airport to Costa Rica refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Costa Rica.

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

    The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Costa Rica?

Best airlines flying from Philadelphia to Costa Rica

Compare and see reviews for airlines that fly from Philadelphia to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $170Free CancellationRating
7.8
8,453 reviews
Search Delta flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,898 reviews
Search United Airlines flights
JetBluePriceFrom $270Free CancellationRating
7.1
3,013 reviews
Search JetBlue flights
FrontierPriceFrom $275Free CancellationRating
5.6
2,856 reviews
Search Frontier flights
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,773 reviews
Search American Airlines flights
SouthwestPriceFrom $437Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
GOLPriceFrom $480Free CancellationRating
7.3
1,244 reviews
Search GOL flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Costa Rica. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Philadelphia to Costa Rica flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Costa Rica from Philadelphia.

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

If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from Philadelphia and alert you when they change.

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