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Cheap flights from Philadelphia to Costa Rica from $163

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
0 bags

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Find the cheapest flights from Philadelphia to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 11:30 am
PHL
-
LIR
7h 30m
1 stop
American Airlines Logo
2:15 pm - 9:19 am
LIR
-
PHL
17h 04m
1 stop
$358American Airlines
Tue, Aug 4 - Thu, Aug 27
United Airlines Logo
6:16 am - 12:10 pm
PHL
-
LIR
7h 54m
1 stop
United Airlines Logo
1:03 pm - 10:11 am
LIR
-
PHL
19h 08m
1 stop
$362United Airlines
Mon, Sep 21 - Sat, Sep 26
United Airlines Logo
6:56 pm - 12:10 pm
PHL
-
LIR
19h 14m
2 stops
United Airlines Logo
4:30 pm - 9:46 am
LIR
-
PHL
15h 16m
2 stops
$367United Airlines
Mon, Sep 21 - Sat, Sep 26
Delta Logo
5:15 am - 11:49 am
PHL
-
SJO
8h 34m
1 stop
Delta Logo
1:14 pm - 1:19 am
SJO
-
PHL
10h 05m
1 stop
$374Delta
Mon, Aug 24 - Thu, Sep 3
American Airlines Logo
9:55 pm - 1:15 pm
PHL
-
LIR
17h 20m
1 stop
American Airlines Logo
2:27 pm - 9:48 am
LIR
-
PHL
17h 21m
1 stop
$374American Airlines
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
11:03 pm - 1:27 pm
PHL
-
LIR
16h 24m
1 stop
American Airlines Logo
3:41 pm - 9:22 am
LIR
-
PHL
15h 41m
1 stop
$378American Airlines
Fri, Jul 3 - Sat, Jul 11
GOL Logo
5:00 am - 10:59 pm
PHL
-
SJO
18h 59m
1 stop
GOL Logo
2:39 pm - 11:03 am
SJO
-
PHL
19h 24m
1 stop
$412GOL
Wed, Nov 11 - Sun, Nov 15
Delta Logo
6:35 am - 11:58 am
PHL
-
SJO
7h 23m
1 stop
Delta Logo
1:23 pm - 10:56 pm
SJO
-
PHL
7h 33m
1 stop
$414Delta
Wed, Oct 21 - Wed, Oct 28
GOL Logo
6:00 am - 12:03 pm
PHL
-
SJO
8h 03m
1 stop
GOL Logo
2:56 pm - 10:06 am
SJO
-
PHL
17h 10m
2 stops
$431GOL
Mon, Aug 24 - Thu, Sep 3
Southwest Logo
6:25 am - 6:40 pm
PHL
-
SJO
14h 15m
2 stops
Southwest Logo
9:00 am - 9:50 pm
SJO
-
PHL
10h 50m
2 stops
$450Southwest
Tue, Sep 1 - Thu, Sep 10

United Airlines flights from Philadelphia to Costa Rica

Our best United Airlines deals on Philadelphia to Costa Rica flight tickets
United Airlines
Sep 21
PHL6:56 pmPhiladelphia
19h 14m
2 stops
LIR12:10 pmLiberia
Sep 26
LIR1:03 pmLiberia
19h 08m
1 stop
PHL10:11 amPhiladelphia
$362
United Airlines
Sep 21
PHL6:56 pmPhiladelphia
19h 14m
2 stops
LIR12:10 pmLiberia
Sep 26
LIR4:30 pmLiberia
15h 16m
2 stops
PHL9:46 amPhiladelphia
$367
United Airlines
May 31
PHL6:00 amPhiladelphia
8h 21m
1 stop
SJO12:21 pmSan José Juan Santamaria Intl
Jun 7
SJO7:55 amSan José Juan Santamaria Intl
12h 34m
1 stop
PHL10:29 pmPhiladelphia
$374

GOL flights from Philadelphia to Costa Rica

Our best GOL deals on Philadelphia to Costa Rica flight tickets
GOL
Nov 11
PHL5:00 amPhiladelphia
18h 59m
1 stop
SJO10:59 pmSan José Juan Santamaria Intl
Nov 15
SJO2:39 pmSan José Juan Santamaria Intl
19h 24m
1 stop
PHL11:03 amPhiladelphia
$412
GOL
Aug 24
PHL6:00 amPhiladelphia
8h 03m
1 stop
SJO12:03 pmSan José Juan Santamaria Intl
Sep 3
SJO2:56 pmSan José Juan Santamaria Intl
17h 10m
2 stops
PHL10:06 amPhiladelphia
$431
GOL
Sep 5
PHL2:32 pmPhiladelphia
7h 21m
1 stop
SJO7:53 pmSan José Juan Santamaria Intl
Sep 9
SJO2:57 pmSan José Juan Santamaria Intl
16h 49m
2 stops
PHL9:46 amPhiladelphia
$460

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 May 30, 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

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Tue 8/4

6:00 am-11:30 am

1 stop7h 30m

Liberia

Thu 8/27

2:15 pm-9:19 am

1 stop17h 04m

$358

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Mon 9/21

6:16 am-12:10 pm

1 stop7h 54m

Liberia

Sat 9/26

1:03 pm-10:11 am

1 stop19h 08m

$362

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Mon 9/21

6:56 pm-12:10 pm

2 stops19h 14m

Liberia

Sat 9/26

4:30 pm-9:46 am

2 stops15h 16m

$367

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 8/24

5:15 am-11:49 am

1 stop8h 34m

San José Juan Santamaria Intl

Thu 9/3

1:14 pm-1:19 am

1 stop10h 05m

$374

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Fri 7/3

9:55 pm-1:15 pm

1 stop17h 20m

Liberia

Sat 7/11

2:27 pm-9:48 am

1 stop17h 21m

$374

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Fri 7/3

11:03 pm-1:27 pm

1 stop16h 24m

Liberia

Sat 7/11

3:41 pm-9:22 am

1 stop15h 41m

$378

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 11/11

5:00 am-10:59 pm

1 stop18h 59m

San José Juan Santamaria Intl

Sun 11/15

2:39 pm-11:03 am

1 stop19h 24m

$412
Quickest round-trip

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 10/21

6:35 am-11:58 am

1 stop7h 23m

San José Juan Santamaria Intl

Wed 10/28

1:23 pm-10:56 pm

1 stop7h 33m

$414

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 8/24

6:00 am-12:03 pm

1 stop8h 03m

San José Juan Santamaria Intl

Thu 9/3

2:56 pm-10:06 am

2 stops17h 10m

$431

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Tue 9/1

6:25 am-6:40 pm

2 stops14h 15m

San José Juan Santamaria Intl

Thu 9/10

9:00 am-9:50 pm

2 stops10h 50m

$450

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 $477 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 $354 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 3% 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

$861

Fastest flight time

6h 55m

Direct flights

None
The best flight deal from Philadelphia to Costa Rica found on momondo in the last 72 hours is $861
The fastest flight from Philadelphia to Costa Rica takes 6h 55m
There are no direct flights from Philadelphia to Costa Rica. Popular non-direct route for this connection is Philadelphia Airport - Liberia Airport.
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
FrontierPriceFrom $141Free CancellationRating
5.6
2,929 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $215Free CancellationRating
6.2
Search Spirit Airlines flights
DeltaPriceFrom $234Free CancellationRating
7.9
8,416 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,766 reviews
Search United Airlines flights
JetBluePriceFrom $270Free CancellationRating
7.1
2,985 reviews
Search JetBlue flights
SouthwestPriceFrom $285Free CancellationRating
8.0
4,262 reviews
Search Southwest flights
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
GOLPriceFrom $482Free CancellationRating
7.3
1,225 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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