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Cheap flights from Philadelphia to Costa Rica from $170

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 6/29. 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.
United Airlines Logo
7:40 pm - 12:10 pm
PHL
-
LIR
18h 30m
2 stops
United Airlines Logo
1:03 pm - 10:11 am
LIR
-
PHL
19h 08m
1 stop
$372United Airlines
Sat, Sep 19 - Sat, Sep 26
Delta Logo
5:30 am - 11:58 am
PHL
-
SJO
8h 28m
1 stop
Delta Logo
1:23 pm - 12:51 am
SJO
-
PHL
9h 28m
1 stop
$377Delta
Mon, Oct 12 - Mon, Oct 19
United Airlines Logo
6:16 am - 12:10 pm
PHL
-
LIR
7h 54m
1 stop
United Airlines Logo
1:20 pm - 2:40 pm
LIR
-
PHL
23h 20m
2 stops
$377United Airlines
Fri, Aug 28 - Fri, Sep 4
American Airlines Logo
8:20 am - 1:18 pm
PHL
-
LIR
6h 58m
1 stop
American Airlines Logo
2:47 pm - 9:36 am
LIR
-
PHL
16h 49m
1 stop
$382American Airlines
Thu, Sep 17 - Thu, Sep 24
American Airlines Logo
5:00 am - 12:09 pm
PHL
-
SJO
8h 09m
1 stop
American Airlines Logo
3:11 pm - 9:25 am
SJO
-
PHL
17h 14m
1 stop
$384American Airlines
Tue, Nov 3 - Wed, Nov 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
United Airlines Logo
6:16 am - 12:21 pm
PHL
-
SJO
8h 05m
1 stop
United Airlines Logo
1:25 pm - 9:33 am
SJO
-
PHL
18h 08m
2 stops
$389United Airlines
Mon, Sep 28 - Sat, Oct 3
American Airlines Logo
8:23 pm - 1:47 pm
PHL
-
LIR
19h 24m
1 stop
American Airlines Logo
2:18 pm - 11:52 am
LIR
-
PHL
19h 34m
1 stop
$392American Airlines
Wed, Sep 9 - Sun, Sep 13
American Airlines Logo
5:00 am - 12:09 pm
PHL
-
SJO
8h 09m
1 stop
American Airlines Logo
3:11 pm - 9:25 am
SJO
-
PHL
17h 14m
1 stop
$394American Airlines
Tue, Nov 3 - Wed, Nov 11
American Airlines Logo
8:23 pm - 1:47 pm
PHL
-
LIR
19h 24m
1 stop
American Airlines Logo
2:18 pm - 8:15 am
LIR
-
PHL
15h 57m
2 stops
$397American Airlines
Wed, Sep 9 - Sun, Sep 13

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Southwest flights from Philadelphia to Costa Rica

Our best Southwest deals on Philadelphia to Costa Rica flight tickets
Southwest
Oct 6
PHL6:30 pmPhiladelphia
13h 30m
2 stops
SJO6:00 amSan José Juan Santamaria Intl
Oct 13
SJO12:35 pmSan José Juan Santamaria Intl
20h 25m
2 stops
PHL11:00 amPhiladelphia
$484
Southwest
Sep 28
PHL8:00 amPhiladelphia
12h 40m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
Oct 3
SJO12:15 pmSan José Juan Santamaria Intl
20h 25m
2 stops
PHL10:40 amPhiladelphia
$507
Southwest
Sep 14
PHL6:20 amPhiladelphia
14h 20m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
Sep 20
SJO9:00 amSan José Juan Santamaria Intl
12h 30m
1 stop
PHL11:30 pmPhiladelphia
$512

American Airlines flights from Philadelphia to Costa Rica

Our best American Airlines deals on Philadelphia to Costa Rica flight tickets
American Airlines
Nov 3
PHL5:00 amPhiladelphia
8h 09m
1 stop
SJO12:09 pmSan José Juan Santamaria Intl
Nov 11
SJO3:11 pmSan José Juan Santamaria Intl
17h 14m
1 stop
PHL9:25 amPhiladelphia
$384
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
Sep 9
PHL8:23 pmPhiladelphia
19h 24m
1 stop
LIR1:47 pmLiberia
Sep 13
LIR2:18 pmLiberia
19h 34m
1 stop
PHL11:52 amPhiladelphia
$392

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 19, 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

Sat 9/19

7:40 pm-12:10 pm

2 stops18h 30m

Liberia

Sat 9/26

1:03 pm-10:11 am

1 stop19h 08m

$372
Quickest round-trip

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 10/12

5:30 am-11:58 am

1 stop8h 28m

San José Juan Santamaria Intl

Mon 10/19

1:23 pm-12:51 am

1 stop9h 28m

$377

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Fri 8/28

6:16 am-12:10 pm

1 stop7h 54m

Liberia

Fri 9/4

1:20 pm-2:40 pm

2 stops23h 20m

$377

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Thu 9/17

8:20 am-1:18 pm

1 stop6h 58m

Liberia

Thu 9/24

2:47 pm-9:36 am

1 stop16h 49m

$382

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Tue 11/3

5:00 am-12:09 pm

1 stop8h 09m

San José Juan Santamaria Intl

Wed 11/11

3:11 pm-9:25 am

1 stop17h 14m

$384

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

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 9/28

6:16 am-12:21 pm

1 stop8h 05m

San José Juan Santamaria Intl

Sat 10/3

1:25 pm-9:33 am

2 stops18h 08m

$389

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 9/9

8:23 pm-1:47 pm

1 stop19h 24m

Liberia

Sun 9/13

2:18 pm-11:52 am

1 stop19h 34m

$392

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Tue 11/3

5:00 am-12:09 pm

1 stop8h 09m

San José Juan Santamaria Intl

Wed 11/11

3:11 pm-9:25 am

1 stop17h 14m

$394

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 9/9

8:23 pm-1:47 pm

1 stop19h 24m

Liberia

Sun 9/13

2:18 pm-8:15 am

2 stops15h 57m

$397

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 $495 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 $355 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

$861

Fastest flight time

5h 09m

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 $861
The fastest flight from Philadelphia to Costa Rica takes 5h 09m
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
FrontierPriceFrom $141Free CancellationRating
5.6
2,878 reviews
Search Frontier flights
DeltaPriceFrom $170Free CancellationRating
7.8
8,420 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,867 reviews
Search United Airlines flights
JetBluePriceFrom $270Free CancellationRating
7.1
2,987 reviews
Search JetBlue flights
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,710 reviews
Search American Airlines flights
SouthwestPriceFrom $437Free CancellationRating
7.9
4,241 reviews
Search Southwest flights
GOLPriceFrom $480Free CancellationRating
7.3
1,234 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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