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Cheap flights from Philadelphia to Costa Rica from $165

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 8/29. 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

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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.
Delta Logo
5:20 am - 12:00 pm
PHL
-
LIR
8h 40m
1 stop
Delta Logo
1:25 pm - 12:21 am
LIR
-
PHL
8h 56m
1 stop
$362Delta
Tue, Sep 22 - Thu, Oct 8
United Airlines Logo
7:40 pm - 12:10 pm
PHL
-
LIR
18h 30m
2 stops
United Airlines Logo
1:20 pm - 10:02 am
LIR
-
PHL
18h 42m
2 stops
$367United Airlines
Sat, Aug 15 - Tue, Sep 15
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
American Airlines Logo
10:50 am - 7:53 pm
PHL
-
SJO
11h 03m
1 stop
American Airlines Logo
2:56 pm - 7:40 am
SJO
-
PHL
14h 44m
2 stops
$379American Airlines
Thu, Aug 20 - Wed, Aug 26
GOL Logo
6:00 am - 11:22 am
PHL
-
LIR
7h 22m
1 stop
GOL Logo
2:15 pm - 8:03 am
LIR
-
PHL
15h 48m
2 stops
$399GOL
Tue, Aug 4 - Thu, Aug 27
Air Canada Logo
3:20 pm - 1:40 pm
PHL
-
LIR
23h 20m
1 stop
Air Canada Logo
2:55 pm - 3:51 pm
LIR
-
PHL
23h 56m
1 stop
$401Air Canada
Wed, Nov 25 - Mon, Nov 30
Air Canada Logo
3:20 pm - 1:40 pm
PHL
-
LIR
23h 20m
1 stop
Air Canada Logo
2:55 pm - 2:44 pm
LIR
-
PHL
22h 49m
2 stops
$404Air Canada
Wed, Nov 25 - Mon, Nov 30
JetBlue Logo
6:00 am - 12:55 pm
PHL
-
LIR
8h 55m
1 stop
JetBlue Logo
2:05 pm - 11:44 pm
LIR
-
PHL
7h 39m
1 stop
$406JetBlue
Tue, Sep 22 - Tue, Oct 6
JetBlue Logo
8:10 am - 12:55 pm
PHL
-
LIR
6h 45m
1 stop
JetBlue Logo
2:05 pm - 11:44 pm
LIR
-
PHL
7h 39m
1 stop
$407JetBlue
Fri, Sep 25 - Tue, Oct 6
GOL Logo
5:00 am - 10:59 pm
PHL
-
SJO
18h 59m
1 stop
GOL Logo
3:11 pm - 12:23 am
SJO
-
PHL
8h 12m
1 stop
$407GOL
Wed, Nov 11 - Wed, Nov 18

Avianca flights from Philadelphia to Costa Rica

Our best Avianca deals on Philadelphia to Costa Rica flight tickets
Avianca
Oct 26
PHL8:00 pmPhiladelphia
14h 35m
2 stops
SJO8:35 amSan José Juan Santamaria Intl
Oct 31
SJO4:15 pmSan José Juan Santamaria Intl
16h 09m
2 stops
PHL10:24 amPhiladelphia
$466
Avianca
Oct 26
PHL8:00 pmPhiladelphia
14h 35m
2 stops
SJO8:35 amSan José Juan Santamaria Intl
Oct 31
SJO12:40 pmSan José Juan Santamaria Intl
19h 44m
3 stops
PHL10:24 amPhiladelphia
$467
Avianca
Oct 29
PHL10:15 amPhiladelphia
15h 25m
2 stops
SJO11:40 pmSan José Juan Santamaria Intl
Nov 4
SJO4:30 pmSan José Juan Santamaria Intl
15h 54m
2 stops
PHL9:24 amPhiladelphia
$469

Frontier flights from Philadelphia to Costa Rica

Our best Frontier deals on Philadelphia to Costa Rica flight tickets
Frontier
Jul 4
PHL9:16 pmPhiladelphia
13h 04m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 9
SJO9:35 amSan José Juan Santamaria Intl
13h 16m
1 stop
PHL12:51 amPhiladelphia
$470
Frontier
Jul 4
PHL9:16 pmPhiladelphia
13h 04m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 9
SJO9:35 amSan José Juan Santamaria Intl
13h 16m
1 stop
PHL12:51 amPhiladelphia
$478
Frontier
Jul 4
PHL9:16 pmPhiladelphia
13h 04m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 11
SJO9:45 amSan José Juan Santamaria Intl
12h 52m
1 stop
PHL12:37 amPhiladelphia
$490

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 4, 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 9/22

5:20 am-12:00 pm

1 stop8h 40m

Liberia

Thu 10/8

1:25 pm-12:21 am

1 stop8h 56m

$362

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 8/15

7:40 pm-12:10 pm

2 stops18h 30m

Liberia

Tue 9/15

1:20 pm-10:02 am

2 stops18h 42m

$367

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

Thu 8/20

10:50 am-7:53 pm

1 stop11h 03m

San José Juan Santamaria Intl

Wed 8/26

2:56 pm-7:40 am

2 stops14h 44m

$379

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Tue 8/4

6:00 am-11:22 am

1 stop7h 22m

Liberia

Thu 8/27

2:15 pm-8:03 am

2 stops15h 48m

$399

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 11/25

3:20 pm-1:40 pm

1 stop23h 20m

Liberia

Mon 11/30

2:55 pm-3:51 pm

1 stop23h 56m

$401

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 11/25

3:20 pm-1:40 pm

1 stop23h 20m

Liberia

Mon 11/30

2:55 pm-2:44 pm

2 stops22h 49m

$404

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Tue 9/22

6:00 am-12:55 pm

1 stop8h 55m

Liberia

Tue 10/6

2:05 pm-11:44 pm

1 stop7h 39m

$406
Quickest round-trip

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Fri 9/25

8:10 am-12:55 pm

1 stop6h 45m

Liberia

Tue 10/6

2:05 pm-11:44 pm

1 stop7h 39m

$407

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 11/11

5:00 am-10:59 pm

1 stop18h 59m

San José Juan Santamaria Intl

Wed 11/18

3:11 pm-12:23 am

1 stop8h 12m

$407

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 $478 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

5h 09m

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 5h 09m
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
2,914 reviews
Search Frontier flights
DeltaPriceFrom $234Free CancellationRating
7.8
8,395 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,774 reviews
Search United Airlines flights
JetBluePriceFrom $270Free CancellationRating
7.1
2,982 reviews
Search JetBlue flights
SouthwestPriceFrom $285Free CancellationRating
8.0
4,255 reviews
Search Southwest flights
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
GOLPriceFrom $482Free CancellationRating
7.3
1,224 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.

An easier way to manage your Costa Rica trip

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