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Cheap flights from Philadelphia to Costa Rica from $171

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 10/4. 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
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
$374United Airlines
Tue, Sep 29 - Sat, Oct 3
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
$379United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
6:16 am - 12:10 pm
PHL
-
LIR
7h 54m
1 stop
United Airlines Logo
1:20 pm - 11:41 am
LIR
-
PHL
20h 21m
1 stop
$384United Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
7:45 pm - 12:25 pm
PHL
-
LIR
17h 40m
1 stop
American Airlines Logo
11:55 am - 12:49 am
LIR
-
PHL
11h 54m
1 stop
$394American Airlines
Sat, Dec 12 - Thu, Dec 17
American Airlines Logo
5:00 am - 1:50 pm
PHL
-
LIR
9h 50m
1 stop
American Airlines Logo
3:28 pm - 9:28 am
LIR
-
PHL
17h 00m
1 stop
$399American Airlines
Wed, Dec 9 - Wed, Dec 16
Air Canada Logo
10:05 am - 8:20 pm
PHL
-
SJO
12h 15m
1 stop
Air Canada Logo
7:10 am - 10:09 am
SJO
-
PHL
24h 59m
1 stop
$414Air Canada
Wed, Aug 19 - Wed, Aug 26
Air Canada Logo
10:50 am - 8:20 pm
PHL
-
SJO
11h 30m
2 stops
Air Canada Logo
7:10 am - 9:34 pm
SJO
-
PHL
12h 24m
2 stops
$417Air Canada
Wed, Aug 19 - Wed, Aug 26
JetBlue Logo
7:00 am - 11:57 am
PHL
-
LIR
6h 57m
1 stop
JetBlue Logo
1:05 pm - 11:07 pm
LIR
-
PHL
8h 02m
1 stop
$419JetBlue
Sat, Sep 26 - Sat, Oct 3
Frontier Logo
5:00 pm - 8:20 am
PHL
-
SJO
17h 20m
1 stop
Frontier Logo
9:35 am - 11:40 am
SJO
-
PHL
24h 05m
1 stop
$435Frontier
Wed, Jul 29 - Thu, Aug 13
JetBlue Logo
6:00 am - 12:55 pm
PHL
-
SJO
8h 55m
1 stop
JetBlue Logo
2:05 pm - 11:44 pm
SJO
-
PHL
7h 39m
1 stop
$447JetBlue
Mon, Oct 19 - Fri, Oct 23

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Air Canada flights from Philadelphia to Costa Rica

Our best Air Canada deals on Philadelphia to Costa Rica flight tickets
Air Canada
Aug 19
PHL10:05 amPhiladelphia
12h 15m
1 stop
SJO8:20 pmSan José Juan Santamaria Intl
Aug 26
SJO7:10 amSan José Juan Santamaria Intl
24h 59m
1 stop
PHL10:09 amPhiladelphia
$414
Air Canada
Aug 19
PHL10:50 amPhiladelphia
11h 30m
2 stops
SJO8:20 pmSan José Juan Santamaria Intl
Aug 26
SJO7:10 amSan José Juan Santamaria Intl
12h 24m
2 stops
PHL9:34 pmPhiladelphia
$417
Air Canada
Aug 19
PHL10:05 amPhiladelphia
12h 15m
1 stop
SJO8:20 pmSan José Juan Santamaria Intl
Aug 26
SJO7:10 amSan José Juan Santamaria Intl
12h 24m
2 stops
PHL9:34 pmPhiladelphia
$421

JetBlue flights from Philadelphia to Costa Rica

Our best JetBlue deals on Philadelphia to Costa Rica flight tickets
JetBlue
Sep 26
PHL7:00 amPhiladelphia
6h 57m
1 stop
LIR11:57 amLiberia
Oct 3
LIR1:05 pmLiberia
8h 02m
1 stop
PHL11:07 pmPhiladelphia
$419
JetBlue
Oct 19
PHL6:00 amPhiladelphia
8h 55m
1 stop
SJO12:55 pmSan José Juan Santamaria Intl
Oct 23
SJO2:05 pmSan José Juan Santamaria Intl
7h 39m
1 stop
PHL11:44 pmPhiladelphia
$447
JetBlue
Nov 10
PHL8:15 amPhiladelphia
6h 45m
1 stop
LIR2:00 pmLiberia
Nov 12
LIR3:05 pmLiberia
7h 34m
1 stop
PHL11:39 pmPhiladelphia
$472

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 July 8, 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 9/29

6:16 am-12:10 pm

1 stop7h 54m

Liberia

Sat 10/3

1:03 pm-10:11 am

1 stop19h 08m

$374

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Fri 9/11

7:40 pm-12:10 pm

2 stops18h 30m

Liberia

Tue 9/15

1:20 pm-10:02 am

2 stops18h 42m

$379

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 10/24

6:16 am-12:10 pm

1 stop7h 54m

Liberia

Wed 10/28

1:20 pm-11:41 am

1 stop20h 21m

$384

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 12/12

7:45 pm-12:25 pm

1 stop17h 40m

Liberia

Thu 12/17

11:55 am-12:49 am

1 stop11h 54m

$394

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 12/9

5:00 am-1:50 pm

1 stop9h 50m

Liberia

Wed 12/16

3:28 pm-9:28 am

1 stop17h 00m

$399

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 8/19

10:05 am-8:20 pm

1 stop12h 15m

San José Juan Santamaria Intl

Wed 8/26

7:10 am-10:09 am

1 stop24h 59m

$414

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 8/19

10:50 am-8:20 pm

2 stops11h 30m

San José Juan Santamaria Intl

Wed 8/26

7:10 am-9:34 pm

2 stops12h 24m

$417
Quickest round-trip

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 9/26

7:00 am-11:57 am

1 stop6h 57m

Liberia

Sat 10/3

1:05 pm-11:07 pm

1 stop8h 02m

$419

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Wed 7/29

5:00 pm-8:20 am

1 stop17h 20m

San José Juan Santamaria Intl

Thu 8/13

9:35 am-11:40 am

1 stop24h 05m

$435

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 10/19

6:00 am-12:55 pm

1 stop8h 55m

San José Juan Santamaria Intl

Fri 10/23

2:05 pm-11:44 pm

1 stop7h 39m

$447

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 $488 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 $358 on momondo.

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

There are 2 cabin classes 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 4% 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

$706

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 $706
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 $119Free CancellationRating
5.6
2,836 reviews
Search Frontier flights
DeltaPriceFrom $170Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,948 reviews
Search United Airlines flights
JetBluePriceFrom $270Free CancellationRating
7.1
3,012 reviews
Search JetBlue flights
American AirlinesPriceFrom $289Free CancellationRating
7.1
11,783 reviews
Search American Airlines flights
SouthwestPriceFrom $437Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
GOLPriceFrom $480Free CancellationRating
7.3
1,254 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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