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Cheap flights from Philadelphia to Costa Rica from $99

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 2/4. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
6:00 am - 12:22 pm
PHL
-
SJO
7h 22m
1 stop
Spirit Airlines Logo
12:35 pm - 11:50 pm
SJO
-
PHL
10h 15m
2 stops
$250Spirit Airlines
Mon, Feb 23 - Thu, Feb 26
Spirit Airlines Logo
6:00 am - 12:22 pm
PHL
-
SJO
7h 22m
1 stop
Spirit Airlines Logo
12:35 pm - 11:50 pm
SJO
-
PHL
10h 15m
2 stops
$257Spirit Airlines
Sat, Feb 21 - Tue, Feb 24
JetBlue Logo
7:00 am - 1:00 pm
PHL
-
SJO
7h 00m
1 stop
JetBlue Logo
2:05 pm - 11:29 pm
SJO
-
PHL
8h 24m
1 stop
$259JetBlue
Fri, Feb 13 - Wed, Feb 18
Multiple Airlines Logo
10:59 pm - 11:40 am
PHL
-
SJO
13h 41m
1 stop
Multiple Airlines Logo
1:31 pm - 12:44 am
SJO
-
PHL
10h 13m
1 stop
$262Multiple Airlines
Mon, Feb 16 - Fri, Feb 20
Spirit Airlines Logo
5:26 pm - 11:40 am
PHL
-
SJO
19h 14m
2 stops
Spirit Airlines Logo
1:31 pm - 11:50 pm
SJO
-
PHL
9h 19m
1 stop
$263Spirit Airlines
Thu, Feb 19 - Fri, Feb 27
American Airlines Logo
5:51 am - 2:13 pm
PHL
-
LIR
9h 22m
2 stops
American Airlines Logo
2:38 pm - 11:10 am
LIR
-
PHL
19h 32m
1 stop
$315American Airlines
Wed, Jan 28 - Sun, Feb 1
United Airlines Logo
7:45 pm - 1:10 pm
PHL
-
LIR
18h 25m
2 stops
United Airlines Logo
8:35 am - 9:09 pm
LIR
-
PHL
11h 34m
2 stops
$330United Airlines
Sat, Feb 7 - Sat, Feb 14
United Airlines Logo
8:00 am - 2:23 pm
PHL
-
LIR
8h 23m
1 stop
United Airlines Logo
3:25 pm - 12:17 pm
LIR
-
PHL
18h 52m
2 stops
$331United Airlines
Sat, May 2 - Sat, May 9
Delta Logo
5:40 am - 1:50 pm
PHL
-
LIR
9h 10m
1 stop
Delta Logo
2:05 pm - 12:57 am
LIR
-
PHL
8h 52m
1 stop
$335Delta
Mon, Feb 9 - Tue, Mar 24
American Airlines Logo
5:00 am - 12:12 pm
PHL
-
LIR
8h 12m
1 stop
American Airlines Logo
1:21 pm - 9:25 am
LIR
-
PHL
19h 04m
1 stop
$340American Airlines
Wed, Jan 28 - Sun, Feb 1

Spirit Airlines flights from Philadelphia to Costa Rica

Our best Spirit Airlines deals on Philadelphia to Costa Rica flight tickets
Spirit Airlines
Feb 23
PHL6:00 amPhiladelphia
7h 22m
1 stop
SJO12:22 pmSan José Juan Santamaria Intl
Feb 26
SJO12:35 pmSan José Juan Santamaria Intl
10h 15m
2 stops
PHL11:50 pmPhiladelphia
$250
Spirit Airlines
Feb 18
PHL5:30 amPhiladelphia
7h 10m
1 stop
SJO11:40 amSan José Juan Santamaria Intl
Feb 25
SJO12:35 pmSan José Juan Santamaria Intl
9h 41m
1 stop
PHL11:16 pmPhiladelphia
$256
Spirit Airlines
Jan 21
PHL8:43 pmPhiladelphia
15h 54m
1 stop
SJO11:37 amSan José Juan Santamaria Intl
Feb 4
SJO12:33 pmSan José Juan Santamaria Intl
8h 30m
1 stop
PHL10:03 pmPhiladelphia
$257

Avianca flights from Philadelphia to Costa Rica

Our best Avianca deals on Philadelphia to Costa Rica flight tickets
Avianca
Jan 17
PHL7:45 pmPhiladelphia
9h 05m
1 stop
SJO3:50 amSan José Juan Santamaria Intl
Jan 22
SJO5:10 pmSan José Juan Santamaria Intl
15h 27m
1 stop
PHL9:37 amPhiladelphia
$464
Avianca
Jan 21
PHL7:45 pmPhiladelphia
16h 40m
3 stops
SJO11:25 amSan José Juan Santamaria Intl
Feb 4
SJO4:30 pmSan José Juan Santamaria Intl
20h 40m
2 stops
PHL2:10 pmPhiladelphia
$487
Avianca
Jan 21
PHL7:45 pmPhiladelphia
16h 40m
3 stops
SJO11:25 amSan José Juan Santamaria Intl
Feb 4
SJO7:50 pmSan José Juan Santamaria Intl
17h 20m
2 stops
PHL2:10 pmPhiladelphia
$496

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 January 12, 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

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 2/23

6:00 am-12:22 pm

1 stop7h 22m

San José Juan Santamaria Intl

Thu 2/26

12:35 pm-11:50 pm

2 stops10h 15m

$250

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Sat 2/21

6:00 am-12:22 pm

1 stop7h 22m

San José Juan Santamaria Intl

Tue 2/24

12:35 pm-11:50 pm

2 stops10h 15m

$257

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Fri 2/13

7:00 am-1:00 pm

1 stop7h 00m

San José Juan Santamaria Intl

Wed 2/18

2:05 pm-11:29 pm

1 stop8h 24m

$259

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Mon 2/16

10:59 pm-11:40 am

1 stop13h 41m

San José Juan Santamaria Intl

Fri 2/20

1:31 pm-12:44 am

1 stop10h 13m

$262

PhiladelphiaSan José

PHL - SJO

PHLSJO

Philadelphia

Thu 2/19

5:26 pm-11:40 am

2 stops19h 14m

San José Juan Santamaria Intl

Fri 2/27

1:31 pm-11:50 pm

1 stop9h 19m

$263

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 1/28

5:51 am-2:13 pm

2 stops9h 22m

Liberia

Sun 2/1

2:38 pm-11:10 am

1 stop19h 32m

$315

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 2/7

7:45 pm-1:10 pm

2 stops18h 25m

Liberia

Sat 2/14

8:35 am-9:09 pm

2 stops11h 34m

$330

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Sat 5/2

8:00 am-2:23 pm

1 stop8h 23m

Liberia

Sat 5/9

3:25 pm-12:17 pm

2 stops18h 52m

$331

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Mon 2/9

5:40 am-1:50 pm

1 stop9h 10m

Liberia

Tue 3/24

2:05 pm-12:57 am

1 stop8h 52m

$335

PhiladelphiaLiberia

PHL - LIR

PHLLIR

Philadelphia

Wed 1/28

5:00 am-12:12 pm

1 stop8h 12m

Liberia

Sun 2/1

1:21 pm-9:25 am

1 stop19h 04m

$340

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 October. Flight prices, which tend to average around $356, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in October, then September is your next best option. Flight prices from Philadelphia to Costa Rica during September average around $400.

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 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 $501 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 $372 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 18% 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

$142

Fastest flight time

5h 30m

Direct flights

Sun

Airports in Costa Rica

40 airports
The best one-way flight to Costa Rica from Philadelphia in the past 72 hours is $142. The best round-trip flight deal from Philadelphia to Costa Rica found on momondo in the last 72 hours is $426.
The fastest flight from Philadelphia to Costa Rica takes 5h 30m
Direct flights go from Philadelphia to Costa Rica on Sunday. The only airline offering direct flights is American Airlines.
There are 40 airports in Costa Rica. From Philadelphia there are direct flights to Liberia (LIR).
Search flight deals

  • 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
5.7
3,055 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $234Free CancellationRating
6.3
8,297 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,144 reviews
Search United Airlines flights
JetBluePriceFrom $251Free CancellationRating
7.2
2,883 reviews
Search JetBlue flights
American AirlinesPriceFrom $296Free CancellationRating
7.2
11,110 reviews
Search American Airlines flights
DeltaPriceFrom $346Free CancellationRating
7.9
8,036 reviews
Search Delta flights
SouthwestPriceFrom $437Free CancellationRating
8.0
4,255 reviews
Search Southwest 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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