$96 Find Cheap Flights from Philadelphia to Costa Rica

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Costa Rica departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Philadelphia to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop$246
Liberia
Liberia1 stop$318
San José
San José1 stop$246
Liberia
Liberia1 stop$318

Book Cheap Philadelphia to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Costa Rica

lør., feb. 21 - tir., feb. 24
Spirit Airlines Logo
5:30 am - 11:40 am
PHL
-
SJO
7h 10m1 stop
Spirit Airlines Logo
12:35 pm - 11:50 pm
SJO
-
PHL
10h 15m2 stops
$246Spirit Airlines
man., feb. 16 - tor., feb. 19
Multiple Airlines Logo
2:25 pm - 11:40 am
PHL
-
SJO
22h 15m2 stops
Multiple Airlines Logo
1:31 pm - 11:50 pm
SJO
-
PHL
9h 19m1 stop
$247Multiple Airlines
man., jan. 19 - tor., jan. 22
Air Canada Logo
3:30 pm - 2:55 pm
PHL
-
LIR
24h 25m1 stop
Air Canada Logo
3:55 pm - 2:47 pm
LIR
-
PHL
21h 52m1 stop
$318Air Canada
lør., feb. 7 - fre., feb. 27
American Airlines Logo
7:55 am - 12:27 pm
PHL
-
LIR
5h 32mnonstop
American Airlines Logo
3:13 pm - 11:56 pm
LIR
-
PHL
7h 43m1 stop
$321American Airlines
man., feb. 9 - ons., feb. 18
JetBlue Logo
7:00 am - 12:40 pm
PHL
-
LIR
6h 40m1 stop
JetBlue Logo
1:40 pm - 11:29 pm
LIR
-
PHL
8h 49m1 stop
$322JetBlue
søn., jan. 18 - lør., jan. 24
Air Canada Logo
4:35 pm - 2:45 pm
PHL
-
LIR
23h 10m1 stop
Air Canada Logo
4:40 pm - 2:47 pm
LIR
-
PHL
21h 07m1 stop
$323Air Canada
lør., feb. 7 - lør., feb. 14
United Airlines Logo
5:00 pm - 1:10 pm
PHL
-
LIR
21h 10m2 stops
United Airlines Logo
8:35 am - 10:57 pm
LIR
-
PHL
13h 22m1 stop
$326United Airlines
man., feb. 9 - tir., apr. 7
JetBlue Logo
7:00 am - 12:40 pm
PHL
-
LIR
6h 40m1 stop
JetBlue Logo
3:15 pm - 8:00 am
LIR
-
PHL
14h 45m1 stop
$329JetBlue
tir., mar. 3 - man., mar. 9
United Airlines Logo
8:02 am - 6:37 pm
PHL
-
LIR
11h 35m2 stops
United Airlines Logo
11:35 am - 10:14 am
LIR
-
PHL
20h 39m2 stops
$330United Airlines
ons., jan. 28 - søn., feb. 1
American Airlines Logo
5:51 am - 12:37 pm
PHL
-
LIR
7h 46m1 stop
American Airlines Logo
3:13 pm - 9:25 am
LIR
-
PHL
17h 12m1 stop
$331American Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Costa Rica flights

Get data-powered insights and trends into flights from Philadelphia to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Philadelphia to Costa Rica flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Costa Rica from Philadelphia found in the last 72 hours was to Liberia, at $310 round-trip. The most popular route is from Philadelphia (PHL) to Liberia (LIR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $310.

What is the cheapest month to fly from Philadelphia to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Costa Rica, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Costa Rica is October, when tickets cost $356 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $680 and $571 respectively.

How far in advance should I book a flight from Philadelphia to Costa Rica?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Costa Rica, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Costa Rica, you should book around 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$96
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Philadelphia to San José

FAQs - booking Costa Rica flights

  • What documentation do I need to enter Costa Rica from the US?

    When you go to Costa Rica, your stay must last no more than 90 days and you must have a passport that is valid for that entire time. You must also show evidence that you plan to exit the country within 90 days, such as a return airline ticket.

  • Which airport is better to fly into, LIR or SJO?

    There are a number of factors to consider. For example, LIR is right near the beach, in case you would like to spend an extra day at the shore. One advantage of SJO is that of the two airports, you can catch domestic flights from SJO only. So, if you plan to fly elsewhere in Costa Rica, SJO is the airport for you.

  • Can I rent a car at both SJO and LIR?

    Yes, but renting a car at SJO is a bit more convenient. All the rental car counters are in the Arrivals area of SJO near customs. Once you have booked or checked in for your car, an agent from the rental company will escort you to your rental in the parking lot. At LIR, there are only three agencies at the airport, and the rest you need to get to via shuttle. Some companies at both airports include Enterprise, Budget, and Hertz.

  • Where in Costa Rica can I fly to from San Jose?

    Sansa Airlines can take you throughout Costa Rica to cites is such as Drake Bay, Limon, and Nosara Beach. Costa Rica Green Airways can take you to cities such as Quepos and Tambor.

  • How does KAYAK find such low prices on flights from Philadelphia to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Philadelphia to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Philadelphia to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Costa Rica

  • When you book a flight from Philadelphia International Airport (PHL) to Costa Rica, you will be landing at one of Costa Rica’s international airports. The Liberian International Airport (LIR), located in Liberia, Costa Rica, is located near the northwest coast of the country. Costa Rica's primary airport, The Juan Santamaria International Airport (SJO) is in San Jose, Costa Rica, located virtually in the center of the country.
  • It is unlikely that you will find a non-stop journey from PHL to SJO or LIR. However, airlines such as Delta, Sansa, Spirit, American, Copa, and United operate flights with one and two stops between PHL and SJO or LIR. Some layover cities include Fort Lauderdale (FLL), Miami (MIA), Chicago (ORD), Panama City (PTY), and more.
  • About an hour’s drive from LIR in Liberia, you can visit the city La Cruz, and spend the day fishing or taking ATV tours through the jungles. Santa Cruz in Costa Rica is also about an hour away from LIR by car. In Santa Cruz, you can indulge in natural hot springs, horseback riding, and spending time at the beach. If you drive to Canas, Costa Rica, you can visit the Cougar Refuge, go whitewater rafting, or take a leisurely boat trip down the river.
  • Whether you want to stay the night before your flight near PHL, the Philadelphia Airport Marriott is connected to the airport by way of a Sky Bridge to Terminal B. There is also free airport shuttle every 20min everyday. Inside the airport, you will also find Minute Suites: rooms you can rent by the hour where you can sleep, work, or freshen up.
  • If you are traveling with children, PHL has facilities designed to make your journey easier. PHL has Mamava lactation suites installed throughout the airport for nursing moms who would like to breastfeed in privacy or who need to pump. You can also find the children's indoor playground “Ready for Takeoff” located in Terminal A.

Reviews of the top 5 airlines serving from Philadelphia to Costa Rica

 
Need help choosing which airline to fly with from Philadelphia to Costa Rica? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8022 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
Airline reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

8.0 ExcellentG, Jan 2026
ATL - FLL
Read more Delta reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

The flight was canceled 3 hours after original take off time

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Good. No issues except a slight delay. Crew came in late.

Not a pleasant experience, service was poor. Didn't like it

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Once again, the staff seem to think they are above the customers and treat everyone with disdain, belittling people.

Sadly there was a crew member very rude with my kid and with me.

COMMUNICATION!!!! The issue was a crew shortage, which means you knew in advance the issue. Instead of notifying people in advance, we're finding out an hour before the flight it's canceled. You rebooked people to more flights you knew wouldn't get out. You ended by taking part of my party to a completely different state and leaving them there. The next morning, you still have no way to get them to the original destination and they ended up missing an important event. We came out of so much money to check bags multiple times. And on top of all that, the staff in the building seemed to not care and were fairly rude. Overall, just go on and fold and quit making promises to people to get them places when you know you can't. Shoutout to Delta for doing a great job at making it less painful (for those of us who made it).

Flight was canceled 8 hours before departure for lack of operational control and prepositioning of a plane. Then had the audacity to say it was because of weather, however there was no weather here in California or New Orleans or in between. It was the weather in Florida, Florida it had nothing to do with our flight path just the plane was supposed to fly us. 8 hours is more than enough time to move a plane anywhere in the US. That left me with a bill of 1200 dollars to re book a flight oh and kayaks insurance what a joke. Probably will never use kayak or spirit ever again terrible companies terrible customer service. I’ll also let everyone and anyone know this was an abomination and only for the customer. Also will be making a report to the DOT on bad business practices on behalf of kayak and spirit as well as the BBB. Do better, take care of your customers and don’t suck

The flight was cancelled without prior notice. I was inform as I was checking in. No hotel accommodation nor any simple explanation as why it was cancelled.

spirit delayed my first flight 9 hours and then cancelled my flight back home. Very disappointed with their service.

Flight cancelled and no alternative offered for over a week. Ruined our Christmas vacation plans

Flight was delayed from 10:09pm back to 12:41am and actually took off closer to 1am as they were waiting for an additional flight attendant. Plane was new and crew was fine once we got moving but the delay was rough. Also Spirit (have flown this twice) lands at the satellite gates at BNA and there is a ground shuttle to get you back to the main terminal that adds outdoor elements, extra walking and about 20 min total to the arrival timing. BNA may eventually connect this concourse in a better way as they grow but it’s notable.

The flight was on time, the crew is friendly, and the seat was nice and wide compared to some other airlines. (the KAYAK survey should allow for the response, not applicable, because I did not have any food or take advantage of the entertainment)

Cancel the ticket on my day that I’m travelling that it was

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.

Not clean and was told I would get a great seat and it was not great at all

Everything you need to know for your flight from Philadelphia to Costa Rica

Information on your arrival and departure airports