$171 Find Cheap Flights from Philadelphia to Costa Rica - Compare and Save

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 10/2. 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.
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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$414
Liberia
Liberia1 stop$374
San José
San José1 stop$414
Liberia
Liberia1 stop$374

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

Tue, Sep 29 - Sat, Oct 3
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
Fri, Sep 11 - Tue, Sep 15
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
Sat, Oct 24 - Wed, Oct 28
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, Dec 12 - Thu, Dec 17
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
Wed, Dec 9 - Wed, Dec 16
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, Aug 19 - Wed, Aug 26
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
Sat, Sep 26 - Sat, Oct 3
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
Wed, Jul 29 - Thu, Aug 13
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
Mon, Oct 19 - Fri, Oct 23
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
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 5 days was to Liberia, at $648 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 5 days was $648.

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 February, when tickets cost $104 (return) on average. On the other hand, the most expensive months are October and November, when the average cost of round-trip tickets is $209 and $183 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$171
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Philadelphia to Liberia

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.
7.8
DeltaOverall score based on 8451 reviews
7.8Comfort
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
Airline reviews

The flight was mostly smooth and direct (although it was 2 hours late). The glow of the flight attendant’s phone was annoying as I tried to sleep on this midnight flight.

8.0 ExcellentAnonymous, Jul 2026
DTW - MBS
Read more Delta reviews

The flight was mostly smooth and direct (although it was 2 hours late). The glow of the flight attendant’s phone was annoying as I tried to sleep on this midnight flight.

Connection flights should be spaced out farther because too close I missed my connection.

The flight was way too HOT! And the plane did not have any in-flight TV entertainment.

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

We splurged and decided to fly first class. Seats were roomy. But flight crew arrived late to the airport. That delayed our flight. Most of the passengers had to try to make connections flights. I felt bad for them. We checked 4 bags. We got three from the baggage claim carousel. 4th one was lost. Delta online help wasn’t good. Baggage claim staff were sympathetic and nice but we waited around for almost 2 hours and it had t been found. They did find it several hours later and we had to drive back to airport to retrieve it. I won’t be splurging on 1st. Lass again anytime soon. I think we got worse service. I am also not a huge fan of delta but we have family in ATL so we don’t have a ton of choice. What should have been an easy flight turned into a stressful event due to flight crew tardiness and baggage mishandling.

My flight consistently said it was on time and the plane didn’t arrive until after 30 minutes after take off and nothing was announced to passengers

Delta planes have the WORST seat comfort of any plane in history. It's the opposite of ergonomic, in every sense. They also recline minimally, are covered in a vinyl and have no feet rests. Then the disembarking process is chaotic and time consuming (because of the way they load the plane and deal with luggage). Overall, somewhat frustrating but we arrived safely :)

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

A three (3) hour flight should have meal service in First Class, not just potato chips!

Flight was on time, crew were excellent. For some reason our originally selected seats were changed. We had to re-choose our seats when we checked in online and options were limited. One of our two checked bags we placed on the wrong carousel. It was only be shear luck that I saw it. That cost us 20 minutes of wasted time. So much for the “priority” tags. They are meaningless, and have been ever since they were implemented. I wish you would do the save some money and stop using them.

Was given all 3 boarding passes. Was refused boarding to Brasilia in Miami even though I had up to date Brazilian Visa and US passport. Had to return to Phoenix as trip was cancelled. Waiting for refund of the fare. Missed my son's birthday and visit with him and his wife.

The pilots landing and taking off was very bad on the first flight, the second one taking off was great but landing was also rough

The check in and on the ground experience is very poor. Their online check and trip management is the worst I have ever seen and they have long lines to check in at the airport, technology is glitchy/unusable and have exorbitant baggage fees. The flight itself is fine, although the food is about what you would expect and their was no functioning entertainment for an international flight.

My experience with this flight was extremely negative and resulted in serious financial and personal consequences. The flight departed with a significant delay, which caused me to miss my international connecting flight. As a direct result of this delay — which was entirely beyond my control — I was unable to reach my final destination on time, causing me to lose a previously scheduled hair transplant surgery that had been arranged months in advance. This was not a minor inconvenience. The surgery involved: • A reserved operating room • Medical and technical staff scheduled specifically for that date • Surgical instruments prepared in advance • Strict scheduling that does not allow for easy rescheduling Due to the airline’s delay and poor handling of the situation: • I lost already paid international flight tickets • I was forced to purchase new tickets, incurring duplicate expenses • I spent over six additional hours in airports, under stressful conditions • I incurred unexpected costs for meals and transportation • I lost a medical opportunity that cannot be easily recovered, along with the emotional distress associated with it Although the airline covered one night of hotel accommodation, this did not address the real impact of the delay, nor the significant damages caused by missing a critical medical procedure. The lack of punctuality, planning, and effective solutions reflects a serious lack of responsibility toward passengers, especially when international connections and time-sensitive medical commitments are involved. I do not recommend this airline for travelers with important schedules, medical appointments, or critical connections. In my case, the delay did not merely cause inconvenience — it resulted in the loss of a surgery and substantial financial damage.

I was not able to get on the flight due to delays out of Philadelphia. I arrived in MIA at 10:30pm and there was no one at the GOL Desk. Is there any flight credit available for this flight?

Unfortunately it was very disappointed experience. Our first flight our was delayed 2 hours, as a consequence we missed our connecting international flight. Customer server at Miami American Airlines was very disrespectful, gave us the worst replace itenarary for the next day that we had to spend 2 hours calling Gol to get a better itinerary otherwise we wouldn't make it on time to fulfill our trip purpose. We would have missed the reason to travel all the way to Brazil if we didn't change for a better itinerary. The worst thing is that our baggage was missing for 4 days. We had no cloths for all this time, plus the aggravation to locate our baggage. Nobody knew where our baggage was. We ended up picking it up at the airport when they said that they will bring them home. Unfortunately our experience was very dissatisfied.

Lost luggage, people are not very nice to help you , I was just instructed to fill out a baggage claim online, they were not helpful when I had additional questions after I completed the form on my phone.

Horrible. I was never able to board the e flight as they had a glitch in their system that didn’t showed me as a passenger. I waited 2 hours at the front desk till they closed the flight, and they were not able to board me in it. They didn’t offer any sort of solution or refund. Such a disappointment. I would never flight with them again.

It was really bad. Inexperienced and rude people during check-in in Miami, a small and uncomfortable airplane, and problems with the airline caused me to lose my connection flight in Brasilia. Terrible experience!

American rescheduled with GOL. An error was made that caused significant issues including nit being able to checkin not having assigned seats, not getting seats together, arriving late, and the crew made no attempt to help.

Getting to Scotland with no luggage (no medicine, no clothes and no club) on golf trip very disappointed

Quick flight again no one illness why there were multiple delays and changing of the gate number.

The check in agents in PHL and gate agents had to have been the rudest women that I have ever encountered; the agent weighing the bags at check in screamed continuously at all of the guests as did the woman at the gate.I have Executive Platinum status with AA and fly a lot with AA but these ladies were the absolute worst I had the displeasure to encounter!

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Horrible. Flight was cancelled, jet blue app not working to rebook, no phone number available to call Jet Blue, 400 ish people in line for the help desk, stuck in Boston for 2 more days had to book new flight with a different airline and still not sure if I will be able to get any refund.

Flight was cancelled, no support at JFK even though it is their main hub.. wait times on the phone was very long

I liked the punctuality, the crew, and overall the whole flight

Separated a pair of family members(father and teenage daughter) on all legs of the flight that were booked together, just to create an upsell. Food was horrible and only catered to vegetarians and gluten free crowd. I’d rather give more of my money to another straight shooting airline.

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

The flight departed more than 1 hour late. Leg room is bigger than most airlines

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

I booked this flight using JetBlue points and I was just so happy. The plane was so clean, I had every need met. Thank you!!

As with all airline's seats, a little more padding would appreciated. Especially on longer flights.

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

Information on your arrival and departure airports