$123 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 4/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Costa Rica

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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$291
Liberia
Liberia1 stop$372
San José
San José1 stop$291
Liberia
Liberia1 stop$372

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

Per, May 14 - Paz, May 24
Multiple Airlines Logo
5:45 am - 11:33 am
PHL
-
SJO
7h 48m
1 stop
Multiple Airlines Logo
9:35 am - 8:54 am
SJO
-
PHL
21h 19m
1 stop
$291Multiple Airlines
Cum, Nis 10 - Per, Nis 16
Multiple Airlines Logo
10:36 pm - 9:01 am
PHL
-
SJO
12h 25m
1 stop
Multiple Airlines Logo
12:38 pm - 11:37 pm
SJO
-
PHL
8h 59m
1 stop
$294Multiple Airlines
Pzt, Nis 20 - Pzt, Nis 27
Spirit Airlines Logo
5:45 am - 11:33 am
PHL
-
SJO
7h 48m
1 stop
Spirit Airlines Logo
12:38 pm - 9:49 am
SJO
-
PHL
19h 11m
1 stop
$296Spirit Airlines
Paz, Nis 12 - Per, Nis 16
Multiple Airlines Logo
5:01 am - 12:12 pm
PHL
-
SJO
9h 11m
1 stop
Multiple Airlines Logo
12:38 pm - 11:37 pm
SJO
-
PHL
8h 59m
1 stop
$300Multiple Airlines
Cmt, Nis 11 - Pzt, May 4
Spirit Airlines Logo
6:48 am - 11:14 am
PHL
-
SJO
6h 26m
1 stop
Spirit Airlines Logo
12:38 pm - 11:37 pm
SJO
-
PHL
8h 59m
1 stop
$301Spirit Airlines
Cmt, May 16 - Paz, May 24
JetBlue Logo
7:00 am - 11:55 am
PHL
-
LIR
6h 55m
1 stop
JetBlue Logo
1:00 pm - 10:47 pm
LIR
-
PHL
7h 47m
1 stop
$372JetBlue
Paz, Nis 12 - Per, Nis 23
JetBlue Logo
7:00 am - 11:55 am
PHL
-
LIR
6h 55m
1 stop
JetBlue Logo
1:00 pm - 11:02 pm
LIR
-
PHL
8h 02m
1 stop
$374JetBlue
Cmt, Nis 18 - Cmt, Nis 25
United Airlines Logo
7:45 pm - 12:10 pm
PHL
-
LIR
18h 25m
2 stops
United Airlines Logo
3:27 pm - 10:28 am
LIR
-
PHL
17h 01m
2 stops
$381United Airlines
Çar, Nis 15 - Çar, Nis 22
American Airlines Logo
6:00 am - 1:10 pm
PHL
-
LIR
9h 10m
2 stops
American Airlines Logo
2:40 pm - 7:40 am
LIR
-
PHL
15h 00m
2 stops
$386American Airlines
Cmt, Nis 18 - Cmt, Nis 25
United Airlines Logo
8:00 am - 2:25 pm
PHL
-
LIR
8h 25m
1 stop
United Airlines Logo
3:27 pm - 11:43 am
LIR
-
PHL
18h 16m
1 stop
$391United 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 $550 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 $550.

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 $329 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $655 and $548 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 18% 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$123
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 32% 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 8357 reviews
7.2Food
7.9Comfort
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

10.0 ExcellentCharlean, Mar 2026
LAS - ATL
Read more Delta reviews

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

Excellent service, I love the soft blush pink mood lighting on the 767-400ER during meal service. The overhead gasper vents on the 767-400ER were also very strong with a lot of airflow to keep me comfortable on my flight.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

Absolutely horrible. Flight was delayed 4 hours and they had no clue what was going on.

Onboard functioning wide-variety entertainment on a budget and having an open pantry is nice. Seats are not comfortable but go provide plenty of legroom for a 6'2" 260lbs man.

Even though the weather made a lot of flights become cancelled Jet Blue made the flight that was supposed to leave at 9 pm and we left at 12:15 am and I was so grateful- Thanks to the Senior Jet Blue Staff who made those decisions

Worst customer service ever experienced on the planet, dirty plane, no communication, and severe delays

Flight cancelled 2 hours prior to boarding. No explanation. No refunds.

Delayed by 1.5 hours. Terrible apologies, half hearted at best. It will be a LONG time until i book w Jet Blue again. Very disappointed.

My check in was stressful. I somehow lost my seat from my original booking, the plane showed no availability/no seat when it was time to check-in. I called and was instructed to try to get a seat at the airport. I asked if it was a full flight and the travel agent said the site showed some seating but was not able to secure one for me. Why not? On my way to the airport the app finally revealed one available seat towards the back of the aircraft that I was able to book. It ended up being an overbooked flight, so glad I wasn't stuck.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

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

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Broke my luggage and I can't get a resolution yet.

My flight to London from Philadelphia was cancelled due to weather.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

We had to take a bus to the plane with a old woman and carry on bags, and at landing at the airport we have to wait one hour seating on the plane waiting for a gate. We came back from Australia Bussines class Quantas 16 hours traveling, then wait in Dallas 7 hours for connection...honestly waiting 1 hour more at the plane was the worst part.

Flight delayed twice (not Spirit fault) No food served* No entertainment * *in response to my choices in the rating. None was provided so couldn’t rate properly

Delayed over two hours. Only knew about a 30 minute delay in advance

Poor service but I guess that’s what you get for picking cheap flight. Overacted with all extra up-charge fees, so annoying.

They canceled both the flight to Myrtle beach and the return flight. They are an awful airline and they ruined my trip. I will never book with Spirit again.

The flight was a big joke very uncomfortable I had a horrible experience and I will never fly with them again everything about the flight was bogus and I’m not happy with it at all this experience makes me not want to fly ever again

Pricing, boarding time communication, over priced baggage and overall service is lacking, seating unconfortable

Flight attendant was all so sweet and pilot got us to our destination safely and on time

They cancelled our flight. 2 hours before we were supposed to take off and offered us nothing! We got our money back and that was it. No other flight to get to our cruise no working with another airline or with us to get there. Terrible customer service, no apology.

we boarded the plane and then sat for OVER AN HOUR on it, first waiting for fuel and then the crew timed out. the flight kept getting delayed longer and longer, a 9:30pm flight is still on the ground at 1:15am.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

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

Information on your arrival and departure airports