$98 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 1/6. 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$260
San José
San José1 stop$246
Liberia
Liberia1 stop$260

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

Sat, Feb 21 - Sat, Feb 28
Frontier Logo
5:30 am - 1:15 pm
PHL
-
SJO
8h 45m1 stop
Frontier Logo
2:33 pm - 11:13 am
SJO
-
PHL
19h 40m1 stop
$246Frontier
Wed, Feb 18 - Sun, Feb 22
Spirit Airlines Logo
6:00 am - 12:22 pm
PHL
-
SJO
7h 22m1 stop
Spirit Airlines Logo
1:31 pm - 11:50 pm
SJO
-
PHL
9h 19m1 stop
$249Spirit Airlines
Mon, Feb 23 - Fri, Feb 27
Spirit Airlines Logo
6:00 am - 12:22 pm
PHL
-
SJO
7h 22m1 stop
Spirit Airlines Logo
12:35 pm - 9:25 pm
SJO
-
PHL
7h 50m1 stop
$251Spirit Airlines
Mon, Jan 26 - Thu, Feb 5
Spirit Airlines Logo
6:00 am - 12:22 pm
PHL
-
SJO
7h 22m1 stop
Spirit Airlines Logo
1:30 pm - 11:50 pm
SJO
-
PHL
9h 20m1 stop
$254Spirit Airlines
Wed, Jan 7 - Sat, Jan 17
JetBlue Logo
7:00 am - 12:55 pm
PHL
-
LIR
6h 55m1 stop
JetBlue Logo
12:15 pm - 11:09 pm
LIR
-
PHL
9h 54m1 stop
$260JetBlue
Sat, Jan 31 - Sat, Feb 7
American Airlines Logo
7:55 am - 12:27 pm
PHL
-
LIR
5h 32mnonstop
American Airlines Logo
3:13 pm - 9:25 am
LIR
-
PHL
17h 12m1 stop
$276American Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
5:00 pm - 1:10 pm
PHL
-
LIR
21h 10m2 stops
United Airlines Logo
8:35 am - 10:59 pm
LIR
-
PHL
13h 24m1 stop
$281United Airlines
Wed, Jan 7 - Fri, Jan 16
Delta Logo
6:57 pm - 1:30 pm
PHL
-
LIR
19h 33m1 stop
Delta Logo
2:45 pm - 10:32 am
LIR
-
PHL
18h 47m1 stop
$285Delta
Sat, Mar 7 - Wed, Mar 11
American Airlines Logo
8:03 am - 12:20 pm
PHL
-
LIR
5h 17mnonstop
American Airlines Logo
1:40 pm - 9:41 am
LIR
-
PHL
18h 01m1 stop
$286American Airlines
Wed, Jan 7 - Tue, Jan 13
Delta Logo
9:40 am - 1:30 pm
PHL
-
LIR
28h 50m2 stops
Delta Logo
2:45 pm - 4:28 pm
LIR
-
PHL
24h 43m2 stops
$289Delta
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 $368 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 $368.

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 $710 and $588 respectively.

What’s the cheapest day of the week to fly from Philadelphia to Costa Rica?

The average price of all round-trip flights from Philadelphia to Costa Rica clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Philadelphia to Costa Rica, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Costa Rica, Tuesday is the cheapest day to fly and Friday is the most expensive.

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 25% 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$98
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 6% 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.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally at night, when round-trip flights cost $393 on average. Morning departures are around 34% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $596.

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 8005 reviews
7.9Entertainment
8.5Crew
8.1Boarding
7.9Comfort
7.3Food
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

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

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

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.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

Horrible. Arrived at my gate at 6:37 for a 6:50 flight and was denied by staff to board. Literally watched my flight leave from the window and it didn’t take off until after 7am. Tried to talk to staff and they were rude beyond compare. Will never fly with this airline again.

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

We had to sit and wait for almost an hour after landing and taxiing to the gate. The jet bridge was broken so we just waited and waited and waited and it was inconvenient, hot, and unnecessary.

Flight was in time, very smooth ride and surprisingly lots of legroom in the cabin so I certainly will fly with spirit again

The seats are the most uncomfortable seats I’ve ever sat in. Don’t believe I’ll ever fly spirit again!!

Flight was canceled and instead of rescheduling at the gate we had to go out to the ticket counter. Unruly kids kicking the back of my rows chair with staff to inattentive to say something.

Customer feedback I sent to Spirited today: “I will never fly Spirit Airlines again and will work hard to convince my friends and family to boycott/avoid Spirit Airlines at all costs. I booked three seats for me and my 8 and 10 year old children on NK 1222 from Orlando to Kansas City for 12/7/25 leaving Orlando at 10:37AM. This itinerary was abandoned by Spirit and we were rebooked onto Spirit flight NK 213 leaving at 9:06PM without any notice. Then the nightmare really began. Flight 213 was delayed a total of 12 times, finally leaving at 6:35AM the following day. The gate was changed 5 times and our electronic boarding passes were invalidated at midnight. The worst part was that the 12 separate delays were incremental making it impossible to plan for accommodations for my family. My kids missed a day of school and barely slept under the harsh lights with lots of noise on the filthy airport floor. The customer service agent at Spirit Airlines told us we would be emailed a voucher for a hotel which never happened. I asked about it multiple times and it never arrived in my email inbox. This whole unfortunate situation could’ve been avoided if spirit had taken a realistic approach and delayed the flight from 9 PM until 6 AM from the beginning. My son gleefully deleted the Spirit app from my phone once we landed and we will never fly with Spirit again.”

Honestly horrible. The plane on the way back was delayed 6 times with no explanation on why. When I asked for a refund or some money back because I had to miss a day of work because of the desk, they told me no. Because of how poorly it was handled I will most likely never take spirit again

I love a flight without turbulence and you guys deliver It’d be nice to have comfier seats and maybe some inflight entertainment and snacks but that’s for Delta

30 minute delay, Also there was a medical emergency on the flight. The flight crew was on top of the situation and assisted the medical professionals that happened to be on the flight.

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

Information on your arrival and departure airports