Cheap Flights from Philadelphia International to Liberia

Compare Philadelphia International to Liberia flight deals

Find the cheapest month or even day of the year to fly to Liberia

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Flight deals from Philadelphia International to Liberia

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia International Airport to Liberia Airport? If you want to travel next month, round-trip fares start from $379. Find the lowest prices on one-way and round-trip tickets right here.

Liberia.$379 per passenger.Departing Mon, May 4, returning Sat, May 9.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Mon, May 4, arriving in Liberia.Inbound indirect flight with Delta, departing from Liberia on Sat, May 9, arriving in Philadelphia International.Price includes taxes and charges.From $379, select.

Liberia.$399 per passenger.Departing Thu, Nov 26, returning Thu, Dec 3.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Thu, Nov 26, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Thu, Dec 3, arriving in Philadelphia International.Price includes taxes and charges.From $399, select.

Liberia.$402 per passenger.Departing Sat, May 30, returning Wed, Jun 3.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Sat, May 30, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Jun 3, arriving in Philadelphia International.Price includes taxes and charges.From $402, select.

Liberia.$402 per passenger.Departing Fri, Jun 5, returning Wed, Jun 10.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Fri, Jun 5, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Jun 10, arriving in Philadelphia International.Price includes taxes and charges.From $402, select.

Liberia.$419 per passenger.Departing Sun, Jan 17, returning Sat, Jan 23.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Sun, Jan 17, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Sat, Jan 23, arriving in Philadelphia International.Price includes taxes and charges.From $419, select.

Liberia.$438 per passenger.Departing Mon, Aug 3, returning Wed, Aug 26.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Mon, Aug 3, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Aug 26, arriving in Philadelphia International.Price includes taxes and charges.From $438, select.

Liberia.$443 per passenger.Departing Mon, Nov 9, returning Mon, Nov 16.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Mon, Nov 9, arriving in Liberia.Inbound indirect flight with Delta, departing from Liberia on Mon, Nov 16, arriving in Philadelphia International.Price includes taxes and charges.From $443, select.

Liberia.$443 per passenger.Departing Sat, Apr 25, returning Sat, May 2.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Sat, Apr 25, arriving in Liberia.Inbound indirect flight with Delta, departing from Liberia on Sat, May 2, arriving in Philadelphia International.Price includes taxes and charges.From $443, select.

Liberia.$454 per passenger.Departing Thu, Oct 22, returning Mon, Oct 26.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Thu, Oct 22, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Mon, Oct 26, arriving in Philadelphia International.Price includes taxes and charges.From $454, select.

Liberia.$467 per passenger.Departing Sun, Apr 26, returning Wed, Apr 29.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Sun, Apr 26, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Apr 29, arriving in Philadelphia International.Price includes taxes and charges.From $467, select.

Liberia.$473 per passenger.Departing Thu, Jul 30, returning Wed, Aug 5.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Thu, Jul 30, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Aug 5, arriving in Philadelphia International.Price includes taxes and charges.From $473, select.

Liberia.$487 per passenger.Departing Thu, Sep 10, returning Sun, Sep 13.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Thu, Sep 10, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Sun, Sep 13, arriving in Philadelphia International.Price includes taxes and charges.From $487, select.

Liberia.$504 per passenger.Departing Fri, May 1, returning Wed, Jul 29.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Fri, May 1, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Jul 29, arriving in Philadelphia International.Price includes taxes and charges.From $504, select.

Liberia.$521 per passenger.Departing Tue, Jun 30, returning Wed, Jul 8.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Tue, Jun 30, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Jul 8, arriving in Philadelphia International.Price includes taxes and charges.From $521, select.

Liberia.$582 per passenger.Departing Sun, Jan 3, returning Sat, Feb 27.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Sun, Jan 3, arriving in Liberia.Inbound indirect flight with Delta, departing from Liberia on Sat, Feb 27, arriving in Philadelphia International.Price includes taxes and charges.From $582, select.

Liberia.$634 per passenger.Departing Fri, Jul 10, returning Wed, Jul 15.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Fri, Jul 10, arriving in Liberia.Inbound indirect flight with United, departing from Liberia on Wed, Jul 15, arriving in Philadelphia International.Price includes taxes and charges.From $634, select.

Find the cheapest month to fly from Philadelphia International to Liberia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Liberia flights are currently cheapest in May.

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Direct flights from Philadelphia International to Liberia

Philadelphia International to Liberia: Alternative routes

Compare routes from Philadelphia International to Liberia below. You may find an airport to fly into that's cheaper, faster, or easier than Liberia.

Philadelphia to Liberia: Flight information

The things to know before you go.

Cheapest flight found	$379
Cheapest month to fly	May
Average flight time	5 hrs, 9 mins
Most popular airline	American Airlines
Average flights per week	1

Finding cheap flights from Philadelphia International to Liberia: Frequently asked questions

How much are round-trip flights from Philadelphia International to Liberia?

The best price we found for a round-trip flight from Philadelphia International to Liberia is $379. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Philadelphia International to Liberia?

5 hours and 9 minutes is the average flight time from Philadelphia International to Liberia.

Which airlines fly direct from Philadelphia International to Liberia?

American Airlines flies direct from Philadelphia International to Liberia.

How many flights are there a week from Philadelphia International to Liberia?

There is one flight per week flying from Philadelphia International to Liberia, as of April 2026.

When is the cheapest time to fly from Philadelphia International to Liberia?

The cheapest month to fly from Philadelphia International to Liberia is usually May.

Which upcoming date is cheapest to fly from Philadelphia International Airport to Liberia Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Liberia Airport on Monday, May 4, 2026.

Can I get a direct flight from Philadelphia International Airport to Liberia Airport?

Yes – the average flight time is 5 hours and 9 minutes.

How can I find the best flight deal to Liberia?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Liberia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Liberia?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Liberia is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Philadelphia International Airport to Liberia?

Currently, Delta offers the cheapest flight tickets to Liberia.

Flying from Philadelphia International Airport (PHL) to Liberia Airport (LIR): what you need to know

Around 5 hours 15 minutes is how long you can expect to be traveling on a direct flight from Philadelphia International Airport to Liberia Airport.
The timezone in Liberia is UTC-6, which is two hours behind Philadelphia.
Give yourself enough time to make your PHL to LIR flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.
During popular months such as August, it's best to get to the airport earlier. Arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during peak periods in general.
American Airlines is your gateway to discovering Liberia (and perhaps some other exciting corners of Costa Rica!). Check out the direct flights from Philadelphia International Airport to Liberia Airport offered by this popular carrier.
The majority of travelers choose to travel with American Airlines on this route.
The most punctual carrier that offers PHL to LIR flights is American Airlines. Its services arrive as scheduled 66.67% of the time.
Think about adding a stopover when booking your ticket from Philadelphia International Airport to Liberia Airport. Simply uncheck 'Direct flights only' to break up your journey, or even explore someplace new along the way. Check out these options between PHL and LIR:
- Miami International Airport
- Hartsfield-Jackson Atlanta International Airport
- Logan International Airport

How to find the cheapest flights from Philadelphia International Airport (PHL) to Liberia Airport (LIR)

Right now, $161 is the cheapest price we've found for a one-way Philadelphia International Airport to Liberia Airport flight. The best price for a return plane ticket is $379. Keep in mind that fares may change due to availability at the time of booking.
Book six months before traveling. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from PHL to LIR.
The cheapest month for flights from Philadelphia International Airport to Liberia Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.
There's no need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as the price changes on cheap flights from PHL to LIR.
Choose your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Philadelphia International Airport to Liberia Airport.

Handy information about Philadelphia International Airport (PHL)

PHL's address is Industrial Highway and Island Road.
Of the flights that depart from Philadelphia International Airport, 78.93% land on schedule at their destination.
To reach Philadelphia International Airport from central Philadelphia, it takes about 15 minutes if you're traveling by car. Of course, this depends on traffic conditions. It's approximately 19 kilometers from the airport to the city center.
Expect a journey time of around 45 minutes when using public transport.
Looking for a handy hotel close to PHL? If you're boarding an early flight from Philadelphia International Airport to Liberia Airport, these accommodation options will have you moments from check-in:

Arriving at Liberia Airport (LIR)

If you're landing on a late Philadelphia International Airport to Liberia Airport flight, few things beat the convenience of being near the terminal. Pick up your bags from the carousel and then be showered and resting shortly after at one of these options near LIR:
Get your adventure underway by picking up a Liberia Airport rental car. Grab your wheels from Avis, Europcar or NU Car Rentals and experience the lesser-explored corners of Liberia and beyond.
Secure the lowest price by reserving your ride from Liberia Airport about two weeks ahead of your trip.

Getting from Liberia Airport (LIR) to central Liberia

Liberia Airport is roughly 13 kilometers from the center of Liberia. Driving there takes about 20 minutes.

When to fly to Liberia Airport (LIR)

The quietest month for a flight from Philadelphia International Airport to Liberia Airport is May, while January is the busiest. Choose the ideal time to visit Liberia based on whether you prefer a bustling atmosphere or a more laid-back vibe.
The warmest month in Liberia is April, with temperatures ranging between 22ºC (72ºF) and 35ºC (95ºF). Book your flights from Philadelphia International Airport to Liberia Airport in this month if this is the type of weather you like.
November sees average temperatures of between 21ºC (70ºF) and 30ºC (86ºF). Look for cheap tickets from PHL to LIR around that time if you'd rather travel in cooler conditions.

Explore more of Costa Rica

San Jose is just one of the many places in Costa Rica waiting to be discovered once you've seen Liberia. Around 161 kilometers away to the south-east, check out popular attractions including Teatro Nacional Costa Rica, National Park (Parque Nacional) and Plaza de la Cultura.
Limon is another standout destination in Costa Rica and is around 274 kilometers east of Liberia. No trip is complete without seeing Veragua Rainforest Park, Playa Bonita and Cruise Pier Puerto Limon.