How long is the flight from Philadelphia to Monrovia?

For as low as $1,470, British Airways can have you in Monrovia from Philadelphia in 44h 30m. The distance between Philadelphia and Monrovia is about 4614 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Philadelphia to Monrovia round-trip?

Our cheapest airline available from Philadelphia to Monrovia is Brussels Airlines. Our recent data shows that you can find tickets from as low as $1,435 on this airline. An additional option worth looking into is United Airlines, starting at $1,582. You may be able to fly from Philadelphia to Monrovia for 13% less than the average price by searching for these airlines.

Most accurate provider : When it comes to deals on Philadelphia-Monrovia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Monrovia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-Monrovia flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Philadelphia-Monrovia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Monrovia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Philadelphia to Monrovia that include hotel bookings?

Yes. In addition to deals on Philadelphia to Monrovia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Philadelphia to Monrovia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Monrovia.

Can I find deals for business class flights from Philadelphia to Monrovia?

Yes. Cheapflights offers flight deals from Philadelphia to Monrovia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$779+ Flights from Philadelphia to Monrovia

Q: How much does it cost to fly round-trip from Philadelphia to Monrovia?

Airfare is below average for this route at the moment. Philadelphia to Monrovia flights typically cost between $1,554 and $2,059 in December. The cheapest round-trip price found within the last 3 days was $1,425 on British Airways (Dec 3-Mar 24).

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1. Tell us where you want to go

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Find flight deals from Philadelphia to Monrovia

Cheapest flights from Philadelphia to Monrovia
Explore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Wed 12/37:56 pmPHL - ROB

2 stops27h 39mBritish Airways

Tue 3/243:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,425

Thu 12/49:22 pmPHL - ROB

3 stops50h 13mBritish Airways

Tue 3/243:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,442

Fri 12/57:56 pmPHL - ROB

2 stops27h 39mBritish Airways

Fri 12/195:35 amROB - PHL

3 stops34h 24mBritish Airways

Deal found 11/20

$1,612

Thu 12/45:40 pmPHL - ROB

2 stops20h 05mBrussels Airlines

Wed 3/2510:45 pmROB - PHL

2 stops24h 24mBrussels Airlines

Deal found 11/19

$1,641

Thu 12/49:22 pmPHL - ROB

3 stops50h 13mBritish Airways

Fri 12/195:35 amROB - PHL

3 stops34h 24mBritish Airways

Deal found 11/20

$1,647

Best flights from Philadelphia to Monrovia
Discover carefully curated flight deals from Philadelphia to Monrovia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.

Thu 12/49:22 pmPHL - ROB

3 stops50h 13mBritish Airways

Tue 3/243:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,442

Sun 1/187:45 pmPHL - ROB

3 stops44h 30mUnited Airlines

Sun 3/299:10 pmROB - PHL

2 stops45h 09mUnited Airlines

Deal found 11/19

$1,470

Wed 2/258:00 pmPHL - ROB

2 stops25h 05mBritish Airways

Sat 2/283:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,456

Fri 1/91:10 pmPHL - ROB

3 stops27h 05mUnited Airlines

Sat 1/3110:45 pmROB - PHL

2 stops42h 22mUnited Airlines

Deal found 11/19

$1,516

Wed 12/33:46 pmPHL - ROB

3 stops31h 49mBritish Airways

Tue 3/243:05 amROB - PHL

3 stops37h 50mBritish Airways

Deal found 11/20

$1,521

Wed 2/258:02 pmPHL - ROB

2 stops41h 43mUnited Airlines

Sun 3/110:45 pmROB - PHL

2 stops23h 29mUnited Airlines

Deal found 11/18

$1,540

Thu 1/85:00 pmPHL - ROB

3 stops47h 15mUnited Airlines

Wed 1/2110:45 pmROB - PHL

2 stops42h 22mUnited Airlines

Deal found 11/19

$1,588

Last-minute flights from Philadelphia to Monrovia
Discover last-minute flight deals from Philadelphia to Monrovia. Data last updated November 21, 2025 and is based on user searches.

Wed 12/37:56 pmPHL - ROB

2 stops27h 39mBritish Airways

Tue 3/243:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,425

Thu 12/49:22 pmPHL - ROB

3 stops50h 13mBritish Airways

Tue 3/243:05 amROB - PHL

2 stops42h 10mBritish Airways

Deal found 11/19

$1,442

Thu 12/45:40 pmPHL - ROB

2 stops20h 05mBrussels Airlines

Wed 3/2510:45 pmROB - PHL

2 stops24h 24mBrussels Airlines

Deal found 11/19

$1,641

Thu 12/49:22 pmPHL - ROB

3 stops50h 13mBritish Airways

Fri 12/195:35 amROB - PHL

3 stops34h 24mBritish Airways

Deal found 11/20

$1,647

Fri 12/57:56 pmPHL - ROB

2 stops27h 39mBritish Airways

Fri 12/195:35 amROB - PHL

3 stops34h 24mBritish Airways

Deal found 11/20

$1,612

One-way flights from Philadelphia to Monrovia
Search for one-way flight options from Philadelphia to Monrovia. Find affordable one-way fares based on user searches. Data last updated November 21, 2025.

Tue 1/133:01 pmPHL - ROB

3 stops25h 14mBrussels Airlines

Deal found 11/19

$779

Mon 1/123:30 pmPHL - ROB

3 stops24h 45mMultiple Airlines

Deal found 11/19

$780

Wed 1/147:45 pmPHL - ROB

3 stops43h 10mMultiple Airlines

Deal found 11/19

$812

Thu 1/155:40 pmPHL - ROB

3 stops22h 35mBrussels Airlines

Deal found 11/19

$820

Sun 1/115:40 pmPHL - ROB

3 stops46h 35mBrussels Airlines

Deal found 11/19

$833

Sat 1/103:30 pmPHL - ROB

3 stops24h 45mMultiple Airlines

Deal found 11/19

$885

Fri 1/1612:06 pmPHL - ROB

2 stops35h 29mMultiple Airlines

Deal found 11/19

$1,032

Wed 1/77:45 pmPHL - ROB

3 stops43h 10mMultiple Airlines

Deal found 11/20

$1,039

Mon 1/53:30 pmPHL - ROB

3 stops32h 05mMultiple Airlines

Deal found 11/19

$1,051

Thu 1/158:34 pmPHL - ROB

2 stops51h 01mMultiple Airlines

Deal found 11/19

$1,080

Mon 1/510:39 amPHL - ROB

2 stops47h 06mEthiopian Air

Deal found 11/19

$1,105

Cheap flight deals from Philadelphia to Monrovia

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,425 (Ovago)
One-way from	$779 (Gurufare)
Popular in	December
Cheapest in	November
Average price	$1,459

Provider with most accurate pricing for Philadelphia-Monrovia Roberts Intl flight deals.

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Provider most trusted by Cheapflights users for Philadelphia-Monrovia Roberts Intl flights.

Search Deals

From Philadelphia to Monrovia Roberts Intl

Search Deals

One-way flight from Philadelphia to Monrovia Roberts Intl

Search Deals

High demand for flights, 3% potential price rise

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Monrovia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Thu 12/4

9:22 pm-4:35 am

3 stops50h 13m

Monrovia Roberts Intl

Tue 3/24

3:05 am-5:15 pm

2 stops42h 10m

$1,442

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Wed 2/25

8:00 pm-2:05 am

2 stops25h 05m

Monrovia Roberts Intl

Sat 2/28

3:05 am-4:15 pm

2 stops42h 10m

$1,456

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Sun 1/18

7:45 pm-9:15 pm

3 stops44h 30m

Monrovia Roberts Intl

Sun 3/29

9:10 pm-2:19 pm

2 stops45h 09m

$1,470

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Fri 1/9

1:10 pm-9:15 pm

3 stops27h 05m

Monrovia Roberts Intl

Sat 1/31

10:45 pm-12:07 pm

2 stops42h 22m

$1,516

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Wed 12/3

3:46 pm-4:35 am

3 stops31h 49m

Monrovia Roberts Intl

Tue 3/24

3:05 am-12:55 pm

3 stops37h 50m

$1,521

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Wed 2/25

8:02 pm-6:45 pm

2 stops41h 43m

Monrovia Roberts Intl

Sun 3/1

10:45 pm-5:14 pm

2 stops23h 29m

$1,540

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Thu 1/8

5:00 pm-9:15 pm

3 stops47h 15m

Monrovia Roberts Intl

Wed 1/21

10:45 pm-12:07 pm

2 stops42h 22m

$1,588

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Mon 1/19

3:01 pm-9:15 pm

3 stops25h 14m

$779

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Tue 1/13

3:01 pm-9:15 pm

3 stops25h 14m

$779

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Fri 1/16

3:30 pm-9:15 pm

3 stops24h 45m

$780

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 18 results

Compare providers for flights from Philadelphia to Monrovia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Monrovia in November.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Ovago	Price Accuracy2 stars	Trust Score*2 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
oojo	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Philadelphia-Monrovia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Monrovia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-Monrovia flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Philadelphia-Monrovia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Monrovia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Monrovia

Have a flexible travel schedule? Discover the best time to fly to Monrovia from Philadelphia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Monrovia

What is the cheapest month to book a flight from Philadelphia to Monrovia?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Monrovia (average of $863). Flying from Philadelphia to Monrovia in July is currently the most expensive (average of $1,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to ROB?

A simple way to save on the total cost of your ticket is to fly from Philadelphia to Monrovia at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Philadelphia to Monrovia?

Reviews of airlines servicing Monrovia

Read reviews from past customers who have flown United Airlines and Brussels Airlines from Philadelphia to Monrovia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,028 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,028 reviews

United Airlines

7.4

Good

9,028 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Brussels Airlines

7.2

Good

370 reviews

United Airlines

7.4

Good

9,028 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Philadelphia to Monrovia?
For as low as $1,470, British Airways can have you in Monrovia from Philadelphia in 44h 30m. The distance between Philadelphia and Monrovia is about 4614 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Philadelphia to Monrovia round-trip?
Our cheapest airline available from Philadelphia to Monrovia is Brussels Airlines. Our recent data shows that you can find tickets from as low as $1,435 on this airline. An additional option worth looking into is United Airlines, starting at $1,582. You may be able to fly from Philadelphia to Monrovia for 13% less than the average price by searching for these airlines.
Can I find deals for flights from Philadelphia to Monrovia that include hotel bookings?
Yes. In addition to deals on Philadelphia to Monrovia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Monrovia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Monrovia.
Can I find deals for business class flights from Philadelphia to Monrovia?
Yes. Cheapflights offers flight deals from Philadelphia to Monrovia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Philadelphia to Monrovia?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Monrovia (average of $863). Flying from Philadelphia to Monrovia in July is currently the most expensive (average of $1,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Philadelphia to Monrovia

John F Kennedy Intl to Monrovia flights

Newark to Monrovia flights

Dulles Intl to Monrovia flights

Reagan-National to Monrovia flights

LaGuardia to Monrovia flights

Top 2 airlines flying from Philadelphia to Monrovia

Airline	Cheapest	Average	Flexibility	On-time
Brussels Airlines	Cheapest$1,435	Average$1,616	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$1,582	Average$1,753	FlexibilityNo cancel fee	On-time69%

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$779+ Cheap flights from Philadelphia (PHL) to Monrovia (ROB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Monrovia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Philadelphia to Monrovia

Cheapest flights from Philadelphia to MonroviaExplore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Explore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Cheap flight deals from Philadelphia to Monrovia

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Monrovia that are best for you.

Compare providers for flights from Philadelphia to Monrovia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Monrovia in November.

Best time to book a flight from Philadelphia to Monrovia

Have a flexible travel schedule? Discover the best time to fly to Monrovia from Philadelphia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Monrovia

What is the cheapest month to book a flight from Philadelphia to Monrovia?

What is the cheapest time of day to fly from PHL to ROB?

How much does it cost to fly round-trip from Philadelphia to Monrovia?

Reviews of airlines servicing Monrovia

Read reviews from past customers who have flown United Airlines and Brussels Airlines from Philadelphia to Monrovia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Monrovia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Philadelphia to Monrovia?

What are the cheapest airlines flying from Philadelphia to Monrovia round-trip?

Can I find deals for flights from Philadelphia to Monrovia that include hotel bookings?

How can I find direct flights from Philadelphia to Monrovia?

Can I find deals for business class flights from Philadelphia to Monrovia?

What is the cheapest month to book a flight from Philadelphia to Monrovia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Monrovia

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Philadelphia to Monrovia

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Cheapest flights from Philadelphia to Monrovia
Explore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.