HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$1,614+ Cheap flights from Monrovia (ROB) to Philadelphia (PHL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ROB — PHL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Monrovia to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Monrovia to Philadelphia

Cheapest flights from Monrovia to Philadelphia
Explore the most affordable flight options available from Monrovia to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Ovago deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:45 am
ROB
-
PHL
3 stops23h 08m
British Airways
Fri 7/3110:20 pm
PHL
-
ROB
2 stops26h 15m
British Airways
Deal found 1/27$1,614
This Gurufare deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops22h 55m
Brussels Airlines
Thu 7/3010:05 am
PHL
-
ROB
3 stops29h 45m
Brussels Airlines
Deal found 1/27$1,699
This Gurufare deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops22h 55m
Brussels Airlines
Sat 8/110:15 am
PHL
-
ROB
3 stops29h 35m
Brussels Airlines
Deal found 1/27$1,910
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops31h 22m
United Airlines
Mon 8/36:10 am
PHL
-
ROB
3 stops33h 40m
United Airlines
Deal found 1/27$2,003
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops31h 22m
United Airlines
Wed 7/298:00 pm
PHL
-
ROB
3 stops43h 50m
United Airlines
Deal found 1/28$2,005
This Gurufare deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops22h 55m
Multiple Airlines
Thu 7/3010:15 am
PHL
-
ROB
2 stops27h 35m
Multiple Airlines
Deal found 1/27$2,082
This Ovago deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
2 stops22h 55m
Multiple Airlines
Sat 8/12:37 pm
PHL
-
ROB
2 stops23h 13m
Multiple Airlines
Deal found 1/28$2,170
This Brussels Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:10 pm
ROB
-
PHL
3 stops25h 30m
Brussels Airlines
Fri 7/315:40 pm
PHL
-
ROB
3 stops46h 10m
Brussels Airlines
Deal found 1/28$2,286

Find flight deals from Monrovia to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Monrovia (ROB) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,614
(Ovago)
Provider with most accurate pricing for Monrovia Roberts Intl-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Monrovia Roberts Intl-Philadelphia flights.
Search Deals
From Monrovia Roberts Intl to Philadelphia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monrovia to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Monrovia to Philadelphia that are best for you.

Fly from

Monrovia

Fly to

Philadelphia

Route

Depart

Return

Price

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

5:45 am-12:53 am

3 stops23h 08m

Philadelphia

Fri 7/31

10:20 pm-4:35 am

2 stops26h 15m

$1,614

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

9:10 pm-4:05 pm

2 stops22h 55m

Philadelphia

Sat 8/1

10:15 am-7:50 pm

3 stops29h 35m

$1,910

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

9:10 pm-12:32 am

2 stops31h 22m

Philadelphia

Wed 7/29

8:00 pm-7:50 pm

3 stops43h 50m

$2,003

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

9:10 pm-12:32 am

2 stops31h 22m

Philadelphia

Sun 8/2

6:35 pm-7:50 pm

3 stops45h 15m

$2,003

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

9:10 pm-12:32 am

2 stops31h 22m

Philadelphia

Mon 8/3

6:10 am-7:50 pm

3 stops33h 40m

$2,003

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Wed 7/1

9:10 pm-12:32 am

2 stops31h 22m

Philadelphia

Tue 7/28

6:10 am-7:50 pm

3 stops33h 40m

$2,003

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Compare providers for flights from Monrovia to Philadelphia

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 Monrovia to Philadelphia in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust 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 Monrovia-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Monrovia-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Monrovia-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Monrovia-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub 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 Monrovia-Philadelphia 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 Monrovia to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Monrovia 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.

Related info for your journey

Find useful and relevant information for your journey from Monrovia to Philadelphia. 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 Monrovia to Philadelphia?

    Airlines like British Airways, Brussels Airlines, and United Airlines fly from Monrovia to Philadelphia in about 22h 55m. The time it takes to get you to your destination can typically vary by up to 8h 27m. Airlines will cover a distance of 4614 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Monrovia to Philadelphia?

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

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

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

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Newark
Chester

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 Monrovia to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Monrovia to Dulles Intl flights
Monrovia to Newark flights
Monrovia to John F Kennedy Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.