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$961+ Cheap flights from Monrovia (ROB) to Philadelphia (PHL)

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
ROB — PHL
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Cheap 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 November 17, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,570
(Air Canada)

One-way from

$961
(Kiwi.com)
Provider with most accurate pricing for Monrovia Roberts Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Monrovia Roberts Intl-Philadelphia flights.
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From Monrovia Roberts Intl to Philadelphia
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One-way flight from Monrovia Roberts Intl to Philadelphia
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Find 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 November 17, 2025.

This Air Canada deal was found by Cheapflights users on 11/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:45 pmROB - PHL
2 stops21h 05mMultiple Airlines
Fri 1/163:30 pmPHL - ROB
3 stops24h 45mMultiple Airlines
Deal found 11/15$1,570
This oojo deal was found by Cheapflights users on 11/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:30 amROB - PHL
3 stops54h 35mMultiple Airlines
Sun 11/237:30 pmPHL - ROB
3 stops41h 20mMultiple Airlines
Deal found 11/15$2,787
This United Airlines deal was found by Cheapflights users on 11/15. 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 11/1910:45 pmROB - PHL
2 stops29h 18mUnited Airlines
Sun 11/238:00 pmPHL - ROB
3 stops44h 15mUnited Airlines
Deal found 11/15$6,824

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 November 17, 2025.
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

Tue 12/2

10:45 pm-2:50 pm

2 stops21h 05m

Philadelphia

Fri 1/16

3:30 pm-9:15 pm

3 stops24h 45m

$1,570

MonroviaPhiladelphia

ROB - PHL

ROBPHL

Monrovia Roberts Intl

Sun 4/5

5:45 am-12:42 am

2 stops22h 57m

$961

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust 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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Monrovia-Philadelphia flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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.

  • 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.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
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Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
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Chester
Exton

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Alternative routes for Monrovia to Philadelphia

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