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Monrovia

$543+ Cheap flights from Pennsylvania 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ROB
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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Cheap flight deals from Pennsylvania to Monrovia

Keep the following information in mind while searching for Pennsylvania to Monrovia flight deals. Data was last updated November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,088
(Gurufare)

One-way from

$543
(United Airlines)

Popular in

October

Cheapest in

November

Average price

$1,470
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.
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From Pennsylvania to Monrovia Roberts Intl
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One-way flight from Pennsylvania to Monrovia Roberts Intl
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Highest demand for flights based on searches. 2% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Pennsylvania to Monrovia

Cheapest flights from Pennsylvania to Monrovia
Explore the most affordable flight options available from Pennsylvania to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2025.

This CrystalTravel deal was found by Cheapflights users on 11/4. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:15 pmEWR - ROB
2 stops15h 35mEthiopian Air
Mon 11/1011:05 amROB - EWR
2 stops37h 10mEthiopian Air
Deal found 11/4$1,055
This Gurufare deal was found by Cheapflights users on 11/3. 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.
Tue 11/186:55 pmEWR - ROB
2 stops21h 20mBrussels Airlines
Tue 11/2510:45 pmROB - EWR
1 stop19h 45mBrussels Airlines
Deal found 11/3$1,088
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/276:55 pmEWR - ROB
1 stop18h 50mUnited Airlines
Wed 12/1010:45 pmROB - EWR
1 stop19h 45mUnited Airlines
Deal found 11/3$1,090
This oojo deal was found by Cheapflights users on 11/3. 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.
Thu 11/209:15 pmEWR - ROB
2 stops15h 35mMultiple Airlines
Thu 11/2711:05 amROB - EWR
2 stops37h 10mMultiple Airlines
Deal found 11/3$1,092
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:55 amEWR - ROB
3 stops33h 20mMultiple Airlines
Tue 11/2510:45 pmROB - EWR
1 stop19h 45mMultiple Airlines
Deal found 11/3$1,094
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 11/186:00 amEWR - ROB
3 stops34h 15mUnited Airlines
Tue 11/2510:45 pmROB - EWR
1 stop19h 45mUnited Airlines
Deal found 11/4$1,099
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 11/276:55 pmEWR - ROB
1 stop18h 50mUnited Airlines
Tue 12/910:45 pmROB - EWR
2 stops23h 14mUnited Airlines
Deal found 11/5$1,104
This oojo deal was found by Cheapflights users on 11/3. 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 11/198:40 pmIAD - ROB
2 stops16h 10mMultiple Airlines
Mon 11/2411:05 amROB - IAD
2 stops25h 55mMultiple Airlines
Deal found 11/3$1,115
This FlightHub deal was found by Cheapflights users on 11/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:45 pmIAD - ROB
1 stop26h 50mRoyal Air Maroc
Sat 1/243:05 amROB - IAD
1 stop20h 40mRoyal Air Maroc
Deal found 11/5$1,151
This oojo deal was found by Cheapflights users on 11/3. 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.
Sun 11/239:15 pmEWR - ROB
2 stops15h 35mMultiple Airlines
Tue 12/2311:05 amROB - EWR
2 stops25h 55mMultiple Airlines
Deal found 11/3$1,181
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/265:15 pmIAD - ROB
2 stops44h 30mUnited Airlines
Tue 8/189:10 pmROB - IAD
1 stop20h 20mUnited Airlines
Deal found 11/5$1,185
This Gurufare deal was found by Cheapflights users on 11/3. 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 12/39:00 pmJFK - ROB
2 stops40h 45mMultiple Airlines
Wed 12/1010:45 pmROB - JFK
2 stops20h 05mMultiple Airlines
Deal found 11/3$1,190

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Monrovia 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 5, 2025.
Use the filters below to find and compare flights from Pennsylvania to Monrovia that are best for you.

Fly from

Pennsylvania

Fly to

Monrovia

Route

Depart

Return

Price

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Thu 11/27

6:55 pm-6:45 pm

1 stop18h 50m

Monrovia Roberts Intl

Tue 12/9

10:45 pm-1:30 pm

1 stop19h 45m

$1,094

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Tue 3/3

6:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-4:47 pm

2 stops22h 02m

$1,094

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Sat 2/21

6:00 am-9:15 pm

3 stops34h 15m

Monrovia Roberts Intl

Sat 2/28

10:45 pm-1:30 pm

1 stop19h 45m

$1,099

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Thu 1/8

4:29 pm-9:15 pm

3 stops47h 46m

Monrovia Roberts Intl

Wed 2/4

10:45 pm-1:30 pm

1 stop19h 45m

$1,110

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Thu 1/8

7:20 pm-9:15 pm

3 stops44h 55m

Monrovia Roberts Intl

Sat 2/7

10:45 pm-1:30 pm

1 stop19h 45m

$1,110

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Thu 1/8

4:29 pm-9:15 pm

3 stops47h 46m

Monrovia Roberts Intl

Sun 2/8

10:45 pm-1:30 pm

1 stop19h 45m

$1,110

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Fri 2/6

6:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Fri 3/6

8:05 pm-1:30 pm

2 stops22h 25m

$1,144

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Wed 3/18

9:42 pm-6:45 pm

2 stops41h 03m

Monrovia Roberts Intl

Sun 3/22

10:45 pm-10:17 am

2 stops39h 32m

$1,170

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Sat 1/10

5:25 pm-9:15 pm

3 stops22h 50m

Monrovia Roberts Intl

Sat 1/31

10:45 pm-2:35 pm

1 stop20h 50m

$1,186

New YorkMonrovia

JFK - ROB

JFKROB

New York John F Kennedy Intl

Wed 3/18

9:00 pm-2:05 am

1 stop25h 05m

Monrovia Roberts Intl

Sat 3/21

3:05 am-6:55 pm

1 stop19h 50m

$1,242

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Monrovia

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

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

Find hourly flight availability from Pennsylvania to Monrovia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2025.

When flying from Pennsylvania to Monrovia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the evening.

Related info for your journey

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

  • What airport do you fly into for flights to Monrovia from Pennsylvania?

    Monrovia Roberts Intl (ROB), located 30.2 mi from the city center, is the airport you fly into when you book flights from Pennsylvania to Monrovia.

  • How long is the flight from Pennsylvania to Monrovia?

    Airlines like United Airlines, Brussels Airlines, and Royal Air Maroc fly from Pennsylvania to Monrovia in about 18h 50m. The time it takes to get you to your destination can typically vary by up to 6h 15m. Airlines will cover a distance of 4571 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Pennsylvania to Monrovia one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $543. However, be on the lookout for offers from Brussels Airlines and Air Canada, as they are both options that can get you from Pennsylvania to Monrovia for a low price.

  • What are the most popular routes from Pennsylvania to Monrovia?

    Most travelers choose New York John F Kennedy Intl - Monrovia Roberts Intl, Washington, D.C. Dulles Intl - Monrovia Roberts Intl or Washington, D.C. Reagan-National - Monrovia Roberts Intl when deciding on the best route from Pennsylvania to Monrovia.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania 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.

See more FAQs

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Alternative routes for Pennsylvania to Monrovia

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Monrovia flights
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Top 2 airlines flying from Pennsylvania to Monrovia

Discover the top 2 airlines that operate flights from Pennsylvania to Monrovia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$1,435Average$1,616FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,582Average$1,753FlexibilityNo cancel feeOn-time69%

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