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Monrovia

$526+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ROB
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,057
(CrystalTravel)

One-way from

$526
(Kiwi.com)

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.
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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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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 0% potential price decrease ($13 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 20, 2025.

This Gotogate deal was found by Cheapflights users on 11/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:45 pmIAD - ROB
1 stop26h 50mRoyal Air Maroc
Fri 12/195:35 amROB - IAD
1 stop18h 10mRoyal Air Maroc
Deal found 11/20$1,075
This Gotogate deal was found by Cheapflights users on 11/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:50 pmIAD - ROB
2 stops16h 00mMultiple Airlines
Thu 12/187:30 amROB - IAD
2 stops16h 35mMultiple Airlines
Deal found 11/18$1,207
This Gurufare deal was found by Cheapflights users on 11/19. 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.
Thu 11/279:15 pmEWR - ROB
2 stops15h 35mEthiopian Air
Tue 12/2311:05 amROB - EWR
2 stops25h 55mEthiopian Air
Deal found 11/19$1,255
This Trip.com deal was found by Cheapflights users on 11/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:50 pmIAD - ROB
1 stop16h 00mEthiopian Air
Thu 12/187:30 amROB - IAD
2 stops16h 35mEthiopian Air
Deal found 11/18$1,258
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:00 pmJFK - ROB
1 stop27h 35mRoyal Air Maroc
Sat 12/205:35 amROB - JFK
1 stop17h 20mRoyal Air Maroc
Deal found 11/19$1,279
This KAYAK deal was found by Cheapflights users on 11/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:00 pmJFK - ROB
1 stop27h 35mRoyal Air Maroc
Sun 12/215:35 amROB - JFK
1 stop17h 20mRoyal Air Maroc
Deal found 11/19$1,280
This oojo deal was found by Cheapflights users on 11/20. 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.
Mon 12/88:00 pmJFK - ROB
1 stop27h 35mRoyal Air Maroc
Thu 1/293:05 amROB - JFK
1 stop19h 50mRoyal Air Maroc
Deal found 11/20$1,300
This Gurufare deal was found by Cheapflights users on 11/19. 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.
Thu 11/279:15 pmEWR - ROB
2 stops15h 35mEthiopian Air
Sun 12/2111:05 amROB - EWR
2 stops25h 55mEthiopian Air
Deal found 11/19$1,300
This Gotogate deal was found by Cheapflights users on 11/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/298:50 pmIAD - ROB
2 stops16h 00mMultiple Airlines
Sat 12/137:30 amROB - IAD
2 stops16h 35mMultiple Airlines
Deal found 11/18$1,300
This oojo deal was found by Cheapflights users on 11/18. 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 11/3010:00 amIAD - ROB
3 stops26h 50mMultiple Airlines
Sat 12/277:30 amROB - IAD
2 stops16h 35mMultiple Airlines
Deal found 11/18$1,312
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:25 pmJFK - ROB
2 stops21h 50mBrussels Airlines
Sat 12/1310:45 pmROB - JFK
1 stop19h 35mBrussels Airlines
Deal found 11/17$1,314
This oojo deal was found by Cheapflights users on 11/18. 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 11/3010:00 amIAD - ROB
3 stops26h 50mEthiopian Air
Sat 12/277:30 amROB - IAD
2 stops16h 35mEthiopian Air
Deal found 11/18$1,318

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 20, 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

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Fri 12/5

8:45 pm-4:35 am

1 stop26h 50m

Monrovia Roberts Intl

Fri 12/19

5:35 am-6:45 pm

1 stop18h 10m

$1,075

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Wed 2/4

8:45 pm-2:05 am

1 stop24h 20m

Monrovia Roberts Intl

Tue 2/24

3:05 am-6:45 pm

1 stop20h 40m

$1,080

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Mon 2/2

5:45 pm-9:15 pm

2 stops22h 30m

Monrovia Roberts Intl

Wed 2/11

10:45 pm-2:35 pm

1 stop20h 50m

$1,094

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Tue 3/3

5:45 pm-9:15 pm

2 stops22h 30m

Monrovia Roberts Intl

Tue 3/17

10:45 pm-3:35 pm

1 stop20h 50m

$1,094

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Fri 2/6

3:30 pm-9:15 pm

3 stops24h 45m

Monrovia Roberts Intl

Fri 3/6

8:05 pm-1:30 pm

2 stops22h 25m

$1,095

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Thu 1/15

6:55 pm-9:15 pm

2 stops21h 20m

Monrovia Roberts Intl

Sat 2/28

10:45 pm-1:30 pm

1 stop19h 45m

$1,095

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Mon 1/12

8:20 am-9:15 pm

3 stops31h 55m

Monrovia Roberts Intl

Wed 2/11

10:45 pm-2:35 pm

1 stop20h 50m

$1,099

NewarkMonrovia

EWR - ROB

EWRROB

Newark

Fri 2/6

6:00 am-9:15 pm

3 stops34h 15m

Monrovia Roberts Intl

Fri 3/6

8:05 pm-12:28 am

3 stops33h 23m

$1,109

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Tue 3/3

1:02 pm-9:15 pm

3 stops27h 13m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-4:25 pm

2 stops21h 40m

$1,109

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

Sun 1/11

10:28 pm-9:15 pm

3 stops41h 47m

Monrovia Roberts Intl

Wed 2/11

10:45 pm-2:35 pm

1 stop20h 50m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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 20, 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.

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

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 Royal Air Maroc, United Airlines, and Brussels Airlines fly from Pennsylvania to Monrovia in about 21h 50m. The time it takes to get you to your destination can typically vary by up to 5h. Airlines will cover a distance of 4550 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 Brussels Airlines, with whom users have recently found tickets for as low as $526. However, be on the lookout for offers from United Airlines and SWISS, 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, Newark - Monrovia Roberts Intl or Washington, D.C. Dulles Intl - 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.
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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 20, 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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