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Monrovia

$567+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ROB
jun. 23 — jun. 301
lun. 6/23
lun. 6/30
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 junio 18, 2025.

Round-trip from

$838
(CrystalTravel)

One-way from

$598
(KAYAK)

Popular in

August

Cheapest in

January

Average price

$1,813
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. 3% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 18, 2025.

This CrystalTravel deal was found by Cheapflights users on 6/17. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/135:35 pmEWR - ROB
2 stops22h 15mBrussels Airlines
vie. 10/318:05 pmROB - EWR
2 stops21h 25mBrussels Airlines
Deal found 6/17$838
This Gotogate deal was found by Cheapflights users on 6/18. 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.
mar. 9/910:25 amEWR - ROB
3 stops29h 25mMultiple Airlines
mié. 9/249:10 pmROB - EWR
2 stops21h 33mMultiple Airlines
Deal found 6/18$871
This United Airlines deal was found by Cheapflights users on 6/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/96:40 pmEWR - ROB
2 stops21h 10mUnited Airlines
mié. 9/249:10 pmROB - EWR
1 stop18h 05mUnited Airlines
Deal found 6/18$895
This United Airlines deal was found by Cheapflights users on 6/16. 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.
mar. 9/95:45 pmIAD - ROB
2 stops22h 05mUnited Airlines
vie. 9/199:10 pmROB - IAD
1 stop20h 20mUnited Airlines
Deal found 6/16$895
This United deal was found by Cheapflights users on 6/18. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1010:35 pmIAD - ROB
3 stops41h 15mMultiple Airlines
vie. 10/249:10 pmROB - IAD
1 stop21h 15mMultiple Airlines
Deal found 6/18$905
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/241:00 pmDCA - ROB
3 stops27h 10mUnited Airlines
sáb. 4/119:10 pmROB - DCA
2 stops29h 06mUnited Airlines
Deal found 6/17$910
This SWISS deal was found by Cheapflights users on 6/17. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/68:45 pmIAD - ROB
3 stops43h 25mSWISS
mar. 11/1110:35 pmROB - IAD
2 stops45h 55mSWISS
Deal found 6/17$934
This Gurufare deal was found by Cheapflights users on 6/16. 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.
mar. 9/95:45 pmIAD - ROB
1 stop22h 05mBrussels Airlines
vie. 9/199:10 pmROB - IAD
1 stop20h 20mBrussels Airlines
Deal found 6/16$939
This oojo deal was found by Cheapflights users on 6/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/410:55 amIAD - ROB
1 stop23h 50mEthiopian Air
lun. 11/2411:05 amROB - IAD
2 stops25h 55mEthiopian Air
Deal found 6/17$1,079
This SWISS deal was found by Cheapflights users on 6/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/246:40 pmEWR - ROB
3 stops45h 30mSWISS
mié. 4/89:10 pmROB - EWR
2 stops27h 00mSWISS
Deal found 6/16$1,104
This Justfly.com deal was found by Cheapflights users on 6/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2810:00 amEWR - ROB
1 stop23h 45mEthiopian Air
jue. 4/911:05 amROB - EWR
2 stops25h 50mEthiopian Air
Deal found 6/16$1,264
This Booking.com deal was found by Cheapflights users on 6/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/49:00 amJFK - ROB
3 stops30h 50mMultiple Airlines
jue. 9/116:40 pmROB - JFK
2 stops40h 55mMultiple Airlines
Deal found 6/18$1,333

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 junio 18, 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

sáb. 9/13

5:35 pm-7:50 pm

2 stops22h 15m

Monrovia Roberts Intl

vie. 10/31

8:05 pm-1:30 pm

2 stops21h 25m

$838

NewarkMonrovia

EWR - ROB

EWRROB

Newark

mar. 9/9

10:25 am-7:50 pm

3 stops29h 25m

Monrovia Roberts Intl

mié. 9/24

9:10 pm-2:43 pm

2 stops21h 33m

$871

NewarkMonrovia

EWR - ROB

EWRROB

Newark

mar. 9/9

6:40 pm-7:50 pm

2 stops21h 10m

Monrovia Roberts Intl

mié. 9/24

9:10 pm-11:15 am

1 stop18h 05m

$895

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

mar. 9/9

5:45 pm-7:50 pm

2 stops22h 05m

Monrovia Roberts Intl

vie. 9/19

9:10 pm-1:30 pm

1 stop20h 20m

$895

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

vie. 10/10

10:35 pm-7:50 pm

3 stops41h 15m

Monrovia Roberts Intl

vie. 10/24

9:10 pm-2:25 pm

1 stop21h 15m

$905

Washington, D.C.Monrovia

DCA - ROB

DCAROB

Washington, D.C. Reagan-National

lun. 11/24

1:00 pm-9:10 pm

3 stops27h 10m

Monrovia Roberts Intl

sáb. 4/11

9:10 pm-10:16 pm

2 stops29h 06m

$910

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

jue. 11/6

8:45 pm-9:10 pm

3 stops43h 25m

Monrovia Roberts Intl

mar. 11/11

10:35 pm-3:30 pm

2 stops45h 55m

$934

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

mar. 9/9

5:45 pm-7:50 pm

1 stop22h 05m

Monrovia Roberts Intl

vie. 9/19

9:10 pm-1:30 pm

1 stop20h 20m

$939

Washington, D.C.Monrovia

IAD - ROB

IADROB

Washington, D.C. Dulles Intl

sáb. 10/4

10:55 am-2:45 pm

1 stop23h 50m

Monrovia Roberts Intl

lun. 11/24

11:05 am-8:00 am

2 stops25h 55m

$1,079

NewarkMonrovia

EWR - ROB

EWRROB

Newark

lun. 11/24

6:40 pm-9:10 pm

3 stops45h 30m

Monrovia Roberts Intl

mié. 4/8

9:10 pm-8:10 pm

2 stops27h 00m

$1,104

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 54 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 junio 18, 2025.

When flying from Pennsylvania to Monrovia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Monrovia

Get insights into the airlines that provide service to Monrovia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Monrovia. Reviews last updated junio 18, 2025.
See what other customers who have flown with SWISS, Brussels Airlines and United Airlines from Pennsylvania to Monrovia have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
SWISS
7.5
Good
1,632 reviews
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
Brussels Airlines
7.4
Good
355 reviews
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
United Airlines
7.4
Good
8,810 reviews
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
American Airlines
7.2
Good
10,000 reviews
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.
Ethiopian Air
7.2
Good
781 reviews
SWISS
7.5
Good
1,632 reviews

Comfort

7.4

Crew

8.2

Entertainment

6.7

Overall

7.5

Food

7.0

Boarding

7.6

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

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.

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

    The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $598. However, be on the lookout for offers from Air Canada and Brussels Airlines, 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.

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

    Currently, September is the cheapest month in which you can book a flight from Pennsylvania to Monrovia (average of $1,197). Flying from Pennsylvania to Monrovia in May is currently the most expensive (average of $1,858). 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

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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 junio 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$1,489Average$1,585FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,589Average$1,753FlexibilityNo cancel feeOn-time69%

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