Cheap flights from Philadelphia (PHL) to Monrovia (ROB) from $865

This is the cheapest one-way flight price, found on 6/5. Prices may vary by date and flight preferences.
PHL — ROB
Jun 10 — Jun 171
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.

The best prices from Philadelphia to Monrovia Roberts Intl are usually found in October or May, booked 56 days in advance, depart on a Saturday or Wednesday and return on a Monday

How to find the cheapest flight from Philadelphia (PHL) to Monrovia (ROB)

All the information you need to plan the best PHL to ROB flight in 2023: compare Philadelphia to Monrovia flight prices with the expected peak season, weather and rainfall in Monrovia.

Popular in

June

Cheapest in

October

Round-trip from

$1,123

One-way from

$865
High demand for flights, 21% potential price rise
Best time to find cheap flights, 13% potential price drop
From Philadelphia to Monrovia Roberts Intl
One-way flight from Philadelphia to Monrovia Roberts Intl

PHL - ROB

Price

$1,123 - $2,704

Cheap flights from Philadelphia to Monrovia in June, July 2023

The best prices found for PHL to ROB flights for June, July
Check out some of the best flight deals from Philadelphia to Monrovia in 2023. For more flight deals, be sure to check back very soon.

Philadelphia to Monrovia 2023 flight deals

Cheap flights to Monrovia from Philadelphia found for this year
Check out some of the best flight deals from Philadelphia to Monrovia in 2023. For more flight deals, be sure to check back very soon.

Cheap United Airlines flights from Philadelphia to Monrovia

Take a look at some of the lowest-priced United Airlines flights heading from Philadelphia to Monrovia. Make sure to double check the flight details before booking.

Cheap Brussels Airlines flights from Philadelphia to Monrovia

Some of the lowest-priced Brussels Airlines flights we've found at this time heading from Philadelphia to Monrovia. Deals frequently update to provide users with more options.

Last minute flights from Philadelphia to Monrovia

Late deals on return flights to Monrovia from Philadelphia, departing today and this week
Have a look at some of the flights available from Philadelphia to Monrovia departing last-minute. It's wise to confirm all flight details are correct before booking.

One-way flights to Monrovia from Philadelphia

The cheapest one-way flights from Philadelphia to Monrovia
Take a look at some of the one-way flights we've detected from Philadelphia to Monrovia. Users needing a return flight from Philadelphia to Monrovia should utilize the search form above.

Find flights from Philadelphia to Monrovia within your budget

Use the slider to find flights from Philadelphia to Monrovia that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$1,312 - $2,012

Route

Depart

Return

Price

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Sat 8/19

3 stops33h 20m

Monrovia Roberts Intl

Sun 8/27

2 stops28h 42m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Fri 8/18

3 stops46h 23m

Monrovia Roberts Intl

Tue 8/29

2 stops46h 09m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Fri 8/18

3 stops46h 23m

Monrovia Roberts Intl

Sun 8/27

2 stops28h 42m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Tue 7/18

3 stops33h 20m

Monrovia Roberts Intl

Fri 8/18

2 stops28h 42m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Tue 7/18

3 stops33h 20m

Monrovia Roberts Intl

Fri 8/18

3 stops41h 43m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Fri 7/7

3 stops46h 23m

Monrovia Roberts Intl

Fri 9/8

2 stops28h 40m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Sat 8/19

3 stops21h 35m

Monrovia Roberts Intl

Mon 8/28

2 stops35h 55m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Sat 8/19

3 stops21h 35m

Monrovia Roberts Intl

Tue 8/29

2 stops23h 30m

PhiladelphiaMonrovia Roberts Intl

PHL - ROB

PHLROB

Philadelphia

Tue 7/18

2 stops21h 35m

Monrovia Roberts Intl

Fri 8/18

2 stops23h 30m

Flights are sorted by cheapest first

Deals found on 6/3

Reviews of Airlines Servicing Monrovia

Read reviews from past customers who have flown United Airlines and Brussels Airlines from Philadelphia to Monrovia. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.6
Good
1,558 reviews

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

7.1

Boarding

7.8

Crew

8.2

Reviews

1 / 10

Overseas flight from Brussels to Chicago. After lunch was served, time for “lights out” so we can sleep to help get back on USA central time, 7 hours behind. Guy behind me in Polaris was apparently very entertained by whatever he was watching and would burst out loudly laughing. Of course, this happened just as I was falling asleep. I wish flight attendants would have asked him to keep it down. Also, it would be great if flight attendants weren’t banging around things in the galley, or do as little as possible, banging around. The food was surprisingly good, and I loved the return of the ice cream cart! I looked at the offerings of movies and TV shows and nothing looked good to me. I just tried to sleep. I don’t feel like I got much sleep, though.

United Airlines
7.6
Good
1,558 reviews
United Airlines
7.6
Good
1,558 reviews

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

7.1

Boarding

7.8

Crew

8.2

Reviews

1 / 10

Overseas flight from Brussels to Chicago. After lunch was served, time for “lights out” so we can sleep to help get back on USA central time, 7 hours behind. Guy behind me in Polaris was apparently very entertained by whatever he was watching and would burst out loudly laughing. Of course, this happened just as I was falling asleep. I wish flight attendants would have asked him to keep it down. Also, it would be great if flight attendants weren’t banging around things in the galley, or do as little as possible, banging around. The food was surprisingly good, and I loved the return of the ice cream cart! I looked at the offerings of movies and TV shows and nothing looked good to me. I just tried to sleep. I don’t feel like I got much sleep, though.

Brussels Airlines
6.5
Okay
50 reviews
United Airlines
7.6
Good
1,558 reviews

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

7.1

Boarding

7.8

Crew

8.2

Reviews

1 / 10

Overseas flight from Brussels to Chicago. After lunch was served, time for “lights out” so we can sleep to help get back on USA central time, 7 hours behind. Guy behind me in Polaris was apparently very entertained by whatever he was watching and would burst out loudly laughing. Of course, this happened just as I was falling asleep. I wish flight attendants would have asked him to keep it down. Also, it would be great if flight attendants weren’t banging around things in the galley, or do as little as possible, banging around. The food was surprisingly good, and I loved the return of the ice cream cart! I looked at the offerings of movies and TV shows and nothing looked good to me. I just tried to sleep. I don’t feel like I got much sleep, though.

Related info for your journey

Useful info, stats and facts about Philadelphia to Monrovia flights.

Other flights from Philadelphia

Flights to Monrovia from Philadelphia

Top 2 airlines flying from Philadelphia to Monrovia

The chart below displays the airlines Cheapflights users traveling from Philadelphia to Monrovia choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$1,121Average$1,327FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Brussels AirlinesCheapest$1,191Average$1,287FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Brussels Airlines flights