Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Philadelphia to Monrovia from $810

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Monrovia departing on 1/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Philadelphia to Monrovia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Brussels Airlines Logo
3:01 pm - 9:15 pm
PHL
-
ROB
25h 14m3 stops
Brussels Airlines Logo
10:45 pm - 6:09 pm
ROB
-
PHL
24h 24m2 stops
$1,402Brussels Airlines
Mon, Jan 19 - Sat, Mar 7
Brussels Airlines Logo
3:01 pm - 9:15 pm
PHL
-
ROB
25h 14m3 stops
Brussels Airlines Logo
10:45 pm - 6:09 pm
ROB
-
PHL
24h 24m2 stops
$1,408Brussels Airlines
Mon, Jan 19 - Sat, Mar 7
Brussels Airlines Logo
3:01 pm - 9:15 pm
PHL
-
ROB
25h 14m3 stops
Brussels Airlines Logo
10:45 pm - 7:09 pm
ROB
-
PHL
24h 24m2 stops
$1,422Brussels Airlines
Tue, Feb 3 - Tue, Mar 10
Brussels Airlines Logo
3:01 pm - 9:15 pm
PHL
-
ROB
25h 14m3 stops
Brussels Airlines Logo
10:45 pm - 4:05 pm
ROB
-
PHL
22h 20m2 stops
$1,425Brussels Airlines
Mon, Jan 19 - Sat, Mar 7
Brussels Airlines Logo
3:01 pm - 9:15 pm
PHL
-
ROB
25h 14m2 stops
Brussels Airlines Logo
10:45 pm - 4:05 pm
ROB
-
PHL
22h 20m2 stops
$1,447Brussels Airlines
Mon, Jan 19 - Sat, Mar 7
United Airlines Logo
10:30 am - 9:15 pm
PHL
-
ROB
29h 45m3 stops
United Airlines Logo
9:10 pm - 2:19 pm
ROB
-
PHL
45h 09m2 stops
$1,465United Airlines
Sat, Jan 31 - Tue, Mar 31
Brussels Airlines Logo
6:40 pm - 9:15 pm
PHL
-
ROB
46h 35m3 stops
Brussels Airlines Logo
9:10 pm - 4:00 pm
ROB
-
PHL
46h 50m2 stops
$1,478Brussels Airlines
Sun, Mar 22 - Sun, Apr 12
Multiple Airlines Logo
3:30 pm - 9:15 pm
PHL
-
ROB
24h 45m2 stops
Multiple Airlines Logo
9:10 pm - 3:44 pm
ROB
-
PHL
22h 34m2 stops
$1,480Multiple Airlines
Tue, Mar 3 - Fri, Apr 3
Brussels Airlines Logo
5:40 pm - 9:15 pm
PHL
-
ROB
22h 35m3 stops
Brussels Airlines Logo
9:10 pm - 4:00 pm
ROB
-
PHL
22h 50m2 stops
$1,486Brussels Airlines
Tue, Dec 30 - Wed, Apr 1
United Airlines Logo
7:45 pm - 9:15 pm
PHL
-
ROB
44h 30m3 stops
United Airlines Logo
9:10 pm - 9:51 am
ROB
-
PHL
40h 41m2 stops
$1,496United Airlines
Sun, Jan 18 - Sun, Mar 29

Brussels Airlines flights from Philadelphia to Monrovia

Our best Brussels Airlines deals on Philadelphia to Monrovia flight tickets
Brussels Airlines
Jan 19
PHL3:01 pmPhiladelphia
25h 14m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 7
ROB10:45 pmMonrovia Roberts Intl
24h 24m
2 stops
PHL6:09 pmPhiladelphia
$1,402
Find similar
Brussels Airlines
Jan 19
PHL3:01 pmPhiladelphia
25h 14m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 7
ROB10:45 pmMonrovia Roberts Intl
24h 24m
2 stops
PHL6:09 pmPhiladelphia
$1,408
Find similar
Brussels Airlines
Feb 3
PHL3:01 pmPhiladelphia
25h 14m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 10
ROB10:45 pmMonrovia Roberts Intl
24h 24m
2 stops
PHL7:09 pmPhiladelphia
$1,422
Find similar

United Airlines flights from Philadelphia to Monrovia

Our best United Airlines deals on Philadelphia to Monrovia flight tickets
United Airlines
Jan 31
PHL10:30 amPhiladelphia
29h 45m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 31
ROB9:10 pmMonrovia Roberts Intl
45h 09m
2 stops
PHL2:19 pmPhiladelphia
$1,465
Find similar
United Airlines
Jan 18
PHL7:45 pmPhiladelphia
44h 30m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 29
ROB9:10 pmMonrovia Roberts Intl
40h 41m
2 stops
PHL9:51 amPhiladelphia
$1,496
Find similar
United Airlines
Feb 4
PHL7:45 pmPhiladelphia
42h 00m
2 stops
ROB6:45 pmMonrovia Roberts Intl
Feb 8
ROB10:45 pmMonrovia Roberts Intl
23h 49m
2 stops
PHL5:34 pmPhiladelphia
$1,540
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Philadelphia to Monrovia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Mon 1/19

3:01 pm-9:15 pm

3 stops25h 14m

Monrovia Roberts Intl

Sat 3/7

10:45 pm-6:09 pm

2 stops24h 24m

$1,402

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Mon 1/19

3:01 pm-9:15 pm

3 stops25h 14m

Monrovia Roberts Intl

Sat 3/7

10:45 pm-6:09 pm

2 stops24h 24m

$1,408

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Tue 2/3

3:01 pm-9:15 pm

3 stops25h 14m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-7:09 pm

2 stops24h 24m

$1,422

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Mon 1/19

3:01 pm-9:15 pm

3 stops25h 14m

Monrovia Roberts Intl

Sat 3/7

10:45 pm-4:05 pm

2 stops22h 20m

$1,425

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Mon 1/19

3:01 pm-9:15 pm

2 stops25h 14m

Monrovia Roberts Intl

Sat 3/7

10:45 pm-4:05 pm

2 stops22h 20m

$1,447

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Sat 1/31

10:30 am-9:15 pm

3 stops29h 45m

Monrovia Roberts Intl

Tue 3/31

9:10 pm-2:19 pm

2 stops45h 09m

$1,465

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Sun 3/22

6:40 pm-9:15 pm

3 stops46h 35m

Monrovia Roberts Intl

Sun 4/12

9:10 pm-4:00 pm

2 stops46h 50m

$1,478

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Tue 3/3

3:30 pm-9:15 pm

2 stops24h 45m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-3:44 pm

2 stops22h 34m

$1,480

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Tue 12/30

5:40 pm-9:15 pm

3 stops22h 35m

Monrovia Roberts Intl

Wed 4/1

9:10 pm-4:00 pm

2 stops22h 50m

$1,486

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

Sun 1/18

7:45 pm-9:15 pm

3 stops44h 30m

Monrovia Roberts Intl

Sun 3/29

9:10 pm-9:51 am

2 stops40h 41m

$1,496

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Monrovia from

How to get the cheapest flight ticket from Philadelphia to Monrovia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Monrovia?

The cheapest day to depart from Philadelphia to Monrovia is on a Monday when prices can be found for as low as $1,547. On the other hand, Friday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,263.

What is the cheapest time of day to depart on your flight to Monrovia?

The cheapest time of day to fly to Monrovia is at noon when flights can be purchased for as low as $1,561. Try not to purchase tickets in the evening because they tend to be around $1,873. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Philadelphia to Monrovia

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Monrovia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Monrovia (PHL to ROB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Monrovia

Fastest flight time

22h 35m

Direct flights

None
The fastest flight from Philadelphia to Monrovia takes 22h 35m
There are no direct flights from Philadelphia to Monrovia. There are no popular flight routes from Philadelphia to Monrovia.
Search flight deals

  • How far is Philadelphia to Monrovia Roberts Intl by plane?

    There are 4585.2 mi between Philadelphia and Monrovia Roberts Intl. By plane, this route typically takes 22h 35m.

  • When did momondo last update prices for flights from Philadelphia Airport to Monrovia Roberts Intl Airport?

    Prices for flights from Philadelphia Airport to Monrovia Roberts Intl Airport refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Monrovia Roberts Intl Airport?

  • How old do you have to be to fly from Philadelphia Airport to Monrovia Roberts Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Monrovia Roberts Intl Airport.

  • What documentation or ID do you need to fly to Monrovia Roberts Intl Airport?

    The required travel and health documents for your Monrovia Roberts Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Monrovia Roberts Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Philadelphia to Monrovia?

Best airlines flying from Philadelphia to Monrovia

Compare and see reviews for airlines that fly from Philadelphia to Monrovia with momondo
Airline
Rating
Free Cancellation
Price
Brussels AirlinesPriceFrom $1,435Free CancellationRating
7.2
375 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,470Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Monrovia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Monrovia for you.

Can I find flights from Philadelphia to Monrovia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Monrovia from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Philadelphia to Monrovia?

Once all potential Philadelphia to Monrovia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to Monrovia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Monrovia, momondo offers a useful price alert feature which will track prices for flights to Monrovia from Philadelphia and alert you when they change.

An easier way to manage your Monrovia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Liberia

Fly your favorite airline to Monrovia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Brussels Airlines
Royal Air Maroc
Ethiopian Air
United Airlines
Air Côte d’Ivoire
Kenya Airways