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Cheap flights from Philadelphia to Monrovia from $835

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 1/4. 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

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Find the cheapest flights from Philadelphia to Monrovia

Cheap round-trip flights

Multiple Airlines Logo
3:25 pm - 7:50 pmPHL-ROB
24h 25m3 stops
Multiple Airlines Logo
10:45 pm - 2:47 pmROB-PHL
21h 02m2 stops
$1,409Multiple Airlines
Find Deal
lun., oct. 20 - dom., nov. 2
Brussels Airlines Logo
3:00 pm - 7:50 pmPHL-ROB
24h 50m3 stops
Brussels Airlines Logo
9:10 pm - 6:57 pmROB-PHL
25h 47m2 stops
$1,413Brussels Airlines
Find Deal
mar., oct. 7 - mar., oct. 14
Brussels Airlines Logo
3:00 pm - 7:50 pmPHL-ROB
24h 50m3 stops
Brussels Airlines Logo
9:10 pm - 6:57 pmROB-PHL
25h 47m2 stops
$1,427Brussels Airlines
Find Deal
mar., oct. 7 - mié., oct. 15
United Airlines Logo
6:30 am - 7:50 pmPHL-ROB
33h 20m3 stops
United Airlines Logo
9:10 pm - 9:28 pmROB-PHL
28h 18m2 stops
$1,435United Airlines
Find Deal
lun., oct. 6 - mar., oct. 14
United Airlines Logo
7:58 pm - 7:50 pmPHL-ROB
43h 52m3 stops
United Airlines Logo
9:10 pm - 12:45 amROB-PHL
31h 35m2 stops
$1,440United Airlines
Find Deal
dom., oct. 5 - mié., oct. 15
Ethiopian Air Logo
10:32 am - 2:45 pmPHL-ROB
48h 13m2 stops
Ethiopian Air Logo
11:05 am - 12:45 amROB-PHL
41h 40m3 stops
$1,441Ethiopian Air
Find Deal
jue., oct. 16 - jue., oct. 23
British Airways Logo
8:00 pm - 4:35 amPHL-ROB
27h 35m2 stops
British Airways Logo
5:35 am - 9:43 amROB-PHL
32h 08m3 stops
$1,511British Airways
Find Deal
mié., dic. 3 - mié., mar. 25
British Airways Logo
9:33 pm - 4:35 amPHL-ROB
50h 02m3 stops
British Airways Logo
5:35 am - 9:43 amROB-PHL
33h 08m3 stops
$1,522British Airways
Find Deal
mar., dic. 30 - mié., feb. 18
American Airlines Logo
1:35 pm - 4:35 amPHL-ROB
34h 00m2 stops
American Airlines Logo
5:35 am - 12:24 amROB-PHL
23h 49m2 stops
$1,561American Airlines
Find Deal
vie., ene. 2 - mié., feb. 18
American Airlines Logo
6:40 pm - 4:10 amPHL-ROB
53h 30m2 stops
American Airlines Logo
5:35 am - 12:24 amROB-PHL
23h 49m2 stops
$1,571American Airlines
Find Deal
jue., oct. 2 - vie., mar. 6

United Airlines flights from Philadelphia to Monrovia

Our best United Airlines deals on Philadelphia to Monrovia flight tickets
United Airlines
Oct 6
PHL6:30 amPhiladelphia
33h 20m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Oct 14
ROB9:10 pmMonrovia Roberts Intl
28h 18m
2 stops
PHL9:28 pmPhiladelphia
$1,435
Find similar
United Airlines
Oct 5
PHL7:58 pmPhiladelphia
43h 52m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Oct 15
ROB9:10 pmMonrovia Roberts Intl
31h 35m
2 stops
PHL12:45 amPhiladelphia
$1,440
Find similar
United Airlines
Jan 5
PHL8:27 amPhiladelphia
31h 48m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Feb 6
ROB8:05 pmMonrovia Roberts Intl
27h 49m
3 stops
PHL6:54 pmPhiladelphia
$1,459
Find similar

British Airways flights from Philadelphia to Monrovia

Our best British Airways deals on Philadelphia to Monrovia flight tickets
British Airways
Dec 3
PHL8:00 pmPhiladelphia
27h 35m
2 stops
ROB4:35 amMonrovia Roberts Intl
Mar 25
ROB5:35 amMonrovia Roberts Intl
32h 08m
3 stops
PHL9:43 amPhiladelphia
$1,511
Find similar
British Airways
Dec 30
PHL9:33 pmPhiladelphia
50h 02m
3 stops
ROB4:35 amMonrovia Roberts Intl
Feb 18
ROB5:35 amMonrovia Roberts Intl
33h 08m
3 stops
PHL9:43 amPhiladelphia
$1,522
Find similar
British Airways
Jan 5
PHL6:35 pmPhiladelphia
29h 00m
2 stops
ROB4:35 amMonrovia Roberts Intl
Feb 18
ROB5:35 amMonrovia Roberts Intl
33h 08m
3 stops
PHL9:43 amPhiladelphia
$1,537
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 septiembre 17, 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

lun. 10/20

3:25 pm-7:50 pm

3 stops24h 25m

Monrovia Roberts Intl

dom. 11/2

10:45 pm-2:47 pm

2 stops21h 02m

$1,409

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

mar. 10/7

3:00 pm-7:50 pm

3 stops24h 50m

Monrovia Roberts Intl

mar. 10/14

9:10 pm-6:57 pm

2 stops25h 47m

$1,413

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

mar. 10/7

3:00 pm-7:50 pm

3 stops24h 50m

Monrovia Roberts Intl

mié. 10/15

9:10 pm-6:57 pm

2 stops25h 47m

$1,427

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

lun. 10/6

6:30 am-7:50 pm

3 stops33h 20m

Monrovia Roberts Intl

mar. 10/14

9:10 pm-9:28 pm

2 stops28h 18m

$1,435

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

dom. 10/5

7:58 pm-7:50 pm

3 stops43h 52m

Monrovia Roberts Intl

mié. 10/15

9:10 pm-12:45 am

2 stops31h 35m

$1,440

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

jue. 10/16

10:32 am-2:45 pm

2 stops48h 13m

Monrovia Roberts Intl

jue. 10/23

11:05 am-12:45 am

3 stops41h 40m

$1,441

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

mié. 12/3

8:00 pm-4:35 am

2 stops27h 35m

Monrovia Roberts Intl

mié. 3/25

5:35 am-9:43 am

3 stops32h 08m

$1,511

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

mar. 12/30

9:33 pm-4:35 am

3 stops50h 02m

Monrovia Roberts Intl

mié. 2/18

5:35 am-9:43 am

3 stops33h 08m

$1,522

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

vie. 1/2

1:35 pm-4:35 am

2 stops34h 00m

Monrovia Roberts Intl

mié. 2/18

5:35 am-12:24 am

2 stops23h 49m

$1,561

PhiladelphiaMonrovia

PHL - ROB

PHLROB

Philadelphia

jue. 10/2

6:40 pm-4:10 am

2 stops53h 30m

Monrovia Roberts Intl

vie. 3/6

5:35 am-12:24 am

2 stops23h 49m

$1,571

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

Direct flights

None
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 15m.

  • 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 $1,454Free CancellationRating
7.2
359 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,589Free CancellationRating
7.4
8,926 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.

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