PHL - ROB

$955 Find Cheap Flights from Philadelphia to Monrovia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Monrovia departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Monrovia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Monrovia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Monrovia, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,628
Multiple Airlines
Mon 9/28Sun 10/25
PHL - ROB • 2 stops
Cheapest one-way
$955
Multiple Airlines
Wed 5/13
PHL - ROB • 2 stops
Top airlines
Ethiopian Air
Cheapest • from $1,668 (round-trip)
Brussels Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Monrovia. You'll need at least 2 connections.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 100% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Monrovia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Monrovia (PHL-ROB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Monrovia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Monrovia

Mon, Sep 28 - Sun, Oct 25
Multiple Airlines Logo
8:30 pm - 5:50 pm
PHL
-
ROB
41h 20m
2 stops
Multiple Airlines Logo
8:00 am - 9:00 am
ROB
-
PHL
53h 00m
3 stops
$1,628Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
Ethiopian Air Logo
6:15 am - 2:45 pm
PHL
-
ROB
28h 30m
2 stops
Ethiopian Air Logo
11:05 am - 1:51 pm
ROB
-
PHL
31h 46m
3 stops
$1,668Ethiopian Air
Mon, Sep 28 - Sun, Oct 25
Brussels Airlines Logo
5:40 pm - 7:50 pm
PHL
-
ROB
46h 10m
3 stops
Brussels Airlines Logo
10:45 pm - 6:40 pm
ROB
-
PHL
47h 55m
3 stops
$1,927Brussels Airlines
Mon, Jul 6 - Wed, Nov 11
Multiple Airlines Logo
10:05 am - 7:50 pm
PHL
-
ROB
29h 45m
3 stops
Multiple Airlines Logo
10:45 pm - 2:47 pm
ROB
-
PHL
21h 02m
2 stops
$1,947Multiple Airlines
Sat, Jul 4 - Wed, Nov 11
United Airlines Logo
3:10 pm - 7:50 pm
PHL
-
ROB
24h 40m
3 stops
United Airlines Logo
10:45 pm - 5:22 pm
ROB
-
PHL
23h 37m
2 stops
$1,955United Airlines
Mon, Sep 28 - Sun, Oct 25
Multiple Airlines Logo
3:05 pm - 5:50 pm
PHL
-
ROB
22h 45m
2 stops
Multiple Airlines Logo
10:45 pm - 7:18 pm
ROB
-
PHL
24h 33m
2 stops
$1,957Multiple Airlines
Wed, Jul 8 - Tue, Nov 10
United Airlines Logo
7:45 pm - 7:50 pm
PHL
-
ROB
44h 05m
3 stops
United Airlines Logo
10:45 pm - 5:22 pm
ROB
-
PHL
23h 37m
2 stops
$1,961United Airlines
Tue, Oct 13 - Tue, Nov 3
Multiple Airlines Logo
8:30 pm - 4:35 am
PHL
-
ROB
52h 05m
2 stops
Multiple Airlines Logo
7:30 am - 9:00 am
ROB
-
PHL
30h 30m
2 stops
$1,985Multiple Airlines
Sun, Jul 5 - Sun, Nov 8
United Airlines Logo
8:27 pm - 7:50 pm
PHL
-
ROB
43h 23m
3 stops
United Airlines Logo
10:45 pm - 5:22 pm
ROB
-
PHL
23h 37m
2 stops
$1,988United Airlines
Mon, Jul 6 - Wed, Nov 11
Brussels Airlines Logo
5:40 pm - 7:50 pm
PHL
-
ROB
46h 10m
3 stops
Brussels Airlines Logo
10:45 pm - 6:40 pm
ROB
-
PHL
48h 55m
3 stops
$2,031Brussels Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Monrovia flights

Get data-powered insights and trends into flights from Philadelphia to Monrovia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Philadelphia to Monrovia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Monrovia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Monrovia is September, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $1,881 and $1,785 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$955
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Philadelphia to Monrovia

When to book flights from Philadelphia to Monrovia

Are your dates flexible? Find out the best times to travel from Philadelphia to Monrovia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Monrovia

  • What is the cheapest flight from Philadelphia to Monrovia?

    In the last 3 days, the lowest price for a flight from Philadelphia to Monrovia was $955 for a one-way ticket and $1,668 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Monrovia?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Philadelphia and on arrival in Monrovia.

  • Which airports will I be using when flying from Philadelphia to Monrovia?

    Philadelphia and Monrovia are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at Monrovia Roberts Intl.

  • Which aircraft models fly most regularly from Philadelphia to Monrovia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Monrovia?

    Star Alliance is the only airline alliance operating flights between Philadelphia and Monrovia.

  • How does KAYAK find such low prices on flights from Philadelphia to Monrovia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Monrovia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Monrovia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Monrovia from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Monrovia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Monrovia with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and ROB can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Monrovia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Monrovia from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Philadelphia to Monrovia

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Monrovia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Monrovia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Brussels AirlinesOverall score based on 404 reviews
6.3Food
7.0Comfort
7.3Boarding
7.9Crew
6.2Entertainment
Airline reviews

WE didint profit of food , but for the other think all was good

10.0 ExcellentYuri, Apr 2026
FCO - BRU
Read more Brussels Airlines reviews

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Everything you need to know for your flight from Philadelphia to Monrovia

Information on your arrival and departure airports

Philadelphia (PHL)
Monrovia (ROB)