PHL - ROB

$840 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 1/1. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$1,402
Brussels Airlines
Tue 2/3Tue 3/10
PHL - ROB • 3 stops
Cheapest one-way
$840
Brussels Airlines
Thu 1/1
PHL - ROB • 3 stops
Top airlines
Brussels Airlines
Cheapest • from $1,425 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+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

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 - 7:09 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 - 4:05 pm
ROB
-
PHL
22h 20m2 stops
$1,425Brussels Airlines
Wed, Dec 31 - Thu, Jan 29
British Airways Logo
7:50 pm - 4:35 am
PHL
-
ROB
27h 45m2 stops
British Airways Logo
3:05 am - 4:15 pm
ROB
-
PHL
42h 10m2 stops
$1,444British Airways
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 - 4:05 pm
ROB
-
PHL
22h 20m2 stops
$1,445Brussels 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
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
$1,460Brussels Airlines
Sat, Jan 31 - Tue, Mar 31
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
Wed, Dec 31 - Tue, Jan 27
British Airways Logo
7:50 pm - 4:35 am
PHL
-
ROB
27h 45m2 stops
British Airways Logo
3:05 am - 1:50 pm
ROB
-
PHL
39h 45m2 stops
$1,469British Airways
Sun, Mar 22 - Sun, Apr 12
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
Tue, Mar 3 - Fri, Apr 3
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
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.

Which airlines provide the cheapest flights from Philadelphia to Monrovia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Philadelphia to Monrovia were found on Brussels Airlines ($1,425) and United Airlines ($1,465).

Which airlines fly non-stop between Philadelphia and Monrovia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Philadelphia to Monrovia.

There are 2 airlines that fly nonstop from Philadelphia to Monrovia. They are Brussels Airlines and United Airlines. The cheapest airline for this route is Brussels Airlines, with the best round-trip deal found costing $1,435. On average, the best prices for this route can be found at Brussels Airlines.

Good to know

Low seasonNovember
Cheapest flight$840
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 16% 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 $840 for a one-way ticket and $1,402 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.

  • Which is the best airline for flights from Philadelphia to Monrovia, United Airlines or Brussels Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Monrovia are United Airlines and Brussels Airlines. With an average price for the route of $1,753 and an overall rating of 7.4, United Airlines is the most popular choice. Brussels Airlines is also a great choice for the route, with an average price of $1,633 and an overall rating of 7.2.

  • 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 airlines 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.
7.4
United AirlinesOverall score based on 9094 reviews
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

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

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

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

Information on your arrival and departure airports