$882+ Cheap flights from Philadelphia (PHL) to Monrovia (ROB)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ROB
Nov 5 — Nov 121
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Monrovia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Monrovia
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Best
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One-way
Cheapest flights from Philadelphia to MonroviaExplore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2026.
Explore the most affordable flight options available from Philadelphia to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2026.
This Justfly.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:45 pm -
3 stops41h 45m
Mon 11/97:30 am -
2 stops36h 20m
Deal found 10/1![Multiple Airlines logo]()
$1,590
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:40 pm -
2 stops39h 05m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Multiple Airlines logo]()
$1,757
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops27h 45m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Ethiopian Air logo]()
$1,769
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops27h 45m
Tue 11/1011:05 am -
3 stops41h 26m
Deal found 10/1![Ethiopian Air logo]()
$1,771
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am -
2 stops28h 45m
Thu 11/1211:05 am -
3 stops41h 25m
Deal found 10/1![Ethiopian Air logo]()
$1,795
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:40 pm -
2 stops39h 05m
Thu 11/1211:05 am -
3 stops41h 25m
Deal found 10/1![Ethiopian Air logo]()
$1,803
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops28h 45m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Ethiopian Air logo]()
$1,814
This Ovago deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:40 pm -
2 stops38h 05m
Tue 12/2211:05 am -
3 stops32h 08m
Deal found 10/1![Ethiopian Air logo]()
$1,825
This Ovago deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
2 stops27h 45m
Thu 12/1711:05 am -
3 stops32h 08m
Deal found 10/5![Ethiopian Air logo]()
$1,840
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:25 pm -
3 stops24h 25m
Wed 7/219:10 pm -
2 stops21h 27m
Deal found 10/1![Brussels Airlines logo]()
$1,843
Best flights from Philadelphia to MonroviaDiscover carefully curated flight deals from Philadelphia to Monrovia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
Discover carefully curated flight deals from Philadelphia to Monrovia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
This KAYAK deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/123:05 pm -
3 stops25h 10m
Thu 3/188:20 pm -
3 stops30h 48m
Deal found 10/4![Multiple Airlines logo]()
$1,816
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/910:25 am -
3 stops29h 50m
Sun 3/2110:45 pm -
2 stops23h 55m
Deal found 10/5![United Airlines logo]()
$1,858
This Brussels Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:40 pm -
3 stops22h 35m
Tue 11/2410:45 pm -
3 stops49h 06m
Deal found 10/1![Brussels Airlines logo]()
$1,938
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
3 stops35h 15m
Fri 11/1310:45 pm -
2 stops29h 40m
Deal found 10/1![United Airlines logo]()
$1,899
This Ovago deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:30 pm -
3 stops44h 20m
Fri 11/1310:45 pm -
2 stops20h 59m
Deal found 10/3![Brussels Airlines logo]()
$1,947
This Qatar Airways deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:45 pm -
2 stops48h 40m
Thu 11/123:25 am -
2 stops40h 25m
Deal found 10/3![Multiple Airlines logo]()
$2,020
This United Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:40 pm -
2 stops43h 20m
Tue 11/1010:45 pm -
2 stops29h 26m
Deal found 10/1![United Airlines logo]()
$1,904
Last-minute flights from Philadelphia to MonroviaDiscover last-minute flight deals from Philadelphia to Monrovia. Data last updated October 6, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Monrovia. Data last updated October 6, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:25 pm -
3 stops24h 25m
Wed 7/219:10 pm -
2 stops21h 27m
Deal found 10/1![Brussels Airlines logo]()
$1,843
This Justfly.com deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:45 pm -
3 stops41h 45m
Mon 11/97:30 am -
2 stops36h 20m
Deal found 10/1![Multiple Airlines logo]()
$1,590
This Ovago deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 am -
3 stops31h 30m
Fri 11/1310:45 pm -
2 stops20h 59m
Deal found 10/1![Brussels Airlines logo]()
$1,845
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:40 pm -
2 stops39h 05m
Thu 11/1211:05 am -
3 stops41h 25m
Deal found 10/1![Ethiopian Air logo]()
$1,803
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops28h 45m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Ethiopian Air logo]()
$1,814
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:40 pm -
2 stops39h 05m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Multiple Airlines logo]()
$1,757
This BusinessClass deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am -
2 stops28h 45m
Thu 11/1211:05 am -
3 stops41h 25m
Deal found 10/1![Ethiopian Air logo]()
$1,795
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops27h 45m
Sat 11/147:30 am -
3 stops20h 55m
Deal found 10/1![Ethiopian Air logo]()
$1,769
This KAYAK deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
2 stops27h 45m
Tue 11/1011:05 am -
3 stops41h 26m
Deal found 10/1![Ethiopian Air logo]()
$1,771
This Ovago deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:40 pm -
2 stops38h 05m
Tue 12/2211:05 am -
3 stops32h 08m
Deal found 10/1![Ethiopian Air logo]()
$1,825
One-way flights from Philadelphia to MonroviaSearch for one-way flight options from Philadelphia to Monrovia. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
Search for one-way flight options from Philadelphia to Monrovia. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:40 pm -
3 stops51h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$882
This Kiwi.com deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:40 pm -
3 stops51h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Multiple Airlines logo]()
$988
This KAYAK deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
2 stops27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Ethiopian Air logo]()
$1,068
Find flight deals from Philadelphia to Monrovia
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Monrovia (ROB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,590 (Justfly.com) |
One-way from | $882 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,632 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 6, 2026.
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
Cheapest round-trip
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 11/10
5:40 pm-2:25 am
3 stops51h 45m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$882
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 12/1
5:40 pm-2:25 am
3 stops51h 45m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$988
Quickest round-trip
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 12/1
6:00 am-2:45 pm
2 stops27h 45m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$1,068
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 1/12
3:05 pm-9:15 pm
3 stops25h 10m
Monrovia Roberts Intl
Thu 3/18
8:20 pm-11:08 pm
3 stops30h 48m
$1,816
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Sat 1/9
10:25 am-9:15 pm
3 stops29h 50m
Monrovia Roberts Intl
Sun 3/21
10:45 pm-6:40 pm
2 stops23h 55m
$1,858
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Thu 10/29
6:00 am-9:15 pm
3 stops35h 15m
Monrovia Roberts Intl
Fri 11/13
10:45 pm-11:25 pm
2 stops29h 40m
$1,899
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 10/27
7:40 pm-7:00 pm
2 stops43h 20m
Monrovia Roberts Intl
Tue 11/10
10:45 pm-11:11 pm
2 stops29h 26m
$1,904
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Thu 10/29
6:40 pm-9:15 pm
3 stops22h 35m
Monrovia Roberts Intl
Tue 11/24
10:45 pm-6:51 pm
3 stops49h 06m
$1,938
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Fri 10/16
7:30 pm-7:50 pm
3 stops44h 20m
Monrovia Roberts Intl
Fri 11/13
10:45 pm-2:44 pm
2 stops20h 59m
$1,947
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Fri 10/30
9:45 pm-2:25 am
2 stops48h 40m
Monrovia Roberts Intl
Thu 11/12
3:25 am-2:50 pm
2 stops40h 25m
$2,020
Sorted by cheapest first
Compare providers for flights from Philadelphia to Monrovia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Monrovia in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-Monrovia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Monrovia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Monrovia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Monrovia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Monrovia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Monrovia
Have a flexible travel schedule? Discover the best time to fly to Monrovia from Philadelphia with our price prediction graph.
PHL-ROB
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Monrovia
Get insights into the airlines that provide service to Monrovia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Monrovia. Reviews last updated October 6, 2026.
Read reviews from past customers who have flown Brussels Airlines from Philadelphia to Monrovia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.0
Overall
7.3
Boarding
7.4
Crew
7.9
Entertainment
6.2
Food
6.4
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Comfort
7.0
Overall
7.3
Boarding
7.4
Crew
7.9
Entertainment
6.2
Food
6.4
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Monrovia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Philadelphia and Monrovia flights
Browse other Philadelphia and Monrovia flight options. Last updated on October 6, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on October 6, 2026.
Popular flight searches
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Top airline flying from Philadelphia to Monrovia
Discover the top airline that operate flights from Philadelphia to Monrovia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,398 | Average$1,788 | FlexibilityNo cancel fee | On-timeN/A |