$984+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ROB
Oct 18 — Oct 251
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 September 18, 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 September 18, 2026.
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:30 pm -
3 stops42h 00m
Thu 10/227:30 am -
3 stops35h 00m
Deal found 9/16![Multiple Airlines logo]()
$1,593
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:30 pm -
2 stops40h 20m
Thu 10/227:30 am -
3 stops35h 00m
Deal found 9/15![Multiple Airlines logo]()
$1,677
This BusinessClass deal was found by Cheapflights users on 9/13. 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.
Mon 9/143:05 pm -
3 stops22h 45m
Mon 9/2111:00 am -
3 stops50h 43m
Deal found 9/13![Multiple Airlines logo]()
$1,746
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:05 pm -
2 stops22h 45m
Mon 9/217:30 am -
2 stops30h 13m
Deal found 9/13![Ethiopian Air logo]()
$1,764
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:15 am -
2 stops31h 35m
Thu 10/2211:00 am -
3 stops31h 20m
Deal found 9/15![Ethiopian Air logo]()
$1,870
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/291:16 pm -
3 stops27h 59m
Thu 11/58:20 pm -
3 stops32h 10m
Deal found 9/14![United Airlines logo]()
$1,880
This Ovago deal was found by Cheapflights users on 9/17. 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 12/15:40 pm -
3 stops22h 35m
Thu 12/318:20 pm -
3 stops23h 24m
Deal found 9/17![Brussels Airlines logo]()
$1,909
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 September 18, 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 September 18, 2026.
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:30 pm -
3 stops42h 00m
Thu 10/227:30 am -
3 stops35h 00m
Deal found 9/16![Multiple Airlines logo]()
$1,593
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:15 am -
2 stops31h 35m
Thu 10/2211:00 am -
3 stops31h 20m
Deal found 9/15![Ethiopian Air logo]()
$1,870
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/291:16 pm -
3 stops27h 59m
Thu 11/58:20 pm -
3 stops32h 10m
Deal found 9/14![United Airlines logo]()
$1,880
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/54:59 pm -
2 stops45h 01m
Thu 1/2810:45 pm -
2 stops27h 48m
Deal found 9/15![Multiple Airlines logo]()
$1,997
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:40 am -
3 stops27h 10m
Thu 10/2211:00 am -
3 stops31h 20m
Deal found 9/17![Ethiopian Air logo]()
$2,076
This KAYAK deal was found by Cheapflights users on 9/16. 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 12/110:25 am -
2 stops26h 25m
Thu 12/318:20 pm -
3 stops23h 24m
Deal found 9/16![Multiple Airlines logo]()
$2,058
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:58 pm -
2 stops40h 47m
Wed 5/127:30 am -
2 stops29h 54m
Deal found 9/14![Ethiopian Air logo]()
$2,117
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:40 pm -
3 stops41h 10m
Sun 12/2011:05 am -
3 stops32h 08m
Deal found 9/13![Ethiopian Air logo]()
$2,118
This Qatar Airways deal was found by Cheapflights users on 9/16. 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 11/278:45 pm -
2 stops48h 40m
Sun 12/205:40 am -
2 stops38h 10m
Deal found 9/16![Multiple Airlines logo]()
$2,264
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2810:37 am -
2 stops26h 13m
Mon 1/1811:05 am -
3 stops31h 46m
Deal found 9/13![Ethiopian Air logo]()
$2,318
Last-minute flights from Philadelphia to MonroviaDiscover last-minute flight deals from Philadelphia to Monrovia. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Monrovia. Data last updated September 18, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:05 am -
3 stops29h 45m
Sun 10/119:10 pm -
2 stops29h 36m
Deal found 9/15![Multiple Airlines logo]()
$1,976
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:15 am -
3 stops31h 35m
Sun 10/1111:00 am -
3 stops31h 20m
Deal found 9/15![Ethiopian Air logo]()
$2,112
This BusinessClass deal was found by Cheapflights users on 9/15. 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.
Thu 10/17:30 pm -
2 stops39h 15m
Sat 10/317:30 am -
3 stops19h 55m
Deal found 9/15![Multiple Airlines logo]()
$2,014
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:30 pm -
2 stops39h 15m
Sat 10/317:30 am -
2 stops19h 55m
Deal found 9/15![Ethiopian Air logo]()
$2,106
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:30 pm -
2 stops40h 20m
Thu 10/227:30 am -
3 stops35h 00m
Deal found 9/15![Multiple Airlines logo]()
$1,677
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:40 am -
3 stops27h 10m
Thu 10/2211:00 am -
3 stops31h 20m
Deal found 9/17![Ethiopian Air logo]()
$2,076
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:30 pm -
3 stops42h 00m
Thu 10/227:30 am -
3 stops35h 00m
Deal found 9/16![Multiple Airlines logo]()
$1,593
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:15 am -
2 stops31h 35m
Thu 10/2211:00 am -
3 stops31h 20m
Deal found 9/15![Ethiopian Air logo]()
$1,870
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/291:16 pm -
3 stops27h 59m
Thu 11/58:20 pm -
3 stops32h 10m
Deal found 9/14![United Airlines logo]()
$1,880
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 September 18, 2026.
Search for one-way flight options from Philadelphia to Monrovia. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Gurufare deal was found by Cheapflights users on 9/13. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:15 am -
3 stops33h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Brussels Airlines logo]()
$984
This BusinessClass deal was found by Cheapflights users on 9/13. 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.
Wed 9/306:55 pm -
3 stops44h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Brussels Airlines logo]()
$999
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 9/304:42 pm -
2 stops31h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$1,033
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 11/69:09 pm -
2 stops36h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$1,063
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:10 am -
2 stops28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Ethiopian Air logo]()
$1,064
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 September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,593 (FlightHub) |
One-way from | $984 (Gurufare) |
Popular in | July |
Cheapest in | February |
Average price | $1,788 |
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 September 18, 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
Sat 10/3
6:15 am-7:50 pm
3 stops33h 35m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$984
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Fri 11/6
9:09 pm-2:45 pm
2 stops36h 36m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$1,063
Quickest round-trip
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Sat 10/3
6:10 am-2:45 pm
2 stops28h 35m
Monrovia Roberts Intl
Wed 12/31
12:00 am-7:44 pm
Nonstop0h 00m
$1,064
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Wed 10/7
9:30 pm-7:30 pm
3 stops42h 00m
Monrovia Roberts Intl
Thu 10/22
7:30 am-2:30 pm
3 stops35h 00m
$1,593
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Wed 10/7
6:15 am-5:50 pm
2 stops31h 35m
Monrovia Roberts Intl
Thu 10/22
11:00 am-2:20 pm
3 stops31h 20m
$1,870
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Thu 10/29
1:16 pm-9:15 pm
3 stops27h 59m
Monrovia Roberts Intl
Thu 11/5
8:20 pm-11:30 pm
3 stops32h 10m
$1,880
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 1/5
4:59 pm-7:00 pm
2 stops45h 01m
Monrovia Roberts Intl
Thu 1/28
10:45 pm-9:33 pm
2 stops27h 48m
$1,997
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Tue 12/1
10:25 am-5:50 pm
2 stops26h 25m
Monrovia Roberts Intl
Thu 12/31
8:20 pm-2:44 pm
3 stops23h 24m
$2,058
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Mon 10/5
10:40 am-5:50 pm
3 stops27h 10m
Monrovia Roberts Intl
Thu 10/22
11:00 am-2:20 pm
3 stops31h 20m
$2,076
PhiladelphiaMonrovia
PHL Philadelphia - ROB Monrovia Roberts Intl
PHLROB
Philadelphia
Thu 12/24
4:58 pm-2:45 pm
2 stops40h 47m
Monrovia Roberts Intl
Wed 5/12
7:30 am-9:24 am
2 stops29h 54m
$2,117
Showing 1-10 of 13 resultsSorted 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 September.
| 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 September 18, 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.
Boarding
7.4
Crew
7.9
Comfort
7.0
Food
6.3
Overall
7.2
Entertainment
6.2
Reviews
1 / 20
8.0
ExcellentCourtney,Jul 2026
MXP - YUL
Boarding
7.4
Crew
7.9
Comfort
7.0
Food
6.3
Overall
7.2
Entertainment
6.2
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 September 18, 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 September 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 September 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,398 | Average$1,788 | FlexibilityNo cancel fee | On-timeN/A |