HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Monrovia

$1,636+ Cheap flights from Phoenix 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ROB
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Phoenix 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 Phoenix to Monrovia

Cheapest flights from Phoenix to Monrovia
Explore the most affordable flight options available from Phoenix to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Gurufare deal was found by Cheapflights users on 3/7. 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.
Thu 5/711:47 pm
PHX
-
ROB
2 stops31h 58m
Ethiopian Air
Thu 6/1811:05 am
ROB
-
PHX
3 stops42h 05m
Ethiopian Air
Deal found 3/7$1,636
This Gurufare deal was found by Cheapflights users on 3/7. 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.
Fri 5/1511:47 pm
PHX
-
ROB
2 stops31h 58m
Multiple Airlines
Wed 6/247:30 am
ROB
-
PHX
3 stops43h 16m
Multiple Airlines
Deal found 3/7$1,666
This Gurufare deal was found by Cheapflights users on 3/7. 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.
Thu 5/711:47 pm
PHX
-
ROB
2 stops31h 58m
Multiple Airlines
Fri 6/197:30 am
ROB
-
PHX
3 stops32h 12m
Multiple Airlines
Deal found 3/7$1,735
This Gurufare deal was found by Cheapflights users on 3/7. 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.
Thu 5/711:10 pm
PHX
-
ROB
3 stops35h 40m
Multiple Airlines
Thu 6/1811:05 am
ROB
-
PHX
3 stops42h 05m
Multiple Airlines
Deal found 3/7$1,780
This Gurufare deal was found by Cheapflights users on 3/10. 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.
Thu 7/237:55 am
PHX
-
ROB
3 stops28h 55m
Brussels Airlines
Sun 8/239:10 pm
ROB
-
PHX
2 stops28h 42m
Brussels Airlines
Deal found 3/10$1,792
This Justfly.com deal was found by Cheapflights users on 3/7. 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.
Fri 5/159:20 pm
PHX
-
ROB
2 stops24h 15m
Multiple Airlines
Fri 6/265:45 am
ROB
-
PHX
2 stops46h 52m
Multiple Airlines
Deal found 3/7$1,806
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 9/3011:59 pm
PHX
-
ROB
3 stops36h 51m
United Airlines
Sun 10/49:10 pm
ROB
-
PHX
2 stops29h 45m
United Airlines
Deal found 3/8$1,829

Find flight deals from Phoenix to Monrovia

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 March 11, 2026.

Round-trip from

$1,636
(Gurufare)

Popular in

December

Cheapest in

April

Average price

$1,679
From Phoenix to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix 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 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Phoenix to Monrovia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Thu 5/7

11:47 pm-2:45 pm

2 stops31h 58m

Monrovia Roberts Intl

Fri 6/19

7:30 am-8:42 am

3 stops32h 12m

$1,735
Quickest round-trip

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Thu 7/23

8:50 am-5:50 pm

2 stops26h 00m

Monrovia Roberts Intl

Sun 8/23

9:10 pm-7:42 pm

2 stops29h 32m

$1,907

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Thu 4/9

6:00 am-5:50 pm

3 stops28h 50m

Monrovia Roberts Intl

Thu 4/16

7:30 am-9:07 am

3 stops32h 37m

$1,988

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Fri 5/8

11:47 pm-7:50 pm

3 stops37h 03m

Monrovia Roberts Intl

Tue 6/2

9:10 pm-5:53 pm

2 stops27h 43m

$2,029

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Mon 5/25

3:34 pm-4:35 am

3 stops30h 01m

Monrovia Roberts Intl

Sun 7/5

5:45 am-3:12 pm

3 stops40h 27m

$2,210

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Mon 3/23

10:55 pm-5:40 pm

2 stops35h 45m

Monrovia Roberts Intl

Mon 3/30

6:50 pm-10:50 am

2 stops47h 00m

$2,224

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Thu 4/9

10:55 pm-5:50 pm

2 stops35h 55m

Monrovia Roberts Intl

Thu 4/16

6:50 pm-11:46 pm

2 stops35h 56m

$2,339

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Thu 7/23

11:15 pm-5:50 pm

3 stops35h 35m

Monrovia Roberts Intl

Thu 9/3

6:50 pm-7:42 pm

3 stops55h 52m

$2,363

PhoenixMonrovia

PHX - ROB

PHXROB

Phoenix Sky Harbor Intl

Mon 6/1

10:45 pm-5:50 pm

2 stops36h 05m

Monrovia Roberts Intl

Thu 7/2

6:50 pm-10:58 pm

2 stops35h 08m

$2,442

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first

Best time to book a flight from Phoenix to Monrovia

Have a flexible travel schedule? Discover the best time to fly to Monrovia from Phoenix with our price prediction graph.
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.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Monrovia
No data available for this route at this time. Please check back soon.

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 March 11, 2026.
See what other customers who have flown with Brussels Airlines from Phoenix to Monrovia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Brussels Airlines
7.2
Good
389 reviews

Boarding

7.3

Crew

7.9

Food

6.3

Comfort

7.0

Entertainment

6.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine
Brussels Airlines
7.2
Good
389 reviews
Brussels Airlines
7.2
Good
389 reviews

Boarding

7.3

Crew

7.9

Food

6.3

Comfort

7.0

Entertainment

6.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Monrovia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Monrovia from Phoenix?

    Most people fly into Monrovia Roberts Intl (ROB) if they book a flight to Monrovia from Phoenix. On average, Roberts Intl has 0 inbound flights from Phoenix per day from 1 airline. Monrovia Roberts Intl is conveniently located just 30.2 mi from Monrovia’s city center.

  • How long is the flight from Phoenix to Monrovia?

    Departing from Phoenix to Monrovia will take you 37h 03m. The distance from Phoenix to Monrovia is about 6640 mi.

  • What is the cheapest airline to fly from Phoenix to Monrovia round-trip?

    Our cheapest airline available from Phoenix to Monrovia is Brussels Airlines. Our recent data shows that you can find tickets from as low as $1,203 on this airline. This flight start at 32% lower than the current average price 3 months from now.

  • Can I find deals for flights from Phoenix to Monrovia that include hotel bookings?

    Yes. In addition to deals on Phoenix to Monrovia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Monrovia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Monrovia.

  • Can I find deals for business class flights from Phoenix to Monrovia?

    Yes. Cheapflights offers flight deals from Phoenix to Monrovia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights from Phoenix to Monrovia by cabin class

Find flights from Phoenix to Monrovia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Premium Economy Class
Economy Class

Top airline flying from Phoenix to Monrovia

Discover the top airline that operate flights from Phoenix 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 2,558,603 searches. Data last updated March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$1,203Average$1,770FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.