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Monrovia

$1,327+ Cheap flights from Boston (BOS) 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROB
Jan 6 — Jan 131
Tue 1/6
Tue 1/13
1 adult, Economy
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Find cheap flights from Boston to Monrovia with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boston Logan Intl to Monrovia Roberts Intl are usually found in August or November, booked 41 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Boston to Monrovia

Cheapest flights from Boston to Monrovia
Explore the most affordable flight options available from Boston to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 7, 2025.

This CheapOair deal was found by Cheapflights users on 12/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:07 pmBOS - ROB
2 stops27h 28mMultiple Airlines
Fri 1/165:35 amROB - BOS
2 stops35h 38mMultiple Airlines
Deal found 12/4$1,833
This Ovago deal was found by Cheapflights users on 12/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:20 pmBOS - ROB
3 stops47h 55mBrussels Airlines
Tue 1/1310:45 pmROB - BOS
2 stops25h 12mBrussels Airlines
Deal found 12/7$1,835
This oojo deal was found by Cheapflights users on 12/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:07 pmBOS - ROB
3 stops40h 43mEthiopian Air
Fri 1/167:30 amROB - BOS
3 stops29h 27mEthiopian Air
Deal found 12/4$1,852
This Ovago deal was found by Cheapflights users on 12/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:40 pmBOS - ROB
3 stops43h 35mBrussels Airlines
Fri 1/1610:45 pmROB - BOS
2 stops25h 12mBrussels Airlines
Deal found 12/4$1,853
This KAYAK deal was found by Cheapflights users on 12/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:40 pmBOS - ROB
3 stops43h 35mBrussels Airlines
Tue 12/3010:45 pmROB - BOS
2 stops43h 40mBrussels Airlines
Deal found 12/5$1,939
This oojo deal was found by Cheapflights users on 12/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:07 pmBOS - ROB
3 stops61h 38mEthiopian Air
Tue 1/137:30 amROB - BOS
3 stops21h 43mEthiopian Air
Deal found 12/7$1,987
This FlightHub deal was found by Cheapflights users on 12/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:15 amBOS - ROB
2 stops27h 30mMultiple Airlines
Tue 1/137:30 amROB - BOS
3 stops29h 27mMultiple Airlines
Deal found 12/5$2,062
This CheapOair deal was found by Cheapflights users on 12/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:07 pmBOS - ROB
2 stops51h 28mMultiple Airlines
Sun 1/115:35 amROB - BOS
2 stops31h 22mMultiple Airlines
Deal found 12/5$2,276

Find flight deals from Boston to Monrovia

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 December 7, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,327
(Gurufare)

Popular in

December

Cheapest in

August

Average price

$1,899
Provider with most accurate pricing for Boston Logan Intl-Monrovia Roberts Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Monrovia Roberts Intl flights.
Search Deals
From Boston Logan Intl to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 December 7, 2025.
Use the filters below to find and compare flights from Boston to Monrovia that are best for you.

Fly from

Boston

Fly to

Monrovia

Route

Depart

Return

Price

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 2/26

10:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Sat 3/14

10:45 pm-9:00 pm

2 stops50h 15m

$1,327

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 2/4

7:07 pm-6:45 pm

2 stops42h 38m

Monrovia Roberts Intl

Sun 2/8

10:45 pm-5:14 pm

2 stops23h 29m

$1,385

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 2/4

2:20 pm-5:50 pm

3 stops22h 30m

Monrovia Roberts Intl

Sun 2/8

11:05 am-11:49 pm

3 stops41h 44m

$1,424

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 1/19

5:45 am-5:50 pm

3 stops31h 05m

Monrovia Roberts Intl

Mon 1/26

7:30 am-11:49 pm

3 stops21h 19m

$1,466

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 2/26

8:07 pm-5:40 pm

3 stops40h 33m

Monrovia Roberts Intl

Sat 3/14

6:40 pm-11:17 am

3 stops44h 37m

$1,512

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 1/20

2:20 pm-9:15 pm

3 stops25h 55m

Monrovia Roberts Intl

Tue 1/27

10:45 pm-5:19 pm

2 stops23h 34m

$1,603

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 12/29

8:07 pm-4:35 am

2 stops27h 28m

Monrovia Roberts Intl

Fri 1/16

5:35 am-12:13 pm

2 stops35h 38m

$1,833

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 12/29

8:40 pm-9:15 pm

3 stops43h 35m

Monrovia Roberts Intl

Fri 1/16

10:45 pm-6:57 pm

2 stops25h 12m

$1,853

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Compare providers for flights from Boston 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 Boston to Monrovia in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Monrovia flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Boston-Monrovia flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Boston-Monrovia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Monrovia flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Boston-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 Boston to Monrovia

Have a flexible travel schedule? Discover the best time to fly to Monrovia from Boston 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 Boston to Monrovia

How far ahead should I book a flight from Boston to Monrovia?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Monrovia. Price data was last updated on December 5, 2025.

The best time to book flights from Boston to Monrovia is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston to Monrovia?

Currently, November is the cheapest month in which you can book a flight from Boston to Monrovia (average of $895). Flying from Boston to Monrovia in June is currently the most expensive (average of $1,621). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to ROB?

Find hourly flight availability from Boston to Monrovia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 7, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Boston to Monrovia by exploring options for tickets at noon.

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 December 7, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Brussels Airlines from Boston to Monrovia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,078 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,078 reviews
United Airlines
7.4
Good
9,078 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,042 reviews
United Airlines
7.4
Good
9,078 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Brussels Airlines
7.2
Good
375 reviews
United Airlines
7.4
Good
9,078 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Ethiopian Air
7.2
Good
903 reviews
United Airlines
7.4
Good
9,078 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

  • How long is the flight from Boston to Monrovia?

    SWISS, United Airlines, and Ethiopian Air can get you from Boston to Monrovia in just under 22h 30m. Your travel time can differ by up to 20h 08m. There are 4442 mi between Boston and Monrovia. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boston to Monrovia round-trip?

    According to our current data, Brussels Airlines ($962), United Airlines ($1,035), and Ethiopian Air ($1,304) offers the cheapest pricing from Boston to Monrovia. Brussels Airlines is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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.

  • What is the cheapest month to book a flight from Boston to Monrovia?

    Currently, November is the cheapest month in which you can book a flight from Boston to Monrovia (average of $895). Flying from Boston to Monrovia in June is currently the most expensive (average of $1,621). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Find flights from Boston to Monrovia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Top 4 airlines flying from Boston to Monrovia

Discover the top 4 airlines that operate flights from Boston 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 December 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$962Average$1,623FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,035Average$1,597FlexibilityNo cancel feeOn-time69%
Ethiopian AirCheapest$1,304Average$1,576FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$1,547Average$1,899FlexibilityNo cancel feeOn-time71%

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