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Monrovia

$776+ Cheap flights from Boston (BOS) to Monrovia (ROB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROB
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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

Find 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 November 13, 2025.

This KAYAK deal was found by Cheapflights users on 11/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:59 amBOS - ROB
3 stops28h 16mUnited Airlines
Wed 12/1010:45 pmROB - BOS
2 stops24h 48mUnited Airlines
Deal found 11/10$1,229
This Ovago deal was found by Cheapflights users on 11/11. 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.
Wed 12/317:15 pmBOS - ROB
2 stops28h 20mBritish Airways
Thu 1/293:05 amROB - BOS
2 stops23h 50mBritish Airways
Deal found 11/11$1,462
This KAYAK deal was found by Cheapflights users on 11/11. 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.
Mon 12/810:10 pmBOS - ROB
3 stops42h 05mSWISS
Fri 4/179:10 pmROB - BOS
2 stops46h 20mSWISS
Deal found 11/11$1,504
This Ovago deal was found by Cheapflights users on 11/11. 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 12/810:10 pmBOS - ROB
3 stops42h 05mSWISS
Wed 4/159:10 pmROB - BOS
2 stops22h 20mSWISS
Deal found 11/11$1,547
This Ovago deal was found by Cheapflights users on 11/11. 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 12/94:20 pmBOS - ROB
3 stops23h 55mMultiple Airlines
Wed 4/159:10 pmROB - BOS
2 stops22h 20mMultiple Airlines
Deal found 11/11$1,552
This Ovago deal was found by Cheapflights users on 11/11. 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 12/94:20 pmBOS - ROB
3 stops23h 55mMultiple Airlines
Fri 4/179:10 pmROB - BOS
2 stops22h 20mMultiple Airlines
Deal found 11/11$1,555
This KAYAK deal was found by Cheapflights users on 11/11. 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.
Mon 12/810:10 pmBOS - ROB
3 stops42h 05mSWISS
Tue 4/149:10 pmROB - BOS
2 stops50h 45mSWISS
Deal found 11/11$1,573
This KAYAK deal was found by Cheapflights users on 11/11. 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.
Mon 12/810:10 pmBOS - ROB
3 stops42h 05mSWISS
Sun 4/129:10 pmROB - BOS
2 stops50h 45mSWISS
Deal found 11/11$1,574
This KAYAK deal was found by Cheapflights users on 11/11. 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 12/710:10 pmBOS - ROB
3 stops42h 05mSWISS
Fri 4/179:10 pmROB - BOS
2 stops46h 20mSWISS
Deal found 11/11$1,579
This Gurufare deal was found by Cheapflights users on 11/11. 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.
Tue 12/94:20 pmBOS - ROB
3 stops23h 55mMultiple Airlines
Tue 4/149:10 pmROB - BOS
2 stops26h 45mMultiple Airlines
Deal found 11/11$1,588

Cheap 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 November 13, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$1,229
(KAYAK)

One-way from

$776
(Gurufare)

Popular in

December

Cheapest in

August

Average price

$1,244
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.
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From Boston Logan Intl to Monrovia Roberts Intl
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One-way flight from Boston Logan Intl to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 13, 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

Mon 12/1

11:59 am-9:15 pm

3 stops28h 16m

Monrovia Roberts Intl

Wed 12/10

10:45 pm-6:33 pm

2 stops24h 48m

$1,229

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 2/7

5:45 am-2:45 pm

2 stops28h 00m

Monrovia Roberts Intl

Wed 2/11

7:30 am-11:49 pm

3 stops21h 19m

$1,427

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 2/12

5:35 am-5:50 pm

3 stops31h 15m

Monrovia Roberts Intl

Thu 3/19

11:05 am-8:15 pm

3 stops37h 10m

$1,522

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 12/8

10:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Wed 4/15

9:10 pm-3:30 pm

2 stops22h 20m

$1,547

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 12/9

4:20 pm-9:15 pm

3 stops23h 55m

Monrovia Roberts Intl

Fri 4/17

9:10 pm-3:30 pm

2 stops22h 20m

$1,555

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 12/7

10:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Tue 4/14

9:10 pm-7:55 pm

2 stops50h 45m

$1,634

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 12/1

9:35 pm-4:35 am

2 stops26h 00m

Monrovia Roberts Intl

Wed 12/10

5:35 am-9:55 pm

2 stops21h 20m

$1,675

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 2/19

2:20 pm-6:45 pm

2 stops23h 25m

$776

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 2/20

2:20 pm-9:15 pm

3 stops25h 55m

$776

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 2/18

9:50 pm-6:45 pm

2 stops39h 55m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 18 results
1
2

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 November.
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 November 7, 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 November 13, 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 November 13, 2025.
Peruse reviews from past customers who have flown with United Airlines, Brussels Airlines, and Ethiopian Air 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
9,017 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Brussels Airlines
7.2
Good
369 reviews
United Airlines
7.4
Good
9,017 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Ethiopian Air
7.2
Good
894 reviews
United Airlines
7.4
Good
9,017 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Kenya Airways
6.8
Okay
286 reviews
United Airlines
7.4
Good
9,017 reviews

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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?

    United Airlines and Ethiopian Air can get you from Boston to Monrovia in just under 28h. Your travel time can differ by up to 16m. 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 38% 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

Browse thousands of different options on Cheapflights for your next trip

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Search flights from Boston to Monrovia by cabin class

Find flights from Boston to Monrovia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
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Prem Econ 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$962Average$1,631FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,035Average$1,597FlexibilityNo cancel feeOn-time69%
Ethiopian AirCheapest$1,304Average$1,624FlexibilityNo cancel feeOn-time72%
Kenya AirwaysCheapest$1,355Average$1,508FlexibilityNo cancel feeOn-time82%

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