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Monrovia

$748+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROB
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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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 February 12, 2026.

This Ovago deal was found by Cheapflights users on 2/11. 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 11/163:20 pm
BOS
-
ROB
3 stops24h 55m
Brussels Airlines
Wed 12/210:45 pm
ROB
-
BOS
2 stops20h 52m
Brussels Airlines
Deal found 2/11$1,216
This Gurufare deal was found by Cheapflights users on 2/10. 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.
Wed 2/259:50 pm
BOS
-
ROB
2 stops39h 55m
Multiple Airlines
Wed 3/1110:45 pm
ROB
-
BOS
2 stops24h 27m
Multiple Airlines
Deal found 2/10$1,224
This Gurufare deal was found by Cheapflights users on 2/10. 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.
Wed 3/49:50 pm
BOS
-
ROB
2 stops39h 55m
Multiple Airlines
Tue 3/1710:45 pm
ROB
-
BOS
2 stops24h 27m
Multiple Airlines
Deal found 2/10$1,225
This KAYAK deal was found by Cheapflights users on 2/10. 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.
Wed 3/49:50 pm
BOS
-
ROB
2 stops39h 55m
SWISS
Sun 3/1510:45 pm
ROB
-
BOS
2 stops50h 35m
SWISS
Deal found 2/10$1,258
This Gotogate deal was found by Cheapflights users on 2/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:30 am
BOS
-
ROB
3 stops35h 45m
Multiple Airlines
Fri 4/39:10 pm
ROB
-
BOS
2 stops46h 00m
Multiple Airlines
Deal found 2/10$1,262
This Brussels Airlines deal was found by Cheapflights users on 2/10. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:40 pm
BOS
-
ROB
2 stops41h 05m
Brussels Airlines
Wed 3/1110:45 pm
ROB
-
BOS
3 stops24h 27m
Brussels Airlines
Deal found 2/10$1,267
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:35 am
BOS
-
ROB
2 stops28h 10m
Ethiopian Air
Tue 3/1711:05 am
ROB
-
BOS
3 stops40h 52m
Ethiopian Air
Deal found 2/10$1,275
This Gurufare deal was found by Cheapflights users on 2/9. 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.
Wed 3/189:05 am
BOS
-
ROB
3 stops28h 35m
Multiple Airlines
Wed 5/66:50 pm
ROB
-
BOS
3 stops47h 26m
Multiple Airlines
Deal found 2/9$1,276
This KAYAK deal was found by Cheapflights users on 2/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:40 pm
BOS
-
ROB
3 stops43h 35m
Brussels Airlines
Wed 3/1810:45 pm
ROB
-
BOS
2 stops24h 50m
Brussels Airlines
Deal found 2/8$1,279
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/286:00 am
BOS
-
ROB
3 stops34h 15m
United Airlines
Wed 3/1810:45 pm
ROB
-
BOS
2 stops29h 50m
United Airlines
Deal found 2/9$1,281
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Fri 2/276:28 pm
BOS
-
ROB
3 stops45h 47m
United Airlines
Tue 3/1710:45 pm
ROB
-
BOS
2 stops24h 57m
United Airlines
Deal found 2/9$1,288

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,224
(Gurufare)

One-way from

$748
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$1,316
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
One-way flight from Boston Logan Intl to Monrovia Roberts Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 12, 2026.
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

Wed 2/25

8:40 pm-6:45 pm

2 stops41h 05m

Monrovia Roberts Intl

Wed 3/11

10:45 pm-7:12 pm

3 stops24h 27m

$1,267

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/3

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Tue 3/17

11:05 am-11:57 pm

3 stops40h 52m

$1,275

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/1

8:40 pm-9:15 pm

3 stops43h 35m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-7:35 pm

2 stops24h 50m

$1,279

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 2/28

6:00 am-9:15 pm

3 stops34h 15m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-12:35 am

2 stops29h 50m

$1,281

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 2/27

6:28 pm-9:15 pm

3 stops45h 47m

Monrovia Roberts Intl

Tue 3/17

10:45 pm-7:42 pm

2 stops24h 57m

$1,288

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/3

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Wed 5/20

7:30 am-11:59 pm

3 stops20h 29m

$1,289

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 3/4

8:40 pm-6:45 pm

2 stops41h 05m

Monrovia Roberts Intl

Tue 3/17

10:45 pm-7:12 pm

3 stops24h 27m

$1,289

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/1

5:30 am-2:45 pm

2 stops28h 15m

Monrovia Roberts Intl

Wed 3/18

7:30 am-11:57 pm

3 stops20h 27m

$1,295

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/3

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Mon 3/16

7:30 am-11:57 pm

3 stops20h 27m

$1,313

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 8/1

5:20 pm-7:50 pm

3 stops22h 30m

Monrovia Roberts Intl

Tue 8/11

9:10 pm-5:42 pm

2 stops24h 32m

$1,325

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 14 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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*2 stars
MytripPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Monrovia flight deals on Cheapflights vs. FlightHub >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 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 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

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.

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 February 12, 2026.
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
9,283 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,283 reviews
United Airlines
7.4
Good
9,283 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,273 reviews
United Airlines
7.4
Good
9,283 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Brussels Airlines
7.2
Good
384 reviews
United Airlines
7.4
Good
9,283 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Ethiopian Air
7.2
Good
958 reviews
United Airlines
7.4
Good
9,283 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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?

    Brussels Airlines, Ethiopian Air, and United Airlines can get you from Boston to Monrovia in just under 28h 10m. Your travel time can differ by up to 12h 55m. 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 ($1,248) offers the cheapest pricing from Boston to Monrovia. Brussels Airlines is 36% 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

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

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
Business Class
Premium Economy Class
Economy Class

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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$962Average$1,587FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,035Average$1,409FlexibilityNo cancel feeOn-time69%
Ethiopian AirCheapest$1,248Average$1,540FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$1,547Average$1,899FlexibilityNo cancel feeOn-time71%

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