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Monrovia

$1,293+ 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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROB
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
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 June 9, 2026.

This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:00 am
BOS
-
ROB
3 stops31h 50m
United Airlines
Tue 9/19:10 pm
ROB
-
BOS
2 stops32h 04m
United Airlines
Deal found 6/5$1,449
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:30 pm
BOS
-
ROB
3 stops43h 20m
United Airlines
Tue 9/19:10 pm
ROB
-
BOS
2 stops32h 04m
United Airlines
Deal found 6/5$1,456
This KAYAK deal was found by Cheapflights users on 6/6. 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 9/279:30 am
BOS
-
ROB
3 stops28h 20m
Multiple Airlines
Mon 10/196:50 pm
ROB
-
BOS
3 stops48h 10m
Multiple Airlines
Deal found 6/6$1,467
This KAYAK deal was found by Cheapflights users on 6/6. 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.
Sat 9/266:40 pm
BOS
-
ROB
3 stops43h 10m
Multiple Airlines
Mon 10/196:50 pm
ROB
-
BOS
3 stops48h 10m
Multiple Airlines
Deal found 6/6$1,473
This KAYAK deal was found by Cheapflights users on 6/5. 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.
Wed 8/59:40 pm
BOS
-
ROB
3 stops42h 10m
SWISS
Tue 9/19:10 pm
ROB
-
BOS
2 stops46h 00m
SWISS
Deal found 6/5$1,480
This CheapOair deal was found by Cheapflights users on 6/5. 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.
Tue 11/175:40 pm
BOS
-
ROB
2 stops44h 20m
Multiple Airlines
Wed 4/289:10 pm
ROB
-
BOS
2 stops40h 31m
Multiple Airlines
Deal found 6/5$1,506
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:30 pm
BOS
-
ROB
3 stops43h 20m
United Airlines
Sun 8/309:10 pm
ROB
-
BOS
2 stops41h 08m
United Airlines
Deal found 6/5$1,512
This FlightHub deal was found by Cheapflights users on 6/6. 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.
Mon 9/286:50 pm
BOS
-
ROB
3 stops45h 00m
Multiple Airlines
Sun 10/189:10 pm
ROB
-
BOS
2 stops50h 45m
Multiple Airlines
Deal found 6/6$1,519
This KAYAK deal was found by Cheapflights users on 6/6. 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.
Fri 9/259:20 am
BOS
-
ROB
3 stops28h 30m
Kenya Airways
Wed 10/216:50 pm
ROB
-
BOS
3 stops44h 29m
Kenya Airways
Deal found 6/6$1,522
This FlightHub deal was found by Cheapflights users on 6/6. 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 9/276:55 pm
BOS
-
ROB
3 stops44h 55m
Multiple Airlines
Sun 10/189:10 pm
ROB
-
BOS
2 stops46h 00m
Multiple Airlines
Deal found 6/6$1,523
This Brussels Airlines deal was found by Cheapflights users on 6/5. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:16 pm
BOS
-
ROB
3 stops23h 44m
Brussels Airlines
Wed 4/289:10 pm
ROB
-
BOS
2 stops22h 41m
Brussels Airlines
Deal found 6/5$1,526
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:30 am
BOS
-
ROB
3 stops28h 20m
Multiple Airlines
Sat 9/196:50 pm
ROB
-
BOS
3 stops50h 09m
Multiple Airlines
Deal found 6/7$1,529

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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,449
(United Airlines)

One-way from

$1,293
(Ovago)

Popular in

December

Cheapest in

August

Average price

$1,785
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. 3% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 9, 2026.
Use the filters below to find and compare flights from Boston to Monrovia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 8/2

8:30 pm-7:50 pm

3 stops43h 20m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-10:18 am

2 stops41h 08m

$1,512

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 8/2

8:30 pm-7:50 pm

3 stops43h 20m

Monrovia Roberts Intl

Tue 8/25

9:10 pm-4:42 pm

2 stops23h 32m

$1,706

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 8/5

8:15 pm-7:50 pm

3 stops43h 35m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-7:19 pm

2 stops26h 09m

$1,757

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 6/15

6:00 am-7:50 pm

3 stops33h 50m

Monrovia Roberts Intl

Fri 7/3

9:10 pm-9:51 am

2 stops40h 41m

$1,906

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 8/26

12:42 pm-4:35 am

2 stops35h 53m

Monrovia Roberts Intl

Sat 9/5

6:50 pm-11:15 am

3 stops44h 25m

$2,034

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 6/30

5:45 am-7:50 pm

3 stops34h 05m

Monrovia Roberts Intl

Tue 7/14

9:10 pm-3:10 pm

2 stops46h 00m

$2,074

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 7/2

2:15 pm-7:50 pm

3 stops25h 35m

Monrovia Roberts Intl

Tue 8/4

9:10 pm-7:55 pm

2 stops50h 45m

$2,100
Quickest round-trip

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 7/3

3:15 pm-4:35 am

2 stops33h 20m

Monrovia Roberts Intl

Fri 7/17

5:45 am-10:59 pm

2 stops21h 14m

$2,149

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 6/28

5:45 am-2:45 pm

2 stops29h 00m

Monrovia Roberts Intl

Wed 7/29

8:15 am-7:14 am

2 stops26h 59m

$2,264
Cheapest one-way

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 6/28

5:45 pm-7:50 pm

3 stops46h 05m

$1,293

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 11 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
BusinessClassPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 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, August is the cheapest month in which you can book a flight from Boston to Monrovia (average of $1,035). Flying from Boston to Monrovia in December is currently the most expensive (average of $1,841). 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.

How much does it cost to fly round-trip from Boston to Monrovia?

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 June 9, 2026.
Peruse reviews from past customers who have flown with SWISS,United Airlines, andBrussels 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.
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
SWISS
7.5
Good
1,968 reviews
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
United Airlines
7.4
Good
9,801 reviews
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Brussels Airlines
7.2
Good
411 reviews
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Ethiopian Air
7.2
Good
1,006 reviews
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
American Airlines
7.1
Good
11,639 reviews
SWISS
7.5
Good
1,968 reviews

Overall

7.5

Entertainment

6.8

Boarding

7.7

Crew

8.3

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

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 can get you from Boston to Monrovia in just under 43h 20m. Your travel time can differ by up to . There are 4442 mi between Boston and Monrovia.

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

    According to our current data, Brussels Airlines ($1,026), United Airlines ($1,035), and SWISS ($1,191) offers the cheapest pricing from Boston to Monrovia. Brussels Airlines is 31% 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, August is the cheapest month in which you can book a flight from Boston to Monrovia (average of $1,035). Flying from Boston to Monrovia in December is currently the most expensive (average of $1,841). 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 flights to Monrovia
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Top 5 airlines flying from Boston to Monrovia

Discover the top 5 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$1,026Average$1,616FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,035Average$1,450FlexibilityNo cancel feeOn-time69%
SWISSCheapest$1,191Average$1,564FlexibilityNo cancel feeOn-time79%
Ethiopian AirCheapest$1,308Average$1,457FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$1,547Average$1,899FlexibilityNo cancel feeOn-time71%

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