HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Monrovia

$720+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ROB
feb. 6 — feb. 131
vie. 2/6
vie. 2/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston 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 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 enero 7, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$1,209
(Gurufare)

One-way from

$720
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$1,624
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 ($48 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 January 2026
Search Deals

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 enero 7, 2026.

This Gurufare deal was found by Cheapflights users on 1/7. 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.
lun. 11/23:20 pmBOS - ROB
3 stops24h 55mBrussels Airlines
mié. 12/210:45 pmROB - BOS
2 stops20h 52mBrussels Airlines
Deal found 1/7$1,208
This Gurufare deal was found by Cheapflights users on 1/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/163:35 pmBOS - ROB
3 stops24h 40mBrussels Airlines
mar. 3/310:45 pmROB - BOS
2 stops21h 07mBrussels Airlines
Deal found 1/6$1,209
This Ovago deal was found by Cheapflights users on 1/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/173:35 pmBOS - ROB
3 stops24h 40mBrussels Airlines
mar. 3/310:45 pmROB - BOS
2 stops25h 23mBrussels Airlines
Deal found 1/6$1,218
This FlightHub deal was found by Cheapflights users on 1/6. 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.
lun. 2/1610:15 amBOS - ROB
3 stops30h 00mMultiple Airlines
mar. 3/310:45 pmROB - BOS
2 stops21h 07mMultiple Airlines
Deal found 1/6$1,223
This Gurufare deal was found by Cheapflights users on 1/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/22:20 pmBOS - ROB
3 stops25h 55mMultiple Airlines
mié. 3/1810:45 pmROB - BOS
2 stops26h 35mMultiple Airlines
Deal found 1/6$1,230
This United Airlines deal was found by Cheapflights users on 1/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/174:15 pmBOS - ROB
3 stops24h 00mUnited Airlines
mié. 3/410:45 pmROB - BOS
2 stops23h 32mUnited Airlines
Deal found 1/6$1,231
This United Airlines deal was found by Cheapflights users on 1/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/157:19 pmBOS - ROB
3 stops44h 56mUnited Airlines
mar. 3/310:45 pmROB - BOS
2 stops28h 03mUnited Airlines
Deal found 1/6$1,237
This Brussels Airlines deal was found by Cheapflights users on 1/7. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/173:35 pmBOS - ROB
3 stops24h 40mBrussels Airlines
mar. 3/1710:45 pmROB - BOS
3 stops24h 27mBrussels Airlines
Deal found 1/7$1,254
This Gurufare deal was found by Cheapflights users on 1/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/142:20 pmBOS - ROB
3 stops25h 55mBrussels Airlines
mar. 3/310:45 pmROB - BOS
2 stops21h 07mBrussels Airlines
Deal found 1/6$1,255
This KAYAK deal was found by Cheapflights users on 1/6. 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.
mié. 2/189:50 pmBOS - ROB
2 stops39h 55mSWISS
dom. 3/110:45 pmROB - BOS
2 stops50h 35mSWISS
Deal found 1/6$1,256
This Brussels Airlines deal was found by Cheapflights users on 1/7. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/23:20 pmBOS - ROB
3 stops24h 55mBrussels Airlines
mar. 12/110:45 pmROB - BOS
3 stops24h 59mBrussels Airlines
Deal found 1/7$1,259
This Brussels Airlines deal was found by Cheapflights users on 1/6. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/163:35 pmBOS - ROB
3 stops24h 40mBrussels Airlines
mié. 3/410:45 pmROB - BOS
3 stops25h 23mBrussels Airlines
Deal found 1/6$1,260

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 enero 7, 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

lun. 2/16

3:35 pm-9:15 pm

3 stops24h 40m

Monrovia Roberts Intl

mar. 3/3

10:45 pm-2:52 pm

2 stops21h 07m

$1,209

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

lun. 2/16

3:35 pm-9:15 pm

3 stops24h 40m

Monrovia Roberts Intl

mié. 3/4

10:45 pm-2:52 pm

2 stops21h 07m

$1,209

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

mar. 2/17

4:15 pm-9:15 pm

3 stops24h 00m

Monrovia Roberts Intl

mié. 3/4

10:45 pm-5:17 pm

2 stops23h 32m

$1,231

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

mar. 2/17

4:15 pm-9:15 pm

3 stops24h 00m

Monrovia Roberts Intl

mar. 3/3

10:45 pm-6:41 pm

2 stops24h 56m

$1,231

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

dom. 2/15

7:19 pm-9:15 pm

3 stops44h 56m

Monrovia Roberts Intl

mar. 3/3

10:45 pm-9:48 pm

2 stops28h 03m

$1,237

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

mar. 2/17

3:35 pm-9:15 pm

3 stops24h 40m

Monrovia Roberts Intl

mar. 3/17

10:45 pm-7:12 pm

3 stops24h 27m

$1,254

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

mié. 2/18

9:50 pm-6:45 pm

2 stops39h 55m

Monrovia Roberts Intl

mié. 3/4

10:45 pm-8:20 pm

2 stops26h 35m

$1,256

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

jue. 2/12

12:35 pm-6:45 pm

2 stops25h 10m

Monrovia Roberts Intl

mié. 3/4

10:45 pm-5:17 pm

2 stops23h 32m

$1,281

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

vie. 2/13

6:28 pm-9:15 pm

3 stops45h 47m

Monrovia Roberts Intl

mié. 3/4

10:45 pm-5:17 pm

2 stops23h 32m

$1,288

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

mié. 3/18

10:50 pm-6:45 pm

2 stops39h 55m

Monrovia Roberts Intl

sáb. 3/28

10:45 pm-7:55 pm

2 stops49h 10m

$1,306

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 12 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 January.
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
MytripPrice 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 Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Boston-Monrovia flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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 enero 7, 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
9,138 reviews

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
American Airlines
7.2
Good
11,088 reviews
United Airlines
7.4
Good
9,138 reviews

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Brussels Airlines
7.2
Good
379 reviews
United Airlines
7.4
Good
9,138 reviews

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Ethiopian Air
7.2
Good
935 reviews
United Airlines
7.4
Good
9,138 reviews

Overall

7.4

Food

6.6

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 and United Airlines can get you from Boston to Monrovia in just under 24h. Your travel time can differ by up to 40m. 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 ($1,285) 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

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
Prem Econ 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 enero 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$962Average$1,621FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,035Average$1,529FlexibilityNo cancel feeOn-time69%
Ethiopian AirCheapest$1,285Average$1,577FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$1,547Average$1,899FlexibilityNo cancel feeOn-time71%

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.