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Cheap flights from Boston to Monrovia from $815

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Monrovia departing on 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Boston to Monrovia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:15 pm - 5:50 pm
BOS
-
ROB
41h 35m
3 stops
Multiple Airlines Logo
6:50 pm - 11:10 am
ROB
-
BOS
44h 20m
3 stops
$1,467Multiple Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
9:50 am - 7:50 pm
BOS
-
ROB
30h 00m
3 stops
United Airlines Logo
9:10 pm - 4:43 pm
ROB
-
BOS
23h 33m
2 stops
$1,509United Airlines
Mon, Aug 3 - Tue, Aug 25
United Airlines Logo
7:27 pm - 7:50 pm
BOS
-
ROB
44h 23m
3 stops
United Airlines Logo
9:10 pm - 5:36 pm
ROB
-
BOS
24h 26m
2 stops
$1,515United Airlines
Sun, Aug 9 - Tue, Aug 25
SWISS Logo
9:40 pm - 7:50 pm
BOS
-
ROB
42h 10m
3 stops
SWISS Logo
9:10 pm - 3:10 pm
ROB
-
BOS
46h 00m
2 stops
$1,535SWISS
Wed, Aug 5 - Sun, Aug 30
SWISS Logo
9:40 pm - 7:50 pm
BOS
-
ROB
42h 10m
3 stops
SWISS Logo
9:10 pm - 4:43 pm
ROB
-
BOS
23h 33m
2 stops
$1,553SWISS
Wed, Aug 5 - Fri, Aug 28
United Airlines Logo
9:50 am - 7:50 pm
BOS
-
ROB
30h 00m
3 stops
United Airlines Logo
9:10 pm - 5:55 pm
ROB
-
BOS
24h 45m
2 stops
$1,559United Airlines
Mon, Aug 3 - Fri, Aug 28
United Airlines Logo
7:27 pm - 7:50 pm
BOS
-
ROB
44h 23m
3 stops
United Airlines Logo
9:10 pm - 5:55 pm
ROB
-
BOS
24h 45m
2 stops
$1,565United Airlines
Sun, Aug 9 - Fri, Aug 28
Brussels Airlines Logo
12:30 pm - 7:50 pm
BOS
-
ROB
27h 20m
3 stops
Brussels Airlines Logo
9:10 pm - 2:41 pm
ROB
-
BOS
21h 31m
2 stops
$1,579Brussels Airlines
Sat, Aug 8 - Sun, Aug 30
Brussels Airlines Logo
3:35 pm - 7:50 pm
BOS
-
ROB
24h 15m
3 stops
Brussels Airlines Logo
9:10 pm - 2:41 pm
ROB
-
BOS
21h 31m
2 stops
$1,583Brussels Airlines
Thu, Aug 6 - Sun, Aug 30
SWISS Logo
9:40 pm - 7:50 pm
BOS
-
ROB
42h 10m
3 stops
SWISS Logo
9:10 pm - 3:10 pm
ROB
-
BOS
46h 00m
2 stops
$1,585SWISS
Fri, Aug 7 - Tue, Aug 25

United Airlines flights from Boston to Monrovia

Our best United Airlines deals on Boston to Monrovia flight tickets
United Airlines
Aug 3
BOS9:50 amBoston Logan Intl
30h 00m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 25
ROB9:10 pmMonrovia Roberts Intl
23h 33m
2 stops
BOS4:43 pmBoston Logan Intl
$1,509
United Airlines
Aug 9
BOS7:27 pmBoston Logan Intl
44h 23m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 25
ROB9:10 pmMonrovia Roberts Intl
24h 26m
2 stops
BOS5:36 pmBoston Logan Intl
$1,515
United Airlines
Aug 3
BOS9:50 amBoston Logan Intl
30h 00m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 28
ROB9:10 pmMonrovia Roberts Intl
24h 45m
2 stops
BOS5:55 pmBoston Logan Intl
$1,559

SWISS flights from Boston to Monrovia

Our best SWISS deals on Boston to Monrovia flight tickets
SWISS
Aug 5
BOS9:40 pmBoston Logan Intl
42h 10m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 30
ROB9:10 pmMonrovia Roberts Intl
46h 00m
2 stops
BOS3:10 pmBoston Logan Intl
$1,535
SWISS
Aug 5
BOS9:40 pmBoston Logan Intl
42h 10m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 28
ROB9:10 pmMonrovia Roberts Intl
23h 33m
2 stops
BOS4:43 pmBoston Logan Intl
$1,553
SWISS
Aug 7
BOS9:40 pmBoston Logan Intl
42h 10m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 25
ROB9:10 pmMonrovia Roberts Intl
46h 00m
2 stops
BOS3:10 pmBoston Logan Intl
$1,585

momondo 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, momondo users made 832,500 searches. Data last updated April 2, 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

Sat 5/2

8:15 pm-5:50 pm

3 stops41h 35m

Monrovia Roberts Intl

Wed 5/6

6:50 pm-11:10 am

3 stops44h 20m

$1,467

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 8/3

9:50 am-7:50 pm

3 stops30h 00m

Monrovia Roberts Intl

Tue 8/25

9:10 pm-4:43 pm

2 stops23h 33m

$1,509

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 8/9

7:27 pm-7:50 pm

3 stops44h 23m

Monrovia Roberts Intl

Tue 8/25

9:10 pm-5:36 pm

2 stops24h 26m

$1,515

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 8/5

9:40 pm-7:50 pm

3 stops42h 10m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-3:10 pm

2 stops46h 00m

$1,535

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 8/5

9:40 pm-7:50 pm

3 stops42h 10m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-4:43 pm

2 stops23h 33m

$1,553

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Mon 8/3

9:50 am-7:50 pm

3 stops30h 00m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-5:55 pm

2 stops24h 45m

$1,559

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 8/9

7:27 pm-7:50 pm

3 stops44h 23m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-5:55 pm

2 stops24h 45m

$1,565

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 8/8

12:30 pm-7:50 pm

3 stops27h 20m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-2:41 pm

2 stops21h 31m

$1,579
Quickest round-trip

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 8/6

3:35 pm-7:50 pm

3 stops24h 15m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-2:41 pm

2 stops21h 31m

$1,583

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 8/7

9:40 pm-7:50 pm

3 stops42h 10m

Monrovia Roberts Intl

Tue 8/25

9:10 pm-3:10 pm

2 stops46h 00m

$1,585

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Monrovia from

How to get the cheapest flight ticket from Boston to Monrovia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Monrovia?

What is the cheapest month to fly to Monrovia?

If you’re not able to fly to Monrovia in August, then November is your next best option. Flight prices from Boston to Monrovia during November average around $1,251.

When to book flights from Boston to Monrovia

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Monrovia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Monrovia (BOS to ROB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Monrovia

Fastest flight time

18h 30m

Direct flights

None
The fastest flight from Boston to Monrovia takes 18h 30m
There are no direct flights from Boston to Monrovia. There are no popular flight routes from Boston to Monrovia.
Search flight deals

Frequently asked questions about flying from Boston to Monrovia

  • How far is Boston Logan Intl to Monrovia Roberts Intl by plane?

    There are 4419.4 mi between Boston Logan Intl and Monrovia Roberts Intl. A reasonable flight in good conditions will take 18h 30m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Monrovia Roberts Intl Airport?

    Prices for flights from Boston Logan Intl Airport to Monrovia Roberts Intl Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Monrovia Roberts Intl Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Monrovia Roberts Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Monrovia Roberts Intl Airport.

  • What documentation or ID do you need to fly to Monrovia Roberts Intl Airport?

    The travel and health documents you'll need for your trip to Monrovia Roberts Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Monrovia Roberts Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Monrovia?

Best airlines flying from Boston to Monrovia

Compare and see reviews for airlines that fly from Boston to Monrovia with momondo
Airline
Rating
Free Cancellation
Price
Brussels AirlinesPriceFrom $1,025Free CancellationRating
7.2
397 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,035Free CancellationRating
7.4
9,536 reviews
Search United Airlines flights
Ethiopian AirPriceFrom $1,285Free CancellationRating
7.2
994 reviews
Search Ethiopian Air flights
American AirlinesPriceFrom $1,547Free CancellationRating
7.1
11,552 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Monrovia?

Finding the right flight to Monrovia from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Monrovia quick and easy, saving you time and money.

Can I find flights from Boston to Monrovia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Monrovia from Boston with this policy.

How can momondo help me find flights from Boston to Monrovia?

Once you have performed a search for Boston to Monrovia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boston to Monrovia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to Monrovia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Brussels Airlines
United Airlines
Ethiopian Air
American Airlines