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Cheap flights from Boston to Monrovia from $755

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 1/6. 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
0 bags

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Cheap round-trip flights

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SWISS Logo
11:10 pm - 9:15 pm
BOS
-
ROB
42h 05m3 stops
SWISS Logo
9:10 pm - 7:55 pm
ROB
-
BOS
50h 45m2 stops
$1,255SWISS
Sun, Mar 8 - Sun, Apr 5
Multiple Airlines Logo
10:15 am - 9:15 pm
BOS
-
ROB
31h 00m2 stops
Multiple Airlines Logo
9:10 pm - 3:30 pm
ROB
-
BOS
46h 20m2 stops
$1,281Multiple Airlines
Tue, Mar 10 - Fri, Apr 3
SWISS Logo
11:10 pm - 9:15 pm
BOS
-
ROB
42h 05m3 stops
SWISS Logo
9:10 pm - 7:55 pm
ROB
-
BOS
26h 45m2 stops
$1,282SWISS
Sun, Mar 8 - Fri, Apr 3
Multiple Airlines Logo
6:40 pm - 9:15 pm
BOS
-
ROB
46h 35m3 stops
Multiple Airlines Logo
9:10 pm - 7:55 pm
ROB
-
BOS
26h 45m2 stops
$1,288Multiple Airlines
Sun, Mar 8 - Fri, Apr 3
Brussels Airlines Logo
5:25 pm - 9:15 pm
BOS
-
ROB
23h 50m3 stops
Brussels Airlines Logo
9:10 pm - 5:40 pm
ROB
-
BOS
48h 30m2 stops
$1,296Brussels Airlines
Tue, Mar 10 - Sun, Apr 5
SWISS Logo
10:50 pm - 6:45 pm
BOS
-
ROB
39h 55m2 stops
SWISS Logo
9:10 pm - 7:55 pm
ROB
-
BOS
50h 45m2 stops
$1,305SWISS
Wed, Mar 11 - Fri, Apr 3
United Airlines Logo
7:07 pm - 9:15 pm
BOS
-
ROB
45h 08m3 stops
United Airlines Logo
10:45 pm - 10:36 am
ROB
-
BOS
40h 51m2 stops
$1,317United Airlines
Sun, Feb 8 - Sun, Feb 15
SWISS Logo
11:10 pm - 9:15 pm
BOS
-
ROB
42h 05m3 stops
SWISS Logo
9:10 pm - 7:55 pm
ROB
-
BOS
50h 45m2 stops
$1,330SWISS
Sun, Mar 8 - Tue, Mar 31
SWISS Logo
10:10 pm - 9:15 pm
BOS
-
ROB
42h 05m3 stops
SWISS Logo
10:45 pm - 8:20 pm
ROB
-
BOS
50h 35m2 stops
$1,331SWISS
Fri, Jan 9 - Tue, Jan 20
Multiple Airlines Logo
5:45 am - 2:45 pm
BOS
-
ROB
28h 00m2 stops
Multiple Airlines Logo
7:30 am - 11:49 pm
ROB
-
BOS
21h 19m3 stops
$1,333Multiple Airlines
Sun, Feb 1 - Sat, Feb 7

Ethiopian Air flights from Boston to Monrovia

Our best Ethiopian Air deals on Boston to Monrovia flight tickets
Ethiopian Air
Apr 1
BOS5:45 amBoston Logan Intl
32h 05m
3 stops
ROB5:50 pmMonrovia Roberts Intl
Apr 14
ROB11:05 amMonrovia Roberts Intl
38h 49m
3 stops
BOS9:54 pmBoston Logan Intl
$1,399
Find similar
Ethiopian Air
May 11
BOS6:00 amBoston Logan Intl
31h 50m
3 stops
ROB5:50 pmMonrovia Roberts Intl
May 22
ROB7:30 amMonrovia Roberts Intl
33h 13m
3 stops
BOS12:43 pmBoston Logan Intl
$1,452
Find similar
Ethiopian Air
Apr 2
BOS5:45 amBoston Logan Intl
32h 05m
3 stops
ROB5:50 pmMonrovia Roberts Intl
Apr 16
ROB11:05 amMonrovia Roberts Intl
38h 49m
3 stops
BOS9:54 pmBoston Logan Intl
$1,466
Find similar

Brussels Airlines flights from Boston to Monrovia

Our best Brussels Airlines deals on Boston to Monrovia flight tickets
Brussels Airlines
Jan 15
BOS2:20 pmBoston Logan Intl
25h 55m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Feb 14
ROB10:45 pmMonrovia Roberts Intl
24h 50m
2 stops
BOS6:35 pmBoston Logan Intl
$1,483
Find similar
Brussels Airlines
May 11
BOS3:28 pmBoston Logan Intl
24h 22m
2 stops
ROB7:50 pmMonrovia Roberts Intl
May 22
ROB9:10 pmMonrovia Roberts Intl
24h 30m
2 stops
BOS5:40 pmBoston Logan Intl
$1,620
Find similar
Brussels Airlines
Jan 6
BOS4:20 pmBoston Logan Intl
23h 55m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Jan 13
ROB10:45 pmMonrovia Roberts Intl
48h 50m
2 stops
BOS6:35 pmBoston Logan Intl
$1,622
Find similar

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 December 28, 2025.
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

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/8

11:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Sun 4/5

9:10 pm-7:55 pm

2 stops50h 45m

$1,255

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/10

10:15 am-9:15 pm

2 stops31h 00m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-3:30 pm

2 stops46h 20m

$1,281

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/8

11:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-7:55 pm

2 stops26h 45m

$1,282

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/8

6:40 pm-9:15 pm

3 stops46h 35m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-7:55 pm

2 stops26h 45m

$1,288

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/10

5:25 pm-9:15 pm

3 stops23h 50m

Monrovia Roberts Intl

Sun 4/5

9:10 pm-5:40 pm

2 stops48h 30m

$1,296

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 3/11

10:50 pm-6:45 pm

2 stops39h 55m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-7:55 pm

2 stops50h 45m

$1,305

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 2/8

7:07 pm-9:15 pm

3 stops45h 08m

Monrovia Roberts Intl

Sun 2/15

10:45 pm-10:36 am

2 stops40h 51m

$1,317

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 3/8

11:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Tue 3/31

9:10 pm-7:55 pm

2 stops50h 45m

$1,330

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 1/9

10:10 pm-9:15 pm

3 stops42h 05m

Monrovia Roberts Intl

Tue 1/20

10:45 pm-8:20 pm

2 stops50h 35m

$1,331

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sun 2/1

5:45 am-2:45 pm

2 stops28h 00m

Monrovia Roberts Intl

Sat 2/7

7:30 am-11:49 pm

3 stops21h 19m

$1,333

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $1,258.

What is the cheapest day to depart on your flight to Monrovia?

The cheapest day to depart from Boston to Monrovia is on a Tuesday when prices can be found for as low as $1,801. On the other hand, Saturday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,919.

What is the cheapest time of day to depart on your flight to Monrovia?

The cheapest time of day to fly to Monrovia is at noon when flights can be purchased for as low as $1,642. Try not to purchase tickets in the morning because they tend to be around $1,938. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Monrovia?

You are more likely to see cheaper flights to Monrovia from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Monrovia for around $1,547 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Monrovia from Boston for as low as $1,172 on momondo.

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

30h 35m

Direct flights

None
The fastest flight from Boston to Monrovia takes 30h 35m
There are no direct flights from Boston to Monrovia. There are no popular flight routes from Boston to Monrovia.
Search flight deals

  • 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 30h 35m.

  • 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 $962Free CancellationRating
7.2
377 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,035Free CancellationRating
7.4
9,114 reviews
Search United Airlines flights
Ethiopian AirPriceFrom $1,285Free CancellationRating
7.2
919 reviews
Search Ethiopian Air flights
American AirlinesPriceFrom $1,547Free CancellationRating
7.2
11,071 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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