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Cheap flights from Boston to Monrovia from $819

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 6/10. 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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Find the cheapest flights from Boston to Monrovia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:50 am - 7:50 pm
BOS
-
ROB
34h 00m
3 stops
Multiple Airlines Logo
10:45 pm - 2:37 pm
ROB
-
BOS
20h 52m
2 stops
$1,399Multiple Airlines
Mon, Oct 12 - Tue, Nov 10
Multiple Airlines Logo
3:20 pm - 7:00 pm
BOS
-
ROB
22h 40m
2 stops
Multiple Airlines Logo
10:45 pm - 2:37 pm
ROB
-
BOS
20h 52m
2 stops
$1,449Multiple Airlines
Wed, Nov 11 - Sun, Nov 29
SWISS Logo
9:50 pm - 9:15 pm
BOS
-
ROB
42h 25m
3 stops
SWISS Logo
10:45 pm - 8:20 pm
ROB
-
BOS
50h 35m
2 stops
$1,477SWISS
Wed, Nov 11 - Sun, Nov 29
SWISS Logo
5:20 pm - 7:50 pm
BOS
-
ROB
22h 30m
3 stops
SWISS Logo
9:10 pm - 3:10 pm
ROB
-
BOS
46h 00m
2 stops
$1,556SWISS
Thu, Jul 23 - Sun, Oct 18
Brussels Airlines Logo
8:05 pm - 7:50 pm
BOS
-
ROB
43h 45m
3 stops
Brussels Airlines Logo
9:10 pm - 5:40 pm
ROB
-
BOS
48h 30m
2 stops
$1,569Brussels Airlines
Wed, Jul 29 - Sun, Aug 30
Multiple Airlines Logo
9:40 pm - 7:50 pm
BOS
-
ROB
42h 10m
3 stops
Multiple Airlines Logo
9:10 pm - 7:19 pm
ROB
-
BOS
26h 09m
2 stops
$1,583Multiple Airlines
Wed, Jul 29 - Fri, Aug 28
SWISS Logo
5:20 pm - 7:50 pm
BOS
-
ROB
22h 30m
3 stops
SWISS Logo
9:10 pm - 7:55 pm
ROB
-
BOS
26h 45m
2 stops
$1,602SWISS
Thu, Jul 30 - Sun, Aug 30
United Airlines Logo
7:25 pm - 7:50 pm
BOS
-
ROB
44h 25m
3 stops
United Airlines Logo
9:10 pm - 11:54 pm
ROB
-
BOS
30h 44m
2 stops
$1,606United Airlines
Wed, Sep 23 - Sun, Sep 27
Brussels Airlines Logo
6:25 pm - 7:50 pm
BOS
-
ROB
45h 25m
3 stops
Brussels Airlines Logo
9:10 pm - 7:19 pm
ROB
-
BOS
26h 09m
2 stops
$1,608Brussels Airlines
Wed, Jul 29 - Fri, Aug 28
United Airlines Logo
8:00 am - 7:50 pm
BOS
-
ROB
31h 50m
3 stops
United Airlines Logo
9:10 pm - 7:19 pm
ROB
-
BOS
26h 09m
2 stops
$1,610United Airlines
Sat, Aug 1 - Fri, Aug 28

Brussels Airlines flights from Boston to Monrovia

Our best Brussels Airlines deals on Boston to Monrovia flight tickets
Brussels Airlines
Jul 29
BOS8:05 pmBoston Logan Intl
43h 45m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 30
ROB9:10 pmMonrovia Roberts Intl
48h 30m
2 stops
BOS5:40 pmBoston Logan Intl
$1,569
Brussels Airlines
Jul 29
BOS6:25 pmBoston Logan Intl
45h 25m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 28
ROB9:10 pmMonrovia Roberts Intl
26h 09m
2 stops
BOS7:19 pmBoston Logan Intl
$1,608
Brussels Airlines
Jul 31
BOS8:05 pmBoston Logan Intl
43h 45m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 30
ROB9:10 pmMonrovia Roberts Intl
48h 30m
2 stops
BOS5:40 pmBoston Logan Intl
$1,619

United Airlines flights from Boston to Monrovia

Our best United Airlines deals on Boston to Monrovia flight tickets
United Airlines
Sep 23
BOS7:25 pmBoston Logan Intl
44h 25m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Sep 27
ROB9:10 pmMonrovia Roberts Intl
30h 44m
2 stops
BOS11:54 pmBoston Logan Intl
$1,606
United Airlines
Aug 1
BOS8:00 amBoston Logan Intl
31h 50m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 28
ROB9:10 pmMonrovia Roberts Intl
26h 09m
2 stops
BOS7:19 pmBoston Logan Intl
$1,610
United Airlines
Aug 2
BOS5:44 pmBoston Logan Intl
46h 06m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Aug 28
ROB9:10 pmMonrovia Roberts Intl
30h 49m
2 stops
BOS11:59 pmBoston Logan Intl
$1,616

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 May 17, 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

Mon 10/12

5:50 am-7:50 pm

3 stops34h 00m

Monrovia Roberts Intl

Tue 11/10

10:45 pm-2:37 pm

2 stops20h 52m

$1,399
Quickest round-trip

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 11/11

3:20 pm-7:00 pm

2 stops22h 40m

Monrovia Roberts Intl

Sun 11/29

10:45 pm-2:37 pm

2 stops20h 52m

$1,449

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 11/11

9:50 pm-9:15 pm

3 stops42h 25m

Monrovia Roberts Intl

Sun 11/29

10:45 pm-8:20 pm

2 stops50h 35m

$1,477

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 7/23

5:20 pm-7:50 pm

3 stops22h 30m

Monrovia Roberts Intl

Sun 10/18

9:10 pm-3:10 pm

2 stops46h 00m

$1,556

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 7/29

8:05 pm-7:50 pm

3 stops43h 45m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-5:40 pm

2 stops48h 30m

$1,569

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 7/29

9:40 pm-7:50 pm

3 stops42h 10m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-7:19 pm

2 stops26h 09m

$1,583

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 7/30

5:20 pm-7:50 pm

3 stops22h 30m

Monrovia Roberts Intl

Sun 8/30

9:10 pm-7:55 pm

2 stops26h 45m

$1,602

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 9/23

7:25 pm-7:50 pm

3 stops44h 25m

Monrovia Roberts Intl

Sun 9/27

9:10 pm-11:54 pm

2 stops30h 44m

$1,606

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 7/29

6:25 pm-7:50 pm

3 stops45h 25m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-7:19 pm

2 stops26h 09m

$1,608

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 8/1

8:00 am-7:50 pm

3 stops31h 50m

Monrovia Roberts Intl

Fri 8/28

9:10 pm-7:19 pm

2 stops26h 09m

$1,610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

22h 40m

Direct flights

None
The fastest flight from Boston to Monrovia takes 22h 40m
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 22h 40m.

  • 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 $1,026Free CancellationRating
7.3
408 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,035Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights
SWISSPriceFrom $1,191Free CancellationRating
7.5
1,949 reviews
Search SWISS flights
Ethiopian AirPriceFrom $1,285Free CancellationRating
7.2
999 reviews
Search Ethiopian Air flights
American AirlinesPriceFrom $1,547Free CancellationRating
7.1
11,650 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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Fly your favorite airline to Monrovia

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