Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Monrovia from $748

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 7/14. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Monrovia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:50 pm - 6:45 pm
BOS
-
ROB
39h 55m
2 stops
Multiple Airlines Logo
10:45 pm - 7:12 pm
ROB
-
BOS
24h 27m
2 stops
$1,225Multiple Airlines
Wed, Mar 4 - Tue, Mar 17
SWISS Logo
9:50 pm - 6:45 pm
BOS
-
ROB
39h 55m
2 stops
SWISS Logo
10:45 pm - 9:20 pm
ROB
-
BOS
50h 35m
2 stops
$1,258SWISS
Wed, Mar 4 - Sun, Mar 15
Multiple Airlines Logo
5:30 am - 9:15 pm
BOS
-
ROB
35h 45m
3 stops
Multiple Airlines Logo
9:10 pm - 3:10 pm
ROB
-
BOS
46h 00m
2 stops
$1,262Multiple Airlines
Tue, Mar 17 - Fri, Apr 3
Multiple Airlines Logo
9:50 pm - 9:15 pm
BOS
-
ROB
42h 25m
3 stops
Multiple Airlines Logo
10:45 pm - 7:12 pm
ROB
-
BOS
24h 27m
2 stops
$1,270Multiple Airlines
Thu, Mar 5 - Wed, Mar 18
Ethiopian Air Logo
5:35 am - 2:45 pm
BOS
-
ROB
28h 10m
2 stops
Ethiopian Air Logo
11:05 am - 11:57 pm
ROB
-
BOS
40h 52m
3 stops
$1,274Ethiopian Air
Fri, Feb 27 - Tue, Mar 17
Ethiopian Air Logo
5:35 am - 2:45 pm
BOS
-
ROB
28h 10m
2 stops
Ethiopian Air Logo
11:05 am - 11:57 pm
ROB
-
BOS
40h 52m
3 stops
$1,275Ethiopian Air
Tue, Mar 3 - Tue, Mar 17
Multiple Airlines Logo
5:30 am - 9:15 pm
BOS
-
ROB
35h 45m
3 stops
Multiple Airlines Logo
9:10 pm - 5:40 pm
ROB
-
BOS
24h 30m
2 stops
$1,279Multiple Airlines
Tue, Mar 17 - Fri, Apr 3
United Airlines Logo
9:45 am - 9:15 pm
BOS
-
ROB
30h 30m
3 stops
United Airlines Logo
10:45 pm - 6:41 pm
ROB
-
BOS
23h 56m
2 stops
$1,281United Airlines
Sat, Feb 28 - Wed, Mar 18
Multiple Airlines Logo
5:35 am - 2:45 pm
BOS
-
ROB
28h 10m
2 stops
Multiple Airlines Logo
7:30 am - 11:59 pm
ROB
-
BOS
20h 29m
3 stops
$1,289Multiple Airlines
Tue, Mar 3 - Wed, May 20
Brussels Airlines Logo
4:25 pm - 6:45 pm
BOS
-
ROB
21h 20m
2 stops
Brussels Airlines Logo
10:45 pm - 7:12 pm
ROB
-
BOS
24h 27m
2 stops
$1,301Brussels Airlines
Thu, Mar 5 - Wed, Mar 18

Brussels Airlines flights from Boston to Monrovia

Our best Brussels Airlines deals on Boston to Monrovia flight tickets
Brussels Airlines
Mar 16
BOS10:15 amBoston Logan Intl
31h 00m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 24
ROB10:45 pmMonrovia Roberts Intl
22h 34m
2 stops
BOS5:19 pmBoston Logan Intl
$1,336
Brussels Airlines
Mar 4
BOS8:40 pmBoston Logan Intl
41h 05m
2 stops
ROB6:45 pmMonrovia Roberts Intl
Mar 15
ROB10:45 pmMonrovia Roberts Intl
24h 27m
3 stops
BOS7:12 pmBoston Logan Intl
$1,339
Brussels Airlines
Mar 5
BOS4:25 pmBoston Logan Intl
47h 50m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 18
ROB10:45 pmMonrovia Roberts Intl
24h 27m
3 stops
BOS7:12 pmBoston Logan Intl
$1,340

Ethiopian Air flights from Boston to Monrovia

Our best Ethiopian Air deals on Boston to Monrovia flight tickets
Ethiopian Air
Feb 27
BOS5:35 amBoston Logan Intl
28h 10m
2 stops
ROB2:45 pmMonrovia Roberts Intl
Mar 17
ROB11:05 amMonrovia Roberts Intl
40h 52m
3 stops
BOS11:57 pmBoston Logan Intl
$1,274
Ethiopian Air
Mar 3
BOS5:35 amBoston Logan Intl
28h 10m
2 stops
ROB2:45 pmMonrovia Roberts Intl
Mar 17
ROB11:05 amMonrovia Roberts Intl
40h 52m
3 stops
BOS11:57 pmBoston Logan Intl
$1,275
Ethiopian Air
Mar 3
BOS5:35 amBoston Logan Intl
28h 10m
2 stops
ROB2:45 pmMonrovia Roberts Intl
Mar 16
ROB7:30 amMonrovia Roberts Intl
20h 27m
3 stops
BOS11:57 pmBoston Logan Intl
$1,313

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 February 14, 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

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 3/4

9:50 pm-6:45 pm

2 stops39h 55m

Monrovia Roberts Intl

Tue 3/17

10:45 pm-7:12 pm

2 stops24h 27m

$1,225

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Wed 3/4

9:50 pm-6:45 pm

2 stops39h 55m

Monrovia Roberts Intl

Sun 3/15

10:45 pm-9:20 pm

2 stops50h 35m

$1,258

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/17

5:30 am-9:15 pm

3 stops35h 45m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-3:10 pm

2 stops46h 00m

$1,262

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 3/5

9:50 pm-9:15 pm

3 stops42h 25m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-7:12 pm

2 stops24h 27m

$1,270

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Fri 2/27

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Tue 3/17

11:05 am-11:57 pm

3 stops40h 52m

$1,274

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/3

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Tue 3/17

11:05 am-11:57 pm

3 stops40h 52m

$1,275

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/17

5:30 am-9:15 pm

3 stops35h 45m

Monrovia Roberts Intl

Fri 4/3

9:10 pm-5:40 pm

2 stops24h 30m

$1,279

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Sat 2/28

9:45 am-9:15 pm

3 stops30h 30m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-6:41 pm

2 stops23h 56m

$1,281

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Tue 3/3

5:35 am-2:45 pm

2 stops28h 10m

Monrovia Roberts Intl

Wed 5/20

7:30 am-11:59 pm

3 stops20h 29m

$1,289

BostonMonrovia

BOS - ROB

BOSROB

Boston Logan Intl

Thu 3/5

4:25 pm-6:45 pm

2 stops21h 20m

Monrovia Roberts Intl

Wed 3/18

10:45 pm-7:12 pm

2 stops24h 27m

$1,301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 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.

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

  • 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 $962Free CancellationRating
7.2
384 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $1,035Free CancellationRating
7.4
9,293 reviews
Search United Airlines flights
Ethiopian AirPriceFrom $1,248Free CancellationRating
7.2
962 reviews
Search Ethiopian Air flights
American AirlinesPriceFrom $1,547Free CancellationRating
7.2
11,292 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.

An easier way to manage your Monrovia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 3/16
Mon 3/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Liberia

Fly your favorite airline to Monrovia

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