BOS - ROB

$770 Find Cheap Flights from Boston to Monrovia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Monrovia departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Monrovia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Monrovia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Monrovia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Boston to Monrovia (BOS-ROB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Monrovia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Monrovia

Sun, Oct 19 - Wed, Oct 29
Multiple Airlines Logo
6:30 pm - 7:50 pmBOS-ROB
45h 20m3 stops
Multiple Airlines Logo
10:45 pm - 7:12 pmROB-BOS
24h 27m2 stops
$1,215Multiple Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 22
United Airlines Logo
5:30 am - 7:50 pmBOS-ROB
34h 20m3 stops
United Airlines Logo
9:10 pm - 5:51 pmROB-BOS
24h 41m2 stops
$1,229United Airlines
Find Deal
Sun, Oct 12 - Wed, Oct 22
SWISS Logo
9:40 pm - 7:50 pmBOS-ROB
42h 10m3 stops
SWISS Logo
9:10 pm - 3:25 pmROB-BOS
46h 15m2 stops
$1,260SWISS
Find Deal
Sat, Nov 1 - Sun, Dec 7
Ethiopian Air Logo
5:30 am - 2:45 pmBOS-ROB
29h 15m2 stops
Ethiopian Air Logo
11:05 am - 6:33 pmROB-BOS
36h 28m3 stops
$1,267Ethiopian Air
Find Deal
Thu, Oct 30 - Wed, Nov 5
Brussels Airlines Logo
5:20 pm - 6:45 pmBOS-ROB
21h 25m2 stops
Brussels Airlines Logo
10:45 pm - 2:52 pmROB-BOS
21h 07m2 stops
$1,287Brussels Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 28
Ethiopian Air Logo
5:30 am - 2:45 pmBOS-ROB
29h 15m2 stops
Ethiopian Air Logo
11:05 am - 11:42 pmROB-BOS
40h 37m3 stops
$1,289Ethiopian Air
Find Deal
Sat, Oct 11 - Sun, Oct 26
SWISS Logo
5:05 pm - 7:50 pmBOS-ROB
22h 45m3 stops
SWISS Logo
10:45 pm - 9:20 pmROB-BOS
50h 35m2 stops
$1,310SWISS
Find Deal
Sun, Oct 19 - Sat, Nov 1
Brussels Airlines Logo
8:05 pm - 7:50 pmBOS-ROB
43h 45m3 stops
Brussels Airlines Logo
10:45 pm - 7:35 pmROB-BOS
24h 50m2 stops
$1,329Brussels Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 27
Kenya Airways Logo
9:59 am - 5:40 pmBOS-ROB
27h 41m3 stops
Kenya Airways Logo
7:00 pm - 11:09 amROB-BOS
44h 09m3 stops
$1,498Kenya Airways
Find Deal
Sun, Oct 12 - Wed, Oct 22
Kenya Airways Logo
9:59 am - 5:40 pmBOS-ROB
27h 41m3 stops
Kenya Airways Logo
6:40 pm - 11:09 amROB-BOS
44h 29m3 stops
$1,561Kenya Airways
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $1,229 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 35% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$1,215
Overall average: $1,575
Multiple Airlines
Sun 10/19Wed 10/29
BOS - ROB • 3 stops
Cheapest one-way
$770
Royal Air Maroc
Wed 10/1
BOS - ROB • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Monrovia!
Booking Insights

KAYAK's insights & trends for Boston to Monrovia flights

Get data-powered insights and trends into flights from Boston to Monrovia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to Monrovia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Monrovia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Monrovia is August, where tickets cost $1,035 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,081 and $1,741 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Monrovia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Monrovia, you should book around 5 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$770
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Boston to Monrovia

When to book flights from Boston to Monrovia

Are your dates flexible? Find out the best times to travel from Boston to Monrovia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Monrovia

  • What is the cheapest flight from Boston to Monrovia?

    In the last 3 days, the lowest price for a flight from Boston to Monrovia was $770 for a one-way ticket and $1,215 for a round-trip.

  • Do I need a passport to fly between Boston and Monrovia?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Monrovia.

  • Which aircraft models fly most regularly from Boston to Monrovia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Monrovia?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Boston and Monrovia, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Monrovia, United Airlines or Ethiopian Air?

    The two airlines most popular with KAYAK users for flights from Boston to Monrovia are United Airlines and Ethiopian Air. With an average price for the route of $1,634 and an overall rating of 7.4, United Airlines is the most popular choice. Ethiopian Air is also a great choice for the route, with an average price of $1,614 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Boston to Monrovia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Monrovia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Monrovia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Monrovia from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Monrovia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Monrovia with an airline and back to Boston with another airline. Booking your flights between Boston and ROB can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Monrovia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Monrovia from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Boston to Monrovia

 
See real verified KAYAK customer reviews for airlines flying from Boston to Monrovia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Monrovia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8929 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

2.0 MediocreAnonymous, Sep 2025SFO - MEX
Read more United Airlines reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

The food was terrible and the seating was uncomfortable, but the airline did a great thing letting us board in Abbis Ababa on our connecting flight after our original flight was very delayed.

Traveling with Ethiopian is always a good experience. I also enjoy the stay at skylight hotel in Addis

The flight is packed and it feels like the space per individual has gotten smaller. Excruciating for a 14hr flight.

Lost suite case and pillow that’s used by senior and they didn’t leave it at the airport

I had a comfortable seat that makes my trip wonderful. I appreciate the Ethiopia crew, they were very helpful

The hygiene was super bad. Smells bad and air refreshment is highly advisable. The crew made some one else sit in my spot and no one is checking seat number and people are jumping to sit on other people’s allocated seat.

worst was delayed luggage. could see luggage was still in Singapore but they insist I wait till all luggage are unloaded before filing a report. took 2 days to arrive and I had to collect it myself from the airport

The flight itself was fine. The exception is that my luggage was destroyed, and I filed a claim that I haven't heard from anyone.

Im if Ethiopian can allow customers to use their mileage for in flight connexion it will be great.

United was best airlines I have seen since I got there choose united airlines

Delayed flight made my day very long, but other than that KQ got me to my destination in good shape.

The nice treatment and lovely pilots who accepted my son inside for a photo.So lovely of them

Got delayed for over 24 hours. Fight was cancelled. Was put up at a nice hotel whose kitchen was unfortunately not prepared for the sudden influx of guests The headphone jacks on the seat were loose and sound kept getting dropped over the headphones. Food was good though. Certain items (Amarula) were not available for purchase over the on-plane duty free. Had been told i would pick my luggage at my final destination*wrong* had to pick it up in JFK and recheck it and then got charged for it**** too tired to argue with the Delta staff on the issue.... after a 15 hr flight.

This one is not bad even it is late, but they apologize and every time they announced the update.

I’m very disappointed for this trip and I will never travel again in this airline. In addition, I don’t recommend to any human being to travel to Kenya Airways. They keep me at Nairobi for 4 days without care. I was at Nairobi from 6 a.m Morning up to 10 a:m Thursday. For that reason, I have trouble for my work and may be I will lose my job. During for those 4 days I didn’t have my medicine, I didn’t have clothes to change because all my clothes were in my checked bags. On Thursday, when I got flight, they don’t even apologize for all consequences I had. During for those 4 days, I learned many things for this airline. It is their system to treat passengers like this because they had hundreds or thousands passengers around Nairobi waiting for their flights after their original flights cancelled. If I lose my job, I planned to file claim to the airline. This is not airline to travel with.

They weight duty free goods at check in and count the weight as carry on luggage. Results : for 4 bottles I had to opay $150. rip off. Be careful to avoid any duty free shopping at Dubai airport

The boarding was fast, the food was great; however, the seats & leg space were tight.

I enjoyed my flight I arrived safe with all my luggage

No complaints just improve on the food service. Provide enough dinner. People are complaining about that.

Was very good, was happy with the way staff were smiling and how they were approachable

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Everything you need to know for your flight from Boston to Monrovia

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