BOS - ROB

$772 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 11/18. 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, 0 bags

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

Tue, Feb 3 - Tue, Feb 24
Brussels Airlines Logo
2:20 pm - 9:15 pmBOS-ROB
25h 55m3 stops
Brussels Airlines Logo
10:45 pm - 2:52 pmROB-BOS
21h 07m2 stops
$1,207Brussels Airlines
Find Deal
Fri, Feb 20 - Sun, Mar 29
Multiple Airlines Logo
5:30 am - 9:15 pmBOS-ROB
34h 45m3 stops
Multiple Airlines Logo
9:10 pm - 3:30 pmROB-BOS
46h 20m2 stops
$1,285Multiple Airlines
Find Deal
Wed, Mar 18 - Sun, Mar 22
SWISS Logo
10:50 pm - 6:45 pmBOS-ROB
39h 55m2 stops
SWISS Logo
10:45 pm - 9:20 pmROB-BOS
50h 35m2 stops
$1,286SWISS
Find Deal
Wed, Nov 19 - Thu, Jan 22
Ethiopian Air Logo
5:30 am - 5:50 pmBOS-ROB
31h 20m3 stops
Ethiopian Air Logo
11:05 am - 2:17 pmROB-BOS
32h 12m3 stops
$1,353Ethiopian Air
Find Deal
Wed, Mar 18 - Sun, Mar 22
Ethiopian Air Logo
5:45 am - 5:50 pmBOS-ROB
32h 05m3 stops
Ethiopian Air Logo
11:05 am - 9:51 pmROB-BOS
38h 46m3 stops
$1,394Ethiopian Air
Find Deal
Wed, Mar 18 - Sat, Mar 21
British Airways Logo
10:20 pm - 2:05 amBOS-ROB
23h 45m2 stops
British Airways Logo
3:05 am - 4:55 pmROB-BOS
41h 50m2 stops
$1,524British Airways
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Thu, Nov 27 - Sat, Jan 3
SWISS Logo
10:10 pm - 9:15 pmBOS-ROB
42h 05m3 stops
SWISS Logo
10:45 pm - 8:00 pmROB-BOS
50h 15m2 stops
$2,808SWISS
Find Deal
Fri, Dec 19 - Fri, Jan 2
British Airways Logo
4:28 pm - 4:35 amBOS-ROB
31h 07m3 stops
British Airways Logo
5:35 am - 7:50 pmROB-BOS
19h 15m2 stops
$2,866British Airways
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Wed, Dec 17 - Wed, Dec 24
United Airlines Logo
7:07 pm - 6:45 pmBOS-ROB
42h 38m2 stops
United Airlines Logo
10:45 pm - 6:13 pmROB-BOS
24h 28m2 stops
$2,914United Airlines
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Wed, Dec 17 - Wed, Dec 24
United Airlines Logo
7:07 pm - 6:45 pmBOS-ROB
42h 38m2 stops
United Airlines Logo
10:45 pm - 2:20 pmROB-BOS
44h 35m3 stops
$2,928United Airlines
Find Deal

Everything you should know

Top airlines
Brussels Airlines
Cheapest • from $1,207 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 12% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 34% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$1,207
Overall average: $1,581
Brussels Airlines
Tue 2/3Tue 2/24
BOS - ROB • 3 stops
Cheapest one-way
$772
Brussels Airlines
Tue 11/18
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 $2,068 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 2 weeks before departure, which saves you about 12% 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$772
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 32% 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 $772 for a one-way ticket and $1,207 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Monrovia, with SkyTeam 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 $1,597 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 $1,621 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 4 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 8997 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

2.0 MediocreGray, Nov 2025IAD - SFO
Read more United Airlines reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

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

Our first flight was delayed and when we got off that plane, nobody was really helping to direct us to the next gate. It was very frustrating. One staff simply said hurry, which wasn’t helpful. We had to go a long way to get to the next gate. Another issue on the plane itself was the bathrooms were disgusting and filthy and it didn’t seem like anybody was checking on them were cleaning them and it was a long flight. There was urine on the floor and they stunk. Also, the screen in front of my seat did not work, and I tried different headphones and still had no sound. You would think somehow those things are reviewed occasionally for working order.

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.

For a long haul flight, the seats were too narrow. Paid for extra legroom but wish I could have paid for width! I was pressed against another person for the whole donation of the flight.

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.

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

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