BOS - ROB

$815 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 8/9. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights 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

Thu, Sep 11 - Wed, Sep 24
United Airlines Logo
11:00 am - 7:50 pmBOS-ROB
28h 50m3 stops
United Airlines Logo
9:10 pm - 4:22 pmROB-BOS
23h 12m2 stops
$1,103United Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 29
Brussels Airlines Logo
12:15 pm - 7:50 pmBOS-ROB
27h 35m3 stops
Brussels Airlines Logo
10:35 pm - 7:12 pmROB-BOS
24h 37m2 stops
$1,145Brussels Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 12
 Logo
10:20 am - 7:50 pmBOS-ROB
29h 30m3 stops
 Logo
9:10 pm - 3:25 pmROB-BOS
22h 15m2 stops
$1,180
Find Deal
Fri, Nov 7 - Tue, Nov 25
Brussels Airlines Logo
2:21 pm - 9:10 pmBOS-ROB
25h 49m3 stops
Brussels Airlines Logo
10:35 pm - 2:52 pmROB-BOS
21h 17m2 stops
$1,183Brussels Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 12
 Logo
3:15 pm - 7:50 pmBOS-ROB
24h 35m3 stops
 Logo
9:10 pm - 9:55 pmROB-BOS
28h 45m2 stops
$1,184
Find Deal
Mon, Aug 25 - Sun, Sep 7
SWISS Logo
5:05 pm - 7:50 pmBOS-ROB
22h 45m3 stops
SWISS Logo
9:10 pm - 3:25 pmROB-BOS
46h 15m2 stops
$1,185SWISS
Find Deal
Mon, Nov 17 - Mon, Nov 24
Ethiopian Air Logo
5:30 am - 2:45 pmBOS-ROB
52h 15m3 stops
Ethiopian Air Logo
11:05 am - 12:45 amROB-BOS
42h 40m3 stops
$1,437Ethiopian Air
Find Deal
Sat, Oct 4 - Sat, Oct 11
Ethiopian Air Logo
5:30 am - 2:45 pmBOS-ROB
29h 15m2 stops
Ethiopian Air Logo
7:30 am - 11:59 pmROB-BOS
20h 29m3 stops
$1,543Ethiopian Air
Find Deal
Thu, Dec 11 - Sun, Dec 28
American Airlines Logo
7:25 pm - 4:35 amBOS-ROB
52h 10m2 stops
American Airlines Logo
5:35 am - 10:02 amROB-BOS
33h 27m2 stops
$1,555American Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 28
American Airlines Logo
7:25 pm - 4:35 amBOS-ROB
52h 10m2 stops
American Airlines Logo
5:35 am - 9:06 amROB-BOS
32h 31m3 stops
$1,646American Airlines
Find Deal
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 $1,191 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $2,103 and $1,742 respectively.

Good to know

Low seasonSeptember
Cheapest flight$815
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 29% 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 $815 for a one-way ticket and $1,103 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?

    Star Alliance, and oneworld 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 $1,647 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 $1,625 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 8896 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

2.0 MediocreV, Jul 2025MIA - EWR
Read more United Airlines reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

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.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long 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

It was wonderful best Air lines covert and all very happy with their service they have been very helpful and friendly

No Asian Vegetarian food was available on this sector but only fish and chicken and pasta were offered.

For Vegetarian Food was very poor. Though we had opted for Asian Vegetarian Food they didn’t serve but only what was available was served. We were offered Smoked Salmon!

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

A child was loud throughout which made the trip less than optimal. Crew was great and professional. They need to change the automatic seat belt announcement which is too loud and had other unneeded words like "this is XYZ announcement number one'

Love the dreamliner plane. It's such a smooth ride, I don't notice that it's 15 hours in the air. The staff are great and they don't overstuff you with food.

I really like this airline. The staff are lovely and friendly, the planes are tidy and unfussy. I would rate them at the top of the African Airline carriers.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

They removed our booking without telling us. Cost us thousands to book last minute

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

The international flight from PHL to Lisbon was one of the worst I’ve experienced, ever. What was really disappointing was the entire experience of comfort and service in the coach cabin after takeoff. The food was inedible and the wine served with dinner was such low quality - it tasted of petrol. I couldn’t eat more than a bite or two of the chicken entree, being worried it would make me ill. The service took so long to reach the entire coach cabin, I ended up having the lights turned off on me as though I had to rush though dinner (though as I mentioned, it wasn’t as if I ate much - only the salad). Most of the attendants seemed generally annoyed and were not friendly or polite. While there was some turbulence, it wasn’t too uncomfortable and I know that is just a chance. The temperature of the cabin was so warm, even a friend a row or two up and on the other side of the plane felt like this. To top it all off, the seat was so uncomfortable and flattened/overused, I had back pains for DAYS afterward.

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.