BOS - ROB

$941 Find Cheap Flights from Boston to Monrovia - Compare and Save

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Everything you should know

Cheapest round-trip
$1,478
Typical prices: $1,465-$1,784
United Airlines
Fri 3/2Sun 8/19
BOS - ROB • 3 stops
Cheapest one-way
$941
Typical prices: $852-$941
Multiple Airlines
Fri 12/28
BOS - ROB • 3 stops
When to travel
Cheapest • 16% price drop
Most popular
Good to know
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Good to know
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Booking Insights
Flight Deals

Cheap Flights from Boston to Monrovia (BOS-ROB)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Monrovia

Tue, Mar 2 - Thu, Aug 19
United Airlines Logo
9:10 am - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
31h 05m3 stops Chicago O'Hare Intl Brussels Bruxelles-National Freetown Lungi Intl
United Airlines Logo
9:35 pm - 12:49 amROB  Monrovia Roberts Intl-BOS Boston Logan Intl
31h 14m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$1,478United Airlines
Mon, Mar 8 - Tue, Aug 24
United Airlines Logo
2:16 pm - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
25h 59m3 stops Washington, D.C. Dulles Intl Brussels Bruxelles-National Freetown Lungi Intl
United Airlines Logo
9:35 pm - 11:54 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
30h 19m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl
$1,478United Airlines
Mon, Mar 15 - Thu, Aug 19
United Airlines Logo
8:30 am - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
32h 45m3 stops Newark Brussels Bruxelles-National Freetown Lungi Intl
United Airlines Logo
9:35 pm - 11:16 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
29h 41m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$1,478United Airlines
Tue, Mar 16 - Sun, Aug 22
Multiple Airlines Logo
5:30 am - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
35h 45m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Freetown Lungi Intl
Multiple Airlines Logo
9:35 pm - 7:55 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
50h 20m2 stops Brussels Bruxelles-National Zurich
$1,494Multiple Airlines
Mon, Mar 15 - Sun, Aug 22
Multiple Airlines Logo
5:30 am - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
35h 45m3 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National Freetown Lungi Intl
Multiple Airlines Logo
9:35 pm - 7:55 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
50h 20m2 stops Brussels Bruxelles-National Zurich
$1,494Multiple Airlines
Tue, Nov 17 - Tue, Dec 1
Ethiopian Air Logo
5:30 am - 2:45 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
28h 15m2 stops Washington, D.C. Dulles Intl Addis Ababa Bole
Ethiopian Air Logo
11:05 am - 11:59 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
41h 54m3 stops Addis Ababa Bole Rome Fiumicino Washington, D.C. Dulles Intl
$1,501Ethiopian Air
Tue, Mar 16 - Sun, Aug 22
SWISS Logo
10:50 pm - 7:00 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
40h 10m2 stops Zurich Brussels Bruxelles-National
SWISS Logo
9:35 pm - 7:55 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
50h 20m2 stops Brussels Bruxelles-National Zurich
$1,502SWISS
Wed, Mar 3 - Thu, Aug 19
Brussels Airlines Logo
8:40 pm - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
43h 35m3 stops Munich Franz Josef Strauss Brussels Bruxelles-National Freetown Lungi Intl
Brussels Airlines Logo
9:35 pm - 5:40 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
24h 05m2 stops Brussels Bruxelles-National Munich Franz Josef Strauss
$1,528Brussels Airlines
Wed, Mar 3 - Tue, Aug 24
Brussels Airlines Logo
8:40 pm - 9:15 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
43h 35m3 stops Munich Franz Josef Strauss Brussels Bruxelles-National Freetown Lungi Intl
Brussels Airlines Logo
9:35 pm - 5:40 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
24h 05m2 stops Brussels Bruxelles-National Munich Franz Josef Strauss
$1,528Brussels Airlines
Tue, Mar 16 - Mon, Aug 23
Ethiopian Air Logo
6:00 am - 2:45 pmBOS  Boston Logan Intl-ROB Monrovia Roberts Intl
28h 45m2 stops Washington, D.C. Dulles Intl Addis Ababa Bole
Ethiopian Air Logo
11:05 am - 2:23 pmROB  Monrovia Roberts Intl-BOS Boston Logan Intl
31h 18m3 stops Addis Ababa Bole Rome Fiumicino Washington, D.C. Dulles Intl
$1,565Ethiopian Air
Booking Insights

Price, demand and travel trends for Boston to Monrovia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Monrovia?

Round-trip flights from Boston to Monrovia typically range from $1,465 to $1,784. The lowest price found in the past 5 days was $1,478, on United Airlines.

What's the cheapest day of the week to fly from Boston to Monrovia?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Boston to Monrovia. It’s 4% cheaper than the average day, while Tuesday is the most expensive, with prices 9% higher.

What’s the cheapest month to fly from Boston to Monrovia?

•March is the cheapest month to fly from Boston to Monrovia at $1,340 round-trip.
•December ($1,923) and July ($1,846) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 43% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Key details for Boston to Monrovia flights

Low season

September

Cheapest flight

$941
Beat the crowds with an average 48% drop in travelers.
The most popular month to fly with an average 67% increase in travelers.
One-way 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

Your Boston to Monrovia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Monrovia?

    Only Economy Class is available on flights from Boston to Monrovia.

  • Do I need a passport to fly from Boston to Monrovia?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Monrovia flight?

    Round-trip flights from Boston to Monrovia range from $1,465 to $1,784, with an average of $1,592 over the past 12 months. Anything below $1,465 counts as a good deal.

  • Have flight prices from Boston to Monrovia changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,448 to $9,226. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Boston to Monrovia looking right now?

    One-way fares from Boston to Monrovia are currently higher than usual. Average one-way flight prices are about $1,588, which is 68% above the typical average for this route.

  • Which airports can I use when flying from Boston to Monrovia?

    Flights from Boston to Monrovia usually depart from Boston Logan Intl (BOS) and arrive at Monrovia Roberts Intl (ROB).

  • Can I save money by using flexible dates for flights from Boston to Monrovia?

    Yes. Flexible dates can save you up to 12% on flights from Boston to Monrovia. Monday is the cheapest departure day at $1,534 round-trip on average, while Tuesday is the most expensive at $1,742, a difference of $208.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Boston and Monrovia?

    Monrovia is 4 hours ahead of Boston (Greenwich Mean Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Boston to Monrovia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Tuesday. On this route, Monday flights average $1,534, about $208 less than Tuesday fares (12% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Monrovia trip for March. Fares historically average $1,340 round-trip in that month - typically $583 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Boston to Monrovia

Complete your trip to Monrovia with a hotel stay or car rental