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Monrovia

$129+ Cheap flights from Boston (BOS) to Monrovia, CA, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Monrovia are usually found in September or January, booked 61 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to Monrovia

Keep the following information in mind while searching for Boston to Monrovia flight deals. Data was last updated August 1, 2025.

Round-trip from

$227
(Alaska Airlines)

One-way from

$129
(Delta)

Popular in

December

Cheapest in

September

Average price

$347
From Boston Logan Intl to Monrovia
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One-way flight from Boston Logan Intl to Monrovia
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boston to Monrovia

Cheapest flights from Boston to Monrovia
Explore the most affordable flight options available from Boston to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:15 amBOS - LAX
Nonstop6h 10mUnited Airlines
Tue 9/96:05 amLAX - BOS
1 stop8h 42mUnited Airlines
Deal found 7/31$227
This JetBlue deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:59 pmBOS - LAX
Nonstop6h 21mJetBlue
Tue 9/99:45 pmLAX - BOS
Nonstop5h 40mJetBlue
Deal found 7/30$228
This FlightHub deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amBOS - LAX
1 stop11h 17mSpirit Airlines
Mon 11/1012:40 pmLAX - BOS
1 stop9h 00mSpirit Airlines
Deal found 7/31$230
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:15 amBOS - LAX
1 stop9h 05mSouthwest
Fri 9/57:45 pmLAX - BOS
2 stops9h 35mSouthwest
Deal found 7/30$233
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:50 amBOS - LAX
Nonstop6h 16mDelta
Wed 9/173:25 pmLAX - BOS
Nonstop5h 28mDelta
Deal found 7/31$237
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:00 amBOS - LAX
1 stop11h 17mMultiple Airlines
Fri 11/1410:00 amLAX - BOS
1 stop11h 20mMultiple Airlines
Deal found 7/30$239
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:00 amBOS - LAX
1 stop10h 04mAlaska Airlines
Fri 9/126:07 pmLAX - BOS
1 stop8h 53mAlaska Airlines
Deal found 7/31$276

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Boston to Monrovia that are best for you.

Fly from

Boston

Fly to

Monrovia

Route

Depart

Return

Price

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 9/3

7:15 am-10:25 am

Nonstop6h 10m

Los Angeles

Tue 9/9

6:05 am-5:47 pm

1 stop8h 42m

$227

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Thu 9/4

6:59 pm-10:20 pm

Nonstop6h 21m

Los Angeles

Sat 9/6

9:45 pm-6:25 am

Nonstop5h 40m

$228

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Fri 8/15

6:30 am-11:17 am

1 stop7h 47m

Los Angeles

Tue 8/19

8:30 am-10:34 pm

1 stop11h 04m

$230

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 8/30

6:15 am-12:20 pm

1 stop9h 05m

Los Angeles

Fri 9/5

7:45 pm-8:20 am

2 stops9h 35m

$233

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 9/13

6:50 am-10:06 am

Nonstop6h 16m

Los Angeles

Sat 9/20

11:20 am-7:54 pm

Nonstop5h 34m

$237

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Fri 8/22

6:30 am-11:17 am

1 stop7h 47m

Los Angeles

Sat 8/23

9:31 pm-9:13 am

1 stop8h 42m

$245

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 9/9

6:00 am-1:04 pm

1 stop10h 04m

Los Angeles

Fri 9/12

6:07 pm-6:00 am

1 stop8h 53m

$276

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Thu 9/11

8:35 pm-11:52 pm

Nonstop6h 17m

$129

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 8/13

6:30 am-11:17 am

1 stop7h 47m

$130

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 9/10

7:05 am-2:00 pm

2 stops9h 55m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 13 results
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Best time to book a flight from Boston to Monrovia

Have a flexible travel schedule? Discover the best time to fly to Monrovia from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Monrovia. Price data was last updated on July 25, 2025.

The best time to book flights from Boston to Monrovia is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston to Monrovia?

Currently, January is the cheapest month in which you can book a flight from Boston to Monrovia (average of $246). Flying from Boston to Monrovia in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to MR9?

Find hourly flight availability from Boston to Monrovia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Monrovia as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Monrovia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Monrovia flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Monrovia

Explore weekly flight availability from Boston to Monrovia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 1, 2025.

The most flights from BOS to MR9 are scheduled on a Thursday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

Reviews of airlines servicing Monrovia

Get insights into the airlines that provide service to Monrovia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Monrovia. Reviews last updated August 1, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Boston to Monrovia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Boston to Monrovia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Monrovia?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Monrovia. 10 airlines have flights from Logan Intl to Monrovia on a regular basis. Booking flights from Boston Logan Intl to Monrovia should not be difficult; the airport handles an average of 42 outbound flights to Monrovia per day.

  • How popular is this Boston to Monrovia flight route?

    The Boston Logan Intl to Monrovia flight path was viewed by 95 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Boston to Monrovia one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $129. Users have also found prices from $130 and $134 on Spirit Airlines and Southwest, respectively.

  • What are the most reliable airlines from Boston to Monrovia?

    Before booking your flight to Monrovia from Boston, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (88%), Japan Airlines (87%), TAP AIR PORTUGAL( 85%).

  • What are the cheapest flights from Boston to Monrovia?

    Looking at all options, your cheapest flight can be booked for $118. While the most popular route (Boston Logan Intl - Los Angeles) can be booked for $177 on average our data indicates $2,084 when flying from Boston to Monrovia.

  • Can I find deals for flights from Boston to Monrovia that include hotel bookings?

    Yes. In addition to deals on Boston to Monrovia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Monrovia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Monrovia.

  • Can I find deals for business class flights from Boston to Monrovia?

    Yes. Cheapflights offers flight deals from Boston to Monrovia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Monrovia?

    Currently, January is the cheapest month in which you can book a flight from Boston to Monrovia (average of $246). Flying from Boston to Monrovia in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 10 airlines flying from Boston to Monrovia

Discover the top 10 airlines that operate flights from Boston to Monrovia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$160FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$92Average$234FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$102Average$250FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$108Average$330FlexibilityNo cancel feeOn-time62%
DeltaCheapest$149Average$415FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$180Average$397FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$201Average$427FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$206Average$390FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$222Average$417FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$236Average$450FlexibilityNo cancel feeOn-time63%

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