$755 Cheap Flights from Boston (BOS) to Monrovia (ROB)

You can find cheap one-way flights from $755 and cheap return flights $1,330 Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) with Expedia. Return flights often range between $1537 and $4994. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

The cheapest month to fly from BOS to ROB is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.

Enter BOS to ROB and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Air Canada is one of the cheapest airlines offering connecting flights from Logan Intl. (BOS) to Roberts Intl. (ROB), with round-trip tickets starting from around $1,871 with a layover in Pearson Intl. (YYZ). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

The earliest flight from Logan International Airport (BOS) to Roberts International (ROB) typically departs at around 5:10 AM, operated by JetBlue Airways and Royal Air Maroc. This is a seasonal service available in August, and an early flight can help you make the most of your time in Monrovia. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Boston, MA (BOS) to Monrovia (ROB) are in the evening, from 6pm to 9pm. About 45% of passengers prefer this time window. Many major carriers, including United Airlines, Lufthansa, and JetBlue Airways, offer flights during this window. This timing works well because it allows you to enjoy a full day in Boston before your flight.

Flying from BOS to ROB with a connection usually takes about 24 hours 30 minutes, traveling roughly 4,445 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Select the "Business class" and "First class" filters when looking for BOS to ROB flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Monrovia from Logan Intl. (BOS), you can fly typically into Roberts Intl. (ROB) Some flights may connect through major hubs like Frankfurt Intl. (FRA), John F. Kennedy Intl. (JFK), Pierre Elliott Trudeau Intl. (YUL) before reaching Monrovia. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Boston, MA (BOS-Logan Intl.) to Monrovia (ROB-Roberts Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.