$548 Cheap Flights from Baltimore (BWI) to Monrovia (ROB)

View $548 flight on Mon, Sep 8, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Monrovia (ROB-Roberts Intl.)

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Cheap Flights from Baltimore to Monrovia (BWI-ROB)

Prices were available within the past 7 days and start at $548 for one-way flights and $1,159 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 30 - Tue, Oct 7
BWI
Baltimore
ROB
Monrovia
$1,159 Roundtrip, just found
$1,159
Roundtrip
just found
Select United flight, departing Tue, Sep 30 from Baltimore to Monrovia, returning Tue, Oct 7, priced at $1,159 just found
United
Tue, Sep 30 - Tue, Oct 7
BWI
Baltimore
ROB
Monrovia
$1,165 Roundtrip, just found
$1,165
Roundtrip
just found
Select United flight, departing Tue, Sep 30 from Baltimore to Monrovia, returning Tue, Oct 7, priced at $1,165 just found
United
Sun, Sep 21 - Tue, Sep 30
BWI
Baltimore
ROB
Monrovia
$1,171 Roundtrip, found 5 days ago
$1,171
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 21 from Baltimore to Monrovia, returning Tue, Sep 30, priced at $1,171 found 5 days ago
United
Sun, Sep 14 - Tue, Sep 30
BWI
Baltimore
ROB
Monrovia
$1,171 Roundtrip, found 3 days ago
$1,171
Roundtrip
found 3 days ago
Select United flight, departing Sun, Sep 14 from Baltimore to Monrovia, returning Tue, Sep 30, priced at $1,171 found 3 days ago
United
Mon, Oct 13 - Tue, Oct 28
BWI
Baltimore
ROB
Monrovia
$1,178 Roundtrip, found 5 days ago
$1,178
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 13 from Baltimore to Monrovia, returning Tue, Oct 28, priced at $1,178 found 5 days ago
United
Mon, Sep 1 - Sun, Sep 14
BWI
Baltimore
ROB
Monrovia
$1,209 Roundtrip, found 4 days ago
$1,209
Roundtrip
found 4 days ago
Select United flight, departing Mon, Sep 1 from Baltimore to Monrovia, returning Sun, Sep 14, priced at $1,209 found 4 days ago
United
Tue, Sep 30 - Tue, Oct 7
BWI
Baltimore
ROB
Monrovia
$1,209 Roundtrip, just found
$1,209
Roundtrip
just found
Select United flight, departing Tue, Sep 30 from Baltimore to Monrovia, returning Tue, Oct 7, priced at $1,209 just found
United
Tue, Oct 21 - Sun, Nov 9
BWI
Baltimore
ROB
Monrovia
$1,214 Roundtrip, found 16 hours ago
$1,214
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 21 from Baltimore to Monrovia, returning Sun, Nov 9, priced at $1,214 found 16 hours ago
American Airlines
Fri, Jan 2 - Wed, Jan 14
BWI
Baltimore
ROB
Monrovia
$1,711 Roundtrip, found 4 hours ago
$1,711
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, Jan 2 from Baltimore to Monrovia, returning Wed, Jan 14, priced at $1,711 found 4 hours ago
British Airways
Wed, Jan 7 - Fri, Mar 6
BWI
Baltimore
ROB
Monrovia
$1,835 Roundtrip, found 3 days ago
$1,835
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Jan 7 from Baltimore to Monrovia, returning Fri, Mar 6, priced at $1,835 found 3 days ago

Alternative airports near Monrovia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Roberts Intl. ROB. Cheapest option available. Average driving time to city center is 49 minutes. Flights from $1,159
ROB
Roberts Intl.
Cheapest
Average driving time to city center49 min
Flights from $1,159
Flights from Baltimore (BWI) to Monrovia (ROB)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Roberts Intl.
Airlines serving
American Airlines, British Airways, United
Roundtrip price
$1,159
Distance
4682 mi

Baltimore to Monrovia Flights

The cheapest times to fly from Baltimore to Monrovia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Monrovia are during the month of September. You can find some of the cheapest flights from Baltimore to Monrovia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Monrovia

Sunday is one of the best days to book for cheap flights from Baltimore to Monrovia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Monrovia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Monrovia in 2025. You can also book with separate airlines for your outbound and return journeys, from $548 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Monrovia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Monrovia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB) cost?
Secure a cheap one-way flight from $548 or cheap return flight from $1,159 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB)?
September is the least expensive month to fly from BWI to ROB. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BWI to ROB flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB)?
There aren't any daily direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BWI to ROB?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB)?
Select a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB) last-minute?
Booking your plane ticket from BWI to ROB shortly before your journey is typically more expensive. However, if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a BWI to ROB flight and hotel package?
You can save money by booking a BWI to ROB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your ideal accommodations and flights, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Roberts Intl. Airport (ROB)?
In most instances, you can cancel or modify your BWI to ROB flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.