$840 Cheap Flights from Monrovia (ROB) to Baltimore (BWI)

View $840 flight on Wed, Dec 24, 2025Opens in a new window

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

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Cheap Flights from Monrovia to Baltimore (ROB-BWI)

Prices were available within the past 7 days and start at $840 for one-way flights and $1,274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Aug 29 - Fri, Sep 12
ROB
Monrovia
BWI
Baltimore
$1,274 Roundtrip, found 2 days ago
$1,274
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Monrovia to Baltimore, returning Fri, Sep 12, priced at $1,274 found 2 days ago
United
Sun, Aug 17 - Thu, Sep 4
ROB
Monrovia
BWI
Baltimore
$1,295 Roundtrip, found 2 days ago
$1,295
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug 17 from Monrovia to Baltimore, returning Thu, Sep 4, priced at $1,295 found 2 days ago
United
Sun, Aug 17 - Sun, Aug 31
ROB
Monrovia
BWI
Baltimore
$1,355 Roundtrip, found 2 days ago
$1,355
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug 17 from Monrovia to Baltimore, returning Sun, Aug 31, priced at $1,355 found 2 days ago
American Airlines
Fri, Aug 29 - Wed, Sep 17
ROB
Monrovia
BWI
Baltimore
$1,386 Roundtrip, found 2 days ago
$1,386
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 29 from Monrovia to Baltimore, returning Wed, Sep 17, priced at $1,386 found 2 days ago
United
Wed, Jul 23 - Mon, Aug 11
ROB
Monrovia
BWI
Baltimore
$1,431 Roundtrip, found 2 days ago
$1,431
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Monrovia to Baltimore, returning Mon, Aug 11, priced at $1,431 found 2 days ago
United
Fri, Aug 22 - Sat, Sep 6
ROB
Monrovia
BWI
Baltimore
$1,452 Roundtrip, found 2 days ago
$1,452
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 22 from Monrovia to Baltimore, returning Sat, Sep 6, priced at $1,452 found 2 days ago
United
Fri, Aug 22 - Fri, Sep 5
ROB
Monrovia
BWI
Baltimore
$1,466 Roundtrip, found 2 days ago
$1,466
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 22 from Monrovia to Baltimore, returning Fri, Sep 5, priced at $1,466 found 2 days ago
American Airlines
Fri, Aug 15 - Fri, Aug 29
ROB
Monrovia
BWI
Baltimore
$1,511 Roundtrip, found 2 days ago
$1,511
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 15 from Monrovia to Baltimore, returning Fri, Aug 29, priced at $1,511 found 2 days ago
United
Fri, Aug 29 - Thu, Sep 18
ROB
Monrovia
BWI
Baltimore
$1,512 Roundtrip, found 2 days ago
$1,512
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 29 from Monrovia to Baltimore, returning Thu, Sep 18, priced at $1,512 found 2 days ago
Brussels Airlines
Fri, Jul 18 - Mon, Aug 4
ROB
Monrovia
BWI
Baltimore
$1,562 Roundtrip, found 2 days ago
$1,562
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Fri, Jul 18 from Monrovia to Baltimore, returning Mon, Aug 4, priced at $1,562 found 2 days ago
Flights from Monrovia (ROB) to Baltimore (BWI)
Origin airport
Roberts Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Roundtrip price
$1,274
Distance
4682 mi

Monrovia to Baltimore Flights

The cheapest times to fly from Monrovia to Baltimore

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 Monrovia to Baltimore are during the month of August. You can find some of the cheapest flights from Monrovia to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Monrovia to Baltimore

Sunday is one of the best days to book for cheap flights from Monrovia to Baltimore: 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 Monrovia to Baltimore

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 Monrovia to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $840 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 Monrovia to Baltimore 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 Monrovia to Baltimore 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 Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Discover the latest flight deals from ROB to BWI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ROB to BWI?
The cheapest flights from ROB to BWI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ROB to BWI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ROB to BWI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
There aren't any daily nonstop flights from Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from ROB to BWI?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be 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 Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To land at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on time, select a flight that leaves from Roberts Intl. Airport (ROB) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Booking your plane ticket from ROB to BWI shortly before your trip is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a ROB to BWI flight and hotel package?
Securing a ROB to BWI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Roberts Intl. Airport (ROB) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you reserved your ROB to BWI flight within the last 24 hours, you may be able to cancel or modify 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, go to our Customer Service portal if you want more information.

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*Available to One Key members.