Cheap Flights from Baltimore (BWI) to Marathon (MTH)

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon)

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Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Lock in a cheap one-way flight or cheap return flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between BWI and MTH. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon)?
To find the cheapest airline that'll fly you from BWI to MTH, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon)?
You'll need to book a flight with a layover if you're traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from BWI to MTH?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, carrier and other factors.*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 Marathon, FL (MTH-Florida Keys Marathon)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Last-minute bookings from BWI to MTH are generally more expensive. To secure the best prices, start searching for flights as early as possible. That said, if you can play around with your travel dates, it's possible to score a cheap ticket right before you leave.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Marathon, FL (MTH-Florida Keys Marathon)?
Typically, it's possible to reschedule or cancel your BWI to MTH flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Florida Keys Marathon
Distance
1030 mi

Book with confidence

Baltimore to Marathon Flights

The cheapest times to fly from Baltimore to Marathon

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

 

The best time to book a flight from Baltimore to Marathon

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

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 Marathon in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Marathon 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 Marathon 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.

 

Baltimore to Marathon Flights

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*Available to One Key members.