Cheap Flights from Chicago (MDW) to Marathon (MTH)

Popular airlines from Chicago Midway Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)

Flights from Chicago (MDW) to Marathon (MTH)
Origin airport
Midway Intl.
Destination airport
Florida Keys Marathon
Distance
1239 mi

Chicago to Marathon Flights

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

 

The best time to book a flight from Chicago to Marathon

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago 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 Chicago 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 Chicago 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.

 

Frequently asked questions

How much does a flight from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Lock in a cheap one-way flight or cheap return flight from Midway Intl. Airport (MDW) 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 deals on this route.
What is the cheapest month to fly from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)?
is the cheapest month to fly from MDW to MTH. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest MDW to MTH flight.
How many flights per day from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)?
You'll need to take a flight with a layover if you're traveling from Midway Intl. Airport (MDW) 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 more stops to discover an option that works for you.
What day of the week has the most flights from MDW to MTH?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)?
Book a flight from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time 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 Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Booking your flight from MDW to MTH right before your getaway is usually more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Can I cancel or change the date of my flight from Midway Intl. Airport (MDW) to Marathon, FL (MTH-Florida Keys Marathon)?
If you booked your MDW to MTH flight in 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 purchased, 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 for more details.

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*Available to One Key members.