Cheap Flights from Kansas City (MCI) to Marathon (MTH)

Popular airlines from Kansas City International Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.
Flights from Kansas City (MCI) to Marathon (MTH)
Origin airport
Kansas City Intl.
Destination airport
Florida Keys Marathon
Distance
1282 mi

Kansas City to Marathon Flights

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

The best time to book a flight from Kansas City to Marathon

Sunday is one of the best days to book for cheap flights from Kansas City 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 Kansas City 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 Kansas City 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 Kansas City 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 Kansas City 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 Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Discover the latest flight deals from MCI to MTH 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 MCI to MTH?
The cheapest flights from MCI to MTH 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 MCI to MTH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from MCI to MTH. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon)?
You’ll need to catch a flight with a layover when traveling from Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from MCI to MTH?
You’ll typically 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 Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon)?
Book a flight from Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Last-minute fares from MCI to MTH are usually more expensive. For the lowest prices, start looking for flights ahead of time. That said, if you can play around with your travel dates, you may score a cheap ticket right before your journey.
Can I cancel or change the date of my flight from Kansas City Intl. Airport (MCI) to Marathon, FL (MTH-Florida Keys Marathon)?
Typically, you can cancel or reschedule your MCI to MTH flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline’s fees and guidelines on flight changes, or if you’d like more information, go to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.