Cheap Flights from Houston (IAH) to Marathon (MTH)

Popular airlines from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)

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Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon) cost?
Grab a cheap one-way flight or cheap return flight from George Bush Intercontinental Airport (IAH) 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 George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)?
Traveling in can help you save, as it's the cheapest month for flights between IAH and MTH. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAH to MTH. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to MTH?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)?
Opt for a flight from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon) that takes off before 3 PM to reduce the likelihood of delays. Later departures 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 George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon) last-minute?
Booking your flight from IAH to MTH just before your journey is generally more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Marathon, FL (MTH-Florida Keys Marathon)?
You can usually cancel or reschedule your IAH to MTH flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Florida Keys Marathon
Distance
948 mi

Book with confidence

Houston to Marathon Flights

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

 

The best time to book a flight from Houston to Marathon

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

 

Houston to Marathon Flights

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*Available to One Key members.