Cheap Flights from Portland (PDX) to Marathon (MTH)

Popular airlines from Portland International Airport (PDX) 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*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
Flight from Portland to Marathon (PDX - MTH) route information
Origin airport
Portland Intl.
Destination airport
Florida Keys Marathon
Distance
4336 km

Portland to Marathon Flights

The easy way to book your flights from Portland to Marathon 

With Expedia, it’s simple to find and book flights to Marathon from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Florida Keys Marathon, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to Marathon today, tomorrow, or this week.  

 

Save dollars with cheap flights from Portland Intl., PDX to Florida Keys Marathon, MTH 

Sort your search results by price to find great deals on your flight from Portland to Marathon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Marathon from Portland currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Marathon  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Marathon from Portland 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Marathon with Expedia today.

Frequently asked questions

How much is a flight from PDX to MTH?
Round-trip flights between Portland Airport and MTH start from . This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Intl. Airport (PDX) to MTH?
This can vary between airlines, as each has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel your flight online.
How do I find cheap flights from Portland Intl. Airport (PDX) to MTH that have flexible change policies?
Flights from PDX to MTH offering flexible change policies are available with many airlines. Simply use our "No change fees" filter when searching. You'll only need to pay the cost difference between the two flights, without any extra fees to worry about.
How far is the flight from PDX Airport to MTH?
With a flight distance of 4,400 kilometres between Portland and Marathon, this is a long-haul trip. Be sure to keep well hydrated and move around the cabin every now and then.
Which airlines fly direct from PDX Airport to MTH?
Flying directly between Portland Airport and MTH isn't possible at the moment. However, you'll still be able to find a flight to Marathon with at least one stop.
Are Portland Airport to MTH flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an awesome last-minute deal from PDX Airport to MTH, but it's also possible to miss out altogether! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares carrier prices and updates flight deals often, so you can rest easy knowing you're always getting the latest offers.

Explore a world of travel with Expedia

*Available to Expedia members.