Cheap Flights from Harrisburg (MDT) to St. Marys (KSM)

Popular airlines from Harrisburg Intl. Airport (MDT) to St. Marys, AK (KSM)

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Frequently asked questions

How much does a flight from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM) cost?
Get a cheap one-way flight or cheap return flight from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM) 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 Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM)?
The cheapest month to fly from MDT to KSM is , when there's less demand. Off-peak months are often when better flight deals are available between these airports.
What is the cheapest airline that flies from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM)?
To find the cheapest airline that'll fly you from MDT to KSM, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM)?
Direct flights from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MDT to KSM?
You'll generally find Tuesday the quietest day for flights, while Fridays are often 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 Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM)?
To avoid potential delays on the Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM) route, fly before 3 PM. Later departures are 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 Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM) last-minute?
Booking your ticket from MDT to KSM just before your trip is generally more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a MDT to KSM flight and hotel package?
Opting for a MDT to KSM flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harrisburg Intl. Airport (MDT) to St. Marys Airport (KSM)?
If you reserved your MDT to KSM flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare 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, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Harrisburg Intl.
Destination airport
St. Marys
Distance
3710 mi

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Harrisburg to St. Marys Flights

The cheapest times to fly from Harrisburg to St. Marys

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

 

The best time to book a flight from Harrisburg to St. Marys

Sunday is one of the best days to book for cheap flights from Harrisburg to St. Marys: 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 Harrisburg to St. Marys

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 Harrisburg to St. Marys 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 Harrisburg to St. Marys 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 Harrisburg to St. Marys 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.

 

Harrisburg to St. Marys Flights

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