Cheap Flights from Columbus (CMH) to St. Marys (KSM)

Popular airlines from John Glenn Columbus Intl. Airport (CMH) to St. Marys, AK (KSM)

Flights from Columbus (CMH) to St. Marys (KSM)
Origin airport
John Glenn Columbus Intl.
Destination airport
St. Marys
Distance
3530 mi

Columbus to St. Marys Flights

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

 

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

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

 

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM) cost?
Lock in a cheap one-way flight or cheap return flight from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM)?
is the most affordable month to fly from CMH to KSM. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM)?
To find the cheapest airline that'll fly you from CMH to KSM, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM)?
You'll need to book a flight with a layover if you're traveling from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from CMH to KSM?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM)?
To avoid potential delays on the John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of being 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 John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM) last-minute?
Holding off until right before your break to book a flight from CMH to KSM often results in higher prices. While you may find some last-minute deals, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a CMH to KSM flight and hotel package?
Compared with arranging flights and hotels separately, booking a CMH to KSM flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place will take the stress out of travel planning. Simply pick your flights and choose from our wide range of hotels, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from John Glenn Columbus Intl. Airport (CMH) to St. Marys Airport (KSM)?
In most cases, you can cancel or modify your CMH to KSM flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further information, visit our Customer Service portal.

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*Available to One Key members.