$545 Cheap Flights from Anchorage (ANC) to St. Marys (KSM)

View $545 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys, AK (KSM)

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Cheap Flights from Anchorage to St. Marys (ANC-KSM)

Prices were available within the past 7 days and start at $545 for one-way flights and $1,091 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

New Pacific Airlines
Wed, Dec 3 - Wed, Dec 17
ANC
Anchorage
KSM
St. Mary's
$1,091 Roundtrip, found 1 day ago
$1,091
Roundtrip
found 1 day ago
Select New Pacific Airlines flight, departing Wed, Dec 3 from Anchorage to St. Mary's, returning Wed, Dec 17, priced at $1,091 found 1 day ago
New Pacific Airlines
Wed, Nov 5 - Wed, Nov 19
ANC
Anchorage
KSM
St. Mary's
$1,115 Roundtrip, found 1 day ago
$1,115
Roundtrip
found 1 day ago
Select New Pacific Airlines flight, departing Wed, Nov 5 from Anchorage to St. Mary's, returning Wed, Nov 19, priced at $1,115 found 1 day ago
Flights from Anchorage (ANC) to St. Marys (KSM)
Origin airport
Ted Stevens Anchorage Intl.
Destination airport
St. Marys
Roundtrip price
$1,090
Distance
438 mi

Anchorage to St. Marys Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Anchorage 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 Anchorage 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 Anchorage to St. Marys in 2025. You can also book with separate airlines for your outbound and return journeys, from $545 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 Anchorage 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 Anchorage 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 Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM) cost?
Lock in a cheap one-way flight from $545 or cheap return flight from $1,091 from Ted Stevens Anchorage Intl. Airport (ANC) 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 Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
Flying in December is a good way to save, as it's the cheapest month for flights between ANC and KSM. You'll often find the lowest fares during off-peak months.
Which airlines fly direct from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
Jump on a nonstop flight with Ravn Alaska and journey straight from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM).
What is the cheapest airline that flies from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
To find the cheapest airline flying from ANC to KSM, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
On average you can take your pick of 3 direct flights every week from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM). For more flexibility, consider a flight with a layover. Simply enter your details on Expedia and then filter your search to show one stop or more.
What are the most popular departure times for flights from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
The 11 AM departures from ANC to KSM see the highest demand. They can also be more expensive. If you want to save on your fare, book during off-peak hours.
What day of the week has the most flights from ANC to KSM?
Friday offers the most flights from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
Ted Stevens Anchorage Intl. Airport (ANC)'s first flight to St. Marys Airport (KSM) takes off at approximately 11:40AM UTC-9. With a flight time of 2h, you'll arrive at around 1:40PM UTC-9.
How long does it take to fly from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
It takes approximately 2 hours to cover the 440 mi from ANC to KSM.
What is the best time to fly from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
Opt for a flight from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time 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.
What airports do you fly into for St. Mary's from Ted Stevens Anchorage Intl. Airport (ANC)?
St. Marys Airport (KSM) is the only airport in St. Mary's with direct flights from Ted Stevens Anchorage Intl. Airport (ANC). Explore the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM) last-minute?
Waiting until just before your trip to book a flight from ANC to KSM often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book an ANC to KSM flight and hotel package?
You can save money by securing an ANC to KSM flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Ted Stevens Anchorage Intl. Airport (ANC) to St. Marys Airport (KSM)?
If you reserved your ANC to KSM flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.