$387 Cheap Flights from St. Louis (STL) to Sitka (SIT)

View $387 flight on Sun, May 24, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Sitka, AK (SIT)

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Cheap Flights from St. Louis to Sitka (STL-SIT)

Prices were available within the past 7 days and start at $387 for one-way flights and $1,246 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,246 Roundtrip, found 14 hours ago
$1,246
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,246 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,311 Roundtrip, found 14 hours ago
$1,311
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,311 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,351 Roundtrip, found 14 hours ago
$1,351
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,351 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,356 Roundtrip, found 14 hours ago
$1,356
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,356 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,407 Roundtrip, found 14 hours ago
$1,407
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,407 found 14 hours ago
American Airlines
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,446 Roundtrip, found 14 hours ago
$1,446
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,446 found 14 hours ago
American Airlines
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,456 Roundtrip, found 14 hours ago
$1,456
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,456 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,471 Roundtrip, found 14 hours ago
$1,471
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,471 found 14 hours ago
Delta
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,492 Roundtrip, found 14 hours ago
$1,492
Roundtrip
found 14 hours ago
Select Delta flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,492 found 14 hours ago
United
Thu, May 28 - Fri, May 29
STL
St. Louis
SIT
Sitka
$1,495 Roundtrip, found 14 hours ago
$1,495
Roundtrip
found 14 hours ago
Select United flight, departing Thu, May 28 from St. Louis to Sitka, returning Fri, May 29, priced at $1,495 found 14 hours ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT) cost?
Get a cheap one-way flight from $387 or cheap return flight from $1,246 from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT) 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 Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT)?
May is the least expensive month to fly from STL to SIT. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT)?
To find the cheapest airline that'll fly you from STL to SIT, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT)?
You'll have to take a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from STL to SIT?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, carrier 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 Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT) that leaves before 3 PM to reduce the risk of delays and cancellations. 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 Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT) last-minute?
Waiting until right before your break to book a ticket from STL to SIT generally means paying more. While you might find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for a better chance of snagging a bargain.
Is it cheaper to book a STL to SIT flight and hotel package?
Booking a STL to SIT flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our wide range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Sitka Airport (SIT)?
If you reserved your STL to SIT flight in the last 24 hours, you may be able to cancel or modify it at no cost. 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, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Sitka
Roundtrip price
$1,245
Distance
2376 mi

Book with confidence

St. Louis to Sitka Flights

The cheapest times to fly from St. Louis to Sitka

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

 

The best time to book a flight from St. Louis to Sitka

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

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 St. Louis to Sitka in 2026. You can also book with separate airlines for your outbound and return journeys, from $387 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 St. Louis to Sitka 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 St. Louis to Sitka 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.

 

St. Louis to Sitka Flights

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*Available to One Key members.