$274 Cheap Flights from St. Louis (STL) to Gillette (GCC)

View $274 flight on Sun, Aug 3, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Gillette, WY (GCC-Campbell County)

Cheap Flights from St. Louis to Gillette (STL-GCC)

Prices were available within the past 7 days and start at $274 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 11 - Sat, Aug 23
STL
St. Louis
GCC
Gillette
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 11 from St. Louis to Gillette, returning Sat, Aug 23, priced at $308 found 1 day ago
United
Mon, Aug 25 - Wed, Sep 10
STL
St. Louis
GCC
Gillette
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 25 from St. Louis to Gillette, returning Wed, Sep 10, priced at $314 found 1 day ago
United
Tue, Jul 1 - Thu, Jul 10
STL
St. Louis
GCC
Gillette
$343 Roundtrip, found 2 days ago
$343
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 1 from St. Louis to Gillette, returning Thu, Jul 10, priced at $343 found 2 days ago
United
Tue, Jul 1 - Wed, Jul 9
STL
St. Louis
GCC
Gillette
$349 Roundtrip, found 2 days ago
$349
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 1 from St. Louis to Gillette, returning Wed, Jul 9, priced at $349 found 2 days ago
United
Sun, Aug 10 - Sat, Aug 23
STL
St. Louis
GCC
Gillette
$353 Roundtrip, found 1 day ago
$353
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 10 from St. Louis to Gillette, returning Sat, Aug 23, priced at $353 found 1 day ago
United
Thu, Jul 10 - Thu, Jul 31
STL
St. Louis
GCC
Gillette
$358 Roundtrip, found 1 day ago
$358
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 10 from St. Louis to Gillette, returning Thu, Jul 31, priced at $358 found 1 day ago
United
Sat, Jul 12 - Thu, Jul 31
STL
St. Louis
GCC
Gillette
$364 Roundtrip, found 1 day ago
$364
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jul 12 from St. Louis to Gillette, returning Thu, Jul 31, priced at $364 found 1 day ago
United
Sun, Jun 29 - Wed, Jul 9
STL
St. Louis
GCC
Gillette
$369 Roundtrip, found 2 days ago
$369
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jun 29 from St. Louis to Gillette, returning Wed, Jul 9, priced at $369 found 2 days ago
United
Sat, Sep 6 - Tue, Sep 9
STL
St. Louis
GCC
Gillette
$376 Roundtrip, found 5 days ago
$376
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 6 from St. Louis to Gillette, returning Tue, Sep 9, priced at $376 found 5 days ago
United
Mon, Aug 4 - Sat, Aug 23
STL
St. Louis
GCC
Gillette
$377 Roundtrip, found 6 days ago
$377
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 4 from St. Louis to Gillette, returning Sat, Aug 23, priced at $377 found 6 days ago

Alternative airports near Gillette

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Campbell County GCC. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $358
GCC
Campbell County
CheapestClosest
Average driving time to city center8 min
Flights from $358
Flights from St. Louis (STL) to Gillette (GCC)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Campbell County
Roundtrip price
$308
Distance
872 mi

St. Louis to Gillette Flights

The cheapest times to fly from St. Louis to Gillette

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

 

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

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

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 Gillette in 2025. You can also book with separate airlines for your outbound and return journeys, from $274 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 Gillette 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 Gillette 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 Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC) cost?
Discover the latest flight deals from STL to GCC by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to GCC?
The cheapest flights from STL to GCC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to GCC?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to GCC. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to GCC?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, 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 Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this 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 Campbell County Airport (GCC) last-minute?
Last-minute bookings from STL to GCC are generally more expensive. To lock in the best rates, start looking for flights well ahead of time. That said, if you're flexible with your travel plans, you may find a cheap ticket right before your journey.
Is it cheaper to book a STL to GCC flight and hotel package?
You'll typically save money by booking a STL to GCC flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Campbell County Airport (GCC)?
In most cases, you can modify or cancel your STL to GCC flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.