Cheap flights from Gillette to St. Louis (GCC to STL)

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

United
United

Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 30% on select hotels after you book a flight*
Earn twice
Earn your airline miles on top of our OneKeyCash
Learn about One Key

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

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

All deals

One way

Roundtrip

Fri, Nov 28 - Wed, Dec 3

GCC

Gillette

STL

St. Louis

$308

Roundtrip

found 6 days ago

Sat, Nov 22 - Wed, Dec 3

GCC

Gillette

STL

St. Louis

$323

Roundtrip

found 6 days ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$358

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$364

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$428

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$430

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$434

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$435

Roundtrip

found 16 hours ago

Fri, Nov 28 - Tue, Dec 2

GCC

Gillette

STL

St. Louis

$458

Roundtrip

found 6 days ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$472

Roundtrip

found 16 hours ago

Sat, Nov 22 - Tue, Dec 2

GCC

Gillette

STL

St. Louis

$473

Roundtrip

found 6 days ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$478

Roundtrip

found 16 hours ago

Sat, Nov 22 - Wed, Nov 26

GCC

Gillette

STL

St. Louis

$479

Roundtrip

found 6 days ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$485

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$498

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$500

Roundtrip

found 16 hours ago

Sun, Nov 23 - Wed, Nov 26

GCC

Gillette

STL

St. Louis

$502

Roundtrip

found 6 days ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$504

Roundtrip

found 16 hours ago

Thu, Nov 13 - Sun, Nov 16

GCC

Gillette

STL

St. Louis

$505

Roundtrip

found 16 hours ago

Fri, Nov 28 - Mon, Dec 1

GCC

Gillette

STL

St. Louis

$527

Roundtrip

found 6 days ago

Alternative airports near St. Louis

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

STL

Lambert-St. Louis Intl.

Cheapest

20 min

Flights from $619

Frequently asked questions

How much does a flight from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL) cost?

Get a cheap one-way flight or cheap return flight from $308 from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.

What is the cheapest month to fly from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL)?

November is the most affordable month to fly from GCC to STL. Traveling outside of peak seasons is often the key to landing a great deal.

What is the cheapest airline that flies from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL)?

Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from GCC to STL. Then, sort your results by "Price (lowest to highest)" to score the best deal available.

How many flights per day from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL)?

You'll need to take a flight with a layover when traveling from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.

What day of the week has the most flights from GCC to STL?

Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.

What is the best time to fly from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL)?

Opt for a flight from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL) that takes off before 3 PM to reduce the likelihood 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.

Is it cheaper to buy a plane ticket from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL) last-minute?

Booking your ticket from GCC to STL right before your trip is generally more expensive. But 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 GCC to STL flight and hotel package?

You'll generally save money by securing a GCC to STL 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 everything in one place. After choosing your ideal accommodations and flights, you can add extras like car rentals, activities and tours.

Can I cancel or change the date of my flight from Campbell County Airport (GCC) to Lambert-St. Louis Intl. Airport (STL)?

If you booked your GCC to STL flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport	Campbell County
Destination airport	Lambert-St. Louis Intl.
Roundtrip price	$308
Distance	872 mi

Book with confidence

Gillette to St. Louis Flights

The cheapest times to fly from Gillette to St. Louis

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

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

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

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 Gillette to St. Louis 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 Gillette to St. Louis 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 Gillette to St. Louis 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.

Explore a world of travel with Expedia

St. Ann Vacation Rentals

*Available to One Key members.

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

Travelers

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

Be in the know

Book smarter

Earn twice

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

Alternative airports near St. Louis

Frequently asked questions

Travel information

Book with confidence

Gillette to St. Louis Flights

Explore a world of travel with Expedia