$100 Cheap Flights from Gulfport (GPT) to St. Louis (STL)

View $100 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Gulfport - Biloxi Intl. Airport (GPT) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Gulfport to St. Louis (GPT-STL)

Prices were available within the past 7 days and start at $100 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Dec 9 - Tue, Dec 16
GPT
Gulfport
STL
St. Louis
$249 Roundtrip, found 6 hours ago
$249
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Dec 9 from Gulfport to St. Louis, returning Tue, Dec 16, priced at $249 found 6 hours ago
American Airlines
Thu, Oct 2 - Tue, Oct 7
GPT
Gulfport
STL
St. Louis
$254 Roundtrip, found 8 hours ago
$254
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Oct 2 from Gulfport to St. Louis, returning Tue, Oct 7, priced at $254 found 8 hours ago
American Airlines
Fri, Oct 3 - Sat, Oct 4
GPT
Gulfport
STL
St. Louis
$254 Roundtrip, found 5 days ago
$254
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 3 from Gulfport to St. Louis, returning Sat, Oct 4, priced at $254 found 5 days ago
United
Thu, Oct 23 - Mon, Oct 27
GPT
Gulfport
STL
St. Louis
$256 Roundtrip, found 8 hours ago
$256
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 23 from Gulfport to St. Louis, returning Mon, Oct 27, priced at $256 found 8 hours ago
United
Thu, Oct 23 - Mon, Oct 27
GPT
Gulfport
STL
St. Louis
$257 Roundtrip, found 8 hours ago
$257
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 23 from Gulfport to St. Louis, returning Mon, Oct 27, priced at $257 found 8 hours ago
United
Wed, Oct 1 - Mon, Oct 6
GPT
Gulfport
STL
St. Louis
$259 Roundtrip, found 19 hours ago
$259
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Oct 1 from Gulfport to St. Louis, returning Mon, Oct 6, priced at $259 found 19 hours ago
American Airlines
Fri, Sep 26 - Fri, Oct 3
GPT
Gulfport
STL
St. Louis
$259 Roundtrip, found 4 days ago
$259
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Sep 26 from Gulfport to St. Louis, returning Fri, Oct 3, priced at $259 found 4 days ago
United
Thu, Sep 25 - Tue, Sep 30
GPT
Gulfport
STL
St. Louis
$264 Roundtrip, found 5 days ago
$264
Roundtrip
found 5 days ago
Select United flight, departing Thu, Sep 25 from Gulfport to St. Louis, returning Tue, Sep 30, priced at $264 found 5 days ago
American Airlines
Thu, Dec 25 - Thu, Jan 1
GPT
Gulfport
STL
St. Louis
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 25 from Gulfport to St. Louis, returning Thu, Jan 1, priced at $269 found 1 day ago
Delta
Mon, Dec 8 - Tue, Dec 16
GPT
Gulfport
STL
St. Louis
$274 Roundtrip, found 6 hours ago
$274
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Dec 8 from Gulfport to St. Louis, returning Tue, Dec 16, priced at $274 found 6 hours ago

Find the cheapest month to fly from Gulfport (GPT) to St. Louis (STL)

August is typically the cheapest month to fly

From $218 - $476 per traveler.

Frequently asked questions

How much does a flight from Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $100 or cheap return flight from $249 from Gulfport - Biloxi Intl. Airport (GPT) 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 Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL)?
December is the least expensive month to fly from GPT to STL. 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 Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest GPT to STL flight.
How many flights per day from Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL)?
There are no daily nonstop flights from Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from GPT to STL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL)?
To avoid potential delays on the Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Later flights are 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 Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your plane ticket from GPT to STL right before your getaway is usually more expensive. But if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a GPT to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a GPT to STL flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Simply secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Gulfport - Biloxi Intl. Airport (GPT) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your GPT to STL 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 purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Gulfport - Biloxi Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$248
Distance
580 mi

Book with confidence

Book with confidence

Gulfport to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Gulfport 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 Gulfport 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 Gulfport to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $100 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 Gulfport 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 Gulfport 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.

 

Gulfport to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.