$125 Cheap Flights from Gulfport (GPT) to St. Louis (STL)

View $125 flight on Sun, Jan 18, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $125 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Nov 24 - Tue, Dec 2
GPT
Gulfport
STL
St. Louis
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 24 from Gulfport to St. Louis, returning Tue, Dec 2, priced at $249 found 1 day ago
United
Wed, Dec 3 - Sat, Dec 6
GPT
Gulfport
STL
St. Louis
$249 Roundtrip, found 2 days ago
$249
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 3 from Gulfport to St. Louis, returning Sat, Dec 6, priced at $249 found 2 days ago
United
Fri, Nov 21 - Sun, Nov 23
GPT
Gulfport
STL
St. Louis
$269 Roundtrip, found 6 days ago
$269
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 21 from Gulfport to St. Louis, returning Sun, Nov 23, priced at $269 found 6 days ago
United
Fri, Nov 21 - Sun, Nov 23
GPT
Gulfport
STL
St. Louis
$271 Roundtrip, found 6 days ago
$271
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 21 from Gulfport to St. Louis, returning Sun, Nov 23, priced at $271 found 6 days ago
Delta
Sat, Jan 10 - Sun, Jan 25
GPT
Gulfport
STL
St. Louis
$274 Roundtrip, found 5 days ago
$274
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 10 from Gulfport to St. Louis, returning Sun, Jan 25, priced at $274 found 5 days ago
American Airlines
Thu, Dec 4 - Sun, Dec 7
GPT
Gulfport
STL
St. Louis
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 4 from Gulfport to St. Louis, returning Sun, Dec 7, priced at $279 found 1 day ago
Delta
Tue, Nov 4 - Mon, Nov 17
GPT
Gulfport
STL
St. Louis
$284 Roundtrip, found 5 days ago
$284
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 4 from Gulfport to St. Louis, returning Mon, Nov 17, priced at $284 found 5 days ago
United
Thu, Nov 6 - Wed, Nov 12
GPT
Gulfport
STL
St. Louis
$289 Roundtrip, found 5 days ago
$289
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 6 from Gulfport to St. Louis, returning Wed, Nov 12, priced at $289 found 5 days ago
United
Thu, Apr 30 - Sat, May 2
GPT
Gulfport
STL
St. Louis
$291 Roundtrip, found 5 days ago
$291
Roundtrip
found 5 days ago
Select United flight, departing Thu, Apr 30 from Gulfport to St. Louis, returning Sat, May 2, priced at $291 found 5 days ago
United
Fri, Nov 21 - Sun, Nov 23
GPT
Gulfport
STL
St. Louis
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 21 from Gulfport to St. Louis, returning Sun, Nov 23, priced at $292 found 6 days 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.

Alternative airports near St. Louis

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

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $505
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $505
Flights from Gulfport (GPT) to St. Louis (STL)
Origin airport
Gulfport - Biloxi Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$248
Distance
580 mi
Average flight time
1 hour 40 mins

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 November. 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 $125 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.

 

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 $125 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)?
November 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.

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*Available to One Key members.