$109 Cheap Flights from Gulfport (GPT) to St. Louis (STL)

View $109 flight on Sat, Aug 30, 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 $109 for one-way flights and $233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Aug 30 - Mon, Sep 15
GPT
Gulfport
STL
St. Louis
$233 Roundtrip, found 20 hours ago
$233
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, Aug 30 from Gulfport to St. Louis, returning Mon, Sep 15, priced at $233 found 20 hours ago
Delta
Tue, Aug 19 - Sun, Aug 31
GPT
Gulfport
STL
St. Louis
$238 Roundtrip, found 20 hours ago
$238
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Aug 19 from Gulfport to St. Louis, returning Sun, Aug 31, priced at $238 found 20 hours ago
American Airlines
Mon, Sep 22 - Sat, Sep 27
GPT
Gulfport
STL
St. Louis
$249 Roundtrip, found 4 hours ago
$249
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Mon, Sep 22 from Gulfport to St. Louis, returning Sat, Sep 27, priced at $249 found 4 hours ago
United
Thu, Sep 25 - Mon, Sep 29
GPT
Gulfport
STL
St. Louis
$249 Roundtrip, found 4 days ago
$249
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 25 from Gulfport to St. Louis, returning Mon, Sep 29, priced at $249 found 4 days ago
Delta
Tue, Aug 19 - Tue, Sep 2
GPT
Gulfport
STL
St. Louis
$254 Roundtrip, found 20 hours ago
$254
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Aug 19 from Gulfport to St. Louis, returning Tue, Sep 2, priced at $254 found 20 hours ago
Delta
Thu, Nov 27 - Thu, Dec 4
GPT
Gulfport
STL
St. Louis
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Gulfport to St. Louis, returning Thu, Dec 4, priced at $258 found 2 days ago
Delta
Fri, Aug 15 - Tue, Aug 19
GPT
Gulfport
STL
St. Louis
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Aug 15 from Gulfport to St. Louis, returning Tue, Aug 19, priced at $259 found 1 day ago
American Airlines
Fri, Aug 15 - Fri, Aug 22
GPT
Gulfport
STL
St. Louis
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 15 from Gulfport to St. Louis, returning Fri, Aug 22, priced at $259 found 1 day ago
Delta
Sun, Aug 17 - Sun, Aug 31
GPT
Gulfport
STL
St. Louis
$263 Roundtrip, found 20 hours ago
$263
Roundtrip
found 20 hours ago
Select Delta flight, departing Sun, Aug 17 from Gulfport to St. Louis, returning Sun, Aug 31, priced at $263 found 20 hours ago
United
Thu, Sep 25 - Mon, Sep 29
GPT
Gulfport
STL
St. Louis
$265 Roundtrip, found 4 days ago
$265
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 25 from Gulfport to St. Louis, returning Mon, Sep 29, priced at $265 found 4 days ago

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

September is typically the cheapest month to fly

From $198 - $533 per traveler.

Graph displaying average flight prices per month

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 $263
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $263
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
$232
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 August. 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 $109 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?
Discover the latest flight deals from GPT to STL 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 GPT to STL?
The cheapest flights from GPT to STL 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 GPT to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GPT to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.