$752 Cheap Flights from Naples (NAP) to St. Louis (STL)

View $752 flight on Wed, Aug 27, 2025Opens in a new window

Popular airlines from Naples Intl. Airport (NAP) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Naples to St. Louis (NAP-STL)

Prices were available within the past 7 days and start at $752 for one-way flights and $792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Nov 13 - Sun, Nov 23
NAP
Naples
STL
St. Louis
$792 Roundtrip, found 5 days ago
$792
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Nov 13 from Naples to St. Louis, returning Sun, Nov 23, priced at $792 found 5 days ago
United
Tue, Aug 26 - Thu, Sep 4
NAP
Naples
STL
St. Louis
$792 Roundtrip, found 1 day ago
$792
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 26 from Naples to St. Louis, returning Thu, Sep 4, priced at $792 found 1 day ago
Lufthansa
Thu, Nov 13 - Sun, Nov 23
NAP
Naples
STL
St. Louis
$794 Roundtrip, found 5 days ago
$794
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Nov 13 from Naples to St. Louis, returning Sun, Nov 23, priced at $794 found 5 days ago
Austrian Airlines
Thu, Nov 13 - Sun, Nov 23
NAP
Naples
STL
St. Louis
$795 Roundtrip, found 5 days ago
$795
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Thu, Nov 13 from Naples to St. Louis, returning Sun, Nov 23, priced at $795 found 5 days ago
Austrian Airlines
Thu, Nov 13 - Sun, Nov 23
NAP
Naples
STL
St. Louis
$798 Roundtrip, found 5 days ago
$798
Roundtrip
found 5 days ago
Select Austrian Airlines flight, departing Thu, Nov 13 from Naples to St. Louis, returning Sun, Nov 23, priced at $798 found 5 days ago
Lufthansa
Tue, Aug 26 - Thu, Sep 4
NAP
Naples
STL
St. Louis
$798 Roundtrip, found 1 day ago
$798
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Aug 26 from Naples to St. Louis, returning Thu, Sep 4, priced at $798 found 1 day ago
United
Tue, Aug 26 - Thu, Sep 4
NAP
Naples
STL
St. Louis
$799 Roundtrip, found 1 day ago
$799
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 26 from Naples to St. Louis, returning Thu, Sep 4, priced at $799 found 1 day ago
Air Canada
Tue, Aug 26 - Thu, Sep 4
NAP
Naples
STL
St. Louis
$804 Roundtrip, found 1 day ago
$804
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Aug 26 from Naples to St. Louis, returning Thu, Sep 4, priced at $804 found 1 day ago
Air Canada
Thu, Sep 25 - Sat, Oct 4
NAP
Naples
STL
St. Louis
$805 Roundtrip, found 6 days ago
$805
Roundtrip
found 6 days ago
Select Air Canada flight, departing Thu, Sep 25 from Naples to St. Louis, returning Sat, Oct 4, priced at $805 found 6 days ago
Swiss International Air Lines
Tue, Aug 26 - Thu, Sep 4
NAP
Naples
STL
St. Louis
$813 Roundtrip, found 1 day ago
$813
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, Aug 26 from Naples to St. Louis, returning Thu, Sep 4, priced at $813 found 1 day ago

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 $913
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $913
Flights from Naples (NAP) to St. Louis (STL)
Origin airport
Naples Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$791
Distance
5175 mi

Naples to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Naples 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 Naples 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 Naples to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $752 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 Naples 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 Naples 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 Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from NAP 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 NAP to STL?
The cheapest flights from NAP 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 NAP to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from NAP to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from NAP to STL?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL)?
To touch down at Lambert-St. Louis Intl. Airport (STL) without delays, opt for a flight that leaves Naples Intl. Airport (NAP) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your plane ticket from NAP to STL shortly before your journey is generally more expensive. However, if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a NAP to STL flight and hotel package?
You'll generally save money by securing a NAP to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your NAP to STL flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.