$504 Cheap Flights from Naples (NAP) to St. Louis (STL)

View $504 flight on Fri, Apr 10, 2026Opens 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 $504 for one-way flights and $723 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Thu, Nov 27 - Tue, Dec 9
NAP
Naples
STL
St. Louis
$723 Roundtrip, found 11 hours ago
$723
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Thu, Nov 27 from Naples to St. Louis, returning Tue, Dec 9, priced at $723 found 11 hours ago
Lufthansa
Sun, Nov 16 - Wed, Nov 26
NAP
Naples
STL
St. Louis
$734 Roundtrip, found 11 hours ago
$734
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sun, Nov 16 from Naples to St. Louis, returning Wed, Nov 26, priced at $734 found 11 hours ago
Lufthansa
Sun, Nov 16 - Wed, Nov 26
NAP
Naples
STL
St. Louis
$736 Roundtrip, found 11 hours ago
$736
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sun, Nov 16 from Naples to St. Louis, returning Wed, Nov 26, priced at $736 found 11 hours ago
Lufthansa
Thu, Nov 27 - Tue, Dec 9
NAP
Naples
STL
St. Louis
$814 Roundtrip, found 11 hours ago
$814
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Thu, Nov 27 from Naples to St. Louis, returning Tue, Dec 9, priced at $814 found 11 hours ago
Austrian Airlines
Thu, Nov 27 - Tue, Dec 9
NAP
Naples
STL
St. Louis
$814 Roundtrip, found 11 hours ago
$814
Roundtrip
found 11 hours ago
Select Austrian Airlines flight, departing Thu, Nov 27 from Naples to St. Louis, returning Tue, Dec 9, priced at $814 found 11 hours ago
Iberia
Fri, Oct 3 - Tue, Oct 7
NAP
Naples
STL
St. Louis
$817 Roundtrip, found 3 days ago
$817
Roundtrip
found 3 days ago
Select Iberia flight, departing Fri, Oct 3 from Naples to St. Louis, returning Tue, Oct 7, priced at $817 found 3 days ago
Lufthansa
Thu, Nov 27 - Tue, Dec 9
NAP
Naples
STL
St. Louis
$818 Roundtrip, found 11 hours ago
$818
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Thu, Nov 27 from Naples to St. Louis, returning Tue, Dec 9, priced at $818 found 11 hours ago
Lufthansa
Sun, Nov 16 - Wed, Nov 26
NAP
Naples
STL
St. Louis
$819 Roundtrip, found 11 hours ago
$819
Roundtrip
found 11 hours ago
Select Lufthansa flight, departing Sun, Nov 16 from Naples to St. Louis, returning Wed, Nov 26, priced at $819 found 11 hours ago
British Airways
Sun, Nov 30 - Wed, Dec 10
NAP
Naples
STL
St. Louis
$861 Roundtrip, found 11 hours ago
$861
Roundtrip
found 11 hours ago
Select British Airways flight, departing Sun, Nov 30 from Naples to St. Louis, returning Wed, Dec 10, priced at $861 found 11 hours ago
Aer Lingus
Fri, Oct 3 - Tue, Oct 7
NAP
Naples
STL
St. Louis
$1,230 Roundtrip, found 3 days ago
$1,230
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Fri, Oct 3 from Naples to St. Louis, returning Tue, Oct 7, priced at $1,230 found 3 days ago

Frequently asked questions

How much does a flight from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $504 or cheap return flight from $723 from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL)?
November is the least expensive month to fly from NAP to STL. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Naples Intl. Airport (NAP) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from NAP to STL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
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.

Travel information

Travel information

Origin airport
Naples Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, Air Canada, Austrian Airlines, British Airways, Brussels Airlines, Iberia, Lufthansa, Turkish Airlines
Roundtrip price
$723
Distance
5175 mi

Book with confidence

Book with confidence

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 $504 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.

 

Naples to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.