$541 Cheap Flights from Turin (TRN) to St. Louis (STL)

View $541 flight on Fri, Apr 24, 2026Opens in a new window

Popular airlines from Turin to St. Louis, MO (STL-Lambert-St. Louis Intl.)

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Cheap Flights from Turin to St. Louis (TRN-STL)

Prices were available within the past 7 days and start at $541 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL) cost?
Lock in a cheap one-way flight from $541 or cheap return flight from Turin Intl. Airport (TRN) 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 Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL)?
is the cheapest month to fly from TRN to STL. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from TRN to STL. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL)?
There are no daily direct flights available from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from TRN to STL?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL)?
Select a flight from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 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 Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your flight from TRN to STL right before your trip is typically more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a TRN to STL flight and hotel package?
Opting for a TRN to STL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Turin Intl. Airport (TRN) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your TRN to STL flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Turin Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
4728 mi

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Turin to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Turin 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 Turin 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 Turin to St. Louis in 2026. You can also book with separate airlines for your outbound and return journeys, from $541 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 Turin 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 Turin 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.

 

Turin to St. Louis Flights

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*Available to One Key members.