Cheap Flights from Lyon (LYS) to St. Louis (CPS)

Popular airlines from Saint-Exupery Airport (LYS) to St. Louis, MO (CPS-St. Louis Downtown)

Frequently asked questions

How much does a flight from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS) cost?
Snag a cheap one-way flight or cheap return flight from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS)?
The cheapest month to fly from LYS to CPS is , when there's less demand. Off-peak months are typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS)?
To find the cheapest airline flying from LYS to CPS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS)?
There aren't any daily direct flights from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from LYS to CPS?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS)?
To touch down at St. Louis Downtown Airport (CPS) without delays, select a flight that leaves from Saint-Exupery Airport (LYS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS) last-minute?
Booking your plane ticket from LYS to CPS shortly before your trip is generally more expensive. But if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a LYS to CPS flight and hotel package?
Compared with arranging hotels and flights separately, booking a LYS to CPS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and choose from our wide range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Saint-Exupery Airport (LYS) to St. Louis Downtown Airport (CPS)?
Typically, you're able to cancel or reschedule your LYS to CPS flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want more details, go to our Customer Service portal.

Travel information

Origin airport
Saint-Exupery
Destination airport
St. Louis Downtown
Distance
4603 mi

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Lyon to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Lyon 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 Lyon 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 Lyon to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Lyon 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 Lyon 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.

 

Lyon to St. Louis Flights

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*Available to One Key members.