$438 Cheap Flights from St. Louis (STL) to Paris (CDG)

View $438 flight on Sun, May 10, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Paris Charles de Gaulle Airport (CDG)

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Cheap Flights from St. Louis to Paris (STL-CDG)

Prices were available within the past 7 days and start at $438 for one-way flights and $646 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, May 6 - Wed, May 13
STL
St. Louis
CDG
Paris
$646 Roundtrip, found 11 hours ago
$646
Roundtrip
found 11 hours ago
Select United flight, departing Wed, May 6 from St. Louis to Paris, returning Wed, May 13, priced at $646 found 11 hours ago
United
Sun, Oct 12 - Wed, Nov 12
STL
St. Louis
CDG
Paris
$647 Roundtrip, found 5 days ago
$647
Roundtrip
found 5 days ago
Select United flight, departing Sun, Oct 12 from St. Louis to Paris, returning Wed, Nov 12, priced at $647 found 5 days ago
United
Mon, Dec 1 - Wed, Dec 17
STL
St. Louis
CDG
Paris
$649 Roundtrip, just found
$649
Roundtrip
just found
Select United flight, departing Mon, Dec 1 from St. Louis to Paris, returning Wed, Dec 17, priced at $649 just found
United
Mon, Nov 10 - Wed, Nov 26
STL
St. Louis
CDG
Paris
$649 Roundtrip, found 9 hours ago
$649
Roundtrip
found 9 hours ago
Select United flight, departing Mon, Nov 10 from St. Louis to Paris, returning Wed, Nov 26, priced at $649 found 9 hours ago
United
Sun, Mar 8 - Fri, Mar 20
STL
St. Louis
CDG
Paris
$650 Roundtrip, found 10 hours ago
$650
Roundtrip
found 10 hours ago
Select United flight, departing Sun, Mar 8 from St. Louis to Paris, returning Fri, Mar 20, priced at $650 found 10 hours ago
Air Canada
Mon, Nov 17 - Thu, Nov 27
STL
St. Louis
CDG
Paris
$650 Roundtrip, found 1 day ago
$650
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Nov 17 from St. Louis to Paris, returning Thu, Nov 27, priced at $650 found 1 day ago
United
Tue, Oct 28 - Fri, Nov 7
STL
St. Louis
CDG
Paris
$651 Roundtrip, found 10 hours ago
$651
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Oct 28 from St. Louis to Paris, returning Fri, Nov 7, priced at $651 found 10 hours ago
Iberia
Wed, Feb 18 - Wed, Feb 25
STL
St. Louis
CDG
Paris
$664 Roundtrip, found 10 hours ago
$664
Roundtrip
found 10 hours ago
Select Iberia flight, departing Wed, Feb 18 from St. Louis to Paris, returning Wed, Feb 25, priced at $664 found 10 hours ago
Delta
Mon, Dec 29 - Tue, Jan 13
STL
St. Louis
CDG
Paris
$669 Roundtrip, just found
$669
Roundtrip
just found
Select Delta flight, departing Mon, Dec 29 from St. Louis to Paris, returning Tue, Jan 13, priced at $669 just found
Virgin Atlantic
Wed, Feb 18 - Wed, Feb 25
STL
St. Louis
CDG
Paris
$670 Roundtrip, found 10 hours ago
$670
Roundtrip
found 10 hours ago
Select Virgin Atlantic flight, departing Wed, Feb 18 from St. Louis to Paris, returning Wed, Feb 25, priced at $670 found 10 hours ago

Find the cheapest month to fly from St. Louis (STL) to Paris (CDG)

November is typically the cheapest month to fly

From $565 - $1,230 per traveler.

Graph displaying average flight prices per month

Alternative airports near Paris

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Roissy-Charles de Gaulle CDG. Cheapest option available. Average driving time to city center is 35 minutes. Flights from $869
CDG
Roissy-Charles de Gaulle
Cheapest
Average driving time to city center35 min
Flights from $869
Flights from St. Louis (STL) to Paris (CDG)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Roissy-Charles de Gaulle
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$645
Distance
4387 mi

St. Louis to Paris Flights

The cheapest times to fly from St. Louis to Paris

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

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Paris: 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 St. Louis to Paris

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 St. Louis to Paris in 2025. You can also book with separate airlines for your outbound and return journeys, from $438 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 St. Louis to Paris 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 St. Louis to Paris 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 Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG) cost?
Discover the latest flight deals from STL to CDG 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 STL to CDG?
The cheapest flights from STL to CDG 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 STL to CDG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to CDG. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG)?
You'll have to take a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to CDG?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, including the carrier 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 Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG) route, fly before 3 PM. Departures after this time 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 Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG) last-minute?
Last-minute bookings from STL to CDG are usually more expensive. To secure the cheapest rates, start searching for flights as early as possible. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a STL to CDG flight and hotel package?
Securing a STL to CDG flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of hotels 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 Lambert-St. Louis Intl. Airport (STL) to Roissy-Charles de Gaulle Airport (CDG)?
In most instances, you're able to cancel or reschedule your STL to CDG flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want further details, head to our Customer Service portal.

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