$455 Cheap Flights from Paris (ORY) to St. Louis (STL)

View $455 flight on Sat, Jan 17, 2026Opens in a new window

Popular airlines from Paris Orly Airport (ORY) to St. Louis Lambert Intl. Airport (STL)

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

Prices were available within the past 7 days and start at $455 for one-way flights and $1,205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Wed, Nov 12 - Thu, Dec 11
ORY
Paris
STL
St. Louis
$1,205 Roundtrip, found 3 days ago
$1,205
Roundtrip
found 3 days ago
Select Iberia flight, departing Wed, Nov 12 from Paris to St. Louis, returning Thu, Dec 11, priced at $1,205 found 3 days ago
Iberia
Wed, Nov 12 - Thu, Dec 11
ORY
Paris
STL
St. Louis
$1,245 Roundtrip, found 3 days ago
$1,245
Roundtrip
found 3 days ago
Select Iberia flight, departing Wed, Nov 12 from Paris to St. Louis, returning Thu, Dec 11, priced at $1,245 found 3 days ago
Iberia
Sat, Mar 14 - Sat, Mar 21
ORY
Paris
STL
St. Louis
$1,276 Roundtrip, found 18 hours ago
$1,276
Roundtrip
found 18 hours ago
Select Iberia flight, departing Sat, Mar 14 from Paris to St. Louis, returning Sat, Mar 21, priced at $1,276 found 18 hours ago
TAP Portugal
Wed, Jan 7 - Mon, Jan 12
ORY
Paris
STL
St. Louis
$1,333 Roundtrip, found 1 day ago
$1,333
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Wed, Jan 7 from Paris to St. Louis, returning Mon, Jan 12, priced at $1,333 found 1 day ago
TAP Portugal
Wed, Jan 7 - Mon, Jan 12
ORY
Paris
STL
St. Louis
$1,340 Roundtrip, found 1 day ago
$1,340
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Wed, Jan 7 from Paris to St. Louis, returning Mon, Jan 12, priced at $1,340 found 1 day ago
Iberia
Wed, Nov 12 - Thu, Dec 11
ORY
Paris
STL
St. Louis
$1,361 Roundtrip, found 3 days ago
$1,361
Roundtrip
found 3 days ago
Select Iberia flight, departing Wed, Nov 12 from Paris to St. Louis, returning Thu, Dec 11, priced at $1,361 found 3 days ago
Iberia
Wed, Nov 12 - Thu, Dec 11
ORY
Paris
STL
St. Louis
$1,402 Roundtrip, found 3 days ago
$1,402
Roundtrip
found 3 days ago
Select Iberia flight, departing Wed, Nov 12 from Paris to St. Louis, returning Thu, Dec 11, priced at $1,402 found 3 days ago
TAP Portugal
Thu, Nov 6 - Sun, Nov 16
ORY
Paris
STL
St. Louis
$1,413 Roundtrip, found 5 days ago
$1,413
Roundtrip
found 5 days ago
Select TAP Portugal flight, departing Thu, Nov 6 from Paris to St. Louis, returning Sun, Nov 16, priced at $1,413 found 5 days ago
Iberia
Sat, Mar 14 - Sat, Mar 21
ORY
Paris
STL
St. Louis
$1,433 Roundtrip, found 18 hours ago
$1,433
Roundtrip
found 18 hours ago
Select Iberia flight, departing Sat, Mar 14 from Paris to St. Louis, returning Sat, Mar 21, priced at $1,433 found 18 hours ago
TAP Portugal
Wed, Jan 7 - Mon, Jan 12
ORY
Paris
STL
St. Louis
$1,449 Roundtrip, found 1 day ago
$1,449
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Wed, Jan 7 from Paris to St. Louis, returning Mon, Jan 12, priced at $1,449 found 1 day ago

Frequently asked questions

How much does a flight from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $455 or cheap return flight from $1,205 from Orly Airport (ORY) 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 offers on this route.
What is the cheapest month to fly from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL)?
November is the cheapest month to fly from ORY to STL. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest ORY to STL flight.
How many flights per day from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORY to STL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL)?
Choose a flight from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the likelihood of delays. Later departures 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 Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from ORY to STL are usually more expensive. For the best rates, start looking for flights as early as possible. That being said, if your travel plans are flexible, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book an ORY to STL flight and hotel package?
You'll typically save money by booking an ORY 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 everything in one place. After choosing your preferred accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Orly Airport (ORY) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your ORY to STL flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Orly
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Iberia
Roundtrip price
$1,204
Distance
4388 mi

Book with confidence

Paris to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Paris 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 Paris 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 Paris to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $455 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 Paris 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 Paris 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.

 

Paris to St. Louis Flights

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*Available to One Key members.