What are the cheapest airlines flying from St. Louis to Lyon round-trip?

Our cheapest airline available from St. Louis to Lyon is Air Canada. Our recent data shows that you can find tickets from as low as $658 on this airline. Additional options worth looking into are United Airlines and Lufthansa, starting at $696 and $763 round-trip.

What is the cheapest month to book a flight from St. Louis to Lyon?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Lyon (average of $703). Flying from St. Louis to Lyon in June is currently the most expensive (average of $1,199). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from St. Louis to Lyon?

Travelers seeking maximum savings on their St. Louis to Lyon flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Lyon ranges from 1.6 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Lyon when rainfall is around 1.6 in.

If weather is an important factor for your trip to Lyon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

What is the cheapest day to fly round-trip from St. Louis to Lyon?

Users have found that flying from St. Louis to Lyon on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Can I find deals for flights from St. Louis to Lyon that include hotel bookings?

Yes. In addition to deals on St. Louis to Lyon flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Lyon?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Lyon.

Can I find deals for business class flights from St. Louis to Lyon?

Yes. Cheapflights offers flight deals from St. Louis to Lyon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$395+ Flights from St. Louis to Lyon

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Cheap flight deals from St. Louis to Lyon

Round-trip from	$658 (Booking.com)
One-way from	$395 (Kiwi.com)

From Lambert-St Louis to Lyon-Saint Exupéry

Search Deals

One-way flight from Lambert-St Louis to Lyon-Saint Exupéry

Search Deals

Find flight deals from St. Louis to Lyon

Cheapest flights from St. Louis to Lyon
Explore the most affordable flight options available from St. Louis to Lyon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Thu 8/141:30 pmSTL - LYS

1 stop14h 05mAir Canada

Tue 8/192:00 pmLYS - STL

2 stops32h 21mAir Canada

Deal found 6/29

$658

Tue 8/121:20 pmSTL - LYS

2 stops16h 00mMultiple Airlines

Tue 8/197:05 amLYS - STL

2 stops15h 16mMultiple Airlines

Deal found 6/28

$668

Sat 11/224:05 pmSTL - LYS

2 stops35h 00mUnited Airlines

Sat 12/61:55 pmLYS - STL

2 stops36h 30mUnited Airlines

Deal found 6/28

$696

Sat 11/226:43 pmSTL - LYS

2 stops32h 22mLufthansa

Sat 12/63:00 pmLYS - STL

1 stop29h 55mLufthansa

Deal found 6/28

$763

Tue 8/196:00 pmSTL - LYS

2 stops15h 15mKLM

Sat 12/207:00 amLYS - STL

2 stops16h 56mKLM

Deal found 6/27

$813

Thu 8/218:50 amSTL - LYS

2 stops26h 50mIberia

Thu 9/256:10 amLYS - STL

2 stops24h 38mIberia

Deal found 6/27

$885

Tue 7/87:23 amSTL - LYS

2 stops19h 07mAer Lingus

Fri 7/2510:10 amLYS - STL

2 stops20h 41mAer Lingus

Deal found 6/28

$1,948

Best flights from St. Louis to Lyon
Discover carefully curated flight deals from St. Louis to Lyon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Thu 8/141:30 pmSTL - LYS

1 stop14h 05mAir Canada

Tue 8/192:00 pmLYS - STL

2 stops32h 21mAir Canada

Deal found 6/29

$658

Tue 8/121:20 pmSTL - LYS

2 stops16h 00mMultiple Airlines

Tue 8/197:05 amLYS - STL

2 stops15h 16mMultiple Airlines

Deal found 6/28

$668

Sat 11/224:05 pmSTL - LYS

2 stops35h 00mUnited Airlines

Sat 12/61:55 pmLYS - STL

2 stops36h 30mUnited Airlines

Deal found 6/28

$696

Sat 11/226:43 pmSTL - LYS

2 stops32h 22mLufthansa

Sat 12/63:00 pmLYS - STL

1 stop29h 55mLufthansa

Deal found 6/28

$763

Tue 8/196:00 pmSTL - LYS

2 stops15h 15mKLM

Sat 12/207:00 amLYS - STL

2 stops16h 56mKLM

Deal found 6/27

$813

Thu 8/218:50 amSTL - LYS

2 stops26h 50mIberia

Thu 9/256:10 amLYS - STL

2 stops24h 38mIberia

Deal found 6/27

$885

Last-minute flights from St. Louis to Lyon
Discover last-minute flight deals from St. Louis to Lyon. Data last updated June 30, 2025 and is based on user searches.

Tue 7/11:30 pmSTL - LYS

1 stop14h 05mAir Canada

Thu 7/176:50 amLYS - STL

2 stops20h 10mAir Canada

Deal found 6/28

$1,905

Fri 7/43:30 pmSTL - LYS

1 stop15h 10mLufthansa

Wed 7/236:50 amLYS - STL

1 stop13h 40mLufthansa

Deal found 6/28

$2,266

Mon 7/78:00 amSTL - LYS

2 stops18h 30mMultiple Airlines

Wed 7/237:15 pmLYS - STL

2 stops27h 32mMultiple Airlines

Deal found 6/28

$1,873

Mon 7/71:30 pmSTL - LYS

1 stop14h 05mUnited Airlines

Wed 7/232:00 pmLYS - STL

2 stops27h 40mUnited Airlines

Deal found 6/30

$1,923

Mon 7/71:30 pmSTL - LYS

1 stop14h 05mAir Canada

Wed 7/232:00 pmLYS - STL

1 stop13h 00mAir Canada

Deal found 6/30

$1,936

Tue 7/87:23 amSTL - LYS

2 stops19h 07mAer Lingus

Fri 7/2510:10 amLYS - STL

2 stops20h 41mAer Lingus

Deal found 6/28

$1,948

One-way flights from St. Louis to Lyon
Search for one-way flight options from St. Louis to Lyon. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Mon 9/152:02 pmSTL - LYS

3 stops59h 38mMultiple Airlines

Deal found 6/28

$395

Mon 9/151:30 pmSTL - LYS

1 stop14h 05mUnited Airlines

Deal found 6/28

$578

Wed 9/173:30 pmSTL - LYS

1 stop15h 10mLufthansa

Deal found 6/29

$737

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Lyon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Thu 8/14

1:30 pm-10:35 am

1 stop14h 05m

Lyon-Saint Exupéry

Tue 8/19

2:00 pm-3:21 pm

2 stops32h 21m

$658

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Tue 8/12

1:20 pm-12:20 pm

2 stops16h 00m

Lyon-Saint Exupéry

Tue 8/19

7:05 am-3:21 pm

2 stops15h 16m

$668

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Sat 11/22

4:05 pm-10:05 am

2 stops35h 00m

Lyon-Saint Exupéry

Sat 12/6

1:55 pm-7:25 pm

2 stops36h 30m

$696

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Sat 11/22

6:43 pm-10:05 am

2 stops32h 22m

Lyon-Saint Exupéry

Sat 12/6

3:00 pm-1:55 pm

1 stop29h 55m

$763

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Tue 8/19

6:00 pm-4:15 pm

2 stops15h 15m

Lyon-Saint Exupéry

Sat 12/20

7:00 am-4:56 pm

2 stops16h 56m

$813

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Thu 8/21

8:50 am-6:40 pm

2 stops26h 50m

Lyon-Saint Exupéry

Thu 9/25

6:10 am-11:48 pm

2 stops24h 38m

$885

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Mon 9/15

2:02 pm-8:40 am

3 stops59h 38m

$395

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Mon 9/15

1:30 pm-10:35 am

1 stop14h 05m

$578

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

Wed 9/17

3:30 pm-1:40 pm

1 stop15h 10m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Best time to book a flight from St. Louis to Lyon

Have a flexible travel schedule? Discover the best time to fly to Lyon from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Lyon

What is the cheapest time of day to fly from STL to LYS?

One of the essential ways to save on airfare from St. Louis to Lyon is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

Reviews of airlines servicing Lyon

Read reviews from past customers who have flown KLM, United Airlines, and Air Canada from St. Louis to Lyon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,365 reviews

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

United Airlines

7.4

Good

8,852 reviews

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Air Canada

7.1

Good

9,654 reviews

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Iberia

7.0

Good

2,810 reviews

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Lufthansa

6.8

Okay

7,200 reviews

KLM

7.8

Good

1,365 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Lyon round-trip?
Our cheapest airline available from St. Louis to Lyon is Air Canada. Our recent data shows that you can find tickets from as low as $658 on this airline. Additional options worth looking into are United Airlines and Lufthansa, starting at $696 and $763 round-trip.
Can I find deals for flights from St. Louis to Lyon that include hotel bookings?
Yes. In addition to deals on St. Louis to Lyon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Lyon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Lyon.
Can I find deals for business class flights from St. Louis to Lyon?
Yes. Cheapflights offers flight deals from St. Louis to Lyon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Lyon?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Lyon (average of $703). Flying from St. Louis to Lyon in June is currently the most expensive (average of $1,199). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Annemasse

Les Houches

Huez

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from St. Louis to Lyon

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$623	Average$962	FlexibilityNo cancel fee	On-time67%

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$395+ Cheap flights from St. Louis (STL) to Lyon (LYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Lyon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Lyon

Round-trip from

One-way from

Find flight deals from St. Louis to Lyon

Cheapest flights from St. Louis to LyonExplore the most affordable flight options available from St. Louis to Lyon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from St. Louis to Lyon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Lyon that are best for you.

Best time to book a flight from St. Louis to Lyon

Have a flexible travel schedule? Discover the best time to fly to Lyon from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Lyon

What is the cheapest time of day to fly from STL to LYS?

Find hourly flight availability from St. Louis to Lyon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

Reviews of airlines servicing Lyon

Get insights into the airlines that provide service to Lyon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lyon. Reviews last updated June 30, 2025.

Read reviews from past customers who have flown KLM, United Airlines, and Air Canada from St. Louis to Lyon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Lyon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Lyon round-trip?

Can I find deals for flights from St. Louis to Lyon that include hotel bookings?

How can I find direct flights from St. Louis to Lyon?

Can I find deals for business class flights from St. Louis to Lyon?

What is the cheapest month to book a flight from St. Louis to Lyon?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Lyon

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from St. Louis to Lyon

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Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Lyon
Explore the most affordable flight options available from St. Louis to Lyon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.