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Cheap flights from St. Louis to Lyon from $805

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Lyon departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Lyon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 6:15 pmSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
43h 10m2 stops Toronto Pearson Intl Frankfurt am Main
Air Canada Logo
12:55 pm - 3:26 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
57h 31m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$805Air Canada
Sun, Jan 31 - Wed, Feb 3
Air Canada Logo
6:50 pm - 11:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
33h 15m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:40 pm - 3:43 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
33h 03m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$807Air Canada
Sun, Nov 15 - Thu, Nov 19
Air Canada Logo
6:50 pm - 11:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
33h 15m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:40 pm - 3:43 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
33h 03m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$808Air Canada
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
5:20 pm - 11:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
34h 45m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:30 am - 1:45 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
$821United Airlines
Sun, Jan 31 - Wed, Feb 3
United Airlines Logo
3:40 pm - 10:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
11h 25m1 stop Frankfurt am Main
United Airlines Logo
6:30 am - 1:45 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
$833United Airlines
Sun, Jan 31 - Wed, Feb 3
United Airlines Logo
3:40 pm - 2:20 pmSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
15h 40m1 stop Frankfurt am Main
United Airlines Logo
6:30 am - 7:23 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
19h 53m2 stops Frankfurt am Main Chicago O'Hare Intl
$841United Airlines
Sun, Nov 15 - Thu, Nov 19
United Airlines Logo
3:40 pm - 10:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
11h 25m1 stop Frankfurt am Main
United Airlines Logo
6:30 am - 10:24 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
22h 54m2 stops Frankfurt am Main Chicago O'Hare Intl
$842United Airlines
Sun, Nov 15 - Thu, Nov 19
British Airways Logo
7:24 am - 1:00 pmSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
22h 36m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
9:35 am - 11:35 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
21h 00m2 stops London Heathrow Dallas/Fort Worth
$1,060British Airways
Sun, Nov 15 - Thu, Nov 19
British Airways Logo
9:35 pm - 7:45 pmSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
15h 10m1 stop London Heathrow
British Airways Logo
11:10 am - 7:30 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
15h 20m1 stop London Heathrow
$1,186British Airways
Tue, Oct 6 - Fri, Oct 23
United Airlines Logo
3:40 pm - 10:05 amSTL  Lambert-St Louis-LYS Lyon-Saint Exupéry
11h 25m1 stop Frankfurt am Main
United Airlines Logo
1:40 pm - 2:30 pmLYS  Lyon-Saint Exupéry-STL Lambert-St Louis
31h 50m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$1,830United Airlines
Sun, Nov 15 - Thu, Nov 19

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Air Canada flights from St. Louis to Lyon

Our best Air Canada deals on St. Louis to Lyon flight tickets
Air Canada
Jan 31
STL4:05 pmLambert-St Louis
43h 10m
2 stops
LYS6:15 pmLyon-Saint Exupéry
Feb 3
LYS12:55 pmLyon-Saint Exupéry
57h 31m
2 stops
STL3:26 pmLambert-St Louis
$805
Air Canada
Nov 15
STL6:50 pmLambert-St Louis
33h 15m
2 stops
LYS11:05 amLyon-Saint Exupéry
Nov 19
LYS1:40 pmLyon-Saint Exupéry
33h 03m
2 stops
STL3:43 pmLambert-St Louis
$807
Air Canada
Nov 15
STL6:50 pmLambert-St Louis
33h 15m
2 stops
LYS11:05 amLyon-Saint Exupéry
Nov 19
LYS1:40 pmLyon-Saint Exupéry
33h 03m
2 stops
STL3:43 pmLambert-St Louis
$808

United Airlines flights from St. Louis to Lyon

Our best United Airlines deals on St. Louis to Lyon flight tickets
United Airlines
Jan 31
STL5:20 pmLambert-St Louis
34h 45m
2 stops
LYS11:05 amLyon-Saint Exupéry
Feb 3
LYS6:30 amLyon-Saint Exupéry
14h 15m
1 stop
STL1:45 pmLambert-St Louis
$821
United Airlines
Jan 31
STL3:40 pmLambert-St Louis
11h 25m
1 stop
LYS10:05 amLyon-Saint Exupéry
Feb 3
LYS6:30 amLyon-Saint Exupéry
14h 15m
1 stop
STL1:45 pmLambert-St Louis
$833
United Airlines
Nov 15
STL3:40 pmLambert-St Louis
15h 40m
1 stop
LYS2:20 pmLyon-Saint Exupéry
Nov 19
LYS6:30 amLyon-Saint Exupéry
19h 53m
2 stops
STL7:23 pmLambert-St Louis
$841

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Lyon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 8, 2026.
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

Cheapest round-trip

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 1/31

4:05 pm-6:15 pm

2 stops43h 10m

Lyon-Saint Exupéry

Wed 2/3

12:55 pm-3:26 pm

2 stops57h 31m

$805

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

6:50 pm-11:05 am

2 stops33h 15m

Lyon-Saint Exupéry

Thu 11/19

1:40 pm-3:43 pm

2 stops33h 03m

$807

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

6:50 pm-11:05 am

2 stops33h 15m

Lyon-Saint Exupéry

Thu 11/19

1:40 pm-3:43 pm

2 stops33h 03m

$808

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 1/31

5:20 pm-11:05 am

2 stops34h 45m

Lyon-Saint Exupéry

Wed 2/3

6:30 am-1:45 pm

1 stop14h 15m

$821
Quickest round-trip

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 1/31

3:40 pm-10:05 am

1 stop11h 25m

Lyon-Saint Exupéry

Wed 2/3

6:30 am-1:45 pm

1 stop14h 15m

$833

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

3:40 pm-2:20 pm

1 stop15h 40m

Lyon-Saint Exupéry

Thu 11/19

6:30 am-7:23 pm

2 stops19h 53m

$841

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

3:40 pm-10:05 am

1 stop11h 25m

Lyon-Saint Exupéry

Thu 11/19

6:30 am-10:24 pm

2 stops22h 54m

$842

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

7:24 am-1:00 pm

2 stops22h 36m

Lyon-Saint Exupéry

Thu 11/19

9:35 am-11:35 pm

2 stops21h 00m

$1,060

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Tue 10/6

9:35 pm-7:45 pm

1 stop15h 10m

Lyon-Saint Exupéry

Fri 10/23

11:10 am-7:30 pm

1 stop15h 20m

$1,186

St. LouisLyon

STL Lambert-St Louis - LYS Lyon-Saint Exupéry

STLLYS

Lambert-St Louis

Sun 11/15

3:40 pm-10:05 am

1 stop11h 25m

Lyon-Saint Exupéry

Thu 11/19

1:40 pm-2:30 pm

2 stops31h 50m

$1,830

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Lyon

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Lyon according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Lyon (STL to LYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Lyon

Fastest flight time

13h 11m

Direct flights

None
The fastest flight from St. Louis to Lyon takes 13h 11m
There are no direct flights from St. Louis to Lyon. There are no popular flight routes from St. Louis to Lyon.
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Frequently asked questions about flying from St. Louis to Lyon

  • How far is Lambert-St Louis to Lyon-Saint Exupéry by plane?

    There are 4588.7 mi between Lambert-St Louis and Lyon-Saint Exupéry. Flights usually cover this in 13h 11m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Lyon-Saint Exupéry Airport?

    Prices for flights from Lambert-St Louis Airport to Lyon-Saint Exupéry Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Lyon-Saint Exupéry Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Lyon-Saint Exupéry Airport.

  • What documentation or ID do you need to fly to Lyon-Saint Exupéry Airport?

    The travel and health documents you'll need for your trip to Lyon-Saint Exupéry Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lyon-Saint Exupéry Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from St. Louis to Lyon

  • How do I get Price Alerts for flights from St. Louis to Lyon?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from Lyon. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to Lyon with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near Lyon?

Book flights to Lyon if you plan to visit one of these locations
Chamonix
Courchevel
Val Thorens
Val-d'Isere
Megève
Ferney-Voltaire
Saint-Gervais-les-Bains
Annemasse
Morzine
Les Houches
Tignes
Aix-les-Bains
Évian-les-Bains
Aubenas
Huez
Brides-les-Bains
Val-Cenis
Vienne
Gap
Lons-le-Saunier

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Lyon?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Lyon. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Lyon with flexible booking policies on momondo?

Yes. All flights to Lyon from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Lyon?

Once you have performed a search for St. Louis to Lyon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Lyon right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Lyon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lyon and let you know when they change.

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