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$585+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LYS
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from St. Louis to Lyon

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Lyon (LYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 14, 2025.

Popular in

January

Cheapest in

March
Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($71 potential savings vs. average RT price).
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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 agosto 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/11:30 pmSTL - LYS
1 stop14h 05mUnited Airlines
mar. 9/92:00 pmLYS - STL
2 stops32h 44mUnited Airlines
Deal found 8/11$693
This Air Canada deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/26:35 amSTL - LYS
2 stops21h 00mAir Canada
vie. 9/122:00 pmLYS - STL
2 stops27h 40mAir Canada
Deal found 8/11$697
This Air Canada deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/19:15 amSTL - LYS
2 stops18h 20mAir Canada
vie. 9/122:00 pmLYS - STL
2 stops32h 44mAir Canada
Deal found 8/11$699
This Air Canada deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/26:35 amSTL - LYS
2 stops21h 00mAir Canada
mié. 9/102:00 pmLYS - STL
1 stop12h 57mAir Canada
Deal found 8/11$710
This Air Canada deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/11:30 pmSTL - LYS
1 stop14h 05mAir Canada
jue. 9/116:50 amLYS - STL
2 stops20h 07mAir Canada
Deal found 8/11$714
This United deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/16:00 amSTL - LYS
2 stops21h 35mMultiple Airlines
mar. 9/92:00 pmLYS - STL
2 stops32h 18mMultiple Airlines
Deal found 8/11$716
This Air Canada deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/28:10 amSTL - LYS
2 stops19h 25mAir Canada
jue. 9/116:50 amLYS - STL
2 stops20h 07mAir Canada
Deal found 8/11$719
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/38:15 amSTL - LYS
2 stops25h 25mUnited Airlines
mar. 9/92:00 pmLYS - STL
1 stop12h 57mUnited Airlines
Deal found 8/11$732
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/15:30 pmSTL - LYS
2 stops34h 05mUnited Airlines
jue. 9/116:50 amLYS - STL
2 stops15h 54mUnited Airlines
Deal found 8/11$734
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/11:30 pmSTL - LYS
1 stop14h 05mMultiple Airlines
lun. 9/86:55 pmLYS - STL
2 stops27h 49mMultiple Airlines
Deal found 8/11$744
This Iberia deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:46 amSTL - LYS
2 stops30h 59mIberia
vie. 9/126:10 amLYS - STL
2 stops21h 05mIberia
Deal found 8/11$747

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from St. Louis to Lyon that are best for you.

Fly from

St. Louis

Fly to

Lyon

Route

Depart

Return

Price

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

lun. 9/1

1:30 pm-10:35 am

1 stop14h 05m

Lyon-Saint Exupéry

mié. 9/10

2:00 pm-2:19 pm

2 stops31h 19m

$693

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

lun. 9/1

1:30 pm-10:35 am

1 stop14h 05m

Lyon-Saint Exupéry

mar. 9/9

2:00 pm-3:44 pm

2 stops32h 44m

$693

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

lun. 9/1

1:30 pm-10:35 am

1 stop14h 05m

Lyon-Saint Exupéry

vie. 9/12

2:00 pm-3:44 pm

2 stops32h 44m

$693

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

lun. 9/1

1:30 pm-10:35 am

1 stop14h 05m

Lyon-Saint Exupéry

mar. 9/9

2:00 pm-3:44 pm

2 stops32h 44m

$693

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

mar. 9/2

8:10 am-10:35 am

2 stops19h 25m

Lyon-Saint Exupéry

mié. 9/10

2:00 pm-2:19 pm

2 stops31h 19m

$697

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

mar. 9/2

6:35 am-10:35 am

2 stops21h 00m

Lyon-Saint Exupéry

mar. 9/9

2:00 pm-3:44 pm

2 stops32h 44m

$697

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

mar. 9/2

6:35 am-10:35 am

2 stops21h 00m

Lyon-Saint Exupéry

vie. 9/12

2:00 pm-10:40 am

2 stops27h 40m

$697

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

dom. 9/28

4:05 pm-10:35 am

2 stops35h 30m

$585

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

dom. 9/28

3:30 pm-1:40 pm

1 stop15h 10m

$600

St. LouisLyon

STL - LYS

STLLYS

Lambert-St Louis

dom. 9/28

3:23 pm-1:40 pm

3 stops39h 17m

$925

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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?

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 agosto 14, 2025.

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.

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 to fly from St. Louis to Lyon one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $585. Users have also found prices from $600 and $925 on Lufthansa and United Airlines, respectively.

  • 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

Traveling to a place near Lyon?

Book flights to Lyon if you plan to visit one of these locations
Annemasse
Les Houches
Huez

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