In terms of precipitation, rainfall in Lausanne ranges from 2.7 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Lausanne when rainfall is around 2.7 in.

If weather is an important factor for your trip to Lausanne, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular airlines that fly from St. Louis to Lausanne?

Before booking your flight from St. Louis to Lausanne check out the most popular airlines for this route: United Airlines, Lufthansa or British Airways.

What is the cheapest time of day to fly from STL to LS9?

When flying from St. Louis to Lausanne, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Lausanne?

For a flight from St. Louis to Lausanne, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Lausanne per day. 3 airlines have flights to Lausanne from Lambert-St Louis on a regular basis.

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

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

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

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

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

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

Find Cheap Flights from St. Louis to Lausanne

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Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	June
Cheapest in	March
Average price	$859

Provider with most accurate pricing for Lambert-St Louis-Geneva Geneve-Cointrin flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Geneva Geneve-Cointrin flights.

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Highest demand for flights based on searches. 26% potential increase in price ($358 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($78 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Reviews of airlines servicing Lausanne

Peruse reviews from past customers who have flown with United Airlines,Lufthansa, andBritish Airways from St. Louis to Lausanne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.3

Good

10,461 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

United Airlines

7.3

Good

10,461 reviews

United Airlines

7.3

Good

10,461 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Lufthansa

6.8

Okay

8,301 reviews

United Airlines

7.3

Good

10,461 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

British Airways

6.7

Okay

8,277 reviews

United Airlines

7.3

Good

10,461 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

What airport do you fly from for flights from St. Louis to Lausanne?
For a flight from St. Louis to Lausanne, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Lausanne per day. 3 airlines have flights to Lausanne from Lambert-St Louis on a regular basis.
Can I find deals for flights from St. Louis to Lausanne that include hotel bookings?
Yes. In addition to deals on St. Louis to Lausanne flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Lausanne?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Lausanne.
Can I find deals for business class flights from St. Louis to Lausanne?
Yes. Cheapflights offers flight deals from St. Louis to Lausanne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 3 airlines flying from St. Louis to Lausanne

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$460	Average$790	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$501	Average$873	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$526	Average$726	FlexibilityNo cancel fee	On-time76%

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Find cheap flights from St. Louis to Lausanne with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from St. Louis to Lausanne

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Lausanne

Peruse reviews from past customers who have flown with United Airlines,Lufthansa, andBritish Airways from St. Louis to Lausanne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from St. Louis to Lausanne?

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

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

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

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 Lausanne

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

Complete your trip

Complete your trip to Lausanne by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from St. Louis to Lausanne by cabin class

Find flights from St. Louis to Lausanne, based on your preferred cabin class, be it economy, premium economy, business, or first class.

St. Louis and Lausanne flights

Browse other St. Louis and Lausanne flight options. Last updated on October 30, 2026.

Other flights from St. Louis

Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

Popular flight searches

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St. Louis to Lausanne flights

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Top 3 airlines flying from St. Louis to Lausanne

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Cheap flights from St. Louis (STL) to Lausanne, Switzerland

Find cheap flights from St. Louis to Lausanne with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from St. Louis to Lausanne

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Lausanne

Peruse reviews from past customers who have flown with United Airlines,Lufthansa, andBritish Airways from St. Louis to Lausanne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from St. Louis to Lausanne?

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

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

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

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 Lausanne

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

Complete your trip

Complete your trip to Lausanne by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from St. Louis to Lausanne by cabin class

Find flights from St. Louis to Lausanne, based on your preferred cabin class, be it economy, premium economy, business, or first class.

St. Louis and Lausanne flights

Browse other St. Louis and Lausanne flight options. Last updated on October 30, 2026.

Other flights from St. Louis

Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

St. Louis to Lausanne flights

Consider these flights traveling from St. Louis to Lausanne.

Top 3 airlines flying from St. Louis to Lausanne

100% Free

Book with Flexibility

Travel Smart