$398 Find Cheap Flights from Switzerland to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$651
American Airlines
Tue 1/13Tue 1/20
BSL - STL • 2 stops
Cheapest one-way
$398
Multiple Airlines
Tue 5/26
GVA - STL • 2 stops
When to travel
February
Cheapest • 25% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Switzerland to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Switzerland to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Switzerland to St. Louis

Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
7:00 am - 6:34 pm
BSL
-
STL
18h 34m2 stops
American Airlines Logo
3:54 pm - 3:05 pm
STL
-
BSL
16h 11m2 stops
$651American Airlines
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
6:05 am - 11:28 pm
BSL
-
STL
24h 23m2 stops
American Airlines Logo
6:20 pm - 6:15 pm
STL
-
BSL
17h 55m2 stops
$652American Airlines
Sun, Jan 25 - Sun, Feb 1
British Airways Logo
6:35 am - 6:34 pm
ZRH
-
STL
18h 59m2 stops
British Airways Logo
2:54 pm - 12:20 pm
STL
-
ZRH
14h 26m2 stops
$661British Airways
Mon, Jan 26 - Mon, Feb 2
United Airlines Logo
6:50 am - 10:58 pm
GVA
-
STL
23h 08m2 stops
United Airlines Logo
11:22 am - 7:25 am
STL
-
GVA
13h 03m1 stop
$662United Airlines
Sun, Jan 25 - Fri, Jan 30
British Airways Logo
6:35 am - 10:59 pm
BSL
-
STL
23h 24m2 stops
British Airways Logo
2:54 pm - 10:15 am
STL
-
BSL
36h 21m2 stops
$672British Airways
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
8:50 am - 9:13 pm
ZRH
-
STL
19h 23m2 stops
United Airlines Logo
1:15 pm - 10:40 am
STL
-
ZRH
14h 25m1 stop
$680United Airlines
Sat, Jan 10 - Sat, Jan 17
Delta Logo
1:30 pm - 9:39 am
ZRH
-
STL
27h 09m2 stops
Delta Logo
7:10 am - 8:30 am
STL
-
ZRH
18h 20m2 stops
$685Delta
Thu, May 14 - Wed, May 20
Multiple Airlines Logo
8:15 am - 5:44 pm
ZRH
-
STL
16h 29m2 stops
Multiple Airlines Logo
1:00 pm - 11:40 am
STL
-
ZRH
15h 40m2 stops
$722Multiple Airlines
Wed, Jan 7 - Sat, Jan 17
Multiple Airlines Logo
1:00 pm - 3:29 pm
GVA
-
STL
33h 29m2 stops
Multiple Airlines Logo
4:05 pm - 5:05 pm
STL
-
GVA
18h 00m2 stops
$749Multiple Airlines
Sat, Dec 27 - Wed, Dec 31
Delta Logo
6:05 am - 9:43 pm
BSL
-
STL
22h 38m2 stops
Delta Logo
6:00 am - 9:50 am
STL
-
BSL
20h 50m2 stops
$842Delta
Booking Insights

KAYAK's insights & trends for flights to St. Louis

Get data-powered insights and trends for flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to St. Louis is February, where tickets cost $605 on average for one-way flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from Switzerland is $1,122 and $1,052 respectively. For return trips, the best month to travel is February with an average price of $605.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$398
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Geneva to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    Central St. Louis is 13 miles away from Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    All flights to St. Louis land at Lambert-St Louis Airport. The airport code is STL,and it can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Wednesday where tickets can be as cheap as $597. On the other hand, the most expensive day to fly is Monday, where prices are $887 on average.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally in the morning, when flights cost $663 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is $663.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,451 direct flights from within Switzerland to St. Louis. The most common day for departures is Monday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airline flying from Switzerland to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Switzerland to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9094 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

6.0 GoodSue, Dec 2025
SJO - SFO
Read more United Airlines reviews

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)