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Interlaken

$389+ Cheap flights from St. Louis (STL) to Interlaken, Switzerland

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ZRH
oct. 19 — oct. 261
dom. 10/19
dom. 10/26
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Interlaken are usually found in November or October, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from St. Louis to Interlaken

Keep the following information in mind while searching for St. Louis to Interlaken flight deals. Data was last updated septiembre 19, 2025.

Round-trip from

$533
(FlightHub)

One-way from

$389
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,164
From Lambert-St Louis to Interlaken
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One-way flight from Lambert-St Louis to Interlaken
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Highest demand for flights based on searches. 21% potential increase in price ($269 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Interlaken

Cheapest flights from St. Louis to Interlaken
Explore the most affordable flight options available from St. Louis to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 19, 2025.

This FlightHub deal was found by Cheapflights users on 9/18. 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.
mar. 10/73:59 pmSTL - ZRH
2 stops20h 56mScandinavian Airlines
mar. 10/2810:25 amZRH - STL
2 stops17h 39mScandinavian Airlines
Deal found 9/18$533
This United Airlines deal was found by Cheapflights users on 9/18. 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. 11/1912:31 pmSTL - ZRH
1 stop12h 24mUnited Airlines
vie. 11/281:20 pmZRH - STL
2 stops33h 26mUnited Airlines
Deal found 9/18$592
This Booking.com deal was found by Cheapflights users on 9/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:30 amSTL - ZRH
2 stops40h 45mMultiple Airlines
lun. 12/156:50 pmZRH - STL
2 stops33h 50mMultiple Airlines
Deal found 9/18$597
This Gotogate deal was found by Cheapflights users on 9/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/24:05 pmSTL - ZRH
1 stop11h 20mAir Canada
dom. 11/91:20 pmZRH - STL
1 stop33h 09mAir Canada
Deal found 9/18$600
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/194:05 pmSTL - ZRH
1 stop11h 20mMultiple Airlines
vie. 11/287:05 amZRH - STL
1 stop13h 50mMultiple Airlines
Deal found 9/18$601
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/284:05 pmSTL - ZRH
1 stop11h 20mAir Canada
jue. 12/412:40 pmZRH - STL
2 stops34h 00mAir Canada
Deal found 9/18$602
This United Airlines deal was found by Cheapflights users on 9/17. 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. 10/81:30 pmSTL - ZRH
2 stops15h 10mUnited Airlines
jue. 10/169:50 amZRH - STL
1 stop12h 54mUnited Airlines
Deal found 9/17$607
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/710:36 amSTL - ZRH
1 stop15h 14mAmerican Airlines
mar. 10/2810:15 amZRH - STL
1 stop16h 05mAmerican Airlines
Deal found 9/17$608
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/77:05 amSTL - ZRH
1 stop18h 00mDelta
mar. 10/281:30 pmZRH - STL
2 stops26h 07mDelta
Deal found 9/17$612

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Interlaken 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 septiembre 19, 2025.
Use the filters below to find and compare flights from St. Louis to Interlaken that are best for you.

Fly from

St. Louis

Fly to

Interlaken

Route

Depart

Return

Price

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mié. 10/8

1:30 pm-11:40 am

2 stops15h 10m

Zurich

jue. 10/16

9:50 am-3:44 pm

1 stop12h 54m

$607

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mar. 10/7

10:36 am-8:50 am

1 stop15h 14m

Zurich

mar. 10/28

10:15 am-8:20 pm

1 stop16h 05m

$608

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mar. 12/9

6:42 pm-7:40 pm

2 stops17h 58m

Zurich

lun. 12/15

9:55 pm-3:29 pm

3 stops48h 34m

$623

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

jue. 11/13

6:40 am-10:30 am

2 stops20h 50m

Zurich

mar. 11/18

1:30 pm-9:46 am

2 stops27h 16m

$628

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

jue. 10/16

8:00 am-7:45 am

1 stop16h 45m

Zurich

mié. 10/22

1:25 pm-10:49 am

2 stops28h 24m

$642

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

dom. 10/26

6:52 pm-4:40 pm

2 stops15h 48m

Zurich

dom. 11/9

9:00 am-8:46 pm

2 stops18h 46m

$655

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

sáb. 11/1

6:43 pm-10:40 am

1 stop33h 57m

Zurich

sáb. 11/8

12:10 pm-2:25 pm

2 stops33h 15m

$655

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

vie. 10/17

6:00 am-8:50 am

1 stop19h 50m

Zurich

mié. 10/29

10:15 am-8:20 pm

1 stop16h 05m

$658

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mié. 10/8

9:20 am-7:45 am

1 stop15h 25m

Zurich

vie. 10/17

9:50 am-3:44 pm

1 stop12h 54m

$673

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

vie. 10/17

10:59 pm-7:55 am

3 stops49h 56m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 12 results
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Best time to book a flight from St. Louis to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken 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 Interlaken

How far ahead should I book a flight from St. Louis to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Interlaken. Price data was last updated on September 12, 2025.

The best time to book flights from St. Louis to Interlaken is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Interlaken (average of $637). Flying from St. Louis to Interlaken in June is currently the most expensive (average of $1,147). 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 time of day to fly from STL to IN9?

Find hourly flight availability from St. Louis to Interlaken. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 19, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Interlaken as you normally would.

Reviews of airlines servicing Interlaken

Get insights into the airlines that provide service to Interlaken. 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 Interlaken. Reviews last updated septiembre 19, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Interlaken. 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.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,415 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Interlaken. On average, Lambert-St Louis has 0 outbound flights to Interlaken per day from 6 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from St. Louis to Interlaken?

    Departing from St. Louis to Interlaken will take you 15h 10m. There are 4675 mi between St. Louis and Interlaken. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Interlaken 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 Interlaken?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Interlaken (average of $637). Flying from St. Louis to Interlaken in June is currently the most expensive (average of $1,147). 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

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Top 6 airlines flying from St. Louis to Interlaken

Discover the top 6 airlines that operate flights from St. Louis to Interlaken. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$611Average$1,174FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$629Average$1,135FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$652Average$1,101FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$690Average$1,293FlexibilityNo cancel feeOn-time67%
DeltaCheapest$695Average$1,018FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$832Average$956FlexibilityNo cancel feeOn-time70%

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