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Interlaken

$367+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ZRH
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap 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 January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/17. 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.
Tue 4/217:45 am
STL
-
ZRH
1 stop15h 25m
United Airlines
Tue 4/281:25 pm
ZRH
-
STL
2 stops29h 57m
United Airlines
Deal found 1/17$440
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Wed 3/44:05 pm
STL
-
ZRH
1 stop11h 20m
United Airlines
Wed 3/111:20 pm
ZRH
-
STL
2 stops40h 31m
United Airlines
Deal found 1/18$443
This American Airlines deal was found by Cheapflights users on 1/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:11 pm
STL
-
ZRH
2 stops17h 04m
American Airlines
Wed 5/611:45 am
ZRH
-
STL
1 stop14h 42m
American Airlines
Deal found 1/18$451
This oojo deal was found by Cheapflights users on 1/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:05 am
STL
-
ZRH
2 stops22h 10m
British Airways
Tue 5/124:25 pm
ZRH
-
STL
1 stop34h 05m
British Airways
Deal found 1/18$452
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 2/102:54 pm
STL
-
ZRH
2 stops17h 36m
American Airlines
Tue 2/1710:15 am
ZRH
-
STL
2 stops17h 57m
American Airlines
Deal found 1/19$456
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 4/289:10 am
STL
-
ZRH
2 stops16h 05m
United Airlines
Tue 5/51:25 pm
ZRH
-
STL
1 stop13h 39m
United Airlines
Deal found 1/19$457
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:35 pm
STL
-
ZRH
1 stop18h 10m
British Airways
Wed 5/137:15 am
ZRH
-
STL
2 stops23h 33m
British Airways
Deal found 1/19$458
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/410:10 am
STL
-
ZRH
2 stops14h 30m
United Airlines
Wed 2/1111:45 am
ZRH
-
STL
2 stops16h 28m
United Airlines
Deal found 1/20$459
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 2/207:41 am
STL
-
ZRH
1 stop17h 14m
United Airlines
Thu 2/261:20 pm
ZRH
-
STL
1 stop33h 09m
United Airlines
Deal found 1/19$478

Find 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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$440
(United Airlines)

One-way from

$367
(Cheapflightsfares)

Popular in

June

Cheapest in

November

Average price

$724
Provider with most accurate pricing for Lambert-St Louis-Zurich flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Zurich flights.
Search Deals
From Lambert-St Louis to Interlaken
Search Deals
One-way flight from Lambert-St Louis to Interlaken
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($243 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 20, 2026.
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

Tue 4/21

7:45 am-6:10 am

1 stop15h 25m

Zurich

Tue 4/28

1:25 pm-12:22 pm

2 stops29h 57m

$440

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 4/21

2:29 pm-2:40 pm

2 stops17h 11m

Zurich

Tue 4/28

7:15 am-7:30 pm

1 stop19h 15m

$452

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Wed 4/29

4:05 pm-10:05 am

1 stop11h 00m

Zurich

Wed 5/6

12:40 pm-8:05 pm

1 stop14h 25m

$452

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Wed 5/6

2:29 pm-10:45 pm

2 stops25h 16m

Zurich

Wed 5/13

10:15 am-7:30 pm

1 stop16h 15m

$452

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Wed 2/4

11:20 am-7:55 am

1 stop13h 35m

Zurich

Wed 2/11

1:20 pm-3:29 pm

1 stop33h 09m

$453

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Wed 4/29

9:10 am-10:50 am

1 stop18h 40m

Zurich

Tue 5/12

1:25 pm-8:04 pm

1 stop13h 39m

$453

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 2/10

11:20 am-10:40 am

1 stop16h 20m

Zurich

Tue 2/17

1:00 pm-3:29 pm

1 stop33h 29m

$453

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Sun 4/26

9:40 pm-10:25 pm

1 stop17h 45m

$367

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 5/12

7:05 am-2:40 pm

2 stops24h 35m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

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 January 16, 2026.

The best time to book flights from St. Louis to Interlaken is 11 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, March is the cheapest month in which you can book a flight from St. Louis to Interlaken (average of $476). Flying from St. Louis to Interlaken in June is currently the most expensive (average of $940). 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.

How much does it cost to fly round-trip from St. Louis to Interlaken?

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 January 20, 2026.
Read reviews from past customers who have flown United Airlines, American Airlines, and Air Canada 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.
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,183 reviews
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,166 reviews
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,637 reviews
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,732 reviews
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,690 reviews
United Airlines
7.4
Good
9,183 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 11h. 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, March is the cheapest month in which you can book a flight from St. Louis to Interlaken (average of $476). Flying from St. Louis to Interlaken in June is currently the most expensive (average of $940). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$460Average$778FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$501Average$929FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$526Average$863FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$574Average$1,283FlexibilityNo cancel feeOn-time71%
DeltaCheapest$594Average$1,002FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$690Average$1,284FlexibilityNo cancel feeOn-time67%

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