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Interlaken

$440+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ZRH
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Interlaken are usually found in November or March, 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 julio 30, 2025.

Round-trip from

$582
(FlightHub)

One-way from

$440
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$995
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. 20% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/29. 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. 12/14:05 pmSTL - ZRH
1 stop11h 20mAir Canada
vie. 12/1212:40 pmZRH - STL
2 stops29h 06mAir Canada
Deal found 7/29$582
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/223:36 pmSTL - ZRH
2 stops15h 34mScandinavian Airlines
mar. 9/3010:20 amZRH - STL
2 stops18h 40mScandinavian Airlines
Deal found 7/29$629
This Air Canada deal was found by Cheapflights users on 7/29. 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. 12/14:05 pmSTL - ZRH
2 stops31h 10mMultiple Airlines
vie. 12/128:55 amZRH - STL
3 stops37h 34mMultiple Airlines
Deal found 7/29$632
This American Airlines deal was found by Cheapflights users on 7/30. 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.
jue. 8/216:00 amSTL - ZRH
1 stop19h 50mAmerican Airlines
mar. 8/2611:45 amZRH - STL
1 stop16h 02mAmerican Airlines
Deal found 7/30$653
This United Airlines deal was found by Cheapflights users on 7/28. 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.
mar. 8/261:30 pmSTL - ZRH
2 stops15h 10mUnited Airlines
mar. 9/29:50 amZRH - STL
1 stop16h 37mUnited Airlines
Deal found 7/28$672
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/185:30 pmSTL - ZRH
2 stops15h 40mLufthansa
dom. 8/246:55 amZRH - STL
1 stop13h 35mLufthansa
Deal found 7/29$692
This Travelocity deal was found by Cheapflights users on 7/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/76:05 amSTL - ZRH
2 stops31h 45mBritish Airways
mar. 9/237:15 amZRH - STL
2 stops20h 17mBritish Airways
Deal found 7/30$743
This Delta deal was found by Cheapflights users on 7/29. 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.
dom. 10/264:27 pmSTL - ZRH
1 stop12h 03mDelta
dom. 11/96:30 amZRH - STL
2 stops18h 32mDelta
Deal found 7/29$784

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 julio 30, 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

lun. 12/1

4:05 pm-10:25 am

1 stop11h 20m

Zurich

vie. 12/12

12:40 pm-10:46 am

2 stops29h 06m

$582

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

lun. 9/22

3:36 pm-2:10 pm

2 stops15h 34m

Zurich

mar. 9/30

10:20 am-10:00 pm

2 stops18h 40m

$629

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

lun. 12/1

4:05 pm-6:15 am

2 stops31h 10m

Zurich

vie. 12/12

8:55 am-3:29 pm

3 stops37h 34m

$632

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

jue. 8/21

6:00 am-8:50 am

1 stop19h 50m

Zurich

mar. 8/26

11:45 am-8:47 pm

1 stop16h 02m

$653

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mar. 8/26

1:30 pm-11:40 am

2 stops15h 10m

Zurich

mar. 9/2

9:50 am-7:27 pm

1 stop16h 37m

$672

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

lun. 8/18

5:30 pm-4:10 pm

2 stops15h 40m

Zurich

dom. 8/24

6:55 am-1:30 pm

1 stop13h 35m

$692

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

dom. 9/7

6:05 am-8:50 pm

2 stops31h 45m

Zurich

mar. 9/23

7:15 am-8:32 pm

2 stops20h 17m

$743

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

dom. 10/26

4:27 pm-10:30 am

1 stop12h 03m

Zurich

dom. 11/9

6:30 am-6:02 pm

2 stops18h 32m

$784

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

mié. 10/15

6:33 am-10:15 am

3 stops44h 42m

$440

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

sáb. 11/15

6:43 pm-6:15 am

2 stops28h 32m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 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 $1,152). 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 julio 30, 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 julio 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Scandinavian 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
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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!
Scandinavian Airlines
7.3
Good
1,453 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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
9,837 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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.

  • What are the cheapest airlines to fly from St. Louis to Interlaken one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $442. Users have also found prices from $468 and $496 on American Airlines and Delta, respectively.

  • 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 $1,152). 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$618Average$1,191FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$648Average$1,061FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$658Average$1,091FlexibilityNo cancel feeOn-time76%
DeltaCheapest$665Average$1,042FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$690Average$1,288FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$735Average$956FlexibilityNo cancel feeOn-time70%

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