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Interlaken

$450+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ZRH
May 4 — May 111
Sun 5/4
Sun 5/11
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 70 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$587
(American Airlines)

One-way from

$450
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$993
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.
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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. 24% potential increase in price ($329 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/111:15 pmSTL - ZRH
1 stop12h 35mAmerican Airlines
Tue 8/197:15 amZRH - STL
2 stops16h 54mAmerican Airlines
Deal found 4/29$587
This Travelocity deal was found by Cheapflights users on 4/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:05 amSTL - ZRH
2 stops17h 00mIberia
Tue 8/1911:50 amZRH - STL
2 stops18h 59mIberia
Deal found 4/29$591
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Tue 10/73:30 pmSTL - ZRH
2 stops21h 25mScandinavian Airlines
Tue 10/2810:25 amZRH - STL
2 stops19h 14mScandinavian Airlines
Deal found 4/29$604
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Sat 8/91:30 pmSTL - ZRH
1 stop33h 40mAir Canada
Wed 8/201:25 pmZRH - STL
2 stops30h 00mAir Canada
Deal found 4/29$620
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/108:00 amSTL - ZRH
1 stop16h 45mUnited Airlines
Wed 8/209:25 amZRH - STL
1 stop13h 19mUnited Airlines
Deal found 4/29$641
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 8/1511:51 amSTL - ZRH
1 stop13h 14mDelta
Tue 8/1910:10 amZRH - STL
1 stop20h 29mDelta
Deal found 4/29$691
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:30 pmSTL - ZRH
1 stop11h 15mLufthansa
Mon 8/189:05 pmZRH - STL
2 stops25h 39mLufthansa
Deal found 4/29$695
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Tue 10/71:30 pmSTL - ZRH
2 stops15h 10mMultiple Airlines
Tue 10/288:55 amZRH - STL
3 stops36h 31mMultiple Airlines
Deal found 4/29$753
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/115:30 pmSTL - ZRH
2 stops13h 15mKLM
Sun 8/177:00 amZRH - STL
2 stops14h 16mKLM
Deal found 4/29$824
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/81:20 pmSTL - ZRH
2 stops18h 00mAustrian Airlines
Tue 8/197:20 amZRH - STL
2 stops19h 19mAustrian Airlines
Deal found 4/29$1,376
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Wed 8/138:00 amSTL - ZRH
2 stops18h 25mTurkish Airlines
Sat 8/161:40 pmZRH - STL
2 stops40h 05mTurkish Airlines
Deal found 4/29$1,450
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Wed 9/32:01 pmSTL - ZRH
2 stops25h 44mBritish Airways
Mon 9/159:45 pmZRH - STL
2 stops27h 36mBritish Airways
Deal found 4/29$1,579

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 April 29, 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

Mon 8/11

1:15 pm-8:50 am

1 stop12h 35m

Zurich

Tue 8/19

7:15 am-5:09 pm

2 stops16h 54m

$587

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Mon 8/11

11:05 am-11:05 am

2 stops17h 00m

Zurich

Tue 8/19

11:50 am-11:49 pm

2 stops18h 59m

$591

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 10/7

3:30 pm-7:55 pm

2 stops21h 25m

Zurich

Tue 10/28

10:25 am-11:39 pm

2 stops19h 14m

$604

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Sat 8/9

1:30 pm-6:10 am

1 stop33h 40m

Zurich

Wed 8/20

1:25 pm-12:25 pm

2 stops30h 00m

$620

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Sun 8/10

8:00 am-7:45 am

1 stop16h 45m

Zurich

Wed 8/20

9:25 am-3:44 pm

1 stop13h 19m

$641

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Fri 8/15

11:51 am-8:05 am

1 stop13h 14m

Zurich

Tue 8/19

10:10 am-11:39 pm

1 stop20h 29m

$691

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Sun 8/10

3:30 pm-9:45 am

1 stop11h 15m

Zurich

Mon 8/18

9:05 pm-3:44 pm

2 stops25h 39m

$695

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 10/7

1:30 pm-11:40 am

2 stops15h 10m

Zurich

Tue 10/28

8:55 am-3:26 pm

3 stops36h 31m

$753

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Mon 8/11

5:30 pm-1:45 pm

2 stops13h 15m

Zurich

Sun 8/17

7:00 am-2:16 pm

2 stops14h 16m

$824

St. LouisZurich

STL - ZRH

STLZRH

Lambert-St Louis

Tue 7/8

1:20 pm-2:20 pm

2 stops18h 00m

Zurich

Tue 8/19

7:20 am-7:39 pm

2 stops19h 19m

$1,376

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 16 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 April 25, 2025.

The best time to book flights from St. Louis to Interlaken is 70 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 $1,234). 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 April 29, 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.

Rainfall in Interlaken by month

Plan your trip to Interlaken by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Interlaken ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Interlaken when rainfall is around 2.5 in.

Temperature in Interlaken by month

Plan your trip to Interlaken by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Interlaken, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Turkish Airlines
7.3
Good
3,788 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 5 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 American Airlines. According to our data, you can fly for as low as $548. Users have also found prices from $898 and $1,675 on United Airlines and Lufthansa, 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 $1,234). 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 5 airlines flying from St. Louis to Interlaken

Discover the top 5 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$618Average$1,118FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$656Average$1,068FlexibilityNo cancel feeOn-time69%
DeltaCheapest$665Average$1,064FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$690Average$1,216FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$690Average$1,307FlexibilityNo cancel feeOn-time67%

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