What are the cheapest airlines to fly from Chicago to Interlaken one-way?

$220 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Scandinavian Airlines and Aer Lingus, with prices starting from $278 and $394, respectively.

Weekly flight availability from Chicago to Interlaken

The most flights from CHI to IN9 are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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.

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).

What are the cheapest flights from Chicago to Interlaken?

Looking for the cheapest flight from Chicago to Interlaken? While on average our users pay $2,068, our data indicates the cheapest price to be $20. The most popular route (Chicago O'Hare Intl - Zurich), is priced around $623.

What are the most reliable airlines from Chicago to Interlaken?

No one likes to see their flight delayed. When booking a flight from Chicago to Interlaken consider choosing Air Canada (94%), Austrian Airlines (93%) or Brussels Airlines (93%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Chicago to Interlaken?

Before booking your flight from Chicago to Interlaken check out the most popular airlines for this route: SWISS, Scandinavian Airlines or United Airlines.

Can I find deals for flights from Chicago to Interlaken that include hotel bookings?

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

How can I find direct flights from Chicago to Interlaken?

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

Can I find deals for business class flights from Chicago to Interlaken?

Yes. Cheapflights offers flight deals from Chicago 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.

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Cheapflights Tip: The best prices from Chicago to Interlaken are usually found in February or April, booked 20 days in advance, depart on a Monday or Tuesday and return on a Saturday

Find flight deals from Chicago to Interlaken

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	December
Cheapest in	February
Average price	$780

Provider with most accurate pricing for Chicago (CHI)-Zurich flight deals.

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Provider most trusted by Cheapflights users for Chicago (CHI)-Zurich flights.

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Highest demand for flights based on searches. 1% potential increase in price ($18 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in November 2026

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Cheapflights Insights

Everything you need to know about your flight from Chicago to Interlaken

Prices

Airlines

What is the cheapest time of day to fly from CHI to IN9?

When flying from Chicago to Interlaken, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Interlaken

See what other customers who have flown with Scandinavian Airlines,SWISS, andTurkish Airlines from Chicago to Interlaken have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Scandinavian Airlines

7.5

Good

2,025 reviews

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

SWISS

7.5

Good

2,110 reviews

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Turkish Airlines

7.4

Good

4,473 reviews

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Aer Lingus

7.3

Good

1,879 reviews

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

United Airlines

7.3

Good

10,464 reviews

Scandinavian Airlines

7.5

Good

2,025 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

What are the cheapest airlines to fly from Chicago to Interlaken one-way?
$220 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Scandinavian Airlines and Aer Lingus, with prices starting from $278 and $394, respectively.
What are the most reliable airlines from Chicago to Interlaken?
No one likes to see their flight delayed. When booking a flight from Chicago to Interlaken consider choosing Air Canada (94%), Austrian Airlines (93%) or Brussels Airlines (93%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Chicago to Interlaken?
Looking for the cheapest flight from Chicago to Interlaken? While on average our users pay $2,068, our data indicates the cheapest price to be $20. The most popular route (Chicago O'Hare Intl - Zurich), is priced around $623.
Can I find deals for flights from Chicago to Interlaken that include hotel bookings?
Yes. In addition to deals on Chicago to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chicago to Interlaken?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Interlaken.
Can I find deals for business class flights from Chicago to Interlaken?
Yes. Cheapflights offers flight deals from Chicago 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.

See more FAQs

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Top 10 airlines flying from Chicago to Interlaken

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$352	Average$775	FlexibilityNo cancel fee	On-time70%
TAP AIR PORTUGAL	Cheapest$389	Average$673	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$396	Average$850	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$435	Average$657	FlexibilityNo cancel fee	On-time77%
Air Canada	Cheapest$496	Average$880	FlexibilityNo cancel fee	On-time67%
Aer Lingus	Cheapest$507	Average$920	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$520	Average$1,108	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$540	Average$887	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$561	Average$784	FlexibilityNo cancel fee	On-time71%
SWISS	Cheapest$578	Average$1,085	FlexibilityNo cancel fee	On-time79%

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Cheap flights from Chicago (CHI) to Interlaken, Switzerland

Find cheap flights from Chicago to Interlaken with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Chicago to Interlaken

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from CHI to IN9?

When flying from Chicago to Interlaken, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Chicago to Interlaken

The most flights from CHI to IN9 are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Interlaken

See what other customers who have flown with Scandinavian Airlines,SWISS, andTurkish Airlines from Chicago to Interlaken have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the cheapest airlines to fly from Chicago to Interlaken one-way?

What are the most reliable airlines from Chicago to Interlaken?

What are the cheapest flights from Chicago to Interlaken?

Can I find deals for flights from Chicago to Interlaken that include hotel bookings?

How can I find direct flights from Chicago to Interlaken?

Can I find deals for business class flights from Chicago to Interlaken?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Interlaken

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Complete your trip

Complete your trip to Interlaken by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Chicago to Interlaken by cabin class

Find flights from Chicago to Interlaken, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chicago and Interlaken flights

Browse other Chicago and Interlaken flight options. Last updated on November 5, 2026.

Other flights from Chicago

Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.

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Top 10 airlines flying from Chicago to Interlaken

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