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Interlaken

$240+ Cheap flights from Seattle (SEA) 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Interlaken are usually found in November or January, booked 77 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Seattle to Interlaken

Keep the following information in mind while searching for Seattle to Interlaken flight deals. Data was last updated June 12, 2025.

Round-trip from

$502
(FlightHub)

One-way from

$240
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$900
From Seattle/Tacoma Intl to Interlaken
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One-way flight from Seattle/Tacoma Intl to Interlaken
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Highest demand for flights based on searches. 14% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Seattle to Interlaken

Cheapest flights from Seattle to Interlaken
Explore the most affordable flight options available from Seattle to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. 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.
Sun 8/1011:30 pmSEA - ZRH
1 stop28h 35mIcelandair
Fri 8/222:00 pmZRH - SEA
1 stop12h 50mIcelandair
Deal found 6/11$502
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 8/117:00 amSEA - ZRH
1 stop18h 20mUnited Airlines
Fri 8/221:05 pmZRH - SEA
1 stop18h 10mUnited Airlines
Deal found 6/12$503
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:25 pmSEA - ZRH
Nonstop10h 20mSWISS
Wed 9/241:25 pmZRH - SEA
2 stops42h 50mSWISS
Deal found 6/10$505
This Gotogate deal was found by Cheapflights users on 6/10. 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.
Wed 9/104:00 pmSEA - ZRH
1 stop18h 45mScandinavian Airlines
Tue 9/162:00 pmZRH - SEA
2 stops33h 00mScandinavian Airlines
Deal found 6/10$509
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Tue 9/2310:00 amSEA - ZRH
1 stop16h 25mMultiple Airlines
Tue 10/76:55 amZRH - SEA
2 stops20h 41mMultiple Airlines
Deal found 6/10$514
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Wed 8/1310:00 amSEA - ZRH
1 stop16h 25mAir Canada
Wed 8/207:25 amZRH - SEA
2 stops22h 16mAir Canada
Deal found 6/12$515
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/297:15 amSEA - ZRH
1 stop18h 20mDelta
Fri 8/151:35 pmZRH - SEA
1 stop18h 40mDelta
Deal found 6/10$533
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/151:30 pmSEA - ZRH
1 stop24h 05mBritish Airways
Tue 8/128:45 pmZRH - SEA
1 stop23h 50mBritish Airways
Deal found 6/10$581
This Lufthansa deal was found by Cheapflights users on 6/12. 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.
Tue 7/1510:00 amSEA - ZRH
2 stops15h 40mLufthansa
Tue 8/129:05 pmZRH - SEA
1 stop28h 54mLufthansa
Deal found 6/12$606
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/45:19 amSEA - ZRH
2 stops18h 31mAmerican Airlines
Wed 8/133:20 pmZRH - SEA
1 stop29h 15mAmerican Airlines
Deal found 6/12$654

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 June 12, 2025.
Use the filters below to find and compare flights from Seattle to Interlaken that are best for you.

Fly from

Seattle

Fly to

Interlaken

Route

Depart

Return

Price

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 8/10

11:30 pm-1:05 pm

1 stop28h 35m

Zurich

Fri 8/22

2:00 pm-5:50 pm

1 stop12h 50m

$502

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/11

7:00 am-10:20 am

1 stop18h 20m

Zurich

Fri 8/22

1:05 pm-10:15 pm

1 stop18h 10m

$503

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 9/8

4:25 pm-11:45 am

Nonstop10h 20m

Zurich

Wed 9/24

1:25 pm-11:15 pm

2 stops42h 50m

$505

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 9/10

4:00 pm-7:45 pm

1 stop18h 45m

Zurich

Tue 9/16

2:00 pm-2:00 pm

2 stops33h 00m

$509

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/23

10:00 am-11:25 am

1 stop16h 25m

Zurich

Tue 10/7

6:55 am-6:36 pm

2 stops20h 41m

$514

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 8/13

10:00 am-11:25 am

1 stop16h 25m

Zurich

Wed 8/20

7:25 am-8:41 pm

2 stops22h 16m

$515

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 7/29

7:15 am-10:35 am

1 stop18h 20m

Zurich

Fri 8/15

1:35 pm-11:15 pm

1 stop18h 40m

$533

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 7/15

1:30 pm-10:35 pm

1 stop24h 05m

Zurich

Tue 8/12

8:45 pm-11:35 am

1 stop23h 50m

$581

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 7/15

10:00 am-10:40 am

2 stops15h 40m

Zurich

Tue 8/12

9:05 pm-4:59 pm

1 stop28h 54m

$606

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/4

5:19 am-8:50 am

2 stops18h 31m

Zurich

Wed 8/13

3:20 pm-11:35 am

1 stop29h 15m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 26 results
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Best time to book a flight from Seattle to Interlaken

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

How far ahead should I book a flight from Seattle to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Interlaken. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,182). 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 SEA to IN9?

Find hourly flight availability from Seattle 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 June 12, 2025.

When flying from Seattle 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.

What is the cheapest day to fly from Seattle to Interlaken?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Interlaken. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Interlaken flight should consider departing on Monday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 June 12, 2025.
Peruse reviews from past customers who have flown with Delta, Austrian Airlines and SWISS from Seattle to Interlaken to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
1,387 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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 Seattle 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 Seattle to Interlaken?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Interlaken from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Interlaken should be relatively easy as there are 0 daily outbound flights to Interlaken from 13 different airlines.

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

    $240 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 Lufthansa, with prices starting from $359 and $361, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $1,992 for a flight from Seattle to Interlaken. The cheapest flight overall is $313 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $437.

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

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

  • How can I find direct flights from Seattle to Interlaken?

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,182). 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 10 airlines flying from Seattle to Interlaken

Discover the top 10 airlines that operate flights from Seattle 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
CondorCheapest$320Average$730FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$407Average$604FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$443Average$672FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$467Average$620FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$491Average$727FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$513Average$725FlexibilityNo cancel feeOn-time69%
DeltaCheapest$513Average$776FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$531Average$787FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$535Average$775FlexibilityNo cancel feeOn-time77%
FinnairCheapest$559Average$688FlexibilityNo cancel feeOn-time76%

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