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Interlaken

$275+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 26 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 July 30, 2025.

Round-trip from

$440
(oojo)

One-way from

$275
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$766
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 ($112 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 July 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 July 30, 2025.

This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/282:35 pmSEA - ZRH
1 stop12h 30mIcelandair
Tue 12/91:00 pmZRH - SEA
1 stop13h 00mIcelandair
Deal found 7/29$436
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:29 pmSEA - ZRH
1 stop16h 11mSWISS
Wed 9/171:25 pmZRH - SEA
1 stop14h 11mSWISS
Deal found 7/27$441
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.
Tue 8/510:05 pmSEA - ZRH
1 stop25h 00mUnited Airlines
Mon 8/259:50 amZRH - SEA
1 stop21h 30mUnited Airlines
Deal found 7/28$454
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:20 pmSEA - ZRH
1 stop18h 25mScandinavian Airlines
Fri 10/1710:20 amZRH - SEA
1 stop12h 40mScandinavian Airlines
Deal found 7/30$462
This Air Canada deal was found by Cheapflights users on 7/27. 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 9/910:00 amSEA - ZRH
1 stop16h 25mAir Canada
Thu 9/181:25 pmZRH - SEA
1 stop14h 11mAir Canada
Deal found 7/27$469
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:20 amSEA - ZRH
1 stop15h 45mDelta
Wed 8/207:45 amZRH - SEA
1 stop18h 50mDelta
Deal found 7/30$474
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:20 amSEA - ZRH
2 stops19h 40mMultiple Airlines
Mon 8/251:10 pmZRH - SEA
1 stop18h 49mMultiple Airlines
Deal found 7/28$483
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/53:13 pmSEA - ZRH
2 stops22h 07mIberia
Tue 8/197:30 amZRH - SEA
2 stops25h 11mIberia
Deal found 7/28$485

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 July 30, 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

Tue 10/7

3:45 pm-1:05 pm

1 stop12h 20m

Zurich

Wed 10/15

2:00 pm-5:50 pm

1 stop12h 50m

$440

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/9

2:29 pm-3:40 pm

1 stop16h 11m

Zurich

Wed 9/17

1:25 pm-6:36 pm

1 stop14h 11m

$441

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 8/5

8:00 am-8:05 am

1 stop15h 05m

Zurich

Tue 8/26

11:55 am-8:42 pm

1 stop17h 47m

$454

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 10/1

4:20 pm-7:45 pm

1 stop18h 25m

Zurich

Fri 10/17

10:20 am-2:00 pm

1 stop12h 40m

$462

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/9

10:00 am-11:25 am

1 stop16h 25m

Zurich

Thu 9/18

1:25 pm-6:36 pm

1 stop14h 11m

$469

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 8/12

7:20 am-8:05 am

1 stop15h 45m

Zurich

Wed 8/20

7:45 am-5:35 pm

1 stop18h 50m

$474

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/18

7:20 am-12:00 pm

2 stops19h 40m

Zurich

Mon 8/25

1:10 pm-10:59 pm

1 stop18h 49m

$483

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 8/5

3:13 pm-10:20 pm

2 stops22h 07m

Zurich

Tue 8/19

7:30 am-11:41 pm

2 stops25h 11m

$485

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sat 9/20

9:39 pm-9:45 am

2 stops51h 06m

$275

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/18

3:45 pm-1:05 pm

1 stop12h 20m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 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 July 25, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 26 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 $1,152). 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 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 July 30, 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.

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 July 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Finnair 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
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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 14 different airlines.

  • How popular is this Seattle to Interlaken flight route?

    Flights from Seattle/Tacoma Intl to Interlaken have been viewed 1 times in the past calendar month.

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

    $283 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Delta and British Airways, with prices starting from $288 and $294, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $1,029 for a flight from Seattle to Interlaken. The cheapest flight overall is $214 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $429.

  • 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 $1,152). 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

Browse thousands of different options on Cheapflights for your next trip

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$296Average$522FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$400Average$582FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$435Average$860FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$443Average$677FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$452Average$792FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$486Average$624FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$491Average$765FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$513Average$712FlexibilityNo cancel feeOn-time69%
DeltaCheapest$513Average$767FlexibilityNo cancel feeOn-timeN/A
CondorCheapest$514Average$750FlexibilityNo cancel feeOn-time76%

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