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Interlaken

$194+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
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 18, 2025.

Round-trip from

$450
(United Airlines)

One-way from

$194
(Delta)

Popular in

June

Cheapest in

November

Average price

$763
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 ($111 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 18, 2025.

This FlightHub deal was found by Cheapflights users on 7/17. 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 10/14:20 pmSEA - ZRH
1 stop32h 20mScandinavian Airlines
Tue 10/78:25 pmZRH - SEA
1 stop26h 35mScandinavian Airlines
Deal found 7/17$453
This Delta deal was found by Cheapflights users on 7/16. 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.
Wed 7/237:40 amSEA - ZRH
1 stop15h 25mDelta
Tue 8/2610:10 amZRH - SEA
1 stop19h 15mDelta
Deal found 7/16$454
This American Airlines deal was found by Cheapflights users on 7/16. 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 11/1011:51 amSEA - ZRH
2 stops18h 39mAmerican Airlines
Fri 12/510:15 amZRH - SEA
1 stop20h 41mAmerican Airlines
Deal found 7/16$458
This Gotogate deal was found by Cheapflights users on 7/17. 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.
Fri 10/173:45 pmSEA - ZRH
1 stop12h 20mIcelandair
Sun 11/91:00 pmZRH - SEA
1 stop13h 00mIcelandair
Deal found 7/17$459
This Booking.com deal was found by Cheapflights users on 7/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:50 amSEA - ZRH
2 stops19h 35mMultiple Airlines
Fri 1/91:15 pmZRH - SEA
1 stop16h 44mMultiple Airlines
Deal found 7/17$501
This Air Canada deal was found by Cheapflights users on 7/17. 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 12/305:50 amSEA - ZRH
2 stops19h 35mAir Canada
Fri 1/91:15 pmZRH - SEA
2 stops34h 11mAir Canada
Deal found 7/17$502
This Ovago deal was found by Cheapflights users on 7/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:20 pmSEA - ZRH
1 stop14h 30mBritish Airways
Wed 10/299:10 pmZRH - SEA
2 stops30h 19mBritish Airways
Deal found 7/17$505
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Sat 9/65:35 pmSEA - ZRH
1 stop31h 45mUnited Airlines
Fri 9/269:55 amZRH - SEA
1 stop34h 04mUnited Airlines
Deal found 7/17$513

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 18, 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

Wed 10/1

4:20 pm-9:40 am

1 stop32h 20m

Zurich

Tue 10/7

8:25 pm-2:00 pm

1 stop26h 35m

$453

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 7/23

7:40 am-8:05 am

1 stop15h 25m

Zurich

Tue 8/26

10:10 am-8:25 pm

1 stop19h 15m

$454

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 8/10

7:00 pm-1:05 pm

1 stop33h 05m

Zurich

Thu 8/21

2:00 pm-8:40 pm

1 stop15h 40m

$477

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 10/15

8:20 pm-7:50 pm

1 stop14h 30m

Zurich

Wed 10/29

9:10 pm-7:29 pm

2 stops30h 19m

$505

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sat 9/6

7:34 pm-10:20 am

1 stop29h 46m

Zurich

Thu 9/25

9:55 am-10:59 am

1 stop34h 04m

$513

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-11:45 am

Nonstop10h 20m

Zurich

Thu 9/25

1:50 pm-6:36 pm

2 stops37h 46m

$519

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/9

3:00 pm-11:05 am

2 stops35h 05m

Zurich

Tue 9/23

7:30 am-8:09 pm

2 stops21h 39m

$523

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 7/21

7:15 am-10:35 am

1 stop18h 20m

$194

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/25

7:44 am-8:00 pm

2 stops27h 16m

$199

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 8/25

9:45 pm-8:50 am

1 stop26h 05m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 19 results
1
2

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 11, 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 $1,153). 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 18, 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 18, 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
7,958 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
7,958 reviews
Delta
8.0
Very good
7,958 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!
KLM
7.8
Good
1,374 reviews
Delta
8.0
Very good
7,958 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!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,958 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!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,958 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
1,661 reviews
Delta
8.0
Very good
7,958 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.

  • 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?

    $194 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on British Airways and American Airlines, with prices starting from $199 and $205, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $603 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 $403.

  • 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 $1,153). 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$296Average$522FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$400Average$587FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$443Average$674FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$467Average$621FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$491Average$766FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$513Average$717FlexibilityNo cancel feeOn-time69%
DeltaCheapest$514Average$784FlexibilityNo cancel feeOn-timeN/A
CondorCheapest$514Average$750FlexibilityNo cancel feeOn-time76%
KLMCheapest$531Average$839FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$535Average$829FlexibilityNo cancel feeOn-time77%

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