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Interlaken

$280+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Interlaken are usually found in October or January, booked 71 days in advance, depart on a Tuesday or Friday 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 November 19, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$379
(CrystalTravel)

One-way from

$280
(Ovago)

Popular in

June

Cheapest in

October

Average price

$563
Provider with most accurate pricing for Seattle/Tacoma Intl-Zurich flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Zurich flights.
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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. 15% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 19, 2025.

This FlightHub deal was found by Cheapflights users on 11/18. 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 12/32:35 pmSEA - ZRH
1 stop12h 30mIcelandair
Tue 12/91:00 pmZRH - SEA
1 stop13h 00mIcelandair
Deal found 11/18$390
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:35 pmSEA - ZRH
1 stop12h 30mIcelandair
Sat 12/61:00 pmZRH - SEA
1 stop13h 00mIcelandair
Deal found 11/17$435
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:20 amSEA - ZRH
1 stop18h 10mDelta
Wed 12/31:30 pmZRH - SEA
1 stop17h 53mDelta
Deal found 11/17$454
This Delta deal was found by Cheapflights users on 11/18. 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 12/21:40 pmSEA - ZRH
1 stop19h 10mDelta
Wed 12/101:30 pmZRH - SEA
1 stop17h 53mDelta
Deal found 11/18$469
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:40 pmSEA - ZRH
1 stop12h 40mCondor
Thu 12/411:35 amZRH - SEA
1 stop13h 05mCondor
Deal found 11/19$470
This Delta deal was found by Cheapflights users on 11/18. 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 12/32:05 pmSEA - ZRH
2 stops18h 45mDelta
Thu 12/111:30 pmZRH - SEA
1 stop17h 53mDelta
Deal found 11/18$473
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:20 amSEA - ZRH
1 stop18h 10mDelta
Mon 12/89:00 amZRH - SEA
1 stop35h 50mDelta
Deal found 11/17$476
This Delta deal was found by Cheapflights users on 11/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:00 amSEA - ZRH
2 stops19h 30mDelta
Tue 12/212:00 pmZRH - SEA
1 stop32h 50mDelta
Deal found 11/17$480
This CrystalTravel deal was found by Cheapflights users on 11/18. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:10 pmSEA - ZRH
1 stop21h 35mMultiple Airlines
Wed 1/141:15 pmZRH - SEA
1 stop16h 57mMultiple Airlines
Deal found 11/18$483
This United Airlines deal was found by Cheapflights users on 11/18. 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.
Wed 12/316:00 amSEA - ZRH
2 stops20h 55mUnited Airlines
Wed 1/141:20 pmZRH - SEA
2 stops42h 55mUnited Airlines
Deal found 11/18$484

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 November 19, 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 3/11

3:35 pm-12:05 pm

1 stop12h 30m

Zurich

Sun 3/15

1:00 pm-6:00 pm

1 stop13h 00m

$436

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 12/3

2:05 pm-5:50 pm

2 stops18h 45m

Zurich

Thu 12/11

1:30 pm-10:23 pm

1 stop17h 53m

$473

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 2/10

2:02 pm-7:40 pm

2 stops20h 38m

Zurich

Thu 2/26

10:25 am-11:23 pm

2 stops21h 58m

$494

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Fri 2/13

3:40 pm-4:45 pm

2 stops16h 05m

Zurich

Mon 2/23

1:15 pm-9:01 pm

1 stop16h 46m

$496

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 2/15

3:40 pm-4:45 pm

2 stops16h 05m

Zurich

Mon 2/23

1:15 pm-9:01 pm

1 stop16h 46m

$496

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Thu 1/8

8:40 am-2:45 pm

3 stops21h 05m

Zurich

Thu 1/15

1:20 pm-10:16 pm

1 stop17h 56m

$497

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sat 3/7

8:00 pm-4:45 pm

2 stops35h 45m

Zurich

Tue 3/17

9:40 am-12:59 am

2 stops23h 19m

$500

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 2/10

7:00 am-10:40 am

1 stop18h 40m

Zurich

Fri 2/20

1:20 pm-10:16 pm

1 stop17h 56m

$501

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 2/11

7:00 am-7:55 am

1 stop15h 55m

Zurich

Fri 2/20

1:20 pm-10:16 pm

1 stop17h 56m

$501

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Fri 2/20

3:10 pm-9:45 pm

1 stop21h 35m

Zurich

Sat 2/28

7:05 am-12:10 pm

1 stop14h 05m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 20 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 November 14, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 71 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, April is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $361). Flying from Seattle to Interlaken in June is currently the most expensive (average of $570). 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 November 19, 2025.

When flying from Seattle to Interlaken, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight at noon.

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 Wednesday afternoons when fares are most often at their lowest. Thursday 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 November 19, 2025.
Peruse reviews from past customers who have flown with Delta, SWISS, and Icelandair 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
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,004 reviews
Delta
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
SWISS
7.5
Good
1,788 reviews
Delta
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.0
Good
581 reviews
Delta
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,579 reviews
Delta
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,534 reviews
Delta
7.9
Good
8,004 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Seattle to Interlaken?

    There are many flights that can get you from Seattle to Interlaken in 12h 30m. Fly via Icelandair to get the fastest option. Airlines will cover a distance of 5241 mi.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $403 for a flight from Seattle to Interlaken. The cheapest flight overall is $306 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $379.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $361). Flying from Seattle to Interlaken in June is currently the most expensive (average of $570). 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 November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$384Average$496FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$395Average$552FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$435Average$786FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$452Average$793FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$455Average$677FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$481Average$685FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$497Average$744FlexibilityNo cancel feeOn-time76%
CondorCheapest$500Average$688FlexibilityNo cancel feeOn-time76%
DeltaCheapest$503Average$781FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$511Average$832FlexibilityNo cancel feeOn-time79%

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