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Interlaken

$259+ Cheap flights from Dulles Intl (IAD) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ZRH
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Interlaken are usually found in November or February, booked 62 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Dulles Intl to Interlaken

Keep the following information in mind while searching for Dulles Intl to Interlaken flight deals. Data was last updated August 20, 2025.

Round-trip from

$570
(oojo)

One-way from

$259
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$797
From Washington, D.C. Dulles Intl to Interlaken
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One-way flight from Washington, D.C. Dulles Intl to Interlaken
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Highest demand for flights based on searches. 19% potential increase in price ($221 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dulles Intl to Interlaken

Cheapest flights from Dulles Intl to Interlaken
Explore the most affordable flight options available from Dulles Intl to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This oojo deal was found by Cheapflights users on 8/20. 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.
Sat 9/1310:05 pmIAD - ZRH
1 stop29h 35mScandinavian Airlines
Tue 9/302:50 pmZRH - IAD
1 stop11h 09mScandinavian Airlines
Deal found 8/20$570
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:05 pmIAD - ZRH
1 stop29h 35mScandinavian Airlines
Sun 10/58:25 pmZRH - IAD
1 stop29h 34mScandinavian Airlines
Deal found 8/19$571
This Gotogate deal was found by Cheapflights users on 8/20. 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 9/510:05 pmIAD - ZRH
1 stop29h 35mScandinavian Airlines
Tue 9/92:00 pmZRH - IAD
2 stops35h 59mScandinavian Airlines
Deal found 8/20$574
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:05 pmIAD - ZRH
2 stops33h 50mScandinavian Airlines
Sun 9/289:35 pmZRH - IAD
2 stops28h 24mScandinavian Airlines
Deal found 8/19$575
This Scandinavian Airlines deal was found by Cheapflights users on 8/19. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:05 pmIAD - ZRH
1 stop29h 35mScandinavian Airlines
Sat 10/1810:20 amZRH - IAD
1 stop15h 39mScandinavian Airlines
Deal found 8/19$576
This Scandinavian Airlines deal was found by Cheapflights users on 8/18. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:30 pmIAD - ZRH
1 stop31h 10mScandinavian Airlines
Sat 12/2710:25 amZRH - IAD
1 stop14h 25mScandinavian Airlines
Deal found 8/18$577
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:30 pmIAD - ZRH
1 stop17h 10mScandinavian Airlines
Sun 11/301:10 pmZRH - IAD
2 stops34h 05mScandinavian Airlines
Deal found 8/19$578
This Scandinavian Airlines deal was found by Cheapflights users on 8/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:05 pmIAD - ZRH
2 stops33h 50mScandinavian Airlines
Fri 9/122:50 pmZRH - IAD
1 stop11h 09mScandinavian Airlines
Deal found 8/20$579
This Scandinavian Airlines deal was found by Cheapflights users on 8/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:05 pmIAD - ZRH
2 stops13h 15mScandinavian Airlines
Tue 10/288:25 pmZRH - IAD
1 stop26h 50mScandinavian Airlines
Deal found 8/17$580
This FlightHub deal was found by Cheapflights users on 8/18. 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.
Mon 9/110:05 pmIAD - ZRH
2 stops33h 15mScandinavian Airlines
Sat 9/610:20 amZRH - IAD
1 stop15h 39mScandinavian Airlines
Deal found 8/18$581
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:05 pmIAD - ZRH
1 stop15h 30mScandinavian Airlines
Sun 9/288:25 pmZRH - IAD
1 stop29h 34mScandinavian Airlines
Deal found 8/18$582
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/110:05 pmIAD - ZRH
1 stop15h 40mScandinavian Airlines
Sat 9/1310:20 amZRH - IAD
1 stop15h 39mScandinavian Airlines
Deal found 8/17$583

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 August 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Interlaken that are best for you.

Fly from

Dulles Intl

Fly to

Interlaken

Route

Depart

Return

Price

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sat 9/13

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Tue 9/30

2:50 pm-7:59 pm

1 stop11h 09m

$570

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Fri 9/26

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Sun 10/5

8:25 pm-7:59 pm

1 stop29h 34m

$571

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 9/17

9:40 pm-9:25 am

1 stop29h 45m

Zurich

Mon 9/22

3:00 pm-11:45 am

1 stop26h 45m

$574

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Fri 9/19

10:05 pm-1:55 pm

2 stops33h 50m

Zurich

Sun 9/28

9:35 pm-7:59 pm

2 stops28h 24m

$575

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 9/22

10:05 pm-7:45 pm

1 stop15h 40m

Zurich

Fri 9/26

8:15 pm-7:59 pm

1 stop29h 44m

$576

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Fri 10/3

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Sat 10/18

10:20 am-7:59 pm

1 stop15h 39m

$576

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sat 10/4

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Fri 10/17

8:15 pm-7:59 pm

1 stop29h 44m

$576

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Thu 9/18

10:05 pm-7:35 pm

1 stop15h 30m

Zurich

Mon 9/29

8:25 pm-7:59 pm

1 stop29h 34m

$576

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sat 9/20

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Tue 9/30

2:50 pm-7:59 pm

1 stop11h 09m

$576

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sat 10/4

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Sat 10/11

10:20 am-7:59 pm

1 stop15h 39m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 23 results
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Best time to book a flight from Dulles Intl to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Interlaken

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Interlaken. Price data was last updated on August 8, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Interlaken may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Interlaken (average of $637). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $1,151). 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 IAD to IN9?

Find hourly flight availability from Dulles Intl 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 August 20, 2025.

When flying from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Interlaken

Explore weekly flight availability from Dulles Intl to Interlaken. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 20, 2025.

The most flights from IAD to IN9 are scheduled on a Monday (8 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

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 August 20, 2025.
Get a feel of what it's like to fly with SWISS, Scandinavian Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Interlaken by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
SWISS
7.6
Good
1,699 reviews
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
Scandinavian Airlines
7.4
Good
1,471 reviews
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
United Airlines
7.4
Good
8,928 reviews
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
Aer Lingus
7.2
Good
1,225 reviews
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.
Icelandair
7.0
Good
529 reviews
SWISS
7.6
Good
1,699 reviews

Boarding

7.7

Crew

8.3

Entertainment

6.8

Food

7.1

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

AMS - ZRH

Efficient, professional on board attendants. Food offering just right. On time.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Interlaken. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Interlaken?

    For as low as $570, Scandinavian Airlines can have you in Interlaken from Washington, D.C. Dulles Intl Airport in 29h 35m. Washington, D.C. Dulles Intl Airport and Interlaken are separated by a distance of 4144 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Interlaken?

    Before booking your flight to Interlaken from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (64%), United Airlines (64%), SWISS( 64%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Interlaken?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Interlaken? While on average our users pay $1,297, our data indicates the cheapest price to be $434. The most popular route (Washington, D.C. Dulles Intl - Zurich), is priced around $427.

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

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

  • How can I find direct flights from Dulles Intl to Interlaken?

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Interlaken (average of $637). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $1,151). 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 Dulles Intl to Interlaken

Discover the top 10 airlines that operate flights from Dulles Intl 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$375Average$569FlexibilityNo cancel feeOn-time77%
DeltaCheapest$382Average$867FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$387Average$624FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$494Average$861FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$503Average$704FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$530Average$646FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$547Average$1,002FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$612Average$1,069FlexibilityNo cancel feeOn-time69%
SWISSCheapest$621Average$1,049FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$751Average$929FlexibilityNo cancel feeOn-time76%

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