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Interlaken

$399+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ZRH
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
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 October, booked 62 days in advance, depart on a Tuesday or Wednesday 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 January 19, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$554
(Kiwi.com)

One-way from

$399
(oojo)

Popular in

June

Cheapest in

November

Average price

$808
Provider with most accurate pricing for Washington, D.C. (WAS)-Zurich flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Zurich flights.
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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. 17% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 19, 2026.

This FlightHub deal was found by Cheapflights users on 1/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:20 pm
IAD
-
ZRH
2 stops33h 50m
Scandinavian Airlines
Thu 10/1510:25 am
ZRH
-
IAD
1 stop12h 25m
Scandinavian Airlines
Deal found 1/16$552
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:30 pm
IAD
-
ZRH
1 stop17h 10m
Scandinavian Airlines
Mon 2/238:25 pm
ZRH
-
IAD
2 stops28h 44m
Scandinavian Airlines
Deal found 1/16$554
This KAYAK deal was found by Cheapflights users on 1/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 pm
IAD
-
ZRH
2 stops33h 50m
Scandinavian Airlines
Thu 10/1510:25 am
ZRH
-
IAD
1 stop12h 25m
Scandinavian Airlines
Deal found 1/16$556
This Justfly.com deal was found by Cheapflights users on 1/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:20 pm
IAD
-
ZRH
1 stop17h 15m
Turkish Airlines
Fri 5/86:45 pm
ZRH
-
IAD
1 stop22h 50m
Turkish Airlines
Deal found 1/19$557
This FlightHub deal was found by Cheapflights users on 1/17. 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.
Thu 2/268:30 pm
IAD
-
ZRH
2 stops15h 40m
Scandinavian Airlines
Mon 3/96:55 pm
ZRH
-
IAD
2 stops52h 20m
Scandinavian Airlines
Deal found 1/17$558
This Justfly.com deal was found by Cheapflights users on 1/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:45 pm
IAD
-
ZRH
1 stop32h 50m
Turkish Airlines
Tue 9/83:10 pm
ZRH
-
IAD
1 stop26h 25m
Turkish Airlines
Deal found 1/16$560
This Mytrip deal was found by Cheapflights users on 1/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:05 pm
IAD
-
ZRH
2 stops23h 20m
Multiple Airlines
Tue 3/1011:00 am
ZRH
-
IAD
1 stop14h 30m
Multiple Airlines
Deal found 1/17$561
This deal was found by Cheapflights users on 1/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:30 pm
IAD
-
ZRH
1 stop11h 40m
Scandinavian Airlines
Fri 4/1010:25 am
ZRH
-
IAD
1 stop12h 25m
Scandinavian Airlines
Deal found 1/18$562
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/318:30 pm
IAD
-
ZRH
1 stop17h 10m
Scandinavian Airlines
Sat 2/710:25 am
ZRH
-
IAD
1 stop14h 25m
Scandinavian Airlines
Deal found 1/19$563
This AirNGo deal was found by Cheapflights users on 1/17. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:30 pm
IAD
-
ZRH
1 stop18h 05m
TAP AIR PORTUGAL
Tue 3/173:45 pm
ZRH
-
IAD
2 stops35h 15m
TAP AIR PORTUGAL
Deal found 1/17$564

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 January 19, 2026.
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 4/25

8:20 pm-12:10 pm

2 stops33h 50m

Zurich

Sat 5/2

7:25 am-4:50 pm

2 stops15h 25m

$649

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sun 3/8

5:25 pm-6:40 am

Nonstop8h 15m

Zurich

Tue 3/17

10:45 am-3:20 pm

Nonstop9h 35m

$709

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 3/18

5:25 pm-6:40 am

Nonstop8h 15m

Zurich

Sun 3/29

1:10 pm-4:45 pm

Nonstop9h 35m

$759

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 3/9

5:25 pm-6:40 am

Nonstop8h 15m

Zurich

Mon 3/16

10:45 am-3:20 pm

Nonstop9h 35m

$759

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Tue 4/21

1:19 pm-12:10 pm

2 stops16h 51m

Zurich

Sun 4/26

10:05 pm-4:50 pm

2 stops24h 45m

$760

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Thu 3/12

1:19 pm-9:50 am

2 stops15h 31m

Zurich

Thu 3/19

11:55 am-10:59 pm

2 stops16h 04m

$787

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Thu 5/21

8:20 pm-2:10 pm

1 stop11h 50m

Zurich

Fri 6/5

10:25 am-4:50 pm

1 stop12h 25m

$877

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 2/16

12:24 pm-9:40 am

2 stops15h 16m

Zurich

Sat 2/21

7:15 am-6:50 pm

2 stops17h 35m

$893

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 3/11

5:25 pm-6:40 am

Nonstop8h 15m

Zurich

Mon 3/16

10:45 am-3:20 pm

Nonstop9h 35m

$909

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 3/30

8:20 pm-12:10 pm

2 stops33h 50m

Zurich

Sat 4/4

7:20 am-4:50 pm

2 stops15h 30m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 18 results
1
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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 January 16, 2026.

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, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Interlaken (average of $394). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $657). 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 January 19, 2026.

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 January 19, 2026.

The most flights from IAD to IN9 are scheduled on a Tuesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 January 19, 2026.
Get a feel of what it's like to fly with SWISS, United Airlines, and Scandinavian 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
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.
SWISS
7.5
Good
1,855 reviews
SWISS
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.
United Airlines
7.4
Good
9,177 reviews
SWISS
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.
Scandinavian Airlines
7.3
Good
1,655 reviews
SWISS
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.
Aer Lingus
7.2
Good
1,436 reviews
SWISS
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.
Icelandair
7.1
Good
597 reviews
SWISS
7.5
Good
1,855 reviews

Comfort

7.4

Overall

7.5

Crew

8.3

Entertainment

6.8

Food

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Henriette,Dec 2025

FRA - GVA

My experience as a first time Flyer wasfinr except that both times when I flew to Frankfurt and also back to ORTambo my baggage go delayed. That was a bit of an awkward experience. Inve I can understand but twice I knew that I used connecting flights but who that happened to my my bag is really a bit out of the ordinary Although I must say the service to found my bag in Frankfurt was really excellent. Now I am waiting for my baggage to be send to my home airport Bram Fiacher in Bloemfontein. Hope I get it also so soon.

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 $709, United Airlines can have you in Interlaken from Washington, D.C. Dulles Intl Airport in 8h 15m. Washington, D.C. Dulles Intl Airport and Interlaken are separated by a distance of 4144 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Interlaken one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $195. Scandinavian Airlines flights start at $238 while deals on TAP AIR PORTUGAL start at $325 one-way.

  • 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 (82%), United Airlines (82%), SWISS( 82%).

  • 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 $1,364, our data indicates the cheapest price to be $455. The most popular route (Washington, D.C. Dulles Intl - Zurich), is priced around $388.

  • 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, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Interlaken (average of $394). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $657). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$382Average$585FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$387Average$626FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$413Average$709FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$481Average$788FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$519Average$920FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$545Average$728FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$575Average$995FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$588Average$1,021FlexibilityNo cancel feeOn-time69%
SWISSCheapest$615Average$1,013FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$783Average$826FlexibilityNo cancel feeOn-time76%

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