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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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ZRH
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Interlaken are usually found in February or January, booked 62 days in advance, depart on a Tuesday or Monday and return on a Sunday

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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$643
(oojo)

One-way from

$399
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,097
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. 18% potential increase in price ($227 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 April 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 April 4, 2025.

This oojo deal was found by Cheapflights users on 4/4. 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 8/1510:05 pmIAD - ZRH
1 stop29h 35mScandinavian Airlines
Sat 8/306:00 pmZRH - IAD
2 stops31h 59mScandinavian Airlines
Deal found 4/4$643
This oojo deal was found by Cheapflights users on 4/2. 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 12/3110:30 pmIAD - ZRH
1 stop18h 05mTAP AIR PORTUGAL
Wed 1/71:30 pmZRH - IAD
1 stop31h 45mTAP AIR PORTUGAL
Deal found 4/2$645
This oojo deal was found by Cheapflights users on 4/3. 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 4/239:40 pmIAD - ZRH
1 stop18h 40mTurkish Airlines
Tue 4/296:40 pmZRH - IAD
1 stop23h 05mTurkish Airlines
Deal found 4/3$647
This Mytrip deal was found by Cheapflights users on 4/4. 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 4/288:30 pmIAD - ZRH
3 stops17h 15mMultiple Airlines
Mon 5/59:40 amZRH - IAD
2 stops35h 40mMultiple Airlines
Deal found 4/4$713
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Mon 11/175:30 pmIAD - ZRH
Nonstop8h 10mUnited Airlines
Tue 12/21:00 pmZRH - IAD
Nonstop9h 30mUnited Airlines
Deal found 4/3$724
This Delta deal was found by Cheapflights users on 4/4. 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 11/255:10 pmIAD - ZRH
1 stop11h 20mDelta
Thu 12/49:00 amZRH - IAD
1 stop12h 45mDelta
Deal found 4/4$751
This FlightHub deal was found by Cheapflights users on 4/3. 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.
Sun 8/35:20 pmIAD - ZRH
1 stop11h 15mAer Lingus
Wed 8/1311:15 amZRH - IAD
1 stop14h 15mAer Lingus
Deal found 4/3$755
This SWISS deal was found by Cheapflights users on 4/4. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:45 pmIAD - ZRH
Nonstop8h 05mSWISS
Tue 10/2112:50 pmZRH - IAD
Nonstop9h 25mSWISS
Deal found 4/4$773
This American Airlines deal was found by Cheapflights users on 4/3. 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.
Thu 11/2710:52 amIAD - ZRH
2 stops15h 23mAmerican Airlines
Sat 12/610:15 amZRH - IAD
2 stops19h 40mAmerican Airlines
Deal found 4/3$783
This oojo deal was found by Cheapflights users on 4/3. 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 8/74:30 pmIAD - ZRH
1 stop19h 45mITA Airways
Sun 8/247:05 pmZRH - IAD
1 stop25h 35mITA Airways
Deal found 4/3$799
This oojo deal was found by Cheapflights users on 4/3. 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.
Sun 5/48:30 pmIAD - ZRH
1 stop10h 35mIcelandair
Thu 5/82:00 pmZRH - IAD
1 stop11h 20mIcelandair
Deal found 4/3$801
This Lufthansa deal was found by Cheapflights users on 4/3. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:50 pmIAD - ZRH
2 stops12h 25mLufthansa
Fri 11/287:10 amZRH - IAD
2 stops14h 40mLufthansa
Deal found 4/3$812

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 April 4, 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

Fri 8/15

10:05 pm-9:40 am

1 stop29h 35m

Zurich

Sat 8/30

6:00 pm-7:59 pm

2 stops31h 59m

$643

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 4/23

9:40 pm-10:20 pm

1 stop18h 40m

Zurich

Tue 4/29

6:40 pm-11:45 am

1 stop23h 05m

$647

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Tue 8/12

10:20 pm-10:30 pm

1 stop18h 10m

Zurich

Thu 8/21

6:00 am-3:20 pm

1 stop15h 20m

$685

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 4/28

8:30 pm-7:45 pm

3 stops17h 15m

Zurich

Mon 5/5

9:40 am-3:20 pm

2 stops35h 40m

$713

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sun 8/3

5:20 pm-10:35 am

1 stop11h 15m

Zurich

Wed 8/13

11:15 am-7:30 pm

1 stop14h 15m

$755

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Thu 8/7

4:30 pm-6:15 pm

1 stop19h 45m

Zurich

Sun 8/24

7:05 pm-2:40 pm

1 stop25h 35m

$799

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sun 5/4

8:30 pm-1:05 pm

1 stop10h 35m

Zurich

Thu 5/8

2:00 pm-7:20 pm

1 stop11h 20m

$801

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sun 4/20

8:45 pm-10:50 am

Nonstop8h 05m

Zurich

Tue 5/6

12:50 pm-4:15 pm

Nonstop9h 25m

$818

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 4/30

10:15 pm-11:40 am

1 stop31h 25m

Zurich

Wed 5/7

11:55 am-3:15 pm

Nonstop9h 20m

$822

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Sun 8/3

8:18 am-6:10 am

2 stops15h 52m

Zurich

Fri 8/22

1:25 pm-9:37 am

1 stop26h 12m

$825

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 25 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 March 28, 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 $1,274). 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 April 4, 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 April 4, 2025.

The most flights from IAD to IN9 are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Interlaken by month

Plan your trip to Interlaken by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Interlaken ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Interlaken when rainfall is around 2.5 in.

Temperature in Interlaken by month

Plan your trip to Interlaken by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Interlaken, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 4, 2025.
To help decide which airline to fly from Washington, D.C. to Interlaken, see what other customers have to say about Delta, Austrian Airlines and SWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,900 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
772 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,574 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,618 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Turkish Airlines
7.3
Good
3,751 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 Scandinavian Airlines, which is currently one of the cheapest options available, starting at $400. TAP AIR PORTUGAL flights start at $439 while deals on Turkish Airlines start at $532 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 (74%), United Airlines (74%), SWISS( 74%).

  • 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 $3,828, our data indicates the cheapest price to be $446. The most popular route (Washington, D.C. Dulles Intl - Zurich), is priced around $504.

  • 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 $1,274). 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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$375Average$577FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$386Average$602FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$503Average$718FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$538Average$676FlexibilityNo cancel feeOn-time77%
DeltaCheapest$548Average$984FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$555Average$885FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$609Average$862FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$719Average$1,208FlexibilityNo cancel feeOn-time69%
SWISSCheapest$724Average$1,151FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$751Average$1,063FlexibilityNo cancel feeOn-time76%

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