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Interlaken

$253+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ZRH
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Interlaken are usually found in October or November, booked 62 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap 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 diciembre 4, 2025.

This oojo deal was found by Cheapflights users on 12/4. 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.
mié. 12/3110:30 pmIAD - ZRH
1 stop18h 05mTAP AIR PORTUGAL
lun. 1/121:30 pmZRH - IAD
1 stop31h 05mTAP AIR PORTUGAL
Deal found 12/4$688
This FlightHub deal was found by Cheapflights users on 12/3. 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.
mié. 12/3110:30 pmIAD - ZRH
1 stop18h 05mTAP AIR PORTUGAL
dom. 1/116:00 pmZRH - IAD
1 stop27h 15mTAP AIR PORTUGAL
Deal found 12/3$709
This oojo deal was found by Cheapflights users on 12/2. 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.
jue. 12/116:10 pmIAD - ZRH
1 stop16h 40mSWISS
sáb. 12/133:30 pmZRH - IAD
1 stop34h 45mSWISS
Deal found 12/2$723
This FlightHub deal was found by Cheapflights users on 12/3. 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.
dom. 12/710:30 pmIAD - ZRH
1 stop12h 40mTAP AIR PORTUGAL
lun. 12/151:30 pmZRH - IAD
1 stop31h 05mTAP AIR PORTUGAL
Deal found 12/3$726
This FlightHub deal was found by Cheapflights users on 12/3. 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.
dom. 12/712:19 pmIAD - ZRH
2 stops25h 21mScandinavian Airlines
sáb. 12/138:25 pmZRH - IAD
2 stops45h 14mScandinavian Airlines
Deal found 12/3$737
This FlightHub deal was found by Cheapflights users on 12/3. 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.
sáb. 12/65:30 pmIAD - ZRH
2 stops39h 30mTAP AIR PORTUGAL
lun. 12/153:45 pmZRH - IAD
2 stops28h 50mTAP AIR PORTUGAL
Deal found 12/3$740
This oojo deal was found by Cheapflights users on 12/3. 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.
sáb. 12/65:30 pmIAD - ZRH
1 stop17h 40mTAP AIR PORTUGAL
dom. 12/146:00 pmZRH - IAD
1 stop27h 15mTAP AIR PORTUGAL
Deal found 12/3$749
This FlightHub deal was found by Cheapflights users on 12/3. 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.
mié. 12/318:30 pmIAD - ZRH
1 stop31h 10mScandinavian Airlines
dom. 1/118:25 pmZRH - IAD
2 stops28h 44mScandinavian Airlines
Deal found 12/3$763

Find 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 diciembre 4, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$596
(Gurufare)

One-way from

$253
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,076
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.
Search Deals
From Washington, D.C. Dulles Intl to Interlaken
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Interlaken
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 diciembre 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

dom. 2/22

10:30 pm-5:10 pm

1 stop12h 40m

Zurich

sáb. 2/28

3:45 pm-3:15 pm

2 stops53h 30m

$632

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

sáb. 2/14

8:30 pm-6:05 pm

2 stops15h 35m

Zurich

dom. 2/22

6:50 pm-5:15 pm

2 stops28h 25m

$648

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

vie. 2/27

7:40 pm-12:05 pm

1 stop10h 25m

Zurich

mar. 3/31

2:00 pm-7:20 pm

1 stop11h 20m

$654

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

mié. 1/21

5:45 pm-7:40 am

Nonstop7h 55m

Zurich

jue. 1/29

1:05 pm-4:40 pm

Nonstop9h 35m

$708

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

sáb. 2/28

10:30 pm-7:55 am

1 stop27h 25m

Zurich

mar. 3/31

11:55 am-3:15 pm

Nonstop9h 20m

$724

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

jue. 2/12

8:30 pm-6:10 pm

2 stops15h 40m

Zurich

lun. 2/16

7:25 am-5:15 pm

2 stops15h 50m

$732

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

dom. 3/1

8:30 pm-10:35 am

Nonstop8h 05m

Zurich

lun. 3/30

12:55 pm-4:20 pm

Nonstop9h 25m

$758

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

lun. 3/2

5:45 pm-7:40 am

Nonstop7h 55m

Zurich

lun. 3/30

11:55 am-3:15 pm

Nonstop9h 20m

$758

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

jue. 1/22

10:15 pm-2:45 pm

1 stop10h 30m

Zurich

mar. 1/27

11:45 am-3:30 pm

Nonstop9h 45m

$904

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

vie. 1/23

8:30 pm-10:35 am

Nonstop8h 05m

Zurich

mar. 1/27

1:05 pm-4:40 pm

Nonstop9h 35m

$908

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 24 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 November 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, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Interlaken (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $669). 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 diciembre 4, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 22% on flights from Washington, D.C. Dulles Intl Airport to Interlaken by exploring options for tickets at noon.

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 diciembre 4, 2025.

The most flights from IAD to IN9 are scheduled on a Thursday (8 on average). You will have fewer flight options on Wednesday, 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 diciembre 4, 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
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
SWISS
7.5
Good
1,800 reviews
SWISS
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Scandinavian Airlines
7.4
Good
1,591 reviews
SWISS
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
United Airlines
7.4
Good
9,063 reviews
SWISS
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Aer Lingus
7.2
Good
1,384 reviews
SWISS
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Icelandair
7.0
Good
584 reviews
SWISS
7.5
Good
1,800 reviews

Comfort

7.4

Overall

7.5

Crew

8.2

Boarding

7.7

Food

7.1

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.

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 $654, TAP AIR PORTUGAL can have you in Interlaken from Washington, D.C. Dulles Intl Airport in 10h 25m. 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 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 $1,389, our data indicates the cheapest price to be $388. The most popular route (Washington, D.C. Dulles Intl - Zurich), is priced around $385.

  • 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 $328). Flying from Washington, D.C. Dulles Intl Airport to Interlaken in June is currently the most expensive (average of $669). 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

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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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$375Average$576FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$387Average$639FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$494Average$797FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$519Average$894FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$530Average$670FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$545Average$778FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$575Average$999FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$589Average$1,048FlexibilityNo cancel feeOn-time69%
SWISSCheapest$618Average$1,065FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$751Average$895FlexibilityNo cancel feeOn-time76%

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