How long is the flight from Washington, D.C. to Interlaken?

A quick flight from Washington, D.C. to Interlaken can take about 10h 25m. Icelandair provides one of the quickest options available for as low as $552. There are 4101 mi between Washington, D.C. and Interlaken. This flight may include one or multiple stops.

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

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $468. British Airways flights start at $473 while deals on Icelandair start at $493 one-way.

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.

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).

What are the most popular routes from Washington, D.C. to Interlaken?

The most popular route from Washington, D.C. to Interlaken is Washington, D.C. Dulles Intl - Zurich. You may also consider Washington, D.C. Reagan-National - Zurich or Baltimore/Washington - Zurich.

What are the cheapest flights from Washington, D.C. to Interlaken?

On average you can expect to pay $1,297 for a flight from Washington, D.C. to Interlaken. The cheapest flight overall is $434 while the most popular route, (Washington, D.C. Dulles Intl - Zurich) is currently priced at $427.

What are the most reliable airlines from Washington, D.C. to Interlaken?

Before booking your flight to Interlaken from Washington, D.C., 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 most popular airlines that fly from Washington, D.C. to Interlaken?

British Airways, Delta and Aer Lingus are the most popular airlines when flying from Washington, D.C. to Interlaken.

How far in advance should I book a flight from Washington, D.C. to Interlaken?

To save up to 15% on this flight, we recommend booking at least 13 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. to Interlaken from $628 1-2 weeks out and tickets from $1,089 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. to Interlaken?

The best pricing can be found in the month of November. Prices to Interlaken from Washington, D.C. average $876. You can even find prices in November for less than $876, as users have found deals to Interlaken from as low as $380. The month of June appears to be one of the more expensive times to travel to Interlaken from Washington, D.C.. Flying in the targeted month can save you up to 34%.

Can I find deals for flights from Washington, D.C. to Interlaken that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Interlaken?

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

Can I find deals for business class flights from Washington, D.C. to Interlaken?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$259+ Flights from Washington, D.C. to Interlaken

Q: How much does it cost to fly round-trip from Washington, D.C. to Interlaken?

Airfare is below average for this route at the moment. Washington, D.C. to Interlaken flights typically cost between $630 and $946 in January. The cheapest round-trip price found within the last 3 days was $552 on Icelandair (Jan 14-Jan 20).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Interlaken are usually found in November or January, booked 90 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Interlaken

Round-trip from	$552 (oojo)
One-way from	$259 (Trip.com)
Popular in	June
Cheapest in	November
Average price	$734

From Washington, D.C. (WAS) to Interlaken

Search Deals

One-way flight from Washington, D.C. (WAS) to Interlaken

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

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Find flight deals from Washington, D.C. to Interlaken

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

Tue 10/148:30 pmBWI - ZRH

1 stop10h 35mIcelandair

Sat 11/11:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/19

$552

Wed 10/298:40 pmBWI - ZRH

1 stop10h 25mIcelandair

Tue 11/41:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/18

$555

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

Mon 10/278:40 pmBWI - ZRH

1 stop10h 25mIcelandair

Thu 11/61:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/18

$570

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

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

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

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

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

Fri 10/318:40 pmBWI - ZRH

1 stop10h 25mIcelandair

Thu 11/61:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/18

$577

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

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

Best flights from Washington, D.C. to Interlaken
Discover carefully curated flight deals from Washington, D.C. to Interlaken that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2025.

Wed 1/147:40 pmBWI - ZRH

1 stop10h 25mIcelandair

Tue 1/201:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/18

$552

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

Wed 9/179:40 pmIAD - ZRH

1 stop29h 45mTurkish Airlines

Mon 9/223:00 pmZRH - IAD

1 stop26h 45mTurkish Airlines

Deal found 8/19

$574

Wed 10/2912:54 pmDCA - ZRH

1 stop14h 21mAmerican Airlines

Wed 11/510:15 amZRH - DCA

1 stop16h 43mAmerican Airlines

Deal found 8/18

$602

Wed 11/198:35 pmBWI - ZRH

1 stop15h 50mBritish Airways

Wed 11/2612:35 pmZRH - BWI

1 stop12h 10mBritish Airways

Deal found 8/19

$615

Mon 10/276:00 amDCA - ZRH

1 stop19h 15mAir Canada

Tue 11/412:40 pmZRH - DCA

1 stop15h 16mAir Canada

Deal found 8/18

$639

Tue 10/148:30 pmBWI - ZRH

1 stop10h 35mIcelandair

Sat 11/11:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/19

$552

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

Tue 11/181:45 pmDCA - ZRH

1 stop12h 30mAmerican Airlines

Tue 11/2510:15 amZRH - DCA

1 stop11h 55mAmerican Airlines

Deal found 8/17

$602

Fri 1/307:40 pmBWI - ZRH

1 stop10h 25mIcelandair

Sun 2/81:00 pmZRH - BWI

1 stop11h 40mIcelandair

Deal found 8/19

$552

Wed 11/198:35 pmBWI - ZRH

1 stop15h 50mBritish Airways

Mon 11/247:35 pmZRH - BWI

1 stop29h 10mBritish Airways

Deal found 8/18

$615

Fri 9/1910:05 pmIAD - ZRH

2 stops33h 50mScandinavian Airlines

Sun 9/289:35 pmZRH - IAD

2 stops28h 24mScandinavian Airlines

Deal found 8/20

$575

Last-minute flights from Washington, D.C. to Interlaken
Discover last-minute flight deals from Washington, D.C. to Interlaken. Data last updated August 20, 2025 and is based on user searches.

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

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

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

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

Sat 9/610:05 pmIAD - ZRH

1 stop29h 35mScandinavian Airlines

Sun 9/1410:20 amZRH - IAD

1 stop15h 39mScandinavian Airlines

Deal found 8/17

$576

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

Wed 9/171:30 pmIAD - ZRH

1 stop17h 15mTurkish Airlines

Thu 9/256:40 pmZRH - IAD

1 stop23h 05mTurkish Airlines

Deal found 8/19

$585

Wed 9/1712:08 pmIAD - ZRH

2 stops20h 02mScandinavian Airlines

Thu 10/210:20 amZRH - IAD

1 stop15h 39mScandinavian Airlines

Deal found 8/17

$590

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

Sat 9/2010:05 pmIAD - ZRH

2 stops33h 15mScandinavian Airlines

Mon 9/292:00 pmZRH - IAD

2 stops35h 59mScandinavian Airlines

Deal found 8/17

$588

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

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

One-way flights from Washington, D.C. to Interlaken
Search for one-way flight options from Washington, D.C. to Interlaken. Find affordable one-way fares based on user searches. Data last updated August 20, 2025.

Tue 9/1610:20 pmIAD - ZRH

2 stops18h 00mMultiple Airlines

Deal found 8/18

$259

Sun 9/146:50 pmBWI - ZRH

2 stops32h 50mMultiple Airlines

Deal found 8/20

$282

Mon 9/155:45 pmIAD - ZRH

2 stops34h 25mMultiple Airlines

Deal found 8/18

$284

Mon 10/276:30 pmIAD - ZRH

2 stops35h 40mMultiple Airlines

Deal found 8/18

$289

Wed 10/156:50 pmBWI - ZRH

2 stops20h 05mMultiple Airlines

Deal found 8/18

$294

Mon 11/34:53 pmBWI - ZRH

3 stops44h 42mMultiple Airlines

Deal found 8/18

$302

Wed 9/2410:20 pmIAD - ZRH

1 stop12h 55mTAP AIR PORTUGAL

Deal found 8/18

$305

Wed 9/2410:20 pmIAD - ZRH

2 stops17h 00mMultiple Airlines

Deal found 8/18

$308

Mon 9/155:45 pmIAD - ZRH

1 stop17h 30mTAP AIR PORTUGAL

Deal found 8/18

$310

Sun 9/1410:20 pmIAD - ZRH

2 stops27h 35mMultiple Airlines

Deal found 8/20

$312

Sun 10/2611:30 pmIAD - ZRH

3 stops40h 20mMultiple Airlines

Deal found 8/18

$317

Tue 8/265:00 pmIAD - ZRH

2 stops36h 05mMultiple Airlines

Deal found 8/18

$318

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Interlaken that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Wed 1/14

7:40 pm-12:05 pm

1 stop10h 25m

Zurich

Tue 1/20

1:00 pm-6:40 pm

1 stop11h 40m

$552

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Tue 10/14

8:30 pm-1:05 pm

1 stop10h 35m

Zurich

Sat 11/1

1:00 pm-7:40 pm

1 stop11h 40m

$552

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Fri 1/30

7:40 pm-12:05 pm

1 stop10h 25m

Zurich

Sun 2/8

1:00 pm-6:40 pm

1 stop11h 40m

$552

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 58 results

...

Best time to book a flight from Washington, D.C. to Interlaken

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

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Interlaken, you should look to book at least 90 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 Washington, D.C. to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Interlaken (average of $637). Flying from Washington, D.C. 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 WAS to IN9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Interlaken as you normally would.

What is the cheapest day to fly from Washington, D.C. to Interlaken?

Travelers seeking maximum savings on their Washington, D.C. to Interlaken flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Interlaken

The most flights from WAS 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).

How much does it cost to fly round-trip from Washington, D.C. to Interlaken?

Reviews of airlines servicing Interlaken

See what other customers who have flown with SWISS, Scandinavian Airlines, and United Airlines from Washington, D.C. to Interlaken have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.6

Good

1,699 reviews

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

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

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

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2025

AMS - ZRH

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

Aer Lingus

7.1

Good

1,228 reviews

SWISS

7.6

Good

1,699 reviews

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

528 reviews

SWISS

7.6

Good

1,699 reviews

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

How long is the flight from Washington, D.C. to Interlaken?
A quick flight from Washington, D.C. to Interlaken can take about 10h 25m. Icelandair provides one of the quickest options available for as low as $552. There are 4101 mi between Washington, D.C. and Interlaken. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Washington, D.C. to Interlaken one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $468. British Airways flights start at $473 while deals on Icelandair start at $493 one-way.
What are the most popular routes from Washington, D.C. to Interlaken?
The most popular route from Washington, D.C. to Interlaken is Washington, D.C. Dulles Intl - Zurich. You may also consider Washington, D.C. Reagan-National - Zurich or Baltimore/Washington - Zurich.
What are the most reliable airlines from Washington, D.C. to Interlaken?
Before booking your flight to Interlaken from Washington, D.C., 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. to Interlaken?
On average you can expect to pay $1,297 for a flight from Washington, D.C. to Interlaken. The cheapest flight overall is $434 while the most popular route, (Washington, D.C. Dulles Intl - Zurich) is currently priced at $427.
Can I find deals for flights from Washington, D.C. to Interlaken that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Interlaken?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Interlaken.
Can I find deals for business class flights from Washington, D.C. to Interlaken?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Interlaken?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Interlaken (average of $637). Flying from Washington, D.C. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Interlaken

Dulles Intl to Zurich flights

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Reagan-National to Geneva flights

Dulles Intl to Basel flights

Reagan-National to Basel flights

Dulles Intl to Lugano flights

Reagan-National to Lugano flights

Dulles Intl to Bern flights

Top 10 airlines flying from Washington, D.C. to Interlaken

Airline	Cheapest	Average	Flexibility	On-time
Scandinavian Airlines	Cheapest$375	Average$569	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$382	Average$872	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$386	Average$793	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$490	Average$747	FlexibilityNo cancel fee	On-time71%
TAP AIR PORTUGAL	Cheapest$494	Average$861	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$503	Average$819	FlexibilityNo cancel fee	On-time70%
Turkish Airlines	Cheapest$530	Average$646	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$547	Average$1,002	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$555	Average$1,189	FlexibilityNo cancel fee	On-time69%
SWISS	Cheapest$621	Average$1,049	FlexibilityNo cancel fee	On-time79%

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$259+ Cheap flights from Washington, D.C. (WAS) 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.

Find cheap flights from Washington, D.C. to Interlaken with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Interlaken are usually found in November or January, booked 90 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap flight deals from Washington, D.C. to Interlaken

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Interlaken

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

Explore the most affordable flight options available from Washington, D.C. to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

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Best time to book a flight from Washington, D.C. to Interlaken

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

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

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

What is the cheapest time of day to fly from WAS to IN9?

Find hourly flight availability from Washington, D.C. 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.

What is the cheapest day to fly from Washington, D.C. to Interlaken?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Interlaken. Price data was last updated on September 8, 2024.

Weekly flight availability from Washington, D.C. to Interlaken

How much does it cost to fly round-trip from Washington, D.C. to Interlaken?

Reviews of airlines servicing Interlaken

See what other customers who have flown with SWISS, Scandinavian Airlines, and United Airlines from Washington, D.C. to Interlaken have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Interlaken?

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

What are the most popular routes from Washington, D.C. to Interlaken?

What are the most reliable airlines from Washington, D.C. to Interlaken?

What are the cheapest flights from Washington, D.C. to Interlaken?

Can I find deals for flights from Washington, D.C. to Interlaken that include hotel bookings?

How can I find direct flights from Washington, D.C. to Interlaken?

Can I find deals for business class flights from Washington, D.C. to Interlaken?

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

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Alternative routes for Washington, D.C. to Interlaken

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Top 10 airlines flying from Washington, D.C. to Interlaken

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