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Interlaken

$258+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ZRH
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Interlaken are usually found in August or September, booked 65 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap 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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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 4/108:30 pm
BWI
-
ZRH
1 stop10h 35m
Icelandair
Sun 4/192:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/27$387
This oojo deal was found by Cheapflights users on 1/27. 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 3/188:40 pm
BWI
-
ZRH
1 stop10h 25m
Icelandair
Sun 3/292:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/27$388
This deal was found by Cheapflights users on 1/27. 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.
Fri 4/178:30 pm
BWI
-
ZRH
1 stop10h 35m
Icelandair
Sun 4/192:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/27$393
This oojo deal was found by Cheapflights users on 1/27. 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 4/228:30 pm
BWI
-
ZRH
1 stop10h 35m
Icelandair
Sat 5/92:00 pm
ZRH
-
BWI
1 stop14h 15m
Icelandair
Deal found 1/27$396
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Tue 4/711:20 pm
BWI
-
ZRH
1 stop31h 45m
Icelandair
Tue 4/142:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/26$418
This oojo deal was found by Cheapflights users on 1/26. 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 4/108:30 pm
BWI
-
ZRH
1 stop10h 35m
Icelandair
Thu 4/162:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/26$433
This oojo deal was found by Cheapflights users on 1/27. 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 5/28:30 pm
BWI
-
ZRH
1 stop10h 35m
Icelandair
Tue 5/122:00 pm
ZRH
-
BWI
1 stop14h 15m
Icelandair
Deal found 1/27$450
This Icelandair deal was found by Cheapflights users on 1/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:40 pm
BWI
-
ZRH
1 stop10h 25m
Icelandair
Thu 2/121:00 pm
ZRH
-
BWI
1 stop11h 40m
Icelandair
Deal found 1/27$461
This oojo deal was found by Cheapflights users on 1/26. 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.
Tue 5/1211:20 pm
BWI
-
ZRH
1 stop31h 45m
Icelandair
Mon 6/12:00 pm
ZRH
-
BWI
1 stop11h 25m
Icelandair
Deal found 1/26$505
This Scandinavian Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 2/238:30 pm
IAD
-
ZRH
1 stop17h 10m
Scandinavian Airlines
Thu 2/2610:25 am
ZRH
-
IAD
1 stop12h 50m
Scandinavian Airlines
Deal found 1/28$529
This oojo deal was found by Cheapflights users on 1/28. 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 10/38:20 pm
IAD
-
ZRH
2 stops33h 50m
Scandinavian Airlines
Sat 10/176:25 pm
ZRH
-
IAD
2 stops28h 25m
Scandinavian Airlines
Deal found 1/28$531
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 4/248:20 pm
IAD
-
ZRH
1 stop31h 20m
Scandinavian Airlines
Mon 5/410:25 am
ZRH
-
IAD
1 stop12h 25m
Scandinavian Airlines
Deal found 1/28$532

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$387
(oojo)

One-way from

$258
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$824
Provider with most accurate pricing for Washington, D.C. (WAS)-Zurich flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Zurich flights.
Search Deals
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. 12% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Interlaken that are best for you.

Fly from

Washington, D.C.

Fly to

Interlaken

Route

Depart

Return

Price

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Wed 3/18

8:40 pm-12:05 pm

1 stop10h 25m

Zurich

Sun 3/29

2:00 pm-7:25 pm

1 stop11h 25m

$388

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 2/23

8:30 pm-7:40 pm

1 stop17h 10m

Zurich

Thu 2/26

10:25 am-5:15 pm

1 stop12h 50m

$529

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Mon 4/6

8:20 pm-9:40 am

1 stop31h 20m

Zurich

Sun 4/12

12:55 pm-4:50 pm

2 stops33h 55m

$534

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Fri 3/13

2:30 pm-9:45 am

1 stop14h 15m

Zurich

Fri 3/20

6:10 pm-12:45 pm

1 stop23h 35m

$569

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Wed 4/29

8:20 pm-2:10 pm

1 stop11h 50m

Zurich

Sun 5/3

10:25 am-4:50 pm

1 stop12h 25m

$579

Washington, D.C.Zurich

IAD - ZRH

IADZRH

Washington, D.C. Dulles Intl

Tue 4/28

12:45 pm-12:10 pm

2 stops17h 25m

Zurich

Fri 5/8

10:25 am-4:50 pm

1 stop12h 25m

$606

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Sat 3/7

7:40 pm-12:05 pm

1 stop10h 25m

Zurich

Thu 3/12

1:00 pm-7:40 pm

1 stop11h 40m

$611

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Wed 5/20

6:05 am-12:10 pm

2 stops24h 05m

Zurich

Mon 5/25

9:35 pm-11:12 pm

2 stops31h 37m

$632

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Thu 2/26

11:06 am-9:40 am

2 stops16h 34m

Zurich

Wed 3/4

10:25 am-10:12 pm

2 stops17h 47m

$652

BaltimoreZurich

BWI - ZRH

BWIZRH

Baltimore/Washington

Mon 3/16

10:54 am-9:40 am

2 stops17h 46m

Zurich

Fri 3/20

10:25 am-12:53 am

2 stops19h 28m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 55 results
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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?

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 January 23, 2026.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Interlaken, you should look to book at least 65 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Interlaken (average of $375). Flying from Washington, D.C. 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 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 January 29, 2026.

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.

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

Explore weekly flight availability from Washington, D.C. 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 29, 2026.

The most flights from WAS to IN9 are scheduled on a Tuesday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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

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 29, 2026.
See what other customers who have flown with SWISS, United Airlines, and Aer Lingus 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
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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
7.6
Good
1,864 reviews
SWISS
7.6
Good
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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
9,215 reviews
SWISS
7.6
Good
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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
1,443 reviews
SWISS
7.6
Good
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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
606 reviews
SWISS
7.6
Good
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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.
TAP AIR PORTUGAL
7.1
Good
2,130 reviews
SWISS
7.6
Good
1,864 reviews

Comfort

7.4

Entertainment

6.8

Food

7.1

Boarding

7.7

Crew

8.3

Overall

7.6

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 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?

    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 $388. 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 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 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 Baltimore/Washington - Zurich or Washington, D.C. Reagan-National - 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 (82%), United Airlines (82%), SWISS( 82%).

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

    On average you can expect to pay $1,786 for a flight from Washington, D.C. to Interlaken. The cheapest flight overall is $404 while the most popular route, (Washington, D.C. Dulles Intl - Zurich) is currently priced at $424.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Interlaken (average of $375). Flying from Washington, D.C. 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

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

Discover the top 10 airlines that operate flights from Washington, D.C. 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$382Average$915FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$383Average$800FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$413Average$711FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$445Average$585FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$481Average$794FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$545Average$833FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$565Average$747FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$571Average$977FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$588Average$1,018FlexibilityNo cancel feeOn-time69%
SWISSCheapest$617Average$1,011FlexibilityNo cancel feeOn-time79%

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