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Interlaken

$398+ Cheap flights from Reagan-National (DCA) 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ZRH
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
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Cheap flight deals from Reagan-National to Interlaken

Keep the following information in mind while searching for Reagan-National to Interlaken flight deals. Data was last updated June 23, 2025.

Round-trip from

$588
(Air Canada)

One-way from

$400
(oojo)

Popular in

November

Cheapest in

March

Average price

$1,368
From Washington, D.C. Reagan-National to Interlaken
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One-way flight from Washington, D.C. Reagan-National to Interlaken
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Highest demand for flights based on searches. 25% potential increase in price ($385 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Reagan-National to Interlaken

Cheapest flights from Reagan-National to Interlaken
Explore the most affordable flight options available from Reagan-National to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2025.

This oojo deal was found by Cheapflights users on 6/21. 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.
Mon 10/66:05 amDCA - ZRH
2 stops26h 05mScandinavian Airlines
Tue 10/142:00 pmZRH - DCA
2 stops38h 19mScandinavian Airlines
Deal found 6/21$587
This Air Canada deal was found by Cheapflights users on 6/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/411:00 amDCA - ZRH
1 stop13h 15mAir Canada
Wed 11/1212:45 pmZRH - DCA
1 stop27h 34mAir Canada
Deal found 6/21$588
This Delta deal was found by Cheapflights users on 6/22. 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.
Mon 8/116:00 amDCA - ZRH
1 stop20h 05mDelta
Wed 8/2010:10 amZRH - DCA
1 stop15h 25mDelta
Deal found 6/22$596
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Wed 8/132:00 pmDCA - ZRH
1 stop14h 50mUnited Airlines
Thu 8/219:55 amZRH - DCA
1 stop18h 32mUnited Airlines
Deal found 6/23$599
This American Airlines deal was found by Cheapflights users on 6/21. 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.
Mon 9/112:55 pmDCA - ZRH
2 stops13h 55mAmerican Airlines
Tue 9/911:45 amZRH - DCA
2 stops15h 34mAmerican Airlines
Deal found 6/21$637
This Expedia deal was found by Cheapflights users on 6/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:06 pmDCA - ZRH
2 stops13h 24mBritish Airways
Tue 8/128:45 pmZRH - DCA
2 stops25h 10mBritish Airways
Deal found 6/21$665
This Iberia deal was found by Cheapflights users on 6/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/133:35 pmDCA - ZRH
2 stops37h 30mIberia
Wed 9/247:30 amZRH - DCA
2 stops21h 37mIberia
Deal found 6/21$669
This Finnair deal was found by Cheapflights users on 6/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:23 pmDCA - ZRH
2 stops21h 22mMultiple Airlines
Wed 10/810:50 amZRH - DCA
2 stops18h 05mMultiple Airlines
Deal found 6/21$675
This ITA Airways deal was found by Cheapflights users on 6/23. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:00 amDCA - ZRH
2 stops17h 05mITA Airways
Tue 8/267:05 pmZRH - DCA
2 stops29h 09mITA Airways
Deal found 6/23$762
This oojo deal was found by Cheapflights users on 6/22. 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 10/84:39 pmDCA - ZRH
2 stops14h 26mIcelandair
Wed 10/222:00 pmZRH - DCA
2 stops24h 09mIcelandair
Deal found 6/22$827

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National 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 June 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Interlaken that are best for you.

Fly from

Reagan-National

Fly to

Interlaken

Route

Depart

Return

Price

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Mon 10/6

6:05 am-2:10 pm

2 stops26h 05m

Zurich

Tue 10/14

2:00 pm-10:19 pm

2 stops38h 19m

$587

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Tue 11/4

11:00 am-6:15 am

1 stop13h 15m

Zurich

Wed 11/12

12:45 pm-10:19 am

1 stop27h 34m

$588

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Mon 8/11

6:00 am-8:05 am

1 stop20h 05m

Zurich

Wed 8/20

10:10 am-7:35 pm

1 stop15h 25m

$596

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Wed 8/13

2:00 pm-10:50 am

1 stop14h 50m

Zurich

Thu 8/21

9:55 am-10:27 pm

1 stop18h 32m

$599

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Mon 9/1

6:10 am-8:50 am

1 stop20h 40m

Zurich

Tue 9/9

11:45 am-8:54 pm

2 stops15h 09m

$637

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Tue 8/5

7:06 pm-2:30 pm

2 stops13h 24m

Zurich

Tue 8/12

8:45 pm-3:55 pm

2 stops25h 10m

$665

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Sat 9/13

3:35 pm-11:05 am

2 stops37h 30m

Zurich

Wed 9/24

7:30 am-11:07 pm

2 stops21h 37m

$669

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Wed 10/1

7:23 pm-10:45 pm

2 stops21h 22m

Zurich

Wed 10/8

10:50 am-10:55 pm

2 stops18h 05m

$675

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Thu 8/14

11:00 am-10:05 am

2 stops17h 05m

Zurich

Tue 8/26

7:05 pm-6:14 pm

2 stops29h 09m

$762

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Wed 10/8

4:39 pm-1:05 pm

2 stops14h 26m

Zurich

Wed 10/22

2:00 pm-8:09 am

2 stops24h 09m

$827

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 19 results
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Best time to book a flight from Reagan-National to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Reagan-National 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. Reagan-National Airport to Interlaken

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Interlaken (average of $637). Flying from Washington, D.C. Reagan-National Airport to Interlaken in June is currently the most expensive (average of $1,162). 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 DCA to IN9?

Find hourly flight availability from Reagan-National 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 June 23, 2025.

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

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 June 23, 2025.
See what other customers who have flown with Delta, LOT and United Airlines from Washington, D.C. to Interlaken have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,965 reviews
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,082 reviews
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,831 reviews
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,404 reviews
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,965 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National Airport to Interlaken one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Interlaken are Scandinavian Airlines ($400), Air Canada ($448), and American Airlines ($468).

  • Can I find deals for flights from Reagan-National to Interlaken that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Interlaken?

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

  • Can I find deals for business class flights from Reagan-National to Interlaken?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Interlaken (average of $637). Flying from Washington, D.C. Reagan-National Airport to Interlaken in June is currently the most expensive (average of $1,162). 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.

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