What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Interlaken?

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

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).

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

Users have found that booking a flight from Washington, D.C. Reagan-National Airport to Interlaken at least 13 days early can save you up to 15% on average compared to booking a flight this week. If booking 13 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Reagan-National Airport to Interlaken for as little as $628 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,089 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Interlaken. Flights to Interlaken from Washington, D.C. Reagan-National Airport in November are about $876 on average during November, but can be found for as low as $380.

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.

$380+ Flights from Washington, D.C. Reagan-National Airport to Interlaken

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Cheap flight deals from Reagan-National to Interlaken

Round-trip from	$603 (American Airlines)
One-way from	$380 (Condor)
Popular in	November
Cheapest in	March
Average price	$989

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. 21% potential increase in price ($286 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($61 potential savings vs. average RT price).

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Average for round-trip flights in August 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 August 14, 2025.

Tue 11/254:50 pmDCA - ZRH

1 stop9h 25mAmerican Airlines

Fri 12/510:15 amZRH - DCA

1 stop15h 40mAmerican Airlines

Deal found 8/13

$603

Sat 8/236:05 amDCA - ZRH

2 stops25h 50mScandinavian Airlines

Thu 9/410:20 amZRH - DCA

2 stops15h 36mScandinavian Airlines

Deal found 8/13

$630

Wed 9/36:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Thu 9/118:25 pmZRH - DCA

2 stops31h 46mScandinavian Airlines

Deal found 8/14

$644

Thu 10/301:15 pmDCA - ZRH

2 stops15h 25mScandinavian Airlines

Tue 11/410:25 amZRH - DCA

2 stops17h 42mScandinavian Airlines

Deal found 8/14

$648

Thu 10/3012:28 pmDCA - ZRH

1 stop14h 47mAmerican Airlines

Tue 11/410:15 amZRH - DCA

1 stop11h 56mAmerican Airlines

Deal found 8/13

$653

Thu 11/64:50 pmDCA - ZRH

1 stop9h 25mAmerican Airlines

Fri 11/1410:15 amZRH - DCA

2 stops17h 10mAmerican Airlines

Deal found 8/13

$658

Tue 9/21:55 pmDCA - ZRH

2 stops13h 45mScandinavian Airlines

Fri 9/1210:20 amZRH - DCA

2 stops19h 21mScandinavian Airlines

Deal found 8/14

$660

Wed 10/224:38 pmDCA - ZRH

1 stop10h 12mAmerican Airlines

Sun 11/2310:15 amZRH - DCA

1 stop16h 43mAmerican Airlines

Deal found 8/13

$662

Wed 10/16:00 amDCA - ZRH

1 stop20h 50mAmerican Airlines

Wed 10/811:45 amZRH - DCA

1 stop14h 14mAmerican Airlines

Deal found 8/13

$663

Best flights from Reagan-National to Interlaken
Discover carefully curated flight deals from Reagan-National to Interlaken that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Tue 11/254:50 pmDCA - ZRH

1 stop9h 25mAmerican Airlines

Fri 12/510:15 amZRH - DCA

1 stop15h 40mAmerican Airlines

Deal found 8/13

$603

Mon 10/66:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Thu 10/910:20 amZRH - DCA

2 stops18h 44mScandinavian Airlines

Deal found 8/13

$644

Sun 2/111:45 amDCA - ZRH

1 stop14h 30mAmerican Airlines

Tue 3/3111:45 amZRH - DCA

1 stop14h 15mAmerican Airlines

Deal found 8/13

$612

Wed 9/36:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Thu 9/118:25 pmZRH - DCA

2 stops33h 16mScandinavian Airlines

Deal found 8/13

$644

Sun 10/196:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Fri 10/2410:20 amZRH - DCA

2 stops18h 44mScandinavian Airlines

Deal found 8/13

$644

Last-minute flights from Reagan-National to Interlaken
Discover last-minute flight deals from Reagan-National to Interlaken. Data last updated August 14, 2025 and is based on user searches.

Thu 8/216:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Thu 10/210:20 amZRH - DCA

2 stops19h 21mScandinavian Airlines

Deal found 8/14

$714

Thu 8/216:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Sat 10/46:00 pmZRH - DCA

2 stops35h 41mScandinavian Airlines

Deal found 8/14

$768

Thu 8/216:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Fri 8/2910:20 amZRH - DCA

2 stops17h 52mScandinavian Airlines

Deal found 8/14

$784

Thu 8/216:10 amDCA - ZRH

1 stop20h 40mAmerican Airlines

Tue 8/2611:45 amZRH - DCA

1 stop14h 14mAmerican Airlines

Deal found 8/14

$828

Thu 8/218:50 amDCA - ZRH

2 stops16h 15mMultiple Airlines

Tue 8/268:00 amZRH - DCA

2 stops16h 05mMultiple Airlines

Deal found 8/14

$830

Fri 8/226:05 amDCA - ZRH

2 stops29h 15mScandinavian Airlines

Fri 9/510:20 amZRH - DCA

2 stops15h 36mScandinavian Airlines

Deal found 8/14

$827

Sat 8/236:05 amDCA - ZRH

2 stops25h 50mScandinavian Airlines

Thu 9/410:20 amZRH - DCA

2 stops15h 36mScandinavian Airlines

Deal found 8/13

$630

Sun 8/246:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Thu 10/210:20 amZRH - DCA

2 stops19h 21mScandinavian Airlines

Deal found 8/14

$674

Sun 8/246:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Fri 10/310:20 amZRH - DCA

2 stops19h 21mScandinavian Airlines

Deal found 8/14

$704

Sun 8/246:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Sun 9/282:35 pmZRH - DCA

2 stops39h 06mScandinavian Airlines

Deal found 8/14

$728

Sun 8/246:05 amDCA - ZRH

2 stops25h 15mScandinavian Airlines

Fri 8/2910:20 amZRH - DCA

2 stops17h 52mScandinavian Airlines

Deal found 8/14

$744

Tue 9/21:55 pmDCA - ZRH

2 stops13h 45mScandinavian Airlines

Fri 9/1210:20 amZRH - DCA

2 stops19h 21mScandinavian Airlines

Deal found 8/14

$660

One-way flights from Reagan-National to Interlaken
Search for one-way flight options from Reagan-National to Interlaken. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Tue 8/2610:30 amDCA - ZRH

2 stops14h 35mMultiple Airlines

Deal found 8/14

$380

Sat 9/1310:30 amDCA - ZRH

2 stops14h 35mMultiple Airlines

Deal found 8/14

$433

Mon 9/1510:00 amDCA - ZRH

2 stops15h 05mMultiple Airlines

Deal found 8/14

$440

Thu 8/2811:45 amDCA - ZRH

2 stops21h 50mMultiple Airlines

Deal found 8/13

$443

Tue 10/712:59 pmDCA - ZRH

2 stops13h 51mAmerican Airlines

Deal found 8/13

$469

Sun 8/2410:30 amDCA - ZRH

2 stops14h 35mMultiple Airlines

Deal found 8/14

$480

Sun 9/147:23 pmDCA - ZRH

2 stops16h 57mFinnair

Deal found 8/14

$486

Mon 8/256:05 amDCA - ZRH

2 stops30h 10mITA Airways

Deal found 8/14

$495

Sat 12/64:45 pmDCA - ZRH

1 stop9h 30mAmerican Airlines

Deal found 8/13

$519

Sat 9/136:00 amDCA - ZRH

1 stop20h 50mAmerican Airlines

Deal found 8/14

$521

Sat 10/115:00 pmDCA - ZRH

2 stops14h 55mDelta

Deal found 8/13

$538

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Tue 11/25

4:50 pm-8:15 am

1 stop9h 25m

Zurich

Fri 12/5

10:15 am-7:55 pm

1 stop15h 40m

$603

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Sun 2/1

11:45 am-8:15 am

1 stop14h 30m

Zurich

Tue 3/31

11:45 am-8:00 pm

1 stop14h 15m

$612

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Mon 10/6

6:05 am-1:20 pm

2 stops25h 15m

Zurich

Thu 10/9

10:20 am-11:04 pm

2 stops18h 44m

$644

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Wed 9/3

6:05 am-1:20 pm

2 stops25h 15m

Zurich

Thu 9/11

8:25 pm-11:41 pm

2 stops33h 16m

$644

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Sun 10/19

6:05 am-1:20 pm

2 stops25h 15m

Zurich

Fri 10/24

10:20 am-11:04 pm

2 stops18h 44m

$644

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Tue 8/26

10:30 am-7:05 am

2 stops14h 35m

$380

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Sat 9/13

10:30 am-7:05 am

2 stops14h 35m

$433

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Mon 9/15

10:00 am-7:05 am

2 stops15h 05m

$440

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Thu 8/28

11:45 am-3:35 pm

2 stops21h 50m

$443

Washington, D.C.Zurich

DCA - ZRH

DCAZRH

Washington, D.C. Reagan-National

Tue 10/7

12:54 pm-8:50 am

1 stop13h 56m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 14 results

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 $1,151). 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 DCA 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. Reagan-National Airport to Interlaken as you normally would.

Related info for your journey

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 $1,151). 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.

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$380+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.

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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 August 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Interlaken

Cheapest flights from Reagan-National to InterlakenExplore 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 August 14, 2025.

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 August 14, 2025.

Cheapflights Fare Finder

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

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.

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?

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 August 14, 2025.

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.

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

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

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

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

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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 August 14, 2025.