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Karlsruhe

$711+ Cheap flights from Dulles Intl (IAD) to Karlsruhe (FKB)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FKB
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Dulles Intl to Karlsruhe

Cheapest flights from Dulles Intl to Karlsruhe
Explore the most affordable flight options available from Dulles Intl to Karlsruhe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This Trip.com deal was found by Cheapflights users on 2/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:40 pm
IAD
-
FKB
2 stops20h 45m
Multiple Airlines
Sun 5/39:00 pm
FKB
-
IAD
2 stops48h 50m
Multiple Airlines
Deal found 2/4$711

Find flight deals from Dulles Intl to Karlsruhe

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Karlsruhe (FKB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$711
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$863
Provider with most accurate pricing for Washington, D.C. (WAS)-Frankfurt am Main flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Frankfurt am Main flights.
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From Washington, D.C. Dulles Intl to Karlsruhe Söllingen
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Karlsruhe 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 February 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Karlsruhe that are best for you.

Fly from

Dulles Intl

Fly to

Karlsruhe

Route

Depart

Return

Price

Washington, D.C.Karlsruhe

IAD - FKB

IADFKB

Washington, D.C. Dulles Intl

Wed 4/29

5:40 pm-8:25 pm

2 stops20h 45m

Karlsruhe Söllingen

Sun 5/3

9:00 pm-3:50 pm

2 stops48h 50m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Best time to book a flight from Dulles Intl to Karlsruhe

Have a flexible travel schedule? Discover the best time to fly to Karlsruhe 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 Karlsruhe

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Karlsruhe?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Karlsruhe (average of $472). Flying from Washington, D.C. Dulles Intl Airport to Karlsruhe in July is currently the most expensive (average of $655). 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Karlsruhe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Karlsruhe from Washington, D.C. Dulles Intl?

    Karlsruhe Söllingen (FKB) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Karlsruhe. You should not have trouble finding flights to Söllingen from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Karlsruhe airport from Washington, D.C. Dulles Intl. It is only a 21.7 mi journey from Söllingen (FKB) to Karlsruhe’s city center.

  • Can I find deals for flights from Dulles Intl to Karlsruhe that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Karlsruhe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Karlsruhe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Karlsruhe.

  • Can I find deals for business class flights from Dulles Intl to Karlsruhe?

    Yes. Cheapflights offers flight deals from Dulles Intl to Karlsruhe 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 Karlsruhe?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Karlsruhe (average of $472). Flying from Washington, D.C. Dulles Intl Airport to Karlsruhe in July is currently the most expensive (average of $655). 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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