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Cheap flights from London Heathrow Airport to Karlsruhe from £104

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — FKB
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Karlsruhe

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Karlsruhe
Explore the most affordable flight options available from Heathrow to Karlsruhe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2026.

Fri 4/1213:20
LHR
-
FKB
2 stops25h 25m
Multiple Airlines
Mon 7/1209:15
FKB
-
LHR
1 stop11h 40m
Multiple Airlines
Deal found 3/7£258
Mon 6/720:50
LHR
-
FKB
2 stops19h 40m
Multiple Airlines
Mon 13/707:35
FKB
-
LHR
1 stop7h 50m
Multiple Airlines
Deal found 1/7£263
Tue 7/720:50
LHR
-
FKB
2 stops12h 45m
Multiple Airlines
Mon 13/707:35
FKB
-
LHR
1 stop7h 50m
Multiple Airlines
Deal found 1/7£266
Fri 18/916:30
LHR
-
FKB
2 stops26h 55m
Multiple Airlines
Sun 20/921:00
FKB
-
LHR
2 stops13h 40m
Multiple Airlines
Deal found 2/7£273
Wed 12/806:00
LHR
-
FKB
2 stops15h 45m
Multiple Airlines
Sun 16/821:10
FKB
-
LHR
2 stops20h 15m
Multiple Airlines
Deal found 3/7£282
Mon 6/721:05
LHR
-
FKB
1 stop10h 00m
Multiple Airlines
Tue 14/721:15
FKB
-
LHR
2 stops18h 30m
Multiple Airlines
Deal found 1/7£283
Tue 28/720:50
LHR
-
FKB
2 stops19h 05m
Multiple Airlines
Fri 7/816:05
FKB
-
LHR
2 stops18h 05m
Multiple Airlines
Deal found 29/6£291
Thu 13/806:30
LHR
-
FKB
2 stops13h 45m
Multiple Airlines
Thu 20/813:30
FKB
-
LHR
2 stops9h 00m
Multiple Airlines
Deal found 29/6£292
Wed 22/709:55
LHR
-
FKB
2 stops11h 50m
Multiple Airlines
Tue 28/710:55
FKB
-
LHR
2 stops10h 10m
Multiple Airlines
Deal found 28/6£296
Thu 9/710:50
LHR
-
FKB
2 stops11h 05m
Multiple Airlines
Mon 13/707:35
FKB
-
LHR
1 stop7h 50m
Multiple Airlines
Deal found 28/6£304

Find flight deals from Heathrow to Karlsruhe

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 3 July 2026.

Round-trip from

£258

One-way from

£104

Popular in

May

Cheapest in

September

Average price

£134
4/12-7/12
  • 4/12-7/12
  • 3 total stops
  • 37h 05m total
  • London to Karlsruhe
Search Deals
21/9
  • 21/9
  • 1 total stop
  • 25h 15m total
  • London to Karlsruhe
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 3 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Karlsruhe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Fri 4/12

13:20-15:45

2 stops25h 25m

Karlsruhe Söllingen

Mon 7/12

09:15-20:50

2 stops12h 35m

£275

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Tue 28/7

20:50-16:55

2 stops19h 05m

Karlsruhe Söllingen

Fri 7/8

16:05-09:10

2 stops18h 05m

£291
Fastest return journey

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Wed 22/7

09:55-22:45

2 stops11h 50m

Karlsruhe Söllingen

Tue 28/7

10:55-20:05

2 stops10h 10m

£296

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Thu 6/8

18:40-17:15

2 stops21h 35m

Karlsruhe Söllingen

Sun 9/8

15:20-08:15

2 stops17h 55m

£362

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Sun 16/8

19:25-07:50

1 stop11h 25m

Karlsruhe Söllingen

Tue 8/9

17:50-08:25

2 stops15h 35m

£435

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Sat 25/7

13:55-21:20

1 stop6h 25m

Karlsruhe Söllingen

Fri 31/7

18:15-09:10

2 stops15h 55m

£450

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Sat 29/8

20:05-16:35

2 stops19h 30m

Karlsruhe Söllingen

Mon 31/8

17:25-08:15

2 stops15h 50m

£472

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Sat 1/8

06:40-21:20

1 stop13h 40m

Karlsruhe Söllingen

Tue 4/8

08:30-17:00

1 stop9h 30m

£480

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Thu 6/8

20:05-09:35

2 stops36h 30m

Karlsruhe Söllingen

Wed 26/8

11:10-21:45

2 stops11h 35m

£486

LondonKarlsruhe

LHR - FKB

LHRFKB

London Heathrow

Fri 31/7

20:05-19:25

2 stops22h 20m

Karlsruhe Söllingen

Thu 13/8

21:00-09:40

2 stops13h 40m

£501

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Karlsruhe

Have a flexible travel schedule? Discover the best time to fly to Karlsruhe from Heathrow with our price prediction graph.
Estimated return 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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 London Heathrow?

    Most people fly into Karlsruhe Söllingen (FKB) if they book a flight to Karlsruhe from London Heathrow. On average, Söllingen has 0 inbound flights from London Heathrow per day from 0 airlines. Karlsruhe Söllingen is conveniently located just 21.7 mi from Karlsruhe’s city center.

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

    Yes. In addition to deals on Heathrow to Karlsruhe flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Karlsruhe?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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.

See more FAQs

Travelling to a place near Karlsruhe?

Book flights to Karlsruhe if you plan to visit one of these locations
Freiburg im Breisgau

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How does Cheapflights help users find flights from Heathrow to Karlsruhe?

When you search for this flight from Heathrow to Karlsruhe, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Karlsruhe?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Karlsruhe by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Karlsruhe with no change fees?

Certainly. Search results for flights to Karlsruhe from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Karlsruhe become cheaper?

Of course! You can now track prices for flights from Heathrow to Karlsruhe and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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