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Cheap flights from London to Heidelberg from £40

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — FRA
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from London to Heidelberg are usually found in May or February, booked 81 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from London to Heidelberg

Keep the following information in mind while searching for London to Heidelberg flight deals. Data was last updated 11 July 2025.

Round-trip from

£108

One-way from

£40

Popular in

June

Cheapest in

May

Average price

£118
British Airways
  • British Airways
  • 8/10-22/10
  • Nonstop
  • 3h 25m total
  • London to Heidelberg
Search Deals
British Airways
  • British Airways
  • 17/9
  • Nonstop
  • 1h 40m total
  • London to Heidelberg
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to Heidelberg

Cheapest flights from London to Heidelberg
Explore the most affordable flight options available from London to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Wed 8/1017:10LHR - FRA
Nonstop1h 40mBritish Airways
Wed 22/1006:35FRA - LHR
Nonstop1h 45mBritish Airways
Deal found 9/7£108
Thu 14/818:30LHR - FRA
Nonstop1h 35mLufthansa
Tue 19/820:00FRA - LHR
Nonstop1h 40mLufthansa
Deal found 9/7£122
Wed 24/909:30LGW - FRA
1 stop8h 50measyJet
Thu 25/909:10FRA - LGW
1 stop6h 05measyJet
Deal found 10/7£123
Fri 10/1009:15LGW - FRA
1 stop9h 05mMultiple Airlines
Fri 24/1009:10FRA - LGW
1 stop11h 30mMultiple Airlines
Deal found 11/7£132
Wed 1/1008:45LCY - FRA
Nonstop1h 25mLufthansa
Mon 6/1018:10FRA - LCY
Nonstop1h 25mLufthansa
Deal found 10/7£132
Sun 31/808:30LHR - FRA
Nonstop1h 35mMultiple Airlines
Tue 9/914:50FRA - LHR
1 stop4h 00mMultiple Airlines
Deal found 9/7£138
Fri 29/820:20STN - FRA
1 stop11h 00mMultiple Airlines
Sun 7/920:40FRA - STN
1 stop12h 10mMultiple Airlines
Deal found 10/7£145
Wed 10/1209:50LCY - FRA
Nonstop1h 25mMultiple Airlines
Wed 7/114:45FRA - LCY
1 stop3h 20mMultiple Airlines
Deal found 10/7£148
Fri 29/821:05LTN - FRA
1 stop12h 10mMultiple Airlines
Mon 1/920:40FRA - LTN
1 stop13h 20mMultiple Airlines
Deal found 10/7£149
Sat 13/918:40LGW - FRA
1 stop12h 25mSWISS
Sat 20/914:50FRA - LGW
1 stop4h 00mSWISS
Deal found 10/7£159
Thu 4/916:55LCY - FRA
Nonstop1h 35mBritish Airways
Mon 8/918:05FRA - LCY
Nonstop1h 35mBritish Airways
Deal found 10/7£170
Thu 14/808:45LCY - FRA
Nonstop1h 25mAir Dolomiti
Thu 21/818:10FRA - LCY
Nonstop1h 25mAir Dolomiti
Deal found 11/7£182

Cheapflights Fare Finder

Customise your flight search to find flights from London to Heidelberg 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 11 July 2025.
Use the filters below to find and compare flights from London to Heidelberg that are best for you.

Fly from

London

Fly to

Heidelberg

Route

Depart

Return

Price

LondonFrankfurt am Main

LHR - FRA

LHRFRA

London Heathrow

Wed 8/10

17:10-19:50

Nonstop1h 40m

Frankfurt am Main

Wed 22/10

06:35-07:20

Nonstop1h 45m

£108

LondonFrankfurt am Main

LHR - FRA

LHRFRA

London Heathrow

Thu 14/8

19:30-22:05

Nonstop1h 35m

Frankfurt am Main

Sat 16/8

07:00-07:40

Nonstop1h 40m

£122

LondonFrankfurt am Main

LGW - FRA

LGWFRA

London Gatwick

Wed 24/9

09:30-19:20

1 stop8h 50m

Frankfurt am Main

Thu 25/9

09:10-14:15

1 stop6h 05m

£123

LondonFrankfurt am Main

LGW - FRA

LGWFRA

London Gatwick

Fri 10/10

09:15-19:20

1 stop9h 05m

Frankfurt am Main

Fri 24/10

09:10-19:40

1 stop11h 30m

£132

LondonFrankfurt am Main

LCY - FRA

LCYFRA

London City

Wed 1/10

08:45-11:10

Nonstop1h 25m

Frankfurt am Main

Mon 6/10

18:10-18:35

Nonstop1h 25m

£132

LondonFrankfurt am Main

LHR - FRA

LHRFRA

London Heathrow

Sun 31/8

08:30-11:05

Nonstop1h 35m

Frankfurt am Main

Tue 9/9

14:50-17:50

1 stop4h 00m

£138

LondonFrankfurt am Main

STN - FRA

STNFRA

London Stansted

Fri 29/8

20:20-08:20

1 stop11h 00m

Frankfurt am Main

Sun 7/9

20:40-07:50

1 stop12h 10m

£145

LondonFrankfurt am Main

LCY - FRA

LCYFRA

London City

Wed 10/12

09:50-12:15

Nonstop1h 25m

Frankfurt am Main

Wed 7/1

14:45-17:05

1 stop3h 20m

£148

LondonFrankfurt am Main

LTN - FRA

LTNFRA

London Luton

Fri 29/8

21:05-10:15

1 stop12h 10m

Frankfurt am Main

Mon 1/9

20:40-09:00

1 stop13h 20m

£149

LondonFrankfurt am Main

LGW - FRA

LGWFRA

London Gatwick

Sat 13/9

18:40-08:05

1 stop12h 25m

Frankfurt am Main

Sat 20/9

14:50-17:50

1 stop4h 00m

£159

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from London to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from London 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.

Cheapflights Insights

Everything you need to know about your flight from London to Heidelberg

How far ahead should I book a flight from London to Heidelberg?

Use this chart to determine the optimal time to book a return flight from London to Heidelberg. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from London to Heidelberg, you should look to book at least 76 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 London to Heidelberg?

Currently, February is the cheapest month in which you can book a flight from London to Heidelberg (average of £187). Flying from London to Heidelberg in July is currently the most expensive (average of £255). 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 LON to HE1?

Find hourly flight availability from London to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Heidelberg as you normally would.

What is the cheapest day to fly from London to Heidelberg?

Use this chart to determine the cheapest time to fly return from London to Heidelberg. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Heidelberg flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Heidelberg

Explore weekly flight availability from London to Heidelberg. 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 11 July 2025.

The most flights from LON to HE1 are scheduled on a Thursday (50 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (26 on average).

How much does it cost for a return flight from London to Heidelberg?

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. 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 Heidelberg. Reviews last updated 11 July 2025.
Check out reviews from past customers who have flown with Aegean Airlines, KLM, andSWISS from London to Heidelberg to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.2
Very Good
763 reviews
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,372 reviews
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,655 reviews
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Brussels Airlines
7.3
Good
349 reviews
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
easyJet
6.9
Okay
1,817 reviews
Aegean Airlines
8.2
Very Good
763 reviews
Check prices

Crew

8.6

Food

7.4

Comfort

7.8

Boarding

7.8

Entertainment

6.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from London to Heidelberg. 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 London to Heidelberg one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £40. easyJet flights start at £54 while deals on Air Serbia start at £67 one-way.

  • What are the most popular routes from London to Heidelberg?

    The most popular route from London to Heidelberg is London Gatwick - Frankfurt am Main. You may also consider London Luton - Frankfurt am Main or London Heathrow - Frankfurt am Main.

  • What are the most reliable airlines from London to Heidelberg?

    No one likes to see their flight delayed. When booking a flight from London to Heidelberg consider choosing Aegean Airlines (85%), British Airways (82%) or United Airlines (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Heidelberg?

    On average you can expect to pay £2,120 for a flight from London to Heidelberg. The cheapest flight overall is £85 while the most popular route, (London Gatwick - Frankfurt am Main) is currently priced at £123.

  • Can I find deals for flights from London to Heidelberg that include hotel bookings?

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

  • How can I find direct flights from London to Heidelberg?

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

  • Can I find deals for business class flights from London to Heidelberg?

    Yes. Cheapflights offers flight deals from London to Heidelberg 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 London to Heidelberg?

    Currently, February is the cheapest month in which you can book a flight from London to Heidelberg (average of £187). Flying from London to Heidelberg in July is currently the most expensive (average of £255). 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 9 airlines flying from London to Heidelberg

Discover the top 9 airlines that operate flights from London to Heidelberg. 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 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£25Average£60FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
LufthansaCheapest£83Average£189FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£93Average£156FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EurowingsCheapest£95Average£157FlexibilityNo cancel feeOn-time87%
Search Eurowings flights
FinnairCheapest£106Average£179FlexibilityNo cancel feeOn-time76%
Search Finnair flights
VuelingCheapest£133Average£277FlexibilityNo cancel feeOn-time88%
Search Vueling flights
Air DolomitiCheapest£140Average£168FlexibilityNo cancel feeOn-time87%
Search Air Dolomiti flights
SWISSCheapest£140Average£212FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£150Average£238FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Heidelberg?

Cheapflights makes it easy to find London to Heidelberg flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Heidelberg?

Cheapflights helps you find that perfect flight to Heidelberg from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Heidelberg with no change fees?

Need flexible booking options for your flight to Heidelberg from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Heidelberg become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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