Question 1

What are the cheapest airlines to fly from London Heathrow Airport to Heidelberg one-way?

Accepted Answer

£40 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Air Serbia and Lufthansa, with prices starting from £67 and £68, respectively.

Question 2

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

Accepted Answer

The price you pay for your flight from London Heathrow Airport to Heidelberg may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 3

What is the cheapest month to book a flight from London Heathrow Airport to Heidelberg?

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Heidelberg (average of £187). Flying from London Heathrow Airport 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.

Question 4

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

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport 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.

Question 5

Weekly flight availability from London Heathrow Airport to Heidelberg

Accepted Answer

The most flights from LHR to HE1 are scheduled on a Thursday (44 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (26 on average).

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Heidelberg ranges from 40.0 - 70.0 inches per month. June is typically the wettest month, when rainfall can reach 70.0 mm. January is typically the driest time to visit Heidelberg when rainfall is around 40.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Heidelberg, 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 18.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

Question 8

What are the cheapest flights from London Heathrow Airport to Heidelberg?

Accepted Answer

While on average a flight from London Heathrow Airport to Heidelberg is generally £2,120, our data shows the cheapest flight currently is £85. When looking at the most popular route, (London Heathrow - Frankfurt am Main), you can expect to pay £108 for that flight.

Question 9

What are the most reliable airlines from London Heathrow Airport to Heidelberg?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from London Heathrow Airport 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.

Question 10

What are the most popular airlines that fly from London Heathrow Airport to Heidelberg?

Accepted Answer

Finnair, British Airways and KLM are the most popular airlines when flying from London Heathrow Airport to Heidelberg.

Question 11

How far in advance should I book a flight from London Heathrow Airport to Heidelberg?

Accepted Answer

Travelers have found it’s best to book a flight 59 days in advance to save up to 211% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Heidelberg 1-2 weeks in advance for as low as £134, or £204 for flights within the next 24 hours.

Question 12

What is the cheapest month to fly from London Heathrow Airport to Heidelberg?

Accepted Answer

Flights from London Heathrow Airport to Heidelberg lean towards being more expensive in June. Prices are generally better when you fly from London Heathrow Airport to Heidelberg in May, with the cheapest ticket starting at £27.

Question 13

What is the cheapest time of day to fly from LHR to HE1?

Accepted Answer

When flying from London Heathrow Airport to Heidelberg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 14

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

Accepted Answer

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

Question 15

How can I find direct flights from Heathrow to Heidelberg?

Accepted Answer

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

Question 16

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

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow 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.

Question 17

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

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Heidelberg. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 18

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

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Heidelberg.

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

Of course! You can now track prices for flights from Heathrow to Heidelberg 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.

Round-trip from	£108
One-way from	£40
Popular in	April
Cheapest in	March
Average price	£166

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£93	Average£142	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Eurowings	Cheapest£95	Average£157	FlexibilityNo cancel fee	On-time87%	Search Eurowings flights
Finnair	Cheapest£106	Average£179	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£121	Average£193	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
SWISS	Cheapest£140	Average£212	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
KLM	Cheapest£150	Average£238	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Cheap flights from London Heathrow Airport 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.

Cheapflights Tip: The best prices from London Heathrow to Heidelberg are usually found in March or January, booked 88 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from Heathrow to Heidelberg

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Heidelberg

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

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

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Heidelberg that are best for you.

Best time to book a flight from Heathrow to Heidelberg

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

Cheapflights Insights

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

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

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

What is the cheapest month to book a flight from London Heathrow Airport to Heidelberg?

What is the cheapest time of day to fly from LHR to HE1?

Find hourly flight availability from Heathrow 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 juillet 2025.

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

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

Weekly flight availability from London Heathrow Airport to Heidelberg

Explore weekly flight availability from Heathrow 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 juillet 2025.

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

Reviews of airlines servicing Heidelberg

Read through reviews of airlines operating flights from London Heathrow Airport to Heidelberg, such as Aegean Airlines, Brussels Airlines, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow Airport to Heidelberg one-way?

What are the most reliable airlines from London Heathrow Airport to Heidelberg?

What are the cheapest flights from London Heathrow Airport to Heidelberg?

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

How can I find direct flights from Heathrow to Heidelberg?

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

What is the cheapest month to book a flight from London Heathrow Airport to Heidelberg?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Heathrow to Heidelberg

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

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

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

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

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