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.

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).

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

When flying from Cardiff 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.

What airport do you fly from for flights from Cardiff to Heidelberg?

Most people fly from Cardiff Wales (CWL) if they book a flight from Cardiff to Heidelberg. On average, Cardiff Wales has 0 outbound flights to Heidelberg per day from 0 airlines. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.

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

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

How can I find direct flights from Cardiff to Heidelberg?

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

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

Yes. Cheapflights offers flight deals from Cardiff 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.

£88+ Cheap Flights from Cardiff to Heidelberg

Cheap flight deals from Cardiff to Heidelberg

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Cardiff to Heidelberg
Explore the most affordable flight options available from Cardiff to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Mon 19/1022:10 -

1 stop11h 05m

Mon 26/1020:00 -

1 stop26h 50m

Deal found 3/9£152

Wed 14/1023:50 -

1 stop9h 25m

Wed 21/1010:55 -

1 stop13h 30m

Deal found 3/9£156

Fri 16/1022:45 -

1 stop10h 30m

Fri 23/1020:40 -

1 stop11h 15m

Deal found 1/9£162

Mon 14/922:10 -

1 stop11h 05m

Thu 17/907:00 -

1 stop16h 25m

Deal found 1/9£190

Tue 15/923:15 -

1 stop10h 00m

Fri 18/920:40 -

1 stop11h 15m

Deal found 1/9£206

Find flight deals from Cardiff to Heidelberg

Round-trip from	£152
One-way from	£88

19/10-26/10
2 total stops
37h 55m total
Cardiff to Heidelberg

Search Deals

27/9-31/12
1 total stop
11h 30m total
Cardiff to Heidelberg

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sun 27/9

09:35-09:45

2 stops23h 10m

Frankfurt am Main

Wed 31/12

00:00-00:00

Nonstop0h 00m

£147

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Wed 14/10

23:50-10:15

1 stop9h 25m

Frankfurt am Main

Wed 21/10

10:55-23:25

1 stop13h 30m

£156

Fastest return journey

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sat 10/10

17:35-22:00

1 stop3h 25m

Frankfurt am Main

Wed 31/12

00:00-00:00

Nonstop0h 00m

£174

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Wed 7/10

17:15-09:35

1 stop15h 20m

Frankfurt am Main

Wed 31/12

00:00-00:00

Nonstop0h 00m

£178

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sat 3/10

07:30-08:20

2 stops23h 50m

Frankfurt am Main

Sat 10/10

14:15-17:05

1 stop3h 50m

£237

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sat 3/10

17:35-22:00

1 stop3h 25m

Frankfurt am Main

Sat 10/10

14:15-17:05

1 stop3h 50m

£240

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sat 3/10

17:35-09:00

2 stops38h 25m

Frankfurt am Main

Sat 10/10

07:05-17:05

2 stops11h 00m

£250

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Fri 9/10

17:15-09:35

1 stop15h 20m

Frankfurt am Main

Mon 12/10

14:15-09:15

1 stop20h 00m

£255

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Fri 23/10

15:35-08:10

2 stops15h 35m

Frankfurt am Main

Sun 25/10

18:55-08:10

2 stops14h 15m

£257

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Fri 2/10

17:15-22:00

1 stop3h 45m

Frankfurt am Main

Mon 5/10

18:40-09:15

1 stop15h 35m

£259

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Sorted by cheapest first

Best time to book a flight from Cardiff to Heidelberg

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

CWL-FRA

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 Cardiff to Heidelberg

CWL-HE1

CWL-FRA

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heidelberg

Check out reviews from past customers who have flown with KLM from Cardiff to Heidelberg to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,569 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

KLM

7.8

Good

1,569 reviews

KLM

7.8

Good

1,569 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

What airport do you fly from for flights from Cardiff to Heidelberg?
Most people fly from Cardiff Wales (CWL) if they book a flight from Cardiff to Heidelberg. On average, Cardiff Wales has 0 outbound flights to Heidelberg per day from 0 airlines. Cardiff Wales is conveniently located just 9.1 mi from Cardiff’s city center.
Can I find deals for flights from Cardiff to Heidelberg that include hotel bookings?
Yes. In addition to deals on Cardiff to Heidelberg flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to Heidelberg?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Heidelberg.
Can I find deals for business class flights from Cardiff to Heidelberg?
Yes. Cheapflights offers flight deals from Cardiff 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.

See more FAQs

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Cheap flights from Cardiff to Heidelberg from £88

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to Heidelberg

Cheapest flights from Cardiff to HeidelbergExplore the most affordable flight options available from Cardiff to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Explore the most affordable flight options available from Cardiff to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Cardiff to HeidelbergDiscover carefully curated flight deals from Cardiff to Heidelberg that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals from Cardiff to Heidelberg that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Cardiff to HeidelbergDiscover last-minute flight deals from Cardiff to Heidelberg. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to Heidelberg. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Cardiff to HeidelbergSearch for one-way flight options from Cardiff to Heidelberg. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options from Cardiff to Heidelberg. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

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Best time to book a flight from Cardiff to Heidelberg

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

Cheapflights Insights

Reviews of airlines servicing Heidelberg

Check out reviews from past customers who have flown with KLM from Cardiff to Heidelberg to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Cardiff to Heidelberg?

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

How can I find direct flights from Cardiff to Heidelberg?

Can I find deals for business class flights from Cardiff 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 Cardiff to Heidelberg

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

Complete your trip

Complete your trip to Heidelberg by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Baden-Wurttemberg

Book a non-stop flight to one of these other cities located in Baden-Wurttemberg.

Search flights from Cardiff to Heidelberg by cabin class

Find flights from Cardiff to Heidelberg, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Cardiff and Heidelberg flights

Browse other Cardiff and Heidelberg flight options. Last updated on 5 September 2026.

Other flights from Cardiff

Browse through other flights departing from Cardiff. Flights are based on user searches made on Cheapflights and were last updated on 5 September 2026.

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Cardiff to Heidelberg flights

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

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

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

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Cheapest flights from Cardiff to Heidelberg
Explore the most affordable flight options available from Cardiff to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Cardiff to Heidelberg
Discover carefully curated flight deals from Cardiff to Heidelberg that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Cardiff to Heidelberg
Discover last-minute flight deals from Cardiff to Heidelberg. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Cardiff to Heidelberg
Search for one-way flight options from Cardiff to Heidelberg. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.