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.

£182+ 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

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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 17 September 2026.

Wed 14/1023:50 -

1 stop9h 25m

Wed 21/1011:15 -

2 stops13h 10m

Deal found 15/9£191

Fri 30/1023:10 -

1 stop9h 55m

Fri 6/1109:10 -

2 stops7h 30m

Deal found 14/9£210

Thu 15/1009:00 -

2 stops22h 10m

Wed 21/1011:15 -

2 stops13h 10m

Deal found 14/9£215

Thu 29/1013:25 -

1 stop4h 55m

Thu 5/1120:10 -

2 stops20h 30m

Deal found 13/9£216

Mon 21/922:10 -

1 stop11h 05m

Mon 28/921:00 -

2 stops19h 50m

Deal found 16/9£218

Sun 1/1123:50 -

1 stop9h 15m

Sun 8/1121:40 -

1 stop11h 30m

Deal found 17/9£219

Wed 28/1010:40 -

2 stops22h 05m

Wed 4/1106:50 -

1 stop4h 00m

Deal found 13/9£228

Find flight deals from Cardiff to Heidelberg

Round-trip from	£191
One-way from	£182

14/10-21/10
3 total stops
22h 35m total
Cardiff to Heidelberg

Search Deals

KLM
28/11-31/12
1 total stop
3h 55m total
Cardiff to Heidelberg

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sat 28/11

17:30-22:25

1 stop3h 55m

Frankfurt am Main

Wed 31/12

00:00-00:00

Nonstop0h 00m

£182

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

11:15-23:25

2 stops13h 10m

£193

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Sun 1/11

23:50-10:05

1 stop9h 15m

Frankfurt am Main

Sun 8/11

21:40-08:10

1 stop11h 30m

£219

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Wed 28/10

10:40-09:45

2 stops22h 05m

Frankfurt am Main

Wed 4/11

06:50-09:50

1 stop4h 00m

£228

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Thu 15/10

16:20-08:20

2 stops15h 00m

Frankfurt am Main

Wed 21/10

10:30-23:25

1 stop13h 55m

£236

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Wed 28/10

10:20-18:00

1 stop6h 40m

Frankfurt am Main

Wed 4/11

10:15-17:00

1 stop7h 45m

£236

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Thu 29/10

17:30-12:35

2 stops18h 05m

Frankfurt am Main

Thu 5/11

20:10-15:40

2 stops20h 30m

£236

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Thu 15/10

16:55-09:00

2 stops15h 05m

Frankfurt am Main

Thu 22/10

07:00-22:25

1 stop16h 25m

£239

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Thu 24/9

17:15-11:05

1 stop16h 50m

Frankfurt am Main

Wed 31/12

00:00-00:00

Nonstop0h 00m

£240

CardiffFrankfurt am Main

CWL Cardiff Wales - FRA Frankfurt am Main

CWLFRA

Cardiff Wales

Tue 15/12

10:20-22:05

2 stops10h 45m

Frankfurt am Main

Fri 18/12

10:15-09:50

1 stop24h 35m

£244

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 12 resultsSorted 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.

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.

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Cheap flights from Cardiff to Heidelberg from £182

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/11. 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 17 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 17 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 17 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 17 September 2026.

Last-minute flights from Cardiff to HeidelbergDiscover last-minute flight deals from Cardiff to Heidelberg. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to Heidelberg. Data last updated 17 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 17 September 2026.

Search for one-way flight options from Cardiff to Heidelberg. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

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Best time to book a flight from Cardiff to Heidelberg

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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 17 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 17 September 2026.

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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 17 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 17 September 2026.

Last-minute flights from Cardiff to Heidelberg
Discover last-minute flight deals from Cardiff to Heidelberg. Data last updated 17 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 17 September 2026.