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Cheap flights from Cardiff to Heidelberg from £113

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — FRA
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Cardiff to Heidelberg

Keep the following information in mind while searching for Cardiff to Heidelberg flight deals. Data was last updated 13 June 2025.

Round-trip from

£252

One-way from

£113

Popular in

May

Cheapest in

October

Average price

£298
26/7-2/8
  • 26/7-2/8
  • 3 total stops
  • 52h 10m total
  • Cardiff to Heidelberg
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7/7
  • 7/7
  • 1 total stop
  • 20h 05m total
  • Cardiff to Heidelberg
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£49 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from Cardiff to Heidelberg

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 13 June 2025.

Sat 26/709:00CWL - FRA
1 stop24h 15mMultiple Airlines
Sat 2/807:40FRA - CWL
2 stops27h 55mMultiple Airlines
Deal found 11/6£252
Sat 12/717:35CWL - FRA
2 stops38h 25mAir France
Sat 19/709:45FRA - CWL
2 stops8h 20mAir France
Deal found 11/6£281
Sat 26/709:45CWL - FRA
1 stop7h 00mKLM
Sat 2/807:00FRA - CWL
1 stop11h 05mKLM
Deal found 11/6£307

Cheapflights Fare Finder

Customise your flight search to find flights from Cardiff 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 13 June 2025.
Use the filters below to find and compare flights from Cardiff to Heidelberg that are best for you.

Fly from

Cardiff

Fly to

Heidelberg

Route

Depart

Return

Price

CardiffFrankfurt am Main

CWL - FRA

CWLFRA

Cardiff Wales

Sat 26/7

09:00-10:15

1 stop24h 15m

Frankfurt am Main

Sat 2/8

07:40-10:35

2 stops27h 55m

£252

CardiffFrankfurt am Main

CWL - FRA

CWLFRA

Cardiff Wales

Sat 12/7

17:35-09:00

2 stops38h 25m

Frankfurt am Main

Sat 19/7

09:45-17:05

2 stops8h 20m

£281

CardiffFrankfurt am Main

CWL - FRA

CWLFRA

Cardiff Wales

Sat 26/7

09:45-17:45

1 stop7h 00m

Frankfurt am Main

Sat 2/8

07:00-17:05

1 stop11h 05m

£307

CardiffFrankfurt am Main

CWL - FRA

CWLFRA

Cardiff Wales

Mon 7/7

13:10-10:15

1 stop20h 05m

£113

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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.
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

What is the cheapest month to book a flight from Cardiff to Heidelberg?

Currently, February is the cheapest month in which you can book a flight from Cardiff to Heidelberg (average of £187). Flying from Cardiff to Heidelberg in June is currently the most expensive (average of £281). 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.

Rainfall in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average rainfall totals by month.

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.

Temperature in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average temperature totals by month.

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).

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 13 June 2025.
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Heidelberg. 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 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 1 airline. 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.

  • What is the cheapest month to book a flight from Cardiff to Heidelberg?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to Heidelberg (average of £187). Flying from Cardiff to Heidelberg in June is currently the most expensive (average of £281). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Cardiff to Heidelberg

Discover the top airline that operate flights from Cardiff 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£188Average£296FlexibilityNo cancel feeOn-time75%
Search KLM flights

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