£120 Find Cheap Flights from Cardiff to Heidelberg

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Heidelberg departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£168
Multiple Airlines
gio 12/3gio 19/3
CWL - FRA • 1 stop
Cheapest one-way flight
£120
Multiple Airlines
sab 4/4
CWL - FRA • 1 stop
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Flight Deals
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Flight Deals

Cheap Flights from Cardiff to Heidelberg (CWL-FRA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Heidelberg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Heidelberg

gio, 12 mar - gio, 19 mar
Multiple Airlines Logo
10:30 - 19:20
CWL
-
FRA
7h 50m
1 stop
Multiple Airlines Logo
20:00 - 22:00
FRA
-
CWL
27h 00m
1 stop
£168Multiple Airlines
gio, 12 mar - gio, 19 mar
Multiple Airlines Logo
10:30 - 18:40
CWL
-
FRA
7h 10m
2 stops
Multiple Airlines Logo
20:00 - 22:00
FRA
-
CWL
27h 00m
1 stop
£200Multiple Airlines
ven, 13 mar - ven, 20 mar
Multiple Airlines Logo
22:25 - 10:05
CWL
-
FRA
10h 40m
1 stop
Multiple Airlines Logo
09:10 - 22:00
FRA
-
CWL
13h 50m
2 stops
£210Multiple Airlines
ven, 13 mar - ven, 20 mar
Multiple Airlines Logo
22:25 - 10:05
CWL
-
FRA
10h 40m
1 stop
Multiple Airlines Logo
15:20 - 22:00
FRA
-
CWL
7h 40m
1 stop
£217Multiple Airlines
sab, 14 feb - ven, 20 feb
Multiple Airlines Logo
15:20 - 11:15
CWL
-
FRA
18h 55m
1 stop
Multiple Airlines Logo
11:50 - 09:50
FRA
-
CWL
23h 00m
1 stop
£226Multiple Airlines
sab, 14 feb - ven, 20 feb
Multiple Airlines Logo
20:05 - 17:55
CWL
-
FRA
20h 50m
2 stops
Multiple Airlines Logo
06:55 - 22:00
FRA
-
CWL
16h 05m
2 stops
£244Multiple Airlines
ven, 24 lug - sab, 1 ago
KLM Logo
09:45 - 22:00
CWL
-
FRA
11h 15m
1 stop
KLM Logo
18:40 - 09:15
FRA
-
CWL
15h 35m
1 stop
£253KLM
lun, 23 mar - mer, 1 apr
KLM Logo
10:20 - 17:15
CWL
-
FRA
5h 55m
1 stop
KLM Logo
18:40 - 09:15
FRA
-
CWL
15h 35m
1 stop
£261KLM
sab, 28 feb - mar, 3 mar
KLM Logo
17:25 - 09:35
CWL
-
FRA
15h 10m
1 stop
KLM Logo
19:20 - 09:50
FRA
-
CWL
15h 30m
1 stop
£262KLM
sab, 14 feb - ven, 20 feb
Multiple Airlines Logo
20:05 - 17:55
CWL
-
FRA
20h 50m
2 stops
Multiple Airlines Logo
11:50 - 09:50
FRA
-
CWL
23h 00m
1 stop
£266Multiple Airlines
Useful Info

Good to know - Cheap tickets from Cardiff to Heidelberg

Low seasonNovember
Cheapest flight£120
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Cardiff to Frankfurt am Main

When to book flights from Cardiff to Heidelberg

Are your dates flexible? Find out the best times to travel from Cardiff to Heidelberg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from Cardiff to Heidelberg

  • Which airports will I be using when flying from Cardiff to Heidelberg?

    When flying out of Cardiff you’ll be using Cardiff Wales. Heidelberg does not have its own airport so you’ll be flying into nearby Frankfurt am Main airport, which is 44.6 mi away.

  • How does KAYAK find such low prices on flights from Cardiff to Heidelberg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Heidelberg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Heidelberg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Heidelberg from Cardiff is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Heidelberg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Heidelberg with an airline and back to Cardiff with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Heidelberg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Heidelberg from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights from Cardiff to Heidelberg

  • There is no airport in Heidelberg. Instead, you’ll be flying into Frankfurt Airport when flying between Cardiff and Heidelberg.
  • High season is considered to be April, May and June. The cheapest month to fly is November.

Reviews of the top airline flying from Cardiff to Heidelberg

 
Need help choosing which airline to fly with from Cardiff to Heidelberg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1443 reviews
7.8Boarding
7.6Comfort
7.1Entertainment
8.4Crew
7.3Food
Airline reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

4.0 OkayShereen, Dec 2025
Read more KLM reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Everything you need to know for your flight from Cardiff to Heidelberg

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