£161 Find Cheap Flights from Cardiff to Heidelberg

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Heidelberg departing on 28/1. 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

KAYAK searches hundreds of travel sites at once for deals on flights from Cardiff to Heidelberg

Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£161
Multiple Airlines
Wed 28/1Wed 4/2
CWL - FRA • 1 stop
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heidelberg!
Flight Deals
Useful Info
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

Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
15:55 - 10:05
CWL
-
FRA
17h 10m1 stop
Multiple Airlines Logo
10:45 - 15:30
FRA
-
CWL
5h 45m1 stop
£161Multiple Airlines
Sun, 8 Feb - Sun, 15 Feb
Multiple Airlines Logo
21:20 - 10:05
CWL
-
FRA
11h 45m1 stop
Multiple Airlines Logo
18:30 - 23:05
FRA
-
CWL
29h 35m2 stops
£199Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
15:55 - 09:35
CWL
-
FRA
40h 40m3 stops
Multiple Airlines Logo
10:45 - 15:30
FRA
-
CWL
5h 45m1 stop
£200Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
15:55 - 09:50
CWL
-
FRA
16h 55m2 stops
Multiple Airlines Logo
10:45 - 15:30
FRA
-
CWL
5h 45m1 stop
£203Multiple Airlines
Sun, 8 Feb - Sun, 15 Feb
Multiple Airlines Logo
17:30 - 22:25
CWL
-
FRA
3h 55m1 stop
Multiple Airlines Logo
12:00 - 08:30
FRA
-
CWL
21h 30m1 stop
£228Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
15:55 - 11:05
CWL
-
FRA
42h 10m3 stops
Multiple Airlines Logo
09:20 - 18:45
FRA
-
CWL
10h 25m2 stops
£248Multiple Airlines
Thu, 8 Jan - Mon, 12 Jan
KLM Logo
10:20 - 17:55
CWL
-
FRA
6h 35m1 stop
KLM Logo
11:50 - 16:45
FRA
-
CWL
5h 55m1 stop
£250KLM
Thu, 1 Jan - Mon, 5 Jan
KLM Logo
10:20 - 17:15
CWL
-
FRA
5h 55m1 stop
KLM Logo
18:30 - 09:50
FRA
-
CWL
16h 20m1 stop
£254KLM
Thu, 5 Feb - Mon, 9 Feb
KLM Logo
17:25 - 22:25
CWL
-
FRA
4h 00m1 stop
KLM Logo
06:55 - 09:50
FRA
-
CWL
3h 55m1 stop
£256KLM
Tue, 10 Mar - Sat, 14 Mar
KLM Logo
10:20 - 17:15
CWL
-
FRA
5h 55m1 stop
KLM Logo
14:15 - 16:55
FRA
-
CWL
3h 40m1 stop
£262KLM
Useful Info

Good to know - Cheap tickets from Cardiff to Heidelberg

Low seasonNovember
Cheapest flight£161
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.

  • What’s the cheapest day of the week to fly between Cardiff and Heidelberg?

    Consider leaving on a Thursday and avoid Mondays if you're looking for the best rates. For your return to Cardiff, you’ll find the best rates on Mondays and the most expensive ones on Wednesdays.

  • 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 1432 reviews
7.6Comfort
7.2Food
7.8Boarding
7.1Entertainment
8.4Crew
Airline reviews

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

8.0 ExcellentKevin, Nov 2025
AMS - BOD
Read more KLM reviews

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.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

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.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

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

Complete your trip to Heidelberg with a hotel stay or car hire

Car hire in Heidelberg
Hotels in Heidelberg
Holidays in Heidelberg