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Round-trip from | £167 |
---|---|
One-way from | £116 |
Popular in | July |
Cheapest in | December |
Average price | £359 |
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Fly to
Route
Depart
Return
Price
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Sat 22/11
15:15-19:40
1 stop4h 25m
Cardiff Wales
Sat 29/11
16:45-14:45
2 stops22h 00m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Sat 8/11
07:50-19:40
1 stop11h 50m
Cardiff Wales
Sun 9/11
21:20-09:05
1 stop11h 45m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Wed 5/11
07:50-15:30
1 stop7h 40m
Cardiff Wales
Wed 12/11
15:55-21:05
1 stop5h 10m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Tue 21/10
07:40-15:55
1 stop8h 15m
Cardiff Wales
Sat 25/10
16:50-10:10
2 stops17h 20m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Wed 22/10
21:10-07:25
1 stop10h 15m
Cardiff Wales
Sun 26/10
21:20-08:05
1 stop10h 45m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Thu 20/11
09:55-15:40
2 stops29h 45m
Cardiff Wales
Thu 27/11
10:30-14:25
1 stop3h 55m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Mon 17/11
11:45-16:45
1 stop5h 00m
Cardiff Wales
Tue 25/11
10:20-17:00
1 stop6h 40m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Fri 12/12
20:25-09:50
1 stop13h 25m
Cardiff Wales
Mon 15/12
17:15-20:50
1 stop3h 35m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Wed 5/11
22:05-12:25
2 stops14h 20m
Cardiff Wales
Wed 19/11
15:55-21:05
1 stop5h 10m
LondonCardiff
LHR - CWL
LHRCWL
London Heathrow
Tue 4/11
10:00-16:55
1 stop6h 55m
Cardiff Wales
Tue 18/11
10:20-17:00
1 stop6h 40m
Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Cardiff (average of £190). Flying from London Heathrow Airport to Cardiff in July is currently the most expensive (average of £439). 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.
A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Cardiff at midday. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the morning.
Amsterdam (AMS) – chosen by Cheapflights users on 86% of one-stop itineraries from London Heathrow Airport to Cardiff on Cheapflights.
Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 49m.
Flights via Belfast (BHD) have the shortest average one-way travel time for one-stop routes: 3h 49m.
Flights via Belfast (BHD) offer the fastest connection on this route, with an average stopover time of 2h 17m.
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
Abisola,Oct 2025
LOS - CDG
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
Abisola,Oct 2025
LOS - CDG
Deals for Heathrow to Cardiff flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights simply makes it quick and affordable to book flights from Heathrow to Cardiff by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Certainly. Search results for flights to Cardiff from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!