Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Cardiff to London from £83

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Cardiff to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
22:10 - 08:05CWL  Cardiff Wales-LHR London Heathrow
9h 55m1 stop Dublin
Multiple Airlines Logo
15:10 - 21:45LHR  London Heathrow-CWL Cardiff Wales
6h 35m1 stop Dublin
£161Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
07:30 - 17:20CWL  Cardiff Wales-LHR London Heathrow
9h 50m1 stop Dublin
Multiple Airlines Logo
14:20 - 23:25LHR  London Heathrow-CWL Cardiff Wales
9h 05m1 stop Dublin
£162Multiple Airlines
Sat, 12 Sep - Wed, 16 Sep
Multiple Airlines Logo
23:50 - 11:10CWL  Cardiff Wales-LHR London Heathrow
11h 20m1 stop Dublin
Multiple Airlines Logo
18:10 - 23:25LHR  London Heathrow-CWL Cardiff Wales
5h 15m1 stop Dublin
£165Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
23:50 - 08:05CWL  Cardiff Wales-LHR London Heathrow
8h 15m1 stop Dublin
Multiple Airlines Logo
15:10 - 23:25LHR  London Heathrow-CWL Cardiff Wales
8h 15m1 stop Dublin
£169Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
22:50 - 08:05CWL  Cardiff Wales-LHR London Heathrow
9h 15m1 stop Dublin
Multiple Airlines Logo
15:50 - 22:25LHR  London Heathrow-CWL Cardiff Wales
6h 35m1 stop Dublin
£172Multiple Airlines
Thu, 17 Sep - Thu, 24 Sep
Multiple Airlines Logo
07:30 - 20:20CWL  Cardiff Wales-LHR London Heathrow
12h 50m1 stop Dublin
Multiple Airlines Logo
14:20 - 23:25LHR  London Heathrow-CWL Cardiff Wales
9h 05m1 stop Dublin
£177Multiple Airlines
Sat, 5 Sep - Wed, 9 Sep
Multiple Airlines Logo
23:50 - 10:20CWL  Cardiff Wales-LHR London Heathrow
10h 30m1 stop Dublin
Multiple Airlines Logo
14:20 - 23:25LHR  London Heathrow-CWL Cardiff Wales
9h 05m1 stop Dublin
£187Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
22:45 - 09:05CWL  Cardiff Wales-LHR London Heathrow
10h 20m1 stop Dublin
Multiple Airlines Logo
16:50 - 21:45LHR  London Heathrow-CWL Cardiff Wales
4h 55m1 stop Dublin
£188Multiple Airlines
Fri, 4 Sep - Mon, 7 Sep
Multiple Airlines Logo
22:45 - 09:05CWL  Cardiff Wales-LHR London Heathrow
10h 20m1 stop Dublin
Multiple Airlines Logo
21:10 - 07:20LHR  London Heathrow-CWL Cardiff Wales
10h 10m1 stop Dublin
£191Multiple Airlines
Fri, 2 Oct - Thu, 8 Oct
Multiple Airlines Logo
22:50 - 10:20CWL  Cardiff Wales-LHR London Heathrow
11h 30m1 stop Dublin
Multiple Airlines Logo
15:50 - 23:25LHR  London Heathrow-CWL Cardiff Wales
7h 35m1 stop Dublin
£193Multiple Airlines
Thu, 1 Oct - Wed, 7 Oct

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

British Airways flights from Cardiff to London Heathrow Airport

Our best British Airways deals on Cardiff to London Heathrow Airport flight tickets
British Airways
7 Oct
CWL12:00Cardiff Wales
5h 25m
1 stop
LHR17:25London Heathrow
11 Oct
LHR18:00London Heathrow
17h 30m
1 stop
CWL11:30Cardiff Wales
£366
British Airways
7 Oct
CWL12:00Cardiff Wales
5h 25m
1 stop
LHR17:25London Heathrow
11 Oct
LHR18:00London Heathrow
17h 30m
1 stop
CWL11:30Cardiff Wales
£367
British Airways
7 Oct
CWL12:00Cardiff Wales
5h 25m
1 stop
LHR17:25London Heathrow
11 Oct
LHR18:00London Heathrow
17h 30m
1 stop
CWL11:30Cardiff Wales
£369

KLM flights from Cardiff to London Heathrow Airport

Our best KLM deals on Cardiff to London Heathrow Airport flight tickets
KLM
4 Oct
CWL09:50Cardiff Wales
9h 40m
1 stop
LHR19:30London Heathrow
11 Oct
LHR20:55London Heathrow
12h 20m
1 stop
CWL09:15Cardiff Wales
£289
KLM
16 Sept
CWL17:15Cardiff Wales
3h 40m
1 stop
LHR20:55London Heathrow
23 Sept
LHR20:55London Heathrow
12h 20m
1 stop
CWL09:15Cardiff Wales
£380

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Mon 14/9

22:10-08:05

1 stop9h 55m

London Heathrow

Mon 21/9

15:10-21:45

1 stop6h 35m

£161

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Sat 12/9

07:30-17:20

1 stop9h 50m

London Heathrow

Wed 16/9

14:20-23:25

1 stop9h 05m

£162

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Wed 16/9

23:50-11:10

1 stop11h 20m

London Heathrow

Wed 23/9

18:10-23:25

1 stop5h 15m

£165

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Wed 16/9

23:50-08:05

1 stop8h 15m

London Heathrow

Wed 23/9

15:10-23:25

1 stop8h 15m

£169

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Thu 17/9

22:50-08:05

1 stop9h 15m

London Heathrow

Thu 24/9

15:50-22:25

1 stop6h 35m

£172

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Sat 5/9

07:30-20:20

1 stop12h 50m

London Heathrow

Wed 9/9

14:20-23:25

1 stop9h 05m

£177

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Wed 2/9

23:50-10:20

1 stop10h 30m

London Heathrow

Wed 9/9

14:20-23:25

1 stop9h 05m

£187
Fastest return journey

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Fri 4/9

22:45-09:05

1 stop10h 20m

London Heathrow

Mon 7/9

16:50-21:45

1 stop4h 55m

£188

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Fri 2/10

22:45-09:05

1 stop10h 20m

London Heathrow

Thu 8/10

21:10-07:20

1 stop10h 10m

£191

CardiffLondon

CWL Cardiff Wales - LHR London Heathrow

CWLLHR

Cardiff Wales

Thu 1/10

22:50-10:20

1 stop11h 30m

London Heathrow

Wed 7/10

15:50-23:25

1 stop7h 35m

£193

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Cardiff to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Cardiff is on a Monday. momondo users have found tickets for Monday departures for as low as £576. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £763.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Cardiff to London Heathrow Airport in the afternoon for as low as £578. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £809 on average. Flights to London Heathrow Airport from Cardiff in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Cardiff Wales to London Heathrow flight route?

Fly from Cardiff Wales to London Heathrow for the best Cardiff Wales - London Heathrow flight prices

What cabin class options are available on Cardiff to London Heathrow Airport flights?

There is only 1 cabin class available to choose from on Cardiff to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When to book flights from Cardiff to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Cardiff to London Heathrow Airport (CWL to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to London Heathrow Airport

Best price found

£83

Fastest flight time

7h 40m

Direct flights

None
The best one-way flight to London Heathrow Airport from Cardiff in the past 72 hours is £83. The best return flight deal from Cardiff to London Heathrow Airport found on momondo in the last 72 hours is £161.
The fastest flight from Cardiff to London Heathrow Airport takes 7h 40m
There are no direct flights from Cardiff to London Heathrow Airport. There are no popular flight routes from Cardiff to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Cardiff to London Heathrow Airport

  • How far is Cardiff Wales to London Heathrow by plane?

    Cardiff Wales and London Heathrow are 117.1 mi apart from one another. Typically, this will take 7h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Cardiff Wales Airport to London Heathrow Airport?

    Prices for flights from Cardiff Wales Airport to London Heathrow Airport refresh daily.

  • How old do you have to be to fly from Cardiff Wales Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Wembley
Gatwick
Milton Keynes
Stratford-upon-Avon
Luton
Southend-on-Sea
Slough
Northampton
Ipswich
Maidstone
Swindon
Folkestone
Hastings
Ilford
Poole
Canterbury
Chichester
Hayes
Guildford

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to London for you.

Can I find flights from Cardiff to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Cardiff.

I’m not ready to book a flight from Cardiff to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Cardiff and alert you when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 21/9
Mon 28/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London