CWL - LHR

$101 Find Cheap Flights from Cardiff to London - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$303
Typical prices: $248-$555
Multiple Airlines
Wed 10/31Wed 11/7
CWL - LHR • 1 stop
Cheapest one-way
$101
Typical prices: $316-$958
Multiple Airlines
Fri 11/30
CWL - LHR • 1 stop
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $474 (round-trip)
Belfast City (BHD)
Shortest trip • 4h 27m (one-way)
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Cheap Flights from Cardiff to London (CWL-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cardiff to London

Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
11:50 pm - 8:05 amCWL  Cardiff Wales-LHR London Heathrow
8h 15m1 stop Dublin
Multiple Airlines Logo
9:55 am - 8:40 amLHR  London Heathrow-CWL Cardiff Wales
22h 45m3 stops Barcelona-El Prat Marrakech Menara Alicante
$303Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
Multiple Airlines Logo
11:50 pm - 8:05 amCWL  Cardiff Wales-LHR London Heathrow
8h 15m1 stop Dublin
Multiple Airlines Logo
9:55 am - 8:40 amLHR  London Heathrow-CWL Cardiff Wales
22h 45m3 stops Barcelona-El Prat Marrakech Menara Alicante
$308Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
Multiple Airlines Logo
11:50 pm - 8:05 amCWL  Cardiff Wales-LHR London Heathrow
8h 15m1 stop Dublin
Multiple Airlines Logo
10:20 am - 8:40 amLHR  London Heathrow-CWL Cardiff Wales
22h 20m2 stops Kastrup Copenhagen Alicante
$318Multiple Airlines
Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
11:50 pm - 9:05 amCWL  Cardiff Wales-LHR London Heathrow
9h 15m1 stop Dublin
Multiple Airlines Logo
1:40 pm - 8:40 amLHR  London Heathrow-CWL Cardiff Wales
19h 00m2 stops Lisbon Humberto Delgado Alicante
$319Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
KLM Logo
5:30 pm - 7:40 amCWL  Cardiff Wales-LHR London Heathrow
14h 10m1 stop Amsterdam Schiphol
KLM Logo
4:25 pm - 9:50 amLHR  London Heathrow-CWL Cardiff Wales
17h 25m1 stop Amsterdam Schiphol
$327KLM
Fri, Dec 4 - Wed, Jan 13
KLM Logo
5:30 pm - 8:50 pmCWL  Cardiff Wales-LHR London Heathrow
3h 20m1 stop Amsterdam Schiphol
KLM Logo
11:45 am - 5:00 pmLHR  London Heathrow-CWL Cardiff Wales
5h 15m1 stop Amsterdam Schiphol
$329KLM
Sun, Nov 1 - Sat, Nov 7
KLM Logo
5:30 pm - 7:40 amCWL  Cardiff Wales-LHR London Heathrow
14h 10m1 stop Amsterdam Schiphol
KLM Logo
4:25 pm - 9:50 amLHR  London Heathrow-CWL Cardiff Wales
17h 25m1 stop Amsterdam Schiphol
$330KLM
Sat, Oct 31 - Sat, Nov 7
KLM Logo
5:30 pm - 7:40 amCWL  Cardiff Wales-LHR London Heathrow
14h 10m1 stop Amsterdam Schiphol
KLM Logo
8:40 am - 5:00 pmLHR  London Heathrow-CWL Cardiff Wales
8h 20m1 stop Amsterdam Schiphol
$331KLM
Mon, Nov 2 - Mon, Nov 9
Multiple Airlines Logo
8:35 am - 4:50 pmCWL  Cardiff Wales-LHR London Heathrow
8h 15m1 stop Dublin
Multiple Airlines Logo
6:45 pm - 11:45 amLHR  London Heathrow-CWL Cardiff Wales
17h 00m1 stop Belfast City
$361Multiple Airlines
Mon, Nov 2 - Mon, Nov 9
Multiple Airlines Logo
8:35 am - 3:35 pmCWL  Cardiff Wales-LHR London Heathrow
7h 00m1 stop Dublin
Multiple Airlines Logo
8:50 pm - 11:35 pmLHR  London Heathrow-CWL Cardiff Wales
26h 45m3 stops Barcelona-El Prat Milan Malpensa Granadilla Tenerife-Sur
$406Multiple Airlines
Booking Insights

Price, demand and travel trends for Cardiff to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Cardiff to London Heathrow Airport with more confidence.

What is the cheapest airline to fly from Cardiff to London Heathrow Airport?

KLM ($327) offered the cheapest round-trip ticket from Cardiff to London Heathrow Airport in the last 5 days.

Find deals

Key details for Cardiff to London Heathrow Airport flights

Cheapest flight

$101
Flight from Cardiff to London Heathrow Airport

When to book flights from Cardiff to London

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

Your Cardiff to London Heathrow Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Cardiff to London Heathrow Airport?

    Flights from Cardiff to London Heathrow Airport usually depart from Cardiff Wales (CWL) and arrive at London Heathrow (LHR).

  • Which airports do connecting flights from Cardiff to London Heathrow Airport pass through?

    One-stop flights from Cardiff to London Heathrow Airport most commonly connect through:

    • Amsterdam Schiphol (AMS) - 50% of one-stop connections
    • Belfast City (BHD) - 40% of one-stop connections
    • Dublin (DUB) - 10% of one-stop connections

    Amsterdam Schiphol (AMS) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Cardiff to London Heathrow Airport?

    On the Cardiff to London Heathrow Airport route, being flexible with your departure day can save you up to 56%. Sunday is the cheapest day at $248 round-trip on average, while Friday is the most expensive at $555: a $307 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

  • How long is a flight from Cardiff to London Heathrow Airport?

    There are currently no nonstop flights available from Cardiff to London Heathrow Airport. Flights with 1 layover take between 4h 27m and 8h 17m in total, depending on the connection.

  • Do I need a passport to fly from Cardiff to London Heathrow Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Cardiff to London Heathrow Airport looking right now?

    One-way fares from Cardiff to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $143, which is 57% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Cardiff to London Heathrow Airport?

    Flying via Belfast City (BHD) gives the shortest average 1-stop total travel time at 4h 27m, compared with 6h 34m via Amsterdam Schiphol (AMS) and 8h 17m via Dublin (DUB).

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

Your guide to booking Cardiff to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Friday. On this route, Sunday flights average $248 - about $307 less than Friday (55% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

More options for your flight from Cardiff to London

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