Cardiff to London train with Great Western Railway

Mon, May 18
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Great Western Railway
South Western Railway
Great Western Railway (GWR)
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2,000+ travel companies
Great Western Railway
South Western Railway
Great Western Railway (GWR)
Renfe AVANT
Regionale
2,000+ travel companies
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The cheapest and fastest trains from Cardiff to London

Showing times and prices for May 18

Cheapest price

€62

Average price

€78

Fastest journey

1 h 47 m

Average duration

1 h 50 m

Trains per day

32

Distance

211 km

Cheap tickets

The best way to find a cheap train ticket from Cardiff to London is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Cardiff to London will cost around €78 if you buy it on the day, but the cheapest tickets can be found for only €62.

Fast trains

Of the 32 trains that leave Cardiff for London on Mon, May 18, 30 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Mon, May 18 the direct trains cover the 211 km distance in an average of 1 h 50 m but if you time it right, some trains will get you there in just 1 h 47 m .

On Mon, May 18 the slowest trains will take 1 h 51 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • Great Western RailwayG15044
    10:50 AM1h59
    Cardiff Central (CDF)
    12:49 PMLondon Paddington (PAD)
    621One-way
    0 transfers
  • Great Western RailwayG15051
    9:20 PM1h51
    Cardiff Central (CDF)
    11:11 PMLondon Paddington (PAD)
    621One-way
    0 transfers
  • Great Western RailwayW35182
    11:50 AM1h55
    Cardiff Central (CDF)
    1:45 PMLondon Paddington (PAD)
    621One-way
    0 transfers
  • Great Western RailwayG15047
    12:50 PM1h54
    Cardiff Central (CDF)
    2:44 PMLondon Paddington (PAD)
    621One-way
    0 transfers
  • Great Western RailwayG15049
    3:18 PM1h54
    Cardiff Central (CDF)
    5:12 PMLondon Paddington (PAD)
    621One-way
    0 transfers

Travel Information

Compare train and bus for Cardiff to London

Omio recommends booking the bus as it is the most popular option from Cardiff to London among Omio's users. If you are prioritising price take the bus with prices starting from €6. For those with little time consider booking a train which can get you there in 3h 10m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.2kg. The ticket price range depends on the travel mode: a bus costs an average of €6, and a train costs an average of €38.

Distance: 211 km

Compare train with

Train
Most popular
Bus

€67

Average price

€16

Average price

Cheapest

3h 40m

Average total duration

Fastest

3h 10m

Onboard

+

30m

Additional time*

3h 53m

Average total duration

3h 23m

Onboard

+

30m

Additional time*

0.1 - 0.2kg

CO2 emissions

Lowest

0.2 - 0.5kg

CO2 emissions

Great Western Railway

Most popular train company

National Express

Most popular bus company

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

Live departures

Cardiff to London train times

The table below shows live departures for Cardiff to London trains for today, Sunday, May 17. You can also manually refresh the results below to see updated train journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
Great Western Railway7:20 PM Cardiff
2h04
9:24 PM London0 transfersDirect
Great Western Railway9:20 PM Cardiff
2h07
11:27 PM London0 transfersDirect
Monday, May 18
Great Western RailwayW354315:07 AM Cardiff Central (CDF)
2h09
7:16 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351605:53 AM Cardiff Central (CDF)
1h51
7:44 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150406:24 AM Cardiff Central (CDF)
1h52
8:16 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351666:51 AM Cardiff Central (CDF)
2h00
8:51 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351677:23 AM Cardiff Central (CDF)
1h49
9:12 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351697:49 AM Cardiff Central (CDF)
1h55
9:44 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150418:18 AM Cardiff Central (CDF)
1h56
10:14 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150428:38 AM Cardiff Central (CDF)
1h58
10:36 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW354329:19 AM Cardiff Central (CDF)
2h01
11:20 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150439:49 AM Cardiff Central (CDF)
1h57
11:46 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW3517810:18 AM Cardiff Central (CDF)
1h53
12:11 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG1504410:50 AM Cardiff Central (CDF)
1h59
12:49 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG1504511:18 AM Cardiff Central (CDF)
1h52
1:10 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW3518211:50 AM Cardiff Central (CDF)
1h55
1:45 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG1504612:18 PM Cardiff Central (CDF)
1h54
2:12 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG1504712:50 PM Cardiff Central (CDF)
1h54
2:44 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW354341:18 PM Cardiff Central (CDF)
1h54
3:12 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351871:50 PM Cardiff Central (CDF)
1h54
3:44 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351882:18 PM Cardiff Central (CDF)
1h51
4:09 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150482:54 PM Cardiff Central (CDF)
1h47
4:41 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150493:18 PM Cardiff Central (CDF)
1h54
5:12 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351943:54 PM Cardiff Central (CDF)
1h50
5:44 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW354354:21 PM Cardiff Central (CDF)
1h52
6:13 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351964:50 PM Cardiff Central (CDF)
1h51
6:41 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW351985:18 PM Cardiff Central (CDF)
1h58
7:16 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW352005:50 PM Cardiff Central (CDF)
1h54
7:44 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG150506:18 PM Cardiff Central (CDF)
1h56
8:14 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG15022 · W345236:30 PM Cardiff Central (CDF)
2h38
9:08 PM London Paddington (PAD)1 transfer
Great Western RailwayW352027:18 PM Cardiff Central (CDF)
1h52
9:10 PM London Paddington (PAD)0 transfersDirect

This is the last train of the day.

Find all the dates and times for this journey

Compare prices and tickets Cardiff to London by train or bus

Compare train and bus prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

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May 17
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Why should you book Cardiff to London trains with Omio?

Great Western Railway as well as South Western Railway or Great Western Railway (GWR) offer trains services from Cardiff to London.
Omio is an official ticket reseller for all your travel options from Cardiff to London.

Why book with Omio vs Great Western Railway?

  • Compare with other providers: On Omio, you can not only buy tickets for Great Western Railway, but also compare tickets for the likes of South Western Railway or Great Western Railway (GWR) to find the best option for your trip from Cardiff to London.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare Great Western Railway with all available travel options, which are train and bus to ensure you get the best deal for traveling from Cardiff to London.

Why book with Omio over Wanderu?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of South Western Railway or Great Western Railway (GWR) to find the best option for your trip from Cardiff to London.
  • Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Cardiff to London.

How far in advance should I book train tickets from Cardiff to London?

The best time to book your train from Cardiff to London is 70 days before departure. See how prices for trains change on the Cardiff to London route.
Prices are for one-way tickets for one passenger from Cardiff to London per month. Insights are sourced from fares found by Omio users in the last 12 months. Current prices may differ as prices vary depending on the time of day, class or how far in advance you book your train from Cardiff to London.

Journey information

Overview: Train from Cardiff to London

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of train

Trains from Cardiff to London run on average 13 times per day, taking around 3h 10m. Cheap train tickets for this journey start at €38 but you can travel from only €6 by bus.

There are 11 trains per day. The earliest train runs at 00:07, the last at 23:00. The fastest train covers the 211 km distance in 1h 49m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from €6
Distance
211 km
Average train duration
3h 10m
Cheapest ticket price
€38
Trains per day
13
Direct trains
11
Fastest train
1h 49m
First train
12:07 AM
Last train
11:00 PM
Cheapest Month
Jul
Cheapest Day
Mon
High Season
Oct - Dec
Low Season
Apr - Jun
Busiest Day
Mon
Least Busy Day
Sun
Best time to book
49 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from €6

Train companies: Great Western Railway, South Western Railway, Great Western Railway (GWR) from Cardiff to London trainsGreat Western Railway, South Western Railway, Great Western Railway (GWR) trains will get you between Cardiff and London from €6. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.

Great Western Railway

About
Great Western Railway is a train operating company in the United Kingdom. It operates services from London Paddington to the West of England, South Wales and the Cotswolds. It also operates services from London Paddington to Oxford, Reading and Bristol. It offers a range of ticket types, including Advance, Anytime, Off-Peak and Super Off-Peak tickets. Onboard facilities include free Wi-Fi, power sockets, air conditioning and catering services. The most popular routes for Great Western Railway are London Paddington to Bristol, Reading and Oxford.
Luggage & cancellation policy
Average Duration
1h 49m
Cheapest Price
€38
Luggage included
Two pieces of luggage and one piece of hand luggage included in ticket price
Luggage storage
Overhead racks, dedicated luggage areas at end of carriages, under seats
Cancellation Policy
Refund policies apply as per ticket type
Refund
Full refund if train is cancelled
Amenities on board the train
Wifi
Food sold onboard
Cafe bar serving hot and cold drinks, snacks, sandwiches. First Class at-seat service on some routes
Seat reservation
Optional seat reservations available for a fee. Free in First Class
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, priority seating, assistance service available
Pets
Small pets travel free. Dogs must be on lead. Maximum two dogs per passenger
Quiet zone

South Western Railway

About
South Western Railway is a train operating company in the United Kingdom, providing services in the south and south-west of England. It operates a variety of train types, including high-speed trains, local stopping services, and suburban commuter trains. It also offers a range of ticket types, including Advance, Off-Peak, and Super Off-Peak tickets. Onboard facilities include free Wi-Fi, power sockets, and a range of food and drink options. The most popular routes for South Western Railway include London Waterloo to Portsmouth Harbour, London Waterloo to Weymouth, and London Waterloo to Bournemouth.
Luggage & cancellation policy
Average Duration
3h 14m
Cheapest Price
€74
South Western Railway frequency
1 a day
Luggage included
2 pieces of luggage included in ticket price
Luggage storage
Overhead racks and designated luggage areas at end of carriages
Cancellation Policy
Refund depends on ticket type and timing of cancellation
Refund
Full refund if train is cancelled by operator
Amenities on board the train
Wifi
Food sold onboard
Cafe bar service with hot and cold drinks, snacks, sandwiches
Seat reservation
Seat reservations available for a fee, free for some ticket types
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, assistance service available
Pets
Small pets travel free, dogs must be on lead
Quiet zone

Great Western Railway (GWR)

Luggage & cancellation policy
Average Duration
1h 48m
Cheapest Price
€140
Great Western Railway (GWR) frequency
16 a day

FAQs: Trains from Cardiff to London

Find answers to the most common questions about traveling from Cardiff to London by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at London, this guide helps you travel smarter and with confidence.

FAQs
Cheap train tickets from Cardiff to London can start from as little as €38 when you book in advance. The average train ticket price for Cardiff to London is €67; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by train from Cardiff to London is 1h 49m to travel the 211 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest train from Cardiff to London leaves at 12:07 AM. Plan your trip with the Journey Planner   from Omio.
The latest train from Cardiff to London leaves at 11:00 PM.
Yes,there are 11 direct trains a day from Cardiff to London with Great Western Railway, Great Western Railway (GWR). Schedules can vary on holidays or weekends with fewer direct trains.
When taking a train from Cardiff to London, you can count on Great Western Railway, South Western Railway, Great Western Railway (GWR) for the best way to get you to London. You can also check all possible train companies who offer a service between Cardiff and London and compare the amenities they offer before buying a train ticket.
A day trip to London from Cardiff is worth doing with a journey time of 1h 49m each way. Check with Omio app the best way to travel.
The cheapest month for a train from Cardiff to London is July.
It's helpful to compare your options as there are 2 ways to travel between Cardiff and London including taking a train and bus.

popular train stations

Popular train stations from Cardiff to London

Cardiff
London
The major train station for departures in Cardiff is Cardiff Central. Find all the information you need to know about services, amenities and connections at Cardiff Central for your trip from Cardiff to London.
Amenities at train station
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
LoungeLounge
Lost and Found OfficeLost and Found Office
Ticket OfficeTicket Office
Bike ParkingBike Parking
Bike RentalBike Rental
Car RentalCar Rental
information
ticketOfficeHours
Ticket Office Hours
  • Mon - Fri: 05:40 - 21:30
  • Sat: 05:40 - 21:30
  • Sun: 07:30 - 21:30
Wifi
Wifi
  • Free Wi-Fi in the station.
Shopping
Shopping
  • Type of shops available: News agent and convenience store
Parking
Parking
  • Car Park: Brewery Car park
Dining
Dining
  • Gourmet Coffee Bar & Kitchen
  • Pret a Manger
  • Tesco Express
Taxis
Taxis
  • Taxi: Taxi rank is on the right as you exit the main station entrance
Accessibility
Accessibility
  • There is step-free access in the whole station. There are also ramps for train access and elevators in the station.
WC
WC
  • Toilets Location: The toilets are located on Platforms 1 to 8. The National Key toilets are located in the East Subway near the lifts and on Platform 8; these toilets are operated by a radar key and are only available during staffing hours.
  • National key toilets: Yes
  • National key toilets location: The National Key/Accessible toilets are located in the East Subway near the lifts and on Platform 8; these toilets are operated by a RADAR key and are only available during staffing hours.
  • Baby changing facilities: Yes
Hotel
Hotel
  • Clayton Hotel Cardiff
  • Cardiff Marriott Hotel
  • Travelodge Cardiff Central
Lounge
Lounge
  • Waiting rooms location: On platforms 1/2, 3/4, 6/7 and 8.
Ticket Office
Ticket Office
  • Mon - Fri: 05:40 - 21:30
  • Sat: 05:40 - 21:30
  • Sun: 07:30 - 21:30
Bike Parking
Bike Parking
  • Storage sheltered: Yes
  • Storage location: East end of platforms 1 and 2, 3 and 4, 6 and 7 - also at the front and rear of the station.
  • Storage CCTV: Yes
Public transit options for Cardiff Central
  • Commuter rail lines: City Line, Rhondda Line, Rhymney Line, Valley Line, South Wales Main Line
  • Train lines: Transport for Wales, CrossCountry, Great Western Railway
  • Location for Rail Replacement Services: At the rear car park (Penarth Road entrance)
CathaysParkingDiningAccessibilityHotelLost and Found OfficeTicket OfficeBike ParkingBike RentalInformation Desk
Amenities at train station
ParkingParking
DiningDining
AccessibilityAccessibility
HotelHotel
Lost and Found OfficeLost and Found Office
Ticket OfficeTicket Office
Bike ParkingBike Parking
Bike RentalBike Rental
Information DeskInformation Desk
information
ticketOfficeHours
Ticket Office Hours
  • Opening hours: Monday, Tuesday, Wednesday, Thursday, Friday 07:30 - 18:30 Saturday 09:30 - 15:30 Sunday Closed
Parking
Parking
  • Car Park: No
Accessibility
Accessibility
  • Staff help available: Yes
  • Step free access coverage: No
  • Step free access note: Category B3. While both platforms are step-free, there is no facility for wheelchair users, mobility scooter users or persons with reduced mobility to cross between Platform 1 and 2 due to a steep footbridge. Customers who have travelled from the Valleys and wish to access the University or the Civic Centre are advised to travel to Queen Street station, change onto a North-bound service and alight at Cathays on the return service.
  • Accessible ticket machines: There are accessible ticket machines at this station
  • Accessible ticket machines note: The ticket machine(s) take cash, and major debit and credit cards. The machine on the Cardiff-bound platform is only available during staffing hours. The machine on the Pontypridd-bound platform is available all the time.
  • Ramp for train access: Yes
  • Wheelchairs available: No
  • Impaired mobility set down / pick up points available: No
Hotel
Hotel
  • Travelodge
Information Desk
Information Desk
  • Information available from staff: Yes - from ticket office
  • Helpline Contact: 03333 211202
  • Passenger Information Systems: Departure screens, Arrival screens
Public transit options for Cathays
  • Onward travel information: The nearest bus stop is on Park Place
  • Location for Rail Replacement Services: At the bus stops adjacent to the Cardiff University Students' Union on Park Place
Cardiff Queen StreetParkingDiningTaxisAccessibilityWCHotelLost and Found OfficeTicket OfficeBike ParkingBike RentalInformation Desk
Amenities at train station
ParkingParking
DiningDining
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
Lost and Found OfficeLost and Found Office
Ticket OfficeTicket Office
Bike ParkingBike Parking
Bike RentalBike Rental
Information DeskInformation Desk
information
ticketOfficeHours
Ticket Office Hours
  • Opening hours: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday 07:40 - 18:00 Sunday 10:00 - 15:30 Temporary opening hours due to the COVID-19 pandemic.
Parking
Parking
  • Car Park: No
Accessibility
Accessibility
  • Staff help available: Yes
  • Step free access coverage: Yes
  • Accessible ticket machines: There are accessible ticket machines at this station
  • Accessible ticket machines note: The ticket machines are near the main entrance and take cash and major debit and credit cards.
  • Accessible toilets: Yes
  • Ramp for train access: Yes
  • Wheelchairs available: No
  • Impaired mobility set down / pick up points available: No
WC
WC
  • Toilets Location: The toilets are located on Platform 4. The National key toilets are located on the Main Concourse to the right of the Ticket Office; these toilets are operated by a radar key and are only available during staffing hours.
  • National key toilets: Yes
  • Baby changing facilities: No
Hotel
Hotel
  • Travelodge
Bike Parking
Bike Parking
  • Storage sheltered: No
  • Storage location: to the right of the station front
  • Storage CCTV: Yes
Information Desk
Information Desk
  • Information available from staff: Yes - from ticket office
  • Helpline Contact: 03333 211202
  • Passenger Information Systems: Departure screens, Announcements, Arrival screens
Public transit options for Cardiff Queen Street
  • Onward travel information: Limited service from stop outside station Mondays to Fridays
  • Location for Rail Replacement Services: For services towards Cardiff Central use the bus stop at the front of the station. For services towards Cathays use the bus stop in front of the shop opposite the station entrance. Please ask a member of station staff if you are unsure of which stop to use.
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