The cheapest and fastest trains from Cardiff to Slough
Cheapest price
£62
Average price
£77
Fastest journey
2 h 57 m
Average duration
3 h 3 m
Trains per day
8
Distance
179 km
The best way to find a cheap train ticket from Cardiff to Slough is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Cardiff to Slough will cost around £77 if you buy it on the day, but you can find cheap train tickets today for only £62.
To travel from Cardiff to Slough you need to make at least one change.
W35432+
C376519:193h02Cardiff Central (CDF)12:21Slough station (SLO)£621One-way1 change
W35167+
C374597:232h57Cardiff Central (CDF)10:20Slough station (SLO)£621One-way1 change
G01067+
W35227 · C478839:453h16Cardiff Central (CDF)13:01Slough station (SLO)£621One-way2 changes
G15041 · W35225 · C478798:183h43Cardiff Central (CDF)12:01Slough station (SLO)£851One-way2 changes
G15041+
C375528:183h03Cardiff Central (CDF)11:21Slough station (SLO)£851One-way1 change
W35167+
C374597:232h57Cardiff Central (CDF)10:20Slough station (SLO)£621One-way1 change
W35432+
C376519:193h02Cardiff Central (CDF)12:21Slough station (SLO)£621One-way1 change
G15041+
C375528:183h03Cardiff Central (CDF)11:21Slough station (SLO)£851One-way1 change
G00938+
GW583900 · W35169+
C375077:453h06Cardiff Central (CDF)10:51Slough station (SLO)£861One-way3 changes
G66712+
GW583700 · G15042+
C376018:453h07Cardiff Central (CDF)11:52Slough station (SLO)£861One-way3 changes
Travel Information
Compare train and coach for Cardiff to Slough
Omio recommends booking the train as it is the most popular option from Cardiff to Slough among Omio's users. If you are prioritising price take the coach with prices starting from £10. For those with little time consider booking a train which can get you there in 1h 57m. 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 coach costs an average of £10, and a train costs an average of £33.
Distance: 179 km
Compare train with
Most popular Train | Coach |
|---|---|
£55 Average Price | £17 Average Price Cheapest |
2h 27m Average total duration Fastest 1h 57m Onboard + 30m Additional time* | 4h 44m Average total duration 4h 14m Onboard + 30m Additional time* |
0.1 - 0.2kg CO2 emissions Lowest | 0.2 - 0.4kg CO2 emissions |
![]() Most popular train company | ![]() 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 Slough train times
The table below shows live departures for Cardiff to Slough trains for tomorrow, Thursday 4 June. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
W35167+ C37459 | 7:23 Cardiff Central (CDF) | 2h57 | 10:20 Slough station (SLO) | 1 change | |
G00938+ GW583900 · W35169+ C37507 | 7:45 Cardiff Central (CDF) | 3h06 | 10:51 Slough station (SLO) | 3 changes | |
G15041 · W35225 · C47879 | 8:18 Cardiff Central (CDF) | 3h43 | 12:01 Slough station (SLO) | 2 changes | |
G15041+ C37552 | 8:18 Cardiff Central (CDF) | 3h03 | 11:21 Slough station (SLO) | 1 change | |
G66712+ W35225 · C47879 | 8:45 Cardiff Central (CDF) | 3h16 | 12:01 Slough station (SLO) | 2 changes | |
G66712+ GW583700 · G15042+ C37601 | 8:45 Cardiff Central (CDF) | 3h07 | 11:52 Slough station (SLO) | 3 changes | |
W35432+ C37651 | 9:19 Cardiff Central (CDF) | 3h02 | 12:21 Slough station (SLO) | 1 change | |
G01067+ W35227 · C47883 | 9:45 Cardiff Central (CDF) | 3h16 | 13:01 Slough station (SLO) | 2 changes | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Cardiff to Slough by train or coach
Compare train and coach 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.
04 Jun
05 Jun
06 Jun
07 Jun
08 Jun
09 Jun
10 Jun
Why should you book Cardiff to Slough trains with Omio?
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 Great Western Railway (GWR) to find the best option for your trip from Cardiff to Slough.
- 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 Slough.
Why book with Omio over Wanderu?
- Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from Cardiff to Slough.
How far in advance should I book train tickets from Cardiff to Slough?
Journey information
Overview: Train from Cardiff to Slough
Trains from Cardiff to Slough run on average 7 times per day, taking around 1h 57m. Cheap train tickets for this journey start at £33 but you can travel from only £10 by coach.
The earliest train runs at 04:02, the last at 22:54. The fastest train covers the 179 km distance in 1h 58m.
Distance 179 km |
Average train duration 1h 57m |
Cheapest ticket price £33 |
Trains per day 7 |
Fastest train 1h 58m |
First train 4:02 |
Last train 22:54 |
Cheapest Month Oct |
Cheapest Day Tue |
High Season Apr - Jun |
Low Season Oct - Dec |
Busiest Day Sat |
Least Busy Day Fri |
Best time to book 63 days |
Train companies: Great Western Railway, Great Western Railway (GWR) from Cardiff to Slough trainsGreat Western Railway, Great Western Railway (GWR) trains will get you between Cardiff and Slough from £10. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Railway
Great Western Railway (GWR)
FAQs: Cardiff to Slough train
Find answers to the most common questions about traveling from Cardiff to Slough 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 Slough, this guide helps you travel smarter and with confidence.

popular train stations
Important Stations and Airports in Cardiff and Slough
- Mon - Fri: 05:40 - 21:30
- Sat: 05:40 - 21:30
- Sun: 07:30 - 21:30
- Free Wi-Fi in the station.
- Type of shops available: News agent and convenience store
- Car Park: Brewery Car park
- Gourmet Coffee Bar & Kitchen
- Pret a Manger
- Tesco Express
- Taxi: Taxi rank is on the right as you exit the main station entrance
- There is step-free access in the whole station. There are also ramps for train access and elevators in the station.
- 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
- Clayton Hotel Cardiff
- Cardiff Marriott Hotel
- Travelodge Cardiff Central
- Waiting rooms location: On platforms 1/2, 3/4, 6/7 and 8.
- Mon - Fri: 05:40 - 21:30
- Sat: 05:40 - 21:30
- Sun: 07:30 - 21:30
- 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
- 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)
- 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.
- Car Park: No
- 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
- 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
- Travelodge
- Storage sheltered: No
- Storage location: to the right of the station front
- Storage CCTV: Yes
- Information available from staff: Yes - from ticket office
- Helpline Contact: 03333 211202
- Passenger Information Systems: Departure screens, Announcements, Arrival screens
- 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.
- Opening hours: Monday, Tuesday, Wednesday, Thursday, Friday 07:30 - 18:30 Saturday 09:30 - 15:30 Sunday Closed
- Car Park: No
- 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
- Travelodge
- Information available from staff: Yes - from ticket office
- Helpline Contact: 03333 211202
- Passenger Information Systems: Departure screens, Arrival screens
- 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
- 6:00 AM - 8:00 PM Monday - Sunday
- Free
- The car park is open 24/7. Access is via Brunel Way.
- The Moon and Spoon
- The Red Lion
- Outside the main entrance.
- Elevators, ramps.
- £0.50
- Holiday Inn Slough - Windsor
- Moxy Slough
- Travelodge Slough
- Located in the main hall
- 36 places, covered
- Enterprise
- Europcar
- Located in the main hall
- Free
- Hall 1: main entrance, platform 1-5 for trains to London and Reading
- Hall 2: ticket office and waiting area
- Train: Great Western Railway services
- Bus: Several local bus services available
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