National Express · Bus
Line 509 · London Victoria Coach Station - Cardiff Sophia Gardens
211 km · 0 measured rides between 13 October 2026 and 14 October 2026 · small sample, treat with caution
We have measured 0 rides on line 509 so far, too few for a reliable verdict. The page updates automatically as the archive grows.
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Book this route →On-time share by departure hour
On-time share by weekday
Average delay at each stop
Mean delay at departure (or arrival at the terminus) across measured calls, both directions combined.
| Stop | Avg delay | Calls measured |
|---|---|---|
| London Victoria Coach Station | — | 0 / 4 |
| Cardiff Sophia Gardens | — | 0 / 6 |
| London Victoria Coach Station | — | 0 / 2 |
Directions on this line
| Route | On time | Rides |
|---|---|---|
| London Victoria Coach Station → Cardiff Sophia Gardens | — | 0 / 2 |
| Victoria → Pontcanna | — | 0 / 2 |
| Cardiff Sophia Gardens → London Victoria Coach Station | — | 0 / 1 |
| Pontcanna → Victoria | — | 0 / 1 |
Frequently asked questions
Is National Express line 509 usually late?
— of the 0 rides we measured arrived within 5 minutes of schedule. The median delay was — minutes and the 90th percentile — minutes, so one ride in ten was at least — minutes late.
How do I track line 509 live?
Open the live map and type 509 into the search box. Every vehicle currently running on the line is shown with its position, delay and next stop.
Can I get compensation if my London Victoria Coach Station to Cardiff Sophia Gardens bus is late?
Under Regulation (EU) 181/2011, on scheduled services of 250 km or more a delay of over 120 minutes at departure entitles you to choose between a refund and re-routing; if the carrier does not offer that choice you can claim 50% of the fare on top. Our delay certificate documents what the live feed reported for your ride. Read the guide →
Where does this data come from?
From the operator's public vehicle-tracking feed, which we poll continuously and archive. "Measured" rides are those for which the feed reported actual (not estimated) times. Coverage is partial and figures are only as accurate as the feed.
City pages
Unofficial, independent statistics from public vehicle-tracking data. "On time" means at most 5 minutes late. Coverage is partial; rides without actual times are excluded. Bustempo is an independent, unofficial project. It is not affiliated with, endorsed by or connected to Flix SE, FlixBus, FlixTrain or any other operator. Live data comes from publicly reachable operator endpoints and may be incomplete or delayed.