BustempoPunctuality archive
Reliability › Line UK042

Line UK042 · London - Cardiff

FlixBus · Bus · 215 km · 9 measured rides between 11 Oct 2026 and 12 Oct 2026 · small sample, treat with caution

A
On time
100%
≤ 5 min late
Median delay
0 min
typical ride
P90 delay
2.7 min
1 in 10 worse than this
Cancelled
0%
0 of 13 rides
Sample
9
rides measured · 13 seen

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On-time share by departure hour

0%50%100%00:00: 100% on time, 1 rides measured002:00: 100% on time, 1 rides measured2406:00: 100% on time, 1 rides measured607:00: 100% on time, 1 rides measured08:00: 100% on time, 1 rides measured81012:00: 100% on time, 1 rides measured1213:00: 100% on time, 1 rides measured14161819:00: 100% on time, 1 rides measured202223:00: 100% on time, 1 rides measured

On-time share by weekday

0%50%100%Monday: 100% on time, 2 rides measuredMonTueWedThuFriSatSunday: 100% on time, 7 rides measuredSun

Last 30 days

0%50%100%11 Oct 2026: 100% on time, median 0 min, 8 measured1112 Oct 2026: 100% on time, median 2.5 min, 1 measured12

Worst day so far: 11 Oct 2026 with 100% on time and a P90 delay of 2.7 min (8 rides).

Average delay at each stop

Mean delay at departure (or arrival at the terminus) across measured calls, both directions combined.

Reading (Mereoak Park and Ride)no actualsBristol Bus Stationno actualsSwindon - Regent Circusno actualsLondon Heathrow Airport (Central …no actualsLondon Victoria Coach Stationno actualsNewport Train StationNewport Train Station: 1.7 min1.7 minCardiff North Road (Friary Garden…Cardiff North Road (Friary Gardens): 2.5 min2.5 minLondon Hammersmith Bridge RoadLondon Hammersmith Bridge Road: 0 min0 min
StopAvg delayCalls measured
Reading (Mereoak Park and Ride)—0 / 1
Bristol Bus Station—0 / 1
Swindon - Regent Circus—0 / 3
London Heathrow Airport (Central Bus Station T2 and T3)—0 / 2
London Victoria Coach Station—0 / 13
Newport Train Station1.7 min5 / 12
Cardiff North Road (Friary Gardens)2.5 min1 / 13
London Hammersmith Bridge Road0 min3 / 6

Directions on this line

RouteOn timeRides
London → Cardiff100%4 / 7
Cardiff → London100%5 / 6