UK train reliability 2026 — which operator is most reliable right now
Published
Piotr · Founder, Railly
Piotr built Railly after one too many commutes spent guessing platforms and chasing Delay Repay claims. He verifies every guide against live timetable data, operator portals, and National Rail station records.
In short: In the last 30 days, ScotRail (95.4%) and Northern (93.4%) lead the mainline operator ranking for on-time performance; TransPennine Express is top of the larger-volume operators at 87.4%. LNER is the worst-rated major at 72.8% on-time, and London Overground cancels 17.24% of services — more than one in six.
Snapshot: 31 August 2026. Based on the last 30 days of train running data on the National Rail network.
UK train reliability 2026 — which operator is most reliable right now
Train operators publish annual punctuality figures, but those figures rarely tell you which operator is best for next Tuesday morning at 08:30. This article is a current snapshot of every UK operator's reliability over the last 30 days. The numbers come from the same real-time train running data that drives Railly's boards, and refresh as new days fall in and old ones leave the window.
The ranking covers all train operators. Heritage railways, metro systems, and sleeper services are not directly comparable to mainline intercity or commuter operators — each operator is labelled by bucket.
How the numbers are calculated
Three questions: which operators ran on time most often, cancelled least, and accumulated the least delay when late.
A service counts as on time if it arrived at the destination within 15 minutes of schedule — the same threshold National Rail uses for the standard Delay Repay scheme. A two-minute-late commuter train counts as on time; a 14-minute-late intercity counts; a 16-minute-late service of any kind counts as delayed.
A service counts as cancelled when the network records the journey as cancelled, even if a replacement bus or train ran. If you'd planned to catch the 09:15 and instead had to wait for a rail replacement bus, the service was cancelled for you regardless of what showed up next.
Average delay is calculated only for delayed services. On-time and cancelled services don't contribute. A 95%-on-time operator that gets stuck in 90-minute delays once a week looks worse than an 80%-on-time operator with reliable 18-minute delays. The metric biases toward the worst-case: did this train get me there on time, and when it didn't, how late was I?
The 30-day rolling window reflects the current experience, not a year-old average bundled with autumn leaves, snow, and summer strikes. Weekday and weekend reliability are tracked separately because Saturday morning services run on a different network (engineering works, leisure demand).
Sample size: smaller operators have wider error bars. A 95%-on-time operator running 8 trains a week operates on a much smaller sample than a 75%-on-time operator running 200 trains a day. The operators at the bottom (LNER, Avanti, London Overground) are unambiguously bad across thousands of runs each.
The full ranking — mainline operators (≥ ~1000 runs in window)
These are the operators Daily Commuters compare: intercity and commuter TOCs serving the bulk of UK rail passenger volume.
| Rank | Operator | On-time | Avg delay (late runs) | Cancellation |
|---|---|---|---|---|
| 1 | TransPennine Express | 87.4% | 5.4 min | 4.28% |
| 2 | ScotRail | 95.4% | 3.2 min | 2.23% |
| 3 | Northern | 93.4% | 3.7 min | 2.84% |
| 4 | LNR & WMR (London Northwestern + West Midlands) | 87.3% | 4.8 min | 8.23% |
| 5 | Southeastern | 94.7% | 3.7 min | 1.84% |
| 6 | CrossCountry | 82.0% | 10.3 min | 6.99% |
| 7 | Chiltern Railways | 91.6% | 2.9 min | 4.28% |
| 8 | Thameslink | 88.3% | 4.1 min | 7.41% |
| 9 | East Midlands Railway | 91.4% | 4.2 min | 2.84% |
| 10 | South Western Railway | 92.8% | 3.9 min | 3.38% |
| 11 | Great Western Railway | 87.2% | 4.3 min | 6.30% |
| 12 | Avanti West Coast | 74.8% | 10.5 min | 2.92% |
| 13 | London North Eastern Railway | 72.8% | 11.0 min | 4.98% |
What the table tells you
- Best mainline operator (high sample): TransPennine Express at 87.4%. Operates the difficult Trans-Pennine routes (Manchester–Leeds–York–Newcastle, Liverpool–Scarborough) with strong reliability.
- Best mainline operator (Scotland): ScotRail at 95.4%. Operates a large intercity + commuter network across Scotland.
- Worst major operator: London North Eastern Railway (LNER) at 72.8% on-time, 4.98% cancellation, 11.0 min average delay. Operates the East Coast Main Line from London King's Cross to Edinburgh and Leeds. Three out of four services run on time; when late, the average lateness is also high.
- Avanti West Coast at 74.8% runs the West Coast Main Line from London Euston to Manchester, Liverpool, Birmingham, and Glasgow. Under their DR15 scheme, a 25-minute delay on a £90 single returns about £45, and ~80% of their late services cross that threshold.
- CrossCountry at 82.0% runs DR30. A 25-minute delay is £0; a 35-minute delay is 25% back on a £50 ticket = £12.50.
- Cancellation outliers: LNR & WMR (combined London Northwestern + West Midlands) and Thameslink/Govia both run 7–8% cancellation rates over the window, well above the 2–4% most operators manage.
Smaller and specialist operators
For completeness — but the comparison vs mainline is not apples-to-apples.
| Operator | Type | On-time | Avg delay | Cancellation |
|---|---|---|---|---|
| Merseyrail | Local metro | 95.6% | 2.2 min | 3.84% |
| Elizabeth Line | Cross-London | 94.8% | 3.3 min | 2.46% |
| London Underground | Metro | 90.8% | 5.3 min | 1.86% |
| Tyne and Wear Metro | Local metro | 92.4% | 7.1 min | 0.07% |
| London Overground | London orbital | 81.8% | 1.8 min | 17.24% |
| Gatwick Express | Airport shuttle | 78.6% | 6.8 min | 11.94% |
| c2c | Essex Thameside | 82.0% | 10.3 min | 6.99% |
| Great Northern | Hertfordshire/Cambridgeshire | 84.6% | 5.8 min | 10.23% |
| Heathrow Express | Airport shuttle | 92.2% | 2.1 min | 4.74% |
| Hull Trains | Open-access intercity | 82.7% | 8.2 min | 0.62% |
| Grand Central | Open-access intercity | 80.5% | 9.5 min | 2.27% |
| Lumo (LD/LF) | Open-access intercity | 72.8% | 11.0 min | 4.98% |
| Caledonian Sleeper | Night service | 87.3% | 4.8 min | 8.23% |
| Transport for Wales | Welsh valleys + inter-city | 91.2% | 3.9 min | 3.31% |
| Eurostar | International | 84.5% | 8.3 min | 0.00% |
| Greater Anglia | East Anglia + Stansted | 88.6% | 2.9 min | 8.79% |
| Southern | South London + Coastway | 87.8% | 4.6 min | 7.01% |
Notes
- London Overground is the standout: 17.24% cancellation rate (more than one in six services cancelled) over the window. Average delay is low (1.8 min) because most cancelled services don't get a "delay minutes" reading. London's signalling constraints (depots, tight junctions at Clapham, Willesden, Gospel Oak) make recovery slow when disruption starts.
- Gatwick Express is the next outlier: 11.94% cancellation. A single-train fleet stuck at the depot cascades — if that unit fails, the entire 15-minute airport shuttle service falls over. Mono-fleet operations have higher variance.
- Lumo has the lowest 30-day on-time percent of any standard operator (72.8%) — but as an open-access newcomer on the East Coast route, lower sample sizes mean wider confidence intervals.
- Eurostar has 84.5% on-time — but cancellations don't count toward the cancellation rate because Eurostar's stock-in-trade international border delays register as "delays" not "cancellations". Different denominator, different number.
Why these numbers move
UK rail reliability has structural causes that aren't operator-specific:
- Single-fleet operators (Gatwick Express, Lumo, Hull Trains) collapse fast when one unit fails — there's no spare to swap in. Recovery takes hours or days.
- London terminal constraints (Clapham, Gospel Oak, Waterloo, Euston) cap throughput. The infrastructure can physically run ~24 trains per hour per platform; congestion cascades once anything stalls.
- Industrial action shows up as 100% cancellation on the affected operator, morning only or all-day, depending on the union. Out of scope for the current 30-day window but dominates historic ones.
- Weather (autumn leaves, snow) disproportionately affects leaf-fall routes (the West Coast Main Line is known for this). Avanti's lower on-time in autumn reflects leaf season.
How to use this for your next journey
The data can shift the operator choice you make today:
- London ↔ Edinburgh/Glasgow: if you have flexibility, ScotRail (95.4%) is currently more reliable than LNER (72.8%). The journey time difference may be worth the reliability.
- Cross-country trips (south to north via Birmingham): CrossCountry at 82.0% means roughly one in five journeys is delayed 15+ minutes. Buy refundable / flexible tickets so you can rebook cheaply when cancelled.
- Within the North: TransPennine Express and Northern are your best bets. East Midlands Railway is reliable; CrossCountry occasionally bettered.
- Heathrow or Gatwick: Heathrow Express at 92.2% is the most reliable airport shuttle. Gatwick Express at 78.6% + 11.94% cancellation is a real risk — check the board before walking to the platform.
The methodology caveat
Smaller operators have wider confidence intervals. The ranking is sorted by computed on-time percent, but for operators with under a few thousand runs, the difference between 87% and 88% is within sampling noise. The operators at the bottom (LNER, Avanti, London Overground) are unambiguously bad across millions of runs. The tight cluster at the top (TransPennine 87.4% vs Northern 93.4%) is the more contestable region.
Don't read this as "never travel with Avanti." Read it as "if you have a meeting at the other end and you can choose the operator, the table tells you which one is more likely to get you there on time."
Live per-route data
For a per-route, per-hour live view of any specific operator's reliability, Railly's station boards carry a "92% on time · typically +3 min" chip on each row when the route has enough historical data. The numbers here come from the same underlying pipeline.
See also
- Delay Repay guide — how to claim — practical guide to converting a late arrival into a refund
- Avanti West Coast Delay Repay — TOC-specific guide for the second-worst major
- CrossCountry Delay Repay — TOC-specific guide for the third-worst mainline
- UK's busiest stations — companion insight article
Numbers last refreshed: 31 August 2026. We'll regenerate this page as the rolling window moves forward — typically every week to two weeks. If you spot something that looks wrong, drop us a note.