LEAGUE TABLE · MAY 2026
Delay league — long-haul (over 3,500 km)
London Heathrow → New York Newark was the most disruption-prone route in this ranking in May 2026: 2.5% of its flights arrived 3 or more hours late and 1.8% were cancelled, across 274 flights in official UK CAA data.
Every tracked UK route in the long-haul (over 3,500 km) distance band, ranked by disruption rate in May 2026. These routes all pay the same fixed UK261 amount.
HOW A ROUTE QUALIFIES
14 routes in this band met the sample-size floor this month. Full methodology →
Ranked by disruption rate
| # | Route | Flights | 3h+ late | Cancelled | Avg delay |
|---|---|---|---|---|---|
| 1 | LHR → EWRLondon Heathrow → New York Newark | 274 | 2.5% | 1.8% | 18 min |
| 2 | LHR → BOSLondon Heathrow → Boston | 229 | 2.6% | 0.9% | 16 min |
| 3 | LHR → MIALondon Heathrow → Miami | 174 | 1.1% | 2.2% | 16 min |
| 4 | LHR → BOMLondon Heathrow → Mumbai | 237 | 0.8% | 2.1% | 18 min |
| 5 | LHR → JFKLondon Heathrow → New York JFK | 688 | 0.8% | 1.9% | 15 min |
| 6 | LHR → IADLondon Heathrow → Washington Dulles | 184 | 1.6% | 1.1% | 21 min |
| 7 | LHR → ORDLondon Heathrow → Chicago O'Hare | 274 | 0.4% | 1.8% | 12 min |
| 8 | LHR → YYZLondon Heathrow → Toronto Pearson | 203 | 1.5% | 0.5% | 19 min |
| 9 | LHR → DELLondon Heathrow → Delhi | 288 | 0.3% | 1.4% | 22 min |
| 10 | LHR → LAXLondon Heathrow → Los Angeles | 279 | 0.3% | 1.1% | 14 min |
| 11 | LHR → HKGLondon Heathrow → Hong Kong | 182 | 0% | 1.1% | 16 min |
| 12 | LHR → SFOLondon Heathrow → San Francisco | 217 | 0.9% | 0% | 13 min |
| 13 | LHR → DOHLondon Heathrow → Doha | 185 | 0% | 0.5% | 7 min |
| 14 | LHR → DXBLondon Heathrow → Dubai | 186 | 0% | 0% | 9 min |
Delay statistics derived from UK Civil Aviation Authority (CAA) punctuality data. UK CAA flight punctuality statistics · May 2026. Not affiliated with or endorsed by the CAA. How we calculate these figures →
By month
By distance band
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Delay statistics derived from UK Civil Aviation Authority (CAA) punctuality data. UK CAA flight punctuality statistics · May 2026. Not affiliated with or endorsed by the CAA. How we calculate these figures →
UK261 amounts & eligibility rules last verified 8 July 2026 against gov.uk and CAA guidance by Mohammed Arafat Khot · about this site