United Airlines: On-Time Performance & Delay Statistics
Data through May 2026
United Airlines performs about in line with the industry: 80% of flights on time against a national 78%, 1.1% cancelled, and an average delay of 16 minutes when late. That puts it mid-pack — #6 of 15 US reporting carriers.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 16 min
- Cancelled
- 1.1%
- Flights/12mo
- 814,574
- Routes
- 1,128
- Airports
- 133
Monthly on-time trend
United Airlines’s most reliable routes
Where United Airlines flies most
| Route | Flights | On-time | Avg delay |
|---|---|---|---|
| ORD → LGA | 9,126 | 72% | 23 min |
| LGA → ORD | 9,126 | 73% | 24 min |
| ORD → EWR | 8,634 | 72% | 26 min |
| EWR → ORD | 8,629 | 72% | 21 min |
| IAH → ORD | 7,785 | 80% | 15 min |
| ORD → IAH | 7,776 | 79% | 14 min |
| DEN → IAH | 7,718 | 78% | 15 min |
| IAH → DEN | 7,717 | 81% | 14 min |
Airport hubs where this airline operates
Based on 1,587,899 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.