Flight profile · United Airlines
UA587
Santa Ana (SNA) to Chicago (ORD) · scheduled 6:45 AM – 1:09 PM
How UA587 performs
101 operations, 2026-03-05 to 2026-06-30.
UA587 arrived on time 86.5% of the time, against 81.2% for all SNA → ORD flights — this specific departure is 5.3 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 2.5 points better.
Source: US DOT Bureau of Transportation Statistics · 101 operations between 2026-03-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA587 | 86.5% | 0.99% | -9 min | 1.0% | 101 |
| United Airlines on SNA → ORD | 83.9% | 0.36% | -8 min | 4.6% | 3,372 |
| All SNA → ORD flights | 81.2% | 0.64% | -8 min | 6.4% | 6,534 |
Source: FlyerIntel analysis of US DOT BTS data · 2026-03-05 to 2026-06-30
Other routes UA587 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ORD→IND Chicago to Indianapolis | 2026-05-21 – 2026-06-30 | 41 | — |
| IND→EWR Indianapolis to Newark | 2026-05-21 – 2026-05-22 | 2 | — |
| ORD→IAD Chicago to Washington | 2025-02-13 – 2026-05-20 | 318 | 72.3% |
| RSW→ORD Fort Myers to Chicago | 2026-03-29 – 2026-03-29 | 1 | — |
| IAD→DEN Washington to Denver | 2026-03-05 – 2026-03-28 | 18 | — |
| SMF→ORD Sacramento to Chicago | 2025-12-18 – 2026-03-04 | 77 | — |
| ORD→EWR Chicago to Newark | 2026-02-12 – 2026-03-04 | 21 | — |
| AUS→ORD Austin to Chicago | 2025-12-02 – 2025-12-17 | 16 | — |
| IAH→AUS Houston to Austin | 2025-09-25 – 2025-10-25 | 31 | — |
| SFO→ORD San Francisco to Chicago | 2025-03-06 – 2025-09-24 | 199 | 89.6% |
| IAD→ATL Washington to Atlanta | 2025-03-06 – 2025-03-28 | 17 | — |
| PBI→EWR West Palm Beach to Newark | 2025-02-16 – 2025-03-02 | 3 | — |
| EWR→ORD Newark to Chicago | 2025-01-07 – 2025-02-12 | 37 | — |
| DCA→ORD Washington to Chicago | 2024-05-23 – 2025-01-06 | 183 | 91.6% |
| IAD→EWR Washington to Newark | 2024-12-03 – 2024-12-18 | 16 | — |
| GRR→ORD Grand Rapids to Chicago | 2024-10-05 – 2024-10-26 | 4 | — |
| ORD→AUS Chicago to Austin | 2024-10-17 – 2024-10-21 | 4 | — |
| IAH→SAT Houston to San Antonio | 2024-03-07 – 2024-05-22 | 77 | — |
| EWR→DTW Newark to Detroit | 2024-02-15 – 2024-03-06 | 18 | — |
| IAH→MSP Houston to Minneapolis | 2024-02-17 – 2024-02-17 | 1 | — |
| IAH→LAX Houston to Los Angeles | 2024-01-09 – 2024-02-14 | 37 | — |
| SFO→PSP San Francisco to Palm Springs | 2023-09-29 – 2024-01-08 | 102 | 94.1% |
| PSP→IAH Palm Springs to Houston | 2023-11-28 – 2023-12-20 | 23 | — |
| SEA→SFO Seattle to San Francisco | 2023-11-28 – 2023-12-20 | 23 | — |
| PSP→DEN Palm Springs to Denver | 2023-09-05 – 2023-11-27 | 83 | — |
| ONT→SFO Ontario to San Francisco | 2023-09-30 – 2023-10-28 | 26 | — |
| DCA→SFO Washington to San Francisco | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA587 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 101 records of UA587 operating SNA → ORD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.