Flight profile · Delta Air Lines
DL634
Detroit (DTW) to Los Angeles (LAX) · scheduled 12:30 PM – 2:46 PM
How DL634 performs
500 operations, 2025-01-08 to 2026-06-30.
DL634 arrived on time 82.9% of the time, against 81.2% for all DTW → LAX flights — this specific departure is 1.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 2.5 points better.
Source: US DOT Bureau of Transportation Statistics · 500 operations between 2025-01-08 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL634 | 82.9% | 0.40% | -7 min | 5.0% | 500 |
| Delta Air Lines on DTW → LAX | 80.4% | 0.62% | -7 min | 6.0% | 5,973 |
| All DTW → LAX flights | 81.2% | 0.67% | -9 min | 5.9% | 8,098 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-01-08 to 2026-06-30
Other routes DL634 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 |
|---|---|---|---|
| ONT→SLC Ontario to Salt Lake City | 2025-12-20 – 2026-01-03 | 11 | — |
| SLC→ONT Salt Lake City to Ontario | 2025-12-20 – 2026-01-03 | 11 | — |
| RSW→LGA Fort Myers to New York | 2025-12-24 – 2026-01-01 | 4 | — |
| DTW→PDX Detroit to Portland | 2024-06-07 – 2025-05-06 | 85 | — |
| DCA→ATL Washington to Atlanta | 2024-11-11 – 2024-12-18 | 38 | — |
| PDX→DTW Portland to Detroit | 2024-06-07 – 2024-10-25 | 44 | — |
| DTW→MCO Detroit to Orlando | 2024-05-07 – 2024-06-06 | 31 | — |
| MCO→DTW Orlando to Detroit | 2024-05-07 – 2024-06-06 | 31 | — |
| SAV→ATL Savannah to Atlanta | 2024-04-09 – 2024-05-06 | 28 | — |
| SEA→SLC Seattle to Salt Lake City | 2023-12-16 – 2024-04-08 | 53 | — |
| JFK→LAX New York to Los Angeles | 2024-01-15 – 2024-03-08 | 21 | — |
| BOS→LAX Boston to Los Angeles | 2024-01-08 – 2024-01-08 | 1 | — |
| ATL→MKE Atlanta to Milwaukee | 2023-11-05 – 2023-12-15 | 41 | — |
| MKE→ATL Milwaukee to Atlanta | 2023-12-07 – 2023-12-15 | 9 | — |
| ATL→SJU Atlanta to San Juan | 2023-09-05 – 2023-11-04 | 61 | — |
| SJU→ATL San Juan to Atlanta | 2023-09-05 – 2023-11-04 | 61 | — |
| DEN→LGA Denver to New York | 2023-07-01 – 2023-09-04 | 57 | — |
Because the same number has served different journeys, the statistics above describe only the route DL634 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 500 records of DL634 operating DTW → LAX, 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.