Flight profile · Delta Air Lines
DL1503
Salt Lake City (SLC) to Spokane (GEG) · scheduled 3:30 PM – 4:18 PM
How DL1503 performs
388 operations, 2024-06-07 to 2026-06-30.
DL1503 arrived on time 81.7% of the time, against 86.7% for all SLC → GEG flights — this specific departure is 5.1 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 388 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1503 | 81.7% | 1.55% | -8 min | 6.5% | 388 |
| Delta Air Lines on SLC → GEG | 84.9% | 0.58% | -9 min | 5.1% | 3,641 |
| All SLC → GEG flights | 86.7% | 0.44% | -9 min | 4.4% | 5,004 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1503 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 |
|---|---|---|---|
| GEG→SLC Spokane to Salt Lake City | 2024-06-07 – 2026-06-30 | 383 | 83.8% |
| ATL→CVG Atlanta to Cincinnati / Covington | 2026-04-13 – 2026-05-06 | 24 | — |
| JFK→SFO New York to San Francisco | 2026-03-08 – 2026-04-11 | 34 | — |
| DTW→IAH Detroit to Houston | 2026-02-12 – 2026-03-06 | 20 | — |
| CHO→ATL Charlottesville to Atlanta | 2026-01-20 – 2026-02-11 | 23 | — |
| ATL→CHO Atlanta to Charlottesville | 2026-01-20 – 2026-02-11 | 23 | — |
| CMH→DTW Columbus to Detroit | 2026-01-10 – 2026-01-17 | 2 | — |
| DTW→CMH Detroit to Columbus | 2026-01-10 – 2026-01-17 | 2 | — |
| DTW→SJU Detroit to San Juan | 2025-12-20 – 2026-01-05 | 17 | — |
| SJU→DTW San Juan to Detroit | 2025-12-20 – 2026-01-05 | 17 | — |
| BIS→MSP Bismarck to Minneapolis | 2025-04-19 – 2025-05-03 | 3 | — |
| MSP→BIS Minneapolis to Bismarck | 2025-04-19 – 2025-05-03 | 3 | — |
| PNS→ATL Pensacola to Atlanta | 2025-03-10 – 2025-04-13 | 35 | — |
| ATL→MIA Atlanta to Miami | 2025-03-02 – 2025-03-02 | 1 | — |
| MIA→ATL Miami to Atlanta | 2025-03-02 – 2025-03-02 | 1 | — |
| SAN→SLC San Diego to Salt Lake City | 2024-05-07 – 2024-06-06 | 26 | — |
| MSN→DTW Madison to Detroit | 2024-05-11 – 2024-05-11 | 1 | — |
| JAX→JFK Jacksonville to New York | 2024-04-09 – 2024-05-06 | 28 | — |
| JFK→JAX New York to Jacksonville | 2024-04-09 – 2024-05-06 | 28 | — |
| LAS→SLC Las Vegas to Salt Lake City | 2024-03-10 – 2024-04-08 | 30 | — |
| SLC→LAS Salt Lake City to Las Vegas | 2024-03-10 – 2024-04-08 | 30 | — |
| MSP→FCA Minneapolis to Kalispell | 2024-01-08 – 2024-03-09 | 62 | — |
| BOS→MIA Boston to Miami | 2024-01-01 – 2024-01-07 | 5 | — |
| JAC→MSP Jackson to Minneapolis | 2023-12-16 – 2024-01-06 | 8 | — |
| MSP→JAC Minneapolis to Jackson | 2023-12-16 – 2024-01-06 | 8 | — |
| SLC→AUS Salt Lake City to Austin | 2023-07-01 – 2023-12-15 | 132 | 81.8% |
Because the same number has served different journeys, the statistics above describe only the route DL1503 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 388 records of DL1503 operating SLC → GEG, 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.