Flight profile · Delta Air Lines
DL1131
Atlanta (ATL) to Houston (IAH) · scheduled 5:00 PM – 5:30 PM
How DL1131 performs
410 operations, 2024-06-07 to 2026-06-30.
DL1131 arrived on time 65.8% of the time, against 75.7% for all ATL → IAH flights — this specific departure is 9.9 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 10.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 410 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1131 | 65.8% | 1.22% | 3 min | 11.6% | 410 |
| Delta Air Lines on ATL → IAH | 76.6% | 1.49% | -2 min | 7.0% | 7,119 |
| All ATL → IAH flights | 75.7% | 1.65% | -3 min | 8.7% | 13,939 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1131 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 |
|---|---|---|---|
| IAH→ATL Houston to Atlanta | 2024-06-07 – 2026-04-12 | 253 | 74.3% |
| SFO→JFK San Francisco to New York | 2026-01-05 – 2026-03-07 | 60 | — |
| MCO→SLC Orlando to Salt Lake City | 2024-12-19 – 2026-01-04 | 34 | — |
| SLC→MCO Salt Lake City to Orlando | 2024-12-19 – 2026-01-04 | 34 | — |
| FLL→JFK Fort Lauderdale to New York | 2025-11-15 – 2025-12-13 | 5 | — |
| DTW→LGA Detroit to New York | 2025-01-06 – 2025-03-07 | 53 | — |
| MCO→ATL Orlando to Atlanta | 2023-07-01 – 2024-06-06 | 192 | 88.9% |
| SEA→AUS Seattle to Austin | 2024-04-09 – 2024-05-06 | 24 | — |
| LGA→MIA New York to Miami | 2024-01-13 – 2024-03-09 | 8 | — |
| DTW→RDU Detroit to Raleigh–Durham | 2024-01-08 – 2024-03-08 | 50 | — |
| ATL→FLL Atlanta to Fort Lauderdale | 2024-01-07 – 2024-01-07 | 1 | — |
| FLL→ATL Fort Lauderdale to Atlanta | 2024-01-07 – 2024-01-07 | 1 | — |
| LAX→BNA Los Angeles to Nashville | 2023-12-16 – 2024-01-06 | 9 | — |
| ATL→MLB Atlanta to Melbourne | 2023-12-11 – 2023-12-11 | 1 | — |
| MLB→ATL Melbourne to Atlanta | 2023-12-11 – 2023-12-11 | 1 | — |
| LGA→MCO New York to Orlando | 2023-12-10 – 2023-12-10 | 1 | — |
| MCO→LGA Orlando to New York | 2023-12-10 – 2023-12-10 | 1 | — |
| ATL→CLE Atlanta to Cleveland | 2023-10-14 – 2023-11-04 | 3 | — |
| CLE→ATL Cleveland to Atlanta | 2023-10-14 – 2023-11-04 | 3 | — |
| ATL→TLH Atlanta to Tallahassee | 2023-10-28 – 2023-10-31 | 4 | — |
| TLH→ATL Tallahassee to Atlanta | 2023-10-28 – 2023-10-31 | 4 | — |
| ATL→JAN Atlanta to Jackson | 2023-10-09 – 2023-10-27 | 17 | — |
| JAN→ATL Jackson to Atlanta | 2023-10-09 – 2023-10-27 | 17 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1131 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 410 records of DL1131 operating ATL → IAH, 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.