Flight profile · Delta Air Lines
DL998
San Antonio (SAT) to Atlanta (ATL) · scheduled 8:00 AM – 11:22 AM
How DL998 performs
398 operations, 2025-03-09 to 2026-06-30.
DL998 arrived on time 91.9% of the time, against 85.1% for all SAT → ATL flights — this specific departure is 6.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.7 points better.
Source: US DOT Bureau of Transportation Statistics · 398 operations between 2025-03-09 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL998 | 91.9% | 0.75% | -10 min | 2.0% | 398 |
| Delta Air Lines on SAT → ATL | 86.2% | 1.29% | -8 min | 4.5% | 7,232 |
| All SAT → ATL flights | 85.1% | 1.16% | -7 min | 4.8% | 9,186 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-03-09 to 2026-06-30
Other routes DL998 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 |
|---|---|---|---|
| MIA→BOS Miami to Boston | 2026-01-05 – 2026-03-07 | 62 | — |
| BOS→MIA Boston to Miami | 2026-02-14 – 2026-03-07 | 4 | — |
| MIA→LGA Miami to New York | 2024-12-21 – 2025-03-08 | 78 | — |
| SFO→ATL San Francisco to Atlanta | 2024-11-11 – 2024-12-18 | 38 | — |
| MCO→DTW Orlando to Detroit | 2024-10-08 – 2024-11-10 | 34 | — |
| LGA→ATL New York to Atlanta | 2024-06-07 – 2024-09-08 | 80 | — |
| ORD→LGA Chicago to New York | 2024-05-07 – 2024-06-06 | 31 | — |
| LGA→ORD New York to Chicago | 2024-05-07 – 2024-06-06 | 27 | — |
| LAX→DTW Los Angeles to Detroit | 2024-04-09 – 2024-05-06 | 28 | — |
| ATL→TPA Atlanta to Tampa | 2024-01-08 – 2024-04-08 | 76 | — |
| TPA→ATL Tampa to Atlanta | 2024-01-08 – 2024-04-08 | 76 | — |
| DFW→LGA Dallas–Fort Worth to New York | 2024-01-13 – 2024-03-09 | 9 | — |
| JFK→SLC New York to Salt Lake City | 2023-12-16 – 2023-12-31 | 16 | — |
| LAS→ATL Las Vegas to Atlanta | 2023-11-05 – 2023-12-15 | 41 | — |
| ATL→LEX Atlanta to Lexington | 2023-11-02 – 2023-11-04 | 3 | — |
| CVG→ATL Cincinnati / Covington to Atlanta | 2023-10-09 – 2023-10-31 | 23 | — |
| BTR→ATL Baton Rouge to Atlanta | 2023-09-11 – 2023-10-08 | 28 | — |
| CLT→ATL Charlotte to Atlanta | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route DL998 currently operates. Blending them would produce an average of two different flights.
Why DL998 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL998 on SAT → ATL. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on SAT → ATL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1073 | Delta Air Lines | 92.8% | 9 min early | 753 |
| DL1066 | Delta Air Lines | 91.2% | 9 min early | 746 |
| DL1676 | Delta Air Lines | 89.0% | 9 min early | 859 |
| DL1465 | Delta Air Lines | 81.0% | 6 min early | 700 |
| DL1408 | Delta Air Lines | 79.5% | 6 min early | 881 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 398 records of DL998 operating SAT → ATL, 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.
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