Flight profile · Delta Air Lines
DL2020
Oklahoma City (OKC) to Atlanta (ATL) · scheduled 1:47 PM – 5:05 PM
How DL2020 performs
357 operations, 2025-04-14 to 2026-06-26.
DL2020 arrived on time 84.0% of the time, against 88.1% for all OKC → ATL flights — this specific departure is 4.1 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 357 operations between 2025-04-14 to 2026-06-26
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2020 | 84.0% | 1.12% | -17 min | 4.6% | 357 |
| Delta Air Lines on OKC → ATL | 89.1% | 1.35% | -15 min | 4.0% | 5,189 |
| All OKC → ATL flights | 88.1% | 1.26% | -14 min | 4.3% | 5,859 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-04-14 to 2026-06-26
Other routes DL2020 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 |
|---|---|---|---|
| ATL→OKC Atlanta to Oklahoma City | 2025-04-14 – 2026-06-26 | 348 | 81.4% |
| ATL→MEM Atlanta to Memphis | 2025-12-20 – 2026-01-04 | 15 | — |
| MEM→ATL Memphis to Atlanta | 2025-12-20 – 2026-01-04 | 15 | — |
| CLT→DTW Charlotte to Detroit | 2025-03-09 – 2025-04-13 | 36 | — |
| ATL→CHA Atlanta to Chattanooga | 2024-07-09 – 2024-12-01 | 92 | 83.7% |
| CHA→ATL Chattanooga to Atlanta | 2024-09-09 – 2024-12-01 | 60 | — |
| ATL→CAE Atlanta to Columbia | 2024-10-04 – 2024-10-06 | 2 | — |
| CAE→ATL Columbia to Atlanta | 2024-10-04 – 2024-10-06 | 2 | — |
| SDF→ATL Louisville to Atlanta | 2024-07-08 – 2024-08-04 | 16 | — |
| FLL→ATL Fort Lauderdale to Atlanta | 2024-06-07 – 2024-07-07 | 31 | — |
| ATL→ICT Atlanta to Wichita | 2024-05-07 – 2024-06-06 | 26 | — |
| ICT→ATL Wichita to Atlanta | 2024-05-07 – 2024-06-06 | 26 | — |
| DFW→MSP Dallas–Fort Worth to Minneapolis | 2024-05-11 – 2024-06-01 | 5 | — |
| LAX→MSY Los Angeles to New Orleans | 2024-04-11 – 2024-05-06 | 16 | — |
| MSY→LAX New Orleans to Los Angeles | 2024-04-11 – 2024-05-06 | 16 | — |
| MSP→RDU Minneapolis to Raleigh–Durham | 2023-07-01 – 2024-04-08 | 214 | 87.4% |
| RDU→MSP Raleigh–Durham to Minneapolis | 2023-12-09 – 2024-04-08 | 33 | — |
| ATL→GNV Atlanta to Gainesville | 2024-03-16 – 2024-04-06 | 4 | — |
| DTW→GRR Detroit to Grand Rapids | 2024-01-08 – 2024-03-09 | 60 | — |
| GRR→DTW Grand Rapids to Detroit | 2024-01-08 – 2024-03-09 | 60 | — |
Because the same number has served different journeys, the statistics above describe only the route DL2020 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
28 min late
against a median of 17 min early
Percentiles over 357 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why DL2020 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
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 DL2020 on OKC → 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 OKC → ATL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1158 | Delta Air Lines | 92.5% | 17 min early | 707 |
| DL1184 | Delta Air Lines | 91.7% | 15 min early | 754 |
| DL2490 | Delta Air Lines | 88.9% | 17 min early | 890 |
| DL2862 | Delta Air Lines | 81.8% | 14 min early | 900 |
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 357 records of DL2020 operating OKC → 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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