ON TIMEBOARD

DL 2020 on time

Delta Air Lines 2020: Oklahoma City to Atlanta at 2:32 p.m.; Atlanta to Oklahoma City at 12:20 p.m. (past 12 months). Figures below the title are for OKC → ATL, its busiest leg

On time
83%
307 flights · likely 78–87%
Cancelled
1.3%
of scheduled flights
Typical arrival
−18 min
median vs schedule
When late
+64 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 6 DL 2020 flights from Oklahoma City arrived 15+ minutes late, diverted or cancelled over the past year (17%); 1.3% were cancelled. The typical flight landed 18 minutes early.

DL 2020: OKC → ATL

Scheduled to leave Oklahoma City at 2:32 p.m. local time. Over the past year it arrived on time 83% of the time (307 flights), in line with other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 94% on time (18 flights)94SepOct 2025: 90% on time (30 flights)90OctNov 2025: 70% on time (23 flights)70NovDec 2025: 74% on time (19 flights)74DecJan 2026: 78% on time (27 flights)78JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 89% on time (28 flights)89MarApr 2026: 92% on time (26 flights)92AprMay 2026: 84% on time (25 flights)84MayJun 2026: 80% on time (25 flights)80JunJul 2026: 63% on time (27 flights)63JulAug 2026: 84% on time (31 flights)84Aug

By day of week

DayFlightsOn time
Monday4785%
Tuesday4687%
Wednesday4687%
Thursday4693%
Friday4678%
Saturday2962%
Sunday4779%

Why it was late

Late inbound plane 56%Airline (crew, maintenance, ops) 23%Air traffic & airport (NAS) 20%Severe weather 1%

All flights OKC → ATL · Connecting off DL 2020? Check the risk

DL 2020: ATL → OKC

Scheduled to leave Atlanta at 12:20 p.m. local time. Over the past year it arrived on time 82% of the time (298 flights), in line with other DL flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 94% on time (18 flights)94SepOct 2025: 87% on time (30 flights)87OctNov 2025: 71% on time (28 flights)71NovDec 2025: 68% on time (19 flights)68DecJan 2026: too few flights (13 flights)JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 82% on time (28 flights)82MarApr 2026: 96% on time (26 flights)96AprMay 2026: 88% on time (25 flights)88MayJun 2026: 84% on time (25 flights)84JunJul 2026: 67% on time (27 flights)67JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday4678%
Tuesday4591%
Wednesday4582%
Thursday4589%
Friday4580%
Saturday2763%
Sunday4580%

Why it was late

Airline (crew, maintenance, ops) 65%Late inbound plane 24%Air traffic & airport (NAS) 10%Security 1%Severe weather 1%

All flights ATL → OKC · Connecting off DL 2020? Check the risk

Questions

How often is DL 2020 from OKC to ATL late?

Delta Air Lines 2020 from Oklahoma City, OK to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 17% of 307 scheduled flights between September 2025 and August 2026. 1.3% were cancelled.

How often is DL 2020 from ATL to OKC late?

Delta Air Lines 2020 from Atlanta, GA to Oklahoma City, OK arrived 15 or more minutes late, was diverted or was cancelled on 18% of 298 scheduled flights between September 2025 and August 2026. 1.0% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.