ON TIMEBOARD
Delta Air Lines / TUL → ATL

DL 2620 on time

Delta Air Lines 2620: Tulsa to Atlanta at 12:41 p.m.; Atlanta to Tulsa at 11:00 a.m. (past 12 months). Figures below the title are for TUL → ATL, its busiest leg

On time
82%
283 flights · likely 77–86%
Cancelled
1.4%
of scheduled flights
Typical arrival
−17 min
median vs schedule
When late
+135 min
average delay
Similar flights
83%
DL, same route & hour

About 1 in 5 DL 2620 flights from Tulsa arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.4% were cancelled. The typical flight landed 17 minutes early.

DL 2620: TUL → ATL

Scheduled to leave Tulsa at 12:41 p.m. local time. Over the past year it arrived on time 82% of the time (283 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: 82% on time (17 flights)82OctNov 2025: 87% on time (30 flights)87NovDec 2025: 79% on time (19 flights)79DecJan 2026: 70% on time (27 flights)70JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 71% on time (28 flights)71MarApr 2026: 90% on time (30 flights)90AprMay 2026: 78% on time (27 flights)78MayJun 2026: 96% on time (23 flights)96JunJul 2026: 83% on time (24 flights)83JulAug 2026: 77% on time (30 flights)77Aug

By day of week

DayFlightsOn time
Monday4379%
Tuesday4279%
Wednesday4393%
Thursday4391%
Friday4384%
Saturday2770%
Sunday4271%

Why it was late

Airline (crew, maintenance, ops) 56%Late inbound plane 38%Air traffic & airport (NAS) 6%

All flights TUL → ATL · Connecting off DL 2620? Check the risk

DL 2620: ATL → TUL

Scheduled to leave Atlanta at 11:00 a.m. local time. Over the past year it arrived on time 83% of the time (279 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Oct 2025: 82% on time (17 flights)82OctNov 2025: 87% on time (30 flights)87NovDec 2025: 79% on time (19 flights)79DecJan 2026: 74% on time (27 flights)74JanFeb 2026: 84% on time (25 flights)84FebMar 2026: 74% on time (27 flights)74MarApr 2026: 87% on time (30 flights)87AprMay 2026: 74% on time (27 flights)74MayJun 2026: 96% on time (23 flights)96JunJul 2026: 92% on time (24 flights)92JulAug 2026: 83% on time (30 flights)83Aug

By day of week

DayFlightsOn time
Monday4379%
Tuesday4281%
Wednesday4393%
Thursday4388%
Friday4386%
Saturday2374%
Sunday4274%

Why it was late

Airline (crew, maintenance, ops) 57%Late inbound plane 26%Air traffic & airport (NAS) 11%Severe weather 6%

All flights ATL → TUL · Connecting off DL 2620? Check the risk

Questions

How often is DL 2620 from TUL to ATL late?

Delta Air Lines 2620 from Tulsa, OK to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 18% of 283 scheduled flights between September 2025 and August 2026. 1.4% were cancelled.

How often is DL 2620 from ATL to TUL late?

Delta Air Lines 2620 from Atlanta, GA to Tulsa, OK arrived 15 or more minutes late, was diverted or was cancelled on 17% of 279 scheduled flights between September 2025 and August 2026. 2.1% 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.