ON TIMEBOARD
Delta Air Lines / ATL → PHL

DL 2279 on time

Delta Air Lines 2279: Atlanta to Philadelphia at 11:16 a.m.; Philadelphia to Atlanta at 2:31 p.m. (past 12 months). Figures below the title are for ATL → PHL, its busiest leg

On time
84%
233 flights · likely 78–88%
Cancelled
1.7%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+51 min
average delay
Similar flights
85%
DL, same route & hour

About 1 in 6 DL 2279 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (16%); 1.7% were cancelled. The typical flight landed 5 minutes early.

DL 2279: ATL → PHL

Scheduled to leave Atlanta at 11:16 a.m. local time. Over the past year it arrived on time 84% of the time (233 flights), in line with other DL flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%May 2025: 74% on time (31 flights)74MayJun 2025: 63% on time (30 flights)63JunJul 2025: 71% on time (31 flights)71JulAug 2025: too few flights (10 flights)AugJan 2026: 74% on time (27 flights)74JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 74% on time (31 flights)74MarApr 2026: 90% on time (30 flights)90AprMay 2026: 97% on time (31 flights)97MayJun 2026: 89% on time (27 flights)89JunJul 2026: 75% on time (28 flights)75JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday3471%
Tuesday3379%
Wednesday3397%
Thursday3391%
Friday3394%
Saturday3471%
Sunday3385%

Why it was late

Airline (crew, maintenance, ops) 60%Late inbound plane 19%Air traffic & airport (NAS) 17%Severe weather 4%

All flights ATL → PHL · Connecting off DL 2279? Check the risk

DL 2279: PHL → ATL

Scheduled to leave Philadelphia at 2:31 p.m. local time. Over the past year it arrived on time 77% of the time (233 flights), worse than other DL flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%May 2025: 64% on time (25 flights)64MayJun 2025: 57% on time (30 flights)57JunJul 2025: 71% on time (31 flights)71JulAug 2025: too few flights (10 flights)AugJan 2026: 78% on time (27 flights)78JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 68% on time (31 flights)68MarApr 2026: 93% on time (30 flights)93AprMay 2026: 87% on time (31 flights)87MayJun 2026: 74% on time (27 flights)74JunJul 2026: 54% on time (28 flights)54JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday3476%
Tuesday3370%
Wednesday3391%
Thursday3385%
Friday3379%
Saturday3465%
Sunday3376%

Why it was late

Late inbound plane 48%Air traffic & airport (NAS) 27%Airline (crew, maintenance, ops) 23%Severe weather 2%

All flights PHL → ATL · Connecting off DL 2279? Check the risk

Questions

How often is DL 2279 from ATL to PHL late?

Delta Air Lines 2279 from Atlanta, GA to Philadelphia, PA arrived 15 or more minutes late, was diverted or was cancelled on 16% of 233 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.

How often is DL 2279 from PHL to ATL late?

Delta Air Lines 2279 from Philadelphia, PA to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 23% of 233 scheduled flights between September 2025 and August 2026. 1.7% 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.