ON TIMEBOARD

DL 309 on time

Delta Air Lines 309: Honolulu to Atlanta at 4:50 p.m. (past 12 months)

On time
79%
365 flights · likely 74–83%
Cancelled
0.8%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+75 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 5 DL 309 flights from Honolulu arrived 15+ minutes late, diverted or cancelled over the past year (21%); 0.8% were cancelled. The typical flight landed 6 minutes early.

DL 309: HNL → ATL

Scheduled to leave Honolulu at 4:50 p.m. local time. Over the past year it arrived on time 79% of the time (365 flights), worse than 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: 87% on time (30 flights)87SepOct 2025: 77% on time (31 flights)77OctNov 2025: 87% on time (30 flights)87NovDec 2025: 65% on time (31 flights)65DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 55% on time (31 flights)55MarApr 2026: 87% on time (30 flights)87AprMay 2026: 94% on time (31 flights)94MayJun 2026: 77% on time (30 flights)77JunJul 2026: 87% on time (31 flights)87JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5381%
Tuesday5283%
Wednesday5275%
Thursday5277%
Friday5277%
Saturday5283%
Sunday5277%

Why it was late

Late inbound plane 64%Airline (crew, maintenance, ops) 20%Air traffic & airport (NAS) 13%Severe weather 2%

All flights HNL → ATL · Connecting off DL 309? Check the risk

Questions

How often is DL 309 from HNL to ATL late?

Delta Air Lines 309 from Honolulu, HI to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 21% of 365 scheduled flights between September 2025 and August 2026. 0.8% 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.