ON TIMEBOARD

DL 3178 on time

Delta Air Lines 3178: Atlanta to Gulfport at 9:52 p.m. (past 12 months)

On time
78%
255 flights · likely 73–83%
Cancelled
1.6%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+71 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 5 DL 3178 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (22%); 1.6% were cancelled. The typical flight landed 7 minutes early.

DL 3178: ATL → GPT

Scheduled to leave Atlanta at 9:52 p.m. local time. Over the past year it arrived on time 78% of the time (255 flights), worse than other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Atlanta to Gulfport (100% of days). Delta Air Lines's last ATL–GPT flight was cancelled 1.9% of the time, against 1.4% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 9:00 a.m. the next morning.

Month by month

40%70%100%Apr 2025: 83% on time (30 flights)83AprMay 2025: 65% on time (31 flights)65MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 84% on time (31 flights)84JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 77% on time (31 flights)77MarApr 2026: 83% on time (30 flights)83AprMay 2026: 74% on time (31 flights)74MayJun 2026: 87% on time (30 flights)87JunJul 2026: 55% on time (31 flights)55JulAug 2026: 84% on time (31 flights)84Aug

By day of week

DayFlightsOn time
Monday3784%
Tuesday3692%
Wednesday3678%
Thursday3661%
Friday3669%
Saturday3784%
Sunday3778%

Why it was late

Airline (crew, maintenance, ops) 50%Late inbound plane 33%Air traffic & airport (NAS) 9%Severe weather 8%

All flights ATL → GPT · Connecting off DL 3178? Check the risk

Questions

How often is DL 3178 from ATL to GPT late?

Delta Air Lines 3178 from Atlanta, GA to Gulfport/Biloxi, MS arrived 15 or more minutes late, was diverted or was cancelled on 22% of 255 scheduled flights between September 2025 and August 2026. 1.6% 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.