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Delta Air Lines / ATL → GPT

DL 3199 on time

Delta Air Lines 3199: Atlanta to Gulfport at 9:00 a.m.; Gulfport to Atlanta at 10:06 a.m. (past 12 months). Figures below the title are for ATL → GPT, its busiest leg

On time
88%
239 flights · likely 83–91%
Cancelled
2.9%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+70 min
average delay
Similar flights
84%
DL, same route & hour

About 1 in 8 DL 3199 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (12%); 2.9% were cancelled. The typical flight landed 11 minutes early.

DL 3199: ATL → GPT

Scheduled to leave Atlanta at 9:00 a.m. local time. Over the past year it arrived on time 88% of the time (239 flights), better than other DL flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2025: 89% on time (28 flights)89MarApr 2025: 97% on time (30 flights)97AprMay 2025: 87% on time (31 flights)87MayJun 2025: too few flights (7 flights)JunJan 2026: 70% on time (27 flights)70JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 87% on time (31 flights)87MarApr 2026: 90% on time (30 flights)90AprMay 2026: 87% on time (31 flights)87MayJun 2026: 97% on time (30 flights)97JunJul 2026: 87% on time (31 flights)87JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday3583%
Tuesday3488%
Wednesday3497%
Thursday3488%
Friday3497%
Saturday3479%
Sunday3482%

Why it was late

Airline (crew, maintenance, ops) 66%Air traffic & airport (NAS) 17%Late inbound plane 15%Severe weather 3%

All flights ATL → GPT · Connecting off DL 3199? Check the risk

DL 3199: GPT → ATL

Scheduled to leave Gulfport at 10:06 a.m. local time. Over the past year it arrived on time 89% of the time (239 flights), better than other DL flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2025: 82% on time (28 flights)82MarApr 2025: 100% on time (30 flights)100AprMay 2025: 90% on time (31 flights)90MayJun 2025: too few flights (7 flights)JunJan 2026: 67% on time (27 flights)67JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 87% on time (31 flights)87MarApr 2026: 93% on time (30 flights)93AprMay 2026: 94% on time (31 flights)94MayJun 2026: 93% on time (30 flights)93JunJul 2026: 84% on time (31 flights)84JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday3583%
Tuesday3491%
Wednesday3497%
Thursday3488%
Friday34100%
Saturday3479%
Sunday3482%

Why it was late

Late inbound plane 53%Airline (crew, maintenance, ops) 42%Air traffic & airport (NAS) 4%

All flights GPT → ATL · Connecting off DL 3199? Check the risk

Questions

How often is DL 3199 from ATL to GPT late?

Delta Air Lines 3199 from Atlanta, GA to Gulfport/Biloxi, MS arrived 15 or more minutes late, was diverted or was cancelled on 12% of 239 scheduled flights between September 2025 and August 2026. 2.9% were cancelled.

How often is DL 3199 from GPT to ATL late?

Delta Air Lines 3199 from Gulfport/Biloxi, MS to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 11% of 239 scheduled flights between September 2025 and August 2026. 2.9% 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.