ON TIMEBOARD

DL 1510 on time

Delta Air Lines 1510: Miami to Atlanta at 12:00 p.m.; Atlanta to Miami at 8:55 a.m. (past 12 months). Figures below the title are for MIA → ATL, its busiest leg

On time
82%
365 flights · likely 78–86%
Cancelled
1.9%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+69 min
average delay
Similar flights
81%
DL, same route & hour

About 1 in 6 DL 1510 flights from Miami arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.9% were cancelled. The typical flight landed 8 minutes early.

DL 1510: MIA → ATL

Scheduled to leave Miami at 12:00 p.m. local time. Over the past year it arrived on time 82% of the time (365 flights), in line with other DL flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 97% on time (30 flights)97SepOct 2025: 87% on time (31 flights)87OctNov 2025: 67% on time (30 flights)67NovDec 2025: 61% on time (31 flights)61DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 84% on time (31 flights)84MarApr 2026: 87% on time (30 flights)87AprMay 2026: 90% on time (31 flights)90MayJun 2026: 90% on time (30 flights)90JunJul 2026: 81% on time (31 flights)81JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5387%
Tuesday5288%
Wednesday5283%
Thursday5283%
Friday5277%
Saturday5275%
Sunday5281%

Why it was late

Airline (crew, maintenance, ops) 46%Late inbound plane 36%Air traffic & airport (NAS) 17%Severe weather 2%

All flights MIA → ATL · Connecting off DL 1510? Check the risk

DL 1510: ATL → MIA

Scheduled to leave Atlanta at 8:55 a.m. local time. Over the past year it arrived on time 81% of the time (365 flights), in line with other DL flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 97% on time (30 flights)97SepOct 2025: 87% on time (31 flights)87OctNov 2025: 70% on time (30 flights)70NovDec 2025: 68% on time (31 flights)68DecJan 2026: 68% on time (31 flights)68JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 81% on time (31 flights)81MarApr 2026: 73% on time (30 flights)73AprMay 2026: 87% on time (31 flights)87MayJun 2026: 93% on time (30 flights)93JunJul 2026: 84% on time (31 flights)84JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5374%
Tuesday5288%
Wednesday5290%
Thursday5283%
Friday5279%
Saturday5277%
Sunday5279%

Why it was late

Airline (crew, maintenance, ops) 50%Air traffic & airport (NAS) 45%Late inbound plane 4%Severe weather 1%

All flights ATL → MIA · Connecting off DL 1510? Check the risk

Questions

How often is DL 1510 from MIA to ATL late?

Delta Air Lines 1510 from Miami, FL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 18% of 365 scheduled flights between September 2025 and August 2026. 1.9% were cancelled.

How often is DL 1510 from ATL to MIA late?

Delta Air Lines 1510 from Atlanta, GA to Miami, FL arrived 15 or more minutes late, was diverted or was cancelled on 19% of 365 scheduled flights between September 2025 and August 2026. 2.5% 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.