ON TIMEBOARD

DL 664 on time

Delta Air Lines 664: Atlanta to Orlando at 10:25 a.m.; Orlando to Atlanta at 1:05 p.m. (past 12 months). Figures below the title are for ATL → MCO, its busiest leg

On time
82%
363 flights · likely 78–86%
Cancelled
1.9%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+63 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 6 DL 664 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.9% were cancelled. The typical flight landed 4 minutes early.

DL 664: ATL → MCO

Scheduled to leave Atlanta at 10:25 a.m. local time. Over the past year it arrived on time 82% of the time (363 flights), in line with 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: 96% on time (28 flights)96SepOct 2025: 87% on time (31 flights)87OctNov 2025: 80% on time (30 flights)80NovDec 2025: 81% on time (31 flights)81DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 71% on time (31 flights)71MarApr 2026: 87% on time (30 flights)87AprMay 2026: 74% on time (31 flights)74MayJun 2026: 83% on time (30 flights)83JunJul 2026: 90% on time (31 flights)90JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday5281%
Tuesday5287%
Wednesday5290%
Thursday5281%
Friday5285%
Saturday5275%
Sunday5178%

Why it was late

Airline (crew, maintenance, ops) 60%Air traffic & airport (NAS) 33%Late inbound plane 6%Severe weather 2%

All flights ATL → MCO · Connecting off DL 664? Check the risk

DL 664: MCO → ATL

Scheduled to leave Orlando at 1:05 p.m. local time. Over the past year it arrived on time 77% of the time (363 flights), in line with other DL flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 89% on time (28 flights)89SepOct 2025: 84% on time (31 flights)84OctNov 2025: 73% on time (30 flights)73NovDec 2025: 84% on time (31 flights)84DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 68% on time (28 flights)68FebMar 2026: 87% on time (31 flights)87MarApr 2026: 83% on time (30 flights)83AprMay 2026: 84% on time (31 flights)84MayJun 2026: 83% on time (30 flights)83JunJul 2026: 71% on time (31 flights)71JulAug 2026: 52% on time (31 flights)52Aug

By day of week

DayFlightsOn time
Monday5277%
Tuesday5283%
Wednesday5290%
Thursday5277%
Friday5275%
Saturday5277%
Sunday5163%

Why it was late

Late inbound plane 50%Air traffic & airport (NAS) 24%Airline (crew, maintenance, ops) 21%Severe weather 5%Security 1%

All flights MCO → ATL · Connecting off DL 664? Check the risk

Questions

How often is DL 664 from ATL to MCO late?

Delta Air Lines 664 from Atlanta, GA to Orlando, FL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 363 scheduled flights between September 2025 and August 2026. 1.9% were cancelled.

How often is DL 664 from MCO to ATL late?

Delta Air Lines 664 from Orlando, FL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 23% of 363 scheduled flights between September 2025 and August 2026. 1.9% 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.