ON TIMEBOARD

DL 504 on time

Delta Air Lines 504: Orlando to Los Angeles at 9:45 a.m. (past 12 months)

On time
90%
365 flights · likely 86–93%
Cancelled
1.4%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+89 min
average delay
Similar flights
90%
DL, same route & hour

About 1 in 10 DL 504 flights from Orlando arrived 15+ minutes late, diverted or cancelled over the past year (10%); 1.4% were cancelled. The typical flight landed 14 minutes early.

DL 504: MCO → LAX

Scheduled to leave Orlando at 9:45 a.m. local time. Over the past year it arrived on time 90% of the time (365 flights), in line with other DL flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 84% on time (31 flights)84OctNov 2025: 97% on time (30 flights)97NovDec 2025: 87% on time (31 flights)87DecJan 2026: 84% on time (31 flights)84JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 97% on time (31 flights)97MarApr 2026: 83% on time (30 flights)83AprMay 2026: 94% on time (31 flights)94MayJun 2026: 100% on time (30 flights)100JunJul 2026: 90% on time (31 flights)90JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday5383%
Tuesday5294%
Wednesday5294%
Thursday5285%
Friday5294%
Saturday5294%
Sunday5285%

Why it was late

Airline (crew, maintenance, ops) 65%Air traffic & airport (NAS) 21%Late inbound plane 14%

All flights MCO → LAX · Connecting off DL 504? Check the risk

Questions

How often is DL 504 from MCO to LAX late?

Delta Air Lines 504 from Orlando, FL to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 10% of 365 scheduled flights between September 2025 and August 2026. 1.4% 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.