ON TIMEBOARD

DL 1552 on time

Delta Air Lines 1552: Raleigh to Atlanta at 5:20 a.m. (past 12 months)

On time
92%
211 flights · likely 88–95%
Cancelled
2.8%
of scheduled flights
Typical arrival
−12 min
median vs schedule
When late
+134 min
average delay
Similar flights
93%
DL, same route & hour

About 1 in 13 DL 1552 flights from Raleigh arrived 15+ minutes late, diverted or cancelled over the past year (8%); 2.8% were cancelled. The typical flight landed 12 minutes early.

DL 1552: RDU → ATL

Scheduled to leave Raleigh at 5:20 a.m. local time. Over the past year it arrived on time 92% of the time (211 flights), in line with other DL flights on the route at that hour (93%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 97% on time (30 flights)97AprMay 2025: 100% on time (31 flights)100MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 88% on time (17 flights)88JanFeb 2026: too few flights (11 flights)FebMar 2026: 81% on time (21 flights)81MarApr 2026: 96% on time (28 flights)96AprMay 2026: 94% on time (31 flights)94MayJun 2026: 90% on time (30 flights)90JunJul 2026: 100% on time (30 flights)100JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday3291%
Tuesday3194%
Wednesday3187%
Thursday3093%
Friday3093%
Saturday2696%
Sunday3194%

Why it was late

Airline (crew, maintenance, ops) 94%Air traffic & airport (NAS) 6%

All flights RDU → ATL · Connecting off DL 1552? Check the risk

Questions

How often is DL 1552 from RDU to ATL late?

Delta Air Lines 1552 from Raleigh/Durham, NC to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 8% of 211 scheduled flights between September 2025 and August 2026. 2.8% 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.