ON TIMEBOARD

DL 1527 on time

Delta Air Lines 1527: Atlanta to West Palm Beach at 9:50 a.m.; West Palm Beach to Atlanta at 12:51 p.m. (past 12 months). Figures below the title are for ATL → PBI, its busiest leg

On time
81%
334 flights · likely 77–85%
Cancelled
1.5%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+50 min
average delay
Similar flights
79%
DL, same route & hour

About 1 in 5 DL 1527 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (19%); 1.5% were cancelled. The typical flight landed 4 minutes early.

DL 1527: ATL → PBI

Scheduled to leave Atlanta at 9:50 a.m. local time. Over the past year it arrived on time 81% of the time (334 flights), in line with other DL flights on the route at that hour (79%). Last seen in the data Jul 31, 2026.

Month by month

40%70%100%Aug 2025: 68% on time (31 flights)68AugSep 2025: 90% on time (30 flights)90SepOct 2025: 87% on time (31 flights)87OctNov 2025: 87% on time (30 flights)87NovDec 2025: 84% on time (31 flights)84DecJan 2026: 58% on time (31 flights)58JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 68% on time (31 flights)68MarApr 2026: 73% on time (30 flights)73AprMay 2026: 94% on time (31 flights)94MayJun 2026: 87% on time (30 flights)87JunJul 2026: 90% on time (31 flights)90Jul

By day of week

DayFlightsOn time
Monday4877%
Tuesday4885%
Wednesday4890%
Thursday4879%
Friday4883%
Saturday4770%
Sunday4785%

Why it was late

Airline (crew, maintenance, ops) 55%Air traffic & airport (NAS) 30%Late inbound plane 13%Severe weather 2%

All flights ATL → PBI · Connecting off DL 1527? Check the risk

DL 1527: PBI → ATL

Scheduled to leave West Palm Beach at 12:51 p.m. local time. Over the past year it arrived on time 76% of the time (334 flights), in line with other DL flights on the route at that hour (73%). Last seen in the data Jul 31, 2026.

Month by month

40%70%100%Aug 2025: 61% on time (31 flights)61AugSep 2025: 93% on time (30 flights)93SepOct 2025: 81% on time (31 flights)81OctNov 2025: 93% on time (30 flights)93NovDec 2025: 68% on time (31 flights)68DecJan 2026: 65% on time (31 flights)65JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 55% on time (31 flights)55MarApr 2026: 60% on time (30 flights)60AprMay 2026: 87% on time (31 flights)87MayJun 2026: 80% on time (30 flights)80JunJul 2026: 71% on time (31 flights)71Jul

By day of week

DayFlightsOn time
Monday4871%
Tuesday4885%
Wednesday4881%
Thursday4867%
Friday4881%
Saturday4772%
Sunday4772%

Why it was late

Late inbound plane 48%Airline (crew, maintenance, ops) 29%Air traffic & airport (NAS) 18%Severe weather 3%Security 2%

All flights PBI → ATL · Connecting off DL 1527? Check the risk

Questions

How often is DL 1527 from ATL to PBI late?

Delta Air Lines 1527 from Atlanta, GA to West Palm Beach/Palm Beach, FL arrived 15 or more minutes late, was diverted or was cancelled on 19% of 334 scheduled flights between September 2025 and August 2026. 1.5% were cancelled.

How often is DL 1527 from PBI to ATL late?

Delta Air Lines 1527 from West Palm Beach/Palm Beach, FL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 24% of 334 scheduled flights between September 2025 and August 2026. 1.8% 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.