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Delta Air Lines / RDU → IND

DL 4780 on time

Delta Air Lines 4780: Raleigh to Indianapolis at 11:58 a.m.; Indianapolis to Raleigh at 2:35 p.m. (past 12 months). Figures below the title are for RDU → IND, its busiest leg

On time
77%
239 flights · likely 72–82%
Cancelled
2.1%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+77 min
average delay
Similar flights
79%
DL, same route & hour

About 1 in 4 DL 4780 flights from Raleigh arrived 15+ minutes late, diverted or cancelled over the past year (23%); 2.1% were cancelled. The typical flight landed 14 minutes early.

DL 4780: RDU → IND

Scheduled to leave Raleigh at 11:58 a.m. local time, operated by Endeavor Air as 9E 4780. Over the past year it arrived on time 77% of the time (239 flights), in line with other DL flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jan 2026: 81% on time (27 flights)81JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 84% on time (31 flights)84MarApr 2026: 73% on time (30 flights)73AprMay 2026: 90% on time (31 flights)90MayJun 2026: 70% on time (30 flights)70JunJul 2026: 71% on time (31 flights)71JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday3583%
Tuesday3474%
Wednesday3479%
Thursday3479%
Friday3482%
Saturday3465%
Sunday3479%

Why it was late

Airline (crew, maintenance, ops) 59%Late inbound plane 36%Air traffic & airport (NAS) 5%Severe weather 1%

All flights RDU → IND · Connecting off DL 4780? Check the risk

DL 4780: IND → RDU

Scheduled to leave Indianapolis at 2:35 p.m. local time, operated by Endeavor Air as 9E 4780. Over the past year it arrived on time 74% of the time (184 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%Jan 2026: 67% on time (27 flights)67JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 87% on time (31 flights)87MarApr 2026: too few flights (12 flights)AprJun 2026: 67% on time (24 flights)67JunJul 2026: 71% on time (31 flights)71JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday2778%
Tuesday2669%
Wednesday2662%
Thursday2688%
Friday2677%
Saturday2669%
Sunday2778%

Why it was late

Late inbound plane 70%Airline (crew, maintenance, ops) 20%Air traffic & airport (NAS) 10%Severe weather 1%

All flights IND → RDU · Connecting off DL 4780? Check the risk

Questions

How often is DL 4780 from RDU to IND late?

Delta Air Lines 4780 from Raleigh/Durham, NC to Indianapolis, IN arrived 15 or more minutes late, was diverted or was cancelled on 23% of 239 scheduled flights between September 2025 and August 2026. 2.1% were cancelled.

How often is DL 4780 from IND to RDU late?

Delta Air Lines 4780 from Indianapolis, IN to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 26% of 184 scheduled flights between September 2025 and August 2026. 1.6% 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.