ON TIMEBOARD

DL 2039 on time

Delta Air Lines 2039: Chicago to Detroit at 7:10 a.m. (past 12 months)

On time
85%
349 flights · likely 80–88%
Cancelled
3.1%
of scheduled flights
Typical arrival
−12 min
median vs schedule
When late
+113 min
average delay
Similar flights
85%
DL, same route & hour

About 1 in 6 DL 2039 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (15%); 3.1% were cancelled. The typical flight landed 12 minutes early.

DL 2039: ORD → DTW

Scheduled to leave Chicago at 7:10 a.m. local time. Over the past year it arrived on time 85% of the time (349 flights), in line with other DL flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 97% on time (31 flights)97OctNov 2025: 73% on time (30 flights)73NovDec 2025: 74% on time (19 flights)74DecJan 2026: 74% on time (27 flights)74JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 74% on time (31 flights)74MarApr 2026: 97% on time (30 flights)97AprMay 2026: 87% on time (31 flights)87MayJun 2026: 77% on time (30 flights)77JunJul 2026: 90% on time (31 flights)90JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5180%
Tuesday5088%
Wednesday5092%
Thursday5088%
Friday5086%
Saturday4982%
Sunday4976%

Why it was late

Airline (crew, maintenance, ops) 86%Air traffic & airport (NAS) 8%Severe weather 4%Late inbound plane 2%

All flights ORD → DTW · Connecting off DL 2039? Check the risk

Questions

How often is DL 2039 from ORD to DTW late?

Delta Air Lines 2039 from Chicago, IL to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 15% of 349 scheduled flights between September 2025 and August 2026. 3.1% 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.