ON TIMEBOARD

DL 1163 on time

Delta Air Lines 1163: Detroit to Boston at 7:00 a.m. (past 12 months)

On time
89%
365 flights · likely 85–92%
Cancelled
2.2%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+52 min
average delay
Similar flights
89%
DL, same route & hour

About 1 in 9 DL 1163 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (11%); 2.2% were cancelled. The typical flight landed 14 minutes early.

DL 1163: DTW → BOS

Scheduled to leave Detroit at 7:00 a.m. local time. Over the past year it arrived on time 89% of the time (365 flights), in line with other DL flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 97% on time (30 flights)97SepOct 2025: 97% on time (31 flights)97OctNov 2025: 87% on time (30 flights)87NovDec 2025: 90% on time (31 flights)90DecJan 2026: 61% on time (31 flights)61JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 94% on time (31 flights)94MarApr 2026: 93% on time (30 flights)93AprMay 2026: 100% on time (31 flights)100MayJun 2026: 97% on time (30 flights)97JunJul 2026: 90% on time (31 flights)90JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5385%
Tuesday5290%
Wednesday5292%
Thursday5290%
Friday5288%
Saturday5288%
Sunday5288%

Why it was late

Airline (crew, maintenance, ops) 68%Air traffic & airport (NAS) 26%Severe weather 4%Late inbound plane 2%

All flights DTW → BOS · Connecting off DL 1163? Check the risk

Questions

How often is DL 1163 from DTW to BOS late?

Delta Air Lines 1163 from Detroit, MI to Boston, MA arrived 15 or more minutes late, was diverted or was cancelled on 11% of 365 scheduled flights between September 2025 and August 2026. 2.2% 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.