ON TIMEBOARD
Delta Air Lines / DTW → BWI

DL 1546 on time

Delta Air Lines 1546: Detroit to Baltimore at 10:10 a.m.; Baltimore to Detroit at 11:45 a.m. (past 12 months). Figures below the title are for DTW → BWI, its busiest leg

On time
86%
307 flights · likely 81–89%
Cancelled
0.3%
of scheduled flights
Typical arrival
−12 min
median vs schedule
When late
+47 min
average delay
Similar flights
89%
DL, same route & hour

About 1 in 7 DL 1546 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.3% were cancelled. The typical flight landed 12 minutes early.

DL 1546: DTW → BWI

Scheduled to leave Detroit at 10:10 a.m. local time. Over the past year it arrived on time 86% of the time (307 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: 93% on time (30 flights)93SepOct 2025: 97% on time (31 flights)97OctNov 2025: too few flights (10 flights)NovDec 2025: too few flights (14 flights)DecJan 2026: 68% on time (25 flights)68JanFeb 2026: 86% on time (22 flights)86FebMar 2026: 74% on time (27 flights)74MarApr 2026: 92% on time (26 flights)92AprMay 2026: 87% on time (30 flights)87MayJun 2026: 83% on time (30 flights)83JunJul 2026: 90% on time (31 flights)90JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday4683%
Tuesday4689%
Wednesday4687%
Thursday4691%
Friday4674%
Saturday3491%
Sunday4386%

Why it was late

Airline (crew, maintenance, ops) 70%Air traffic & airport (NAS) 16%Late inbound plane 11%Severe weather 4%

All flights DTW → BWI · Connecting off DL 1546? Check the risk

DL 1546: BWI → DTW

Scheduled to leave Baltimore at 11:45 a.m. local time. Over the past year it arrived on time 87% of the time (306 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: 93% on time (30 flights)93SepOct 2025: 100% on time (31 flights)100OctNov 2025: too few flights (10 flights)NovDec 2025: too few flights (14 flights)DecJan 2026: 88% on time (25 flights)88JanFeb 2026: 100% on time (22 flights)100FebMar 2026: 93% on time (27 flights)93MarApr 2026: 92% on time (25 flights)92AprMay 2026: 83% on time (30 flights)83MayJun 2026: 77% on time (30 flights)77JunJul 2026: 74% on time (31 flights)74JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday4685%
Tuesday4693%
Wednesday4693%
Thursday4689%
Friday4674%
Saturday3494%
Sunday4283%

Why it was late

Airline (crew, maintenance, ops) 62%Late inbound plane 28%Air traffic & airport (NAS) 10%

All flights BWI → DTW · Connecting off DL 1546? Check the risk

Questions

How often is DL 1546 from DTW to BWI late?

Delta Air Lines 1546 from Detroit, MI to Baltimore, MD arrived 15 or more minutes late, was diverted or was cancelled on 14% of 307 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

How often is DL 1546 from BWI to DTW late?

Delta Air Lines 1546 from Baltimore, MD to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 13% of 306 scheduled flights between September 2025 and August 2026. 0.7% 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.