ON TIMEBOARD

MEM → DTW on time

Frederick W. Smith (Memphis, TN) to Detroit Metro (Detroit, MI). Every scheduled flight, September 2025 to August 2026.

On time
79%
arrived < 15 min late
Cancelled
1.7%
1,100 flights
Typical arrival
−10 min
median vs schedule
When late
+101 min
average delay
Flights / day
3
1 airline

79% of flights from Memphis to Detroit arrived on time over the past 12 months. That is about the typical U.S. route. The 6 a.m. departures ran on time 91% of the time; the 5 p.m. ones 66%. 11% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for MEM → DTW: when a flight was late, it was under 45 minutes late 43% of the time. About 1 in 11 flights landed an hour or more late, and 1 in 33 three hours or more; 1.7% were cancelled outright.

Share of all 1,100 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines1,10079%1.7%−10 min9.2%+101 minSkyWest 52%, Delta Air Lines 37%, Endeavor Air 10%, Republic Airways 1%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at MEM). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: 91% on time (365 flights)916a7 a.m. departures: too few flights7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights (3 flights)9a10 a.m. departures: 78% on time (289 flights)7810a11 a.m. departures: too few flights (4 flights)11anoon departures: too few flights (70 flights)12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights (95 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights4p5 p.m. departures: 66% on time (274 flights)665p
MEM → DTW, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On MEM → DTW, each airline's last flight of the day was cancelled 0.8% of the time, against 2.2% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 4.9% of the time (earlier flights: 2.2%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Delta Air Lines5:53 p.m.0.8%4.9%2.2%first flight 6:30 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

By month

Each calendar month pooled over 2023–2026. Best: September (92%). Worst: January (65%).

40%70%100%Jan: 65% on time (189 flights)65JanFeb: 86% on time (177 flights)86FebMar: 82% on time (207 flights)82MarApr: 86% on time (202 flights)86AprMay: 85% on time (240 flights)85MayJun: 80% on time (281 flights)80JunJul: 83% on time (293 flights)83JulAug: 88% on time (290 flights)88AugSep: 92% on time (236 flights)92SepOct: 91% on time (255 flights)91OctNov: 90% on time (236 flights)90NovDec: 80% on time (239 flights)80Dec

By day of week

DayFlightsOn timeCancelled
Monday16977%1.8%
Tuesday15978%1.3%
Wednesday15780%0.0%
Thursday16379%0.0%
Friday16480%2.4%
Saturday12585%3.2%
Sunday16374%3.7%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 60%Severe weather 20%Late inbound plane 13%Air traffic & airport (NAS) 7%

Cancellations: weather 8 · airline 7 · air traffic/airport 4

Month by month

50%75%100%Sep 2023Jan 2024Jan 2025Jan 2026Jun 2025: 76% on time, 1.6% cancelledJul 2025: 85% on time, 2.3% cancelledAug 2025: 88% on time, 0.8% cancelledSep 2025: 91% on time, 0.0% cancelledOct 2025: 90% on time, 0.0% cancelledNov 2025: 84% on time, 3.8% cancelledDec 2025: 64% on time, 3.7% cancelled
Share of flights on time, by month (hover a point for cancellations)
MEM → DTW, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
DL 23706:30 a.m.23888%2.9%−17 minDelta Air Lines

Worst days in the past year

DateFlightsOn timeCancelled
Jan 25, 202630%2
Mar 7, 202630%0
Jan 26, 202630%1
Nov 11, 2025425%2
Dec 9, 2025425%0

Questions

How often are flights from MEM to DTW on time?

79% of 1,100 scheduled flights from Memphis, TN to Detroit, MI arrived within 15 minutes of schedule between September 2025 and August 2026. 1.7% were cancelled.

What is the best time of day to fly MEM to DTW?

Flights scheduled to leave at 6 a.m. were the most reliable (91% on time). The 5 p.m. departures were the least (66%).

What month has the most delays from MEM to DTW?

January (65% on time). The best month is September (92%), over 2023–2026.

Is the last flight of the day from MEM to DTW more likely to be cancelled?

No, the opposite. Each airline's last MEM–DTW flight of the day was cancelled 0.8% of the time over the past year, against 2.2% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.