ON TIMEBOARD

GSO → DTW on time

Piedmont Triad (Greensboro/High Point, NC) to Detroit Metro (Detroit, MI). Every scheduled flight, September 2025 to August 2026.

On time
75%
arrived < 15 min late
Cancelled
2.1%
795 flights
Typical arrival
−7 min
median vs schedule
When late
+111 min
average delay
Flights / day
2
1 airline

75% of flights from Greensboro to Detroit arrived on time over the past 12 months. That is worse than the typical U.S. route. The 6 a.m. departures ran on time 81% of the time; the 5 p.m. ones 72%. 13% 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 GSO → DTW: when a flight was late, it was under 45 minutes late 40% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 29 three hours or more; 2.1% were cancelled outright.

Share of all 795 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines79575%2.1%−7 min10.3%+111 minEndeavor Air 56%, SkyWest 44%, Republic Airways 0%

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 GSO). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: 81% on time (310 flights)816a7 a.m. departures: too few flights (40 flights)7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (93 flights)11anoon departures: too few flights (24 flights)12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights (9 flights)3p4 p.m. departures: too few flights (14 flights)4p5 p.m. departures: 72% on time (198 flights)725p6 p.m. departures: too few flights (56 flights)6p7 p.m. departures: too few flights (51 flights)7p
GSO → 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 GSO → DTW, each airline's last flight of the day was cancelled 1.5% of the time, against 2.8% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 5.0% of the time (earlier flights: 2.8%). 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 Lines7:00 p.m.1.5%5.0%2.8%first flight 6:08 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 (93%). Worst: July (73%).

40%70%100%Jan: too few flights (96 flights)JanFeb: 87% on time (100 flights)87FebMar: 76% on time (117 flights)76MarApr: 86% on time (130 flights)86AprMay: 83% on time (153 flights)83MayJun: 76% on time (205 flights)76JunJul: 73% on time (226 flights)73JulAug: 80% on time (212 flights)80AugSep: 93% on time (163 flights)93SepOct: 91% on time (140 flights)91OctNov: 91% on time (130 flights)91NovDec: 77% on time (131 flights)77Dec

By day of week

DayFlightsOn timeCancelled
Monday11867%3.4%
Tuesday11670%1.7%
Wednesday11479%0.0%
Thursday11482%0.0%
Friday11580%2.6%
Saturday10281%3.9%
Sunday11668%3.5%

Why flights were late

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

Airline (crew, maintenance, ops) 54%Late inbound plane 26%Severe weather 16%Air traffic & airport (NAS) 4%

Cancellations: weather 11 · airline 3 · air traffic/airport 3

Month by month

Not enough months with data to draw a trend.

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 50886:04 a.m.17784%1.1%−8 minEndeavor Air

Worst days in the past year

DateFlightsOn timeCancelled
Aug 11, 202630%0
Jul 21, 202630%0
Jul 20, 202630%0
Jul 7, 202630%1
Jun 14, 202630%0

Questions

How often are flights from GSO to DTW on time?

75% of 795 scheduled flights from Greensboro/High Point, NC to Detroit, MI arrived within 15 minutes of schedule between September 2025 and August 2026. 2.1% were cancelled.

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

Flights scheduled to leave at 6 a.m. were the most reliable (81% on time). The 5 p.m. departures were the least (72%).

What month has the most delays from GSO to DTW?

July (73% on time). The best month is September (93%), over 2023–2026.

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

No, the opposite. Each airline's last GSO–DTW flight of the day was cancelled 1.5% of the time over the past year, against 2.8% 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.