ON TIMEBOARD

BTV → DTW on time

Patrick Leahy Burlington (Burlington, VT) to Detroit Metro (Detroit, MI). Every scheduled flight, September 2025 to August 2026.

On time
70%
arrived < 15 min late
Cancelled
2.0%
803 flights
Typical arrival
−9 min
median vs schedule
When late
+104 min
average delay
Flights / day
2
1 airline

70% of flights from Burlington to Detroit arrived on time over the past 12 months. That is worse than the typical U.S. route. The 7 a.m. departures ran on time 80% of the time; the 4 p.m. ones 63%. 15% 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 BTV → DTW: when a flight was late, it was under 45 minutes late 43% of the time. About 1 in 8 flights landed an hour or more late, and 1 in 23 three hours or more; 2.0% were cancelled outright.

Share of all 803 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Delta Air Lines80370%2.0%−9 min13.3%+104 minEndeavor Air 55%, SkyWest 45%, Delta Air Lines 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 BTV). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: 80% on time (345 flights)807a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (4 flights)11anoon departures: too few flights (10 flights)12p1 p.m. departures: too few flights (83 flights)1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: 63% on time (274 flights)634p5 p.m. departures: too few flights (66 flights)5p
BTV → 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 BTV → DTW, each airline's last flight of the day was cancelled 1.4% of the time, against 2.5% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 3.7% of the time (earlier flights: 4.8%). 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 Lines4:52 p.m.1.4%3.7%2.5%first flight 7:19 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: April (91%). Worst: December (60%).

40%70%100%Jan: 68% on time (121 flights)68JanFeb: 67% on time (110 flights)67FebMar: 73% on time (124 flights)73MarApr: 91% on time (142 flights)91AprMay: 85% on time (155 flights)85MayJun: 68% on time (173 flights)68JunJul: 67% on time (183 flights)67JulAug: 74% on time (185 flights)74AugSep: 85% on time (136 flights)85SepOct: 90% on time (149 flights)90OctNov: 83% on time (109 flights)83NovDec: 60% on time (119 flights)60Dec

By day of week

DayFlightsOn timeCancelled
Monday12065%1.7%
Tuesday11563%2.6%
Wednesday11373%1.8%
Thursday11374%0.9%
Friday11575%1.7%
Saturday11075%2.7%
Sunday11769%2.6%

Why flights were late

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

Airline (crew, maintenance, ops) 49%Late inbound plane 27%Air traffic & airport (NAS) 14%Severe weather 10%

Cancellations: weather 9 · airline 4 · 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 54947:19 a.m.22183%2.3%−17 minEndeavor Air

Worst days in the past year

DateFlightsOn timeCancelled
Jul 7, 202630%1
Jun 10, 202630%0
Aug 22, 202630%0
Aug 1, 2026333%0
Jul 29, 2026333%0

Questions

How often are flights from BTV to DTW on time?

70% of 803 scheduled flights from Burlington, VT to Detroit, MI arrived within 15 minutes of schedule between September 2025 and August 2026. 2.0% were cancelled.

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

Flights scheduled to leave at 7 a.m. were the most reliable (80% on time). The 4 p.m. departures were the least (63%).

What month has the most delays from BTV to DTW?

December (60% on time). The best month is April (91%), over 2023–2026.

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

No, the opposite. Each airline's last BTV–DTW flight of the day was cancelled 1.4% of the time over the past year, against 2.5% 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.