ON TIMEBOARD

MSN → PHL on time

Dane Truax (Madison, WI) to Philadelphia (Philadelphia, PA). Every scheduled flight, September 2025 to August 2026.

On time
76%
arrived < 15 min late
Cancelled
6.5%
691 flights
Typical arrival
−14 min
median vs schedule
When late
+102 min
average delay
Flights / day
2
1 airline

76% of flights from Madison to Philadelphia 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 89% of the time; the 5 p.m. ones 61%. 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 MSN → PHL: when a flight was late, it was under 45 minutes late 38% of the time. About 1 in 12 flights landed an hour or more late, and 1 in 43 three hours or more; 6.5% were cancelled outright.

Share of all 691 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines69176%6.5%−14 min8.5%+102 minPSA Airlines 73%, Piedmont Airlines 26%, American Airlines 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 MSN). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: 89% on time (200 flights)896a7 a.m. departures: too few flights7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights (44 flights)10a11 a.m. departures: too few flights (2 flights)11anoon departures: too few flights12p1 p.m. departures: 74% on time (176 flights)741p2 p.m. departures: too few flights (34 flights)2p3 p.m. departures: too few flights (1 flights)3p4 p.m. departures: too few flights (48 flights)4p5 p.m. departures: 61% on time (185 flights)615p
MSN → PHL, 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 MSN → PHL, each airline's last flight of the day was cancelled 10.4% of the time, against 4.9% for its earlier flights (2.1× as often). It arrived 3+ hours late 1.5% of the time (earlier flights: 3.7%). 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
American Airlines5:52 p.m.10.4%1.5%4.9%first flight 6:00 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.

If you need to be in PHL tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: April (88%). Worst: July (65%).

40%70%100%Jan: too few flights (82 flights)JanFeb: too few flights (71 flights)FebMar: too few flights (86 flights)MarApr: 88% on time (122 flights)88AprMay: 83% on time (155 flights)83MayJun: 73% on time (226 flights)73JunJul: 65% on time (238 flights)65JulAug: 66% on time (268 flights)66AugSep: 82% on time (151 flights)82SepOct: 88% on time (201 flights)88OctNov: too few flights (93 flights)NovDec: too few flights (96 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday10370%9.7%
Tuesday10087%6.0%
Wednesday92——
Thursday10071%7.0%
Friday10075%6.0%
Saturday96——
Sunday10071%6.0%

Why flights were late

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

Late inbound plane 43%Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 10%Severe weather 8%

Cancellations: weather 37 · air traffic/airport 8

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Aug 8, 202630%3
Jul 21, 202630%2
Jun 14, 202630%1
Jul 23, 202630%1
May 25, 202630%0

Questions

How often are flights from MSN to PHL on time?

76% of 691 scheduled flights from Madison, WI to Philadelphia, PA arrived within 15 minutes of schedule between September 2025 and August 2026. 6.5% were cancelled.

What is the best time of day to fly MSN to PHL?

Flights scheduled to leave at 6 a.m. were the most reliable (89% on time). The 5 p.m. departures were the least (61%).

What month has the most delays from MSN to PHL?

July (65% on time). The best month is April (88%), over 2023–2026.

Is the last flight of the day from MSN to PHL more likely to be cancelled?

Yes. Each airline's last MSN–PHL flight of the day was cancelled 10.4% of the time over the past year, against 4.9% 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.