ON TIMEBOARD

BHM → PHL on time

Birmingham-Shuttlesworth (Birmingham, AL) to Philadelphia (Philadelphia, PA). Every scheduled flight, September 2025 to August 2026.

On time
78%
arrived < 15 min late
Cancelled
4.8%
565 flights
Typical arrival
−13 min
median vs schedule
When late
+108 min
average delay
Flights / day
2
1 airline

78% of flights from Birmingham to Philadelphia arrived on time over the past 12 months. That is about the typical U.S. route. The 6 a.m. departures ran on time 85% of the time; the 5 p.m. ones 55%. 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 BHM → PHL: when a flight was late, it was under 45 minutes late 44% of the time. About 1 in 13 flights landed an hour or more late, and 1 in 51 three hours or more; 4.8% were cancelled outright.

Share of all 565 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines56578%4.8%−13 min8.0%+108 minPSA Airlines 95%, Republic Airways 5%

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

40%70%100%5 a.m. departures: too few flights (26 flights)5a6 a.m. departures: 85% on time (178 flights)856a7 a.m. departures: too few flights (1 flights)7a8 a.m. departures: too few flights (1 flights)8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (1 flights)11anoon departures: too few flights (44 flights)12p1 p.m. departures: too few flights (7 flights)1p2 p.m. departures: 77% on time (203 flights)772p3 p.m. departures: too few flights (1 flights)3p4 p.m. departures: too few flights4p5 p.m. departures: 55% on time (103 flights)555p
BHM → 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 BHM → PHL, each airline's last flight of the day was cancelled 6.0% of the time, against 4.4% for its earlier flights (1.3× as often). It arrived 3+ hours late 1.5% of the time (earlier flights: 1.0%). 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 Airlines5:46 p.m.6.0%1.5%4.4%first flight 6:02 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: October (90%). Worst: July (67%).

40%70%100%Jan: too few flights (89 flights)JanFeb: too few flights (79 flights)FebMar: too few flights (93 flights)MarApr: 90% on time (164 flights)90AprMay: 78% on time (183 flights)78MayJun: 71% on time (160 flights)71JunJul: 67% on time (164 flights)67JulAug: 75% on time (183 flights)75AugSep: 85% on time (162 flights)85SepOct: 90% on time (156 flights)90OctNov: 81% on time (102 flights)81NovDec: too few flights (96 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday83——
Tuesday78——
Wednesday82——
Thursday82——
Friday82——
Saturday77——
Sunday81——

Why flights were late

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

Late inbound plane 49%Airline (crew, maintenance, ops) 23%Severe weather 22%Air traffic & airport (NAS) 6%

Cancellations: weather 23 · air traffic/airport 3 · airline 1

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
AA 52186:00 a.m.17785%5.1%−15 minPSA Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Aug 5, 2026367%1
May 21, 20263100%0

Questions

How often are flights from BHM to PHL on time?

78% of 565 scheduled flights from Birmingham, AL to Philadelphia, PA arrived within 15 minutes of schedule between September 2025 and August 2026. 4.8% were cancelled.

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

Flights scheduled to leave at 6 a.m. were the most reliable (85% on time). The 5 p.m. departures were the least (55%).

What month has the most delays from BHM to PHL?

July (67% on time). The best month is October (90%), over 2023–2026.

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

Yes. Each airline's last BHM–PHL flight of the day was cancelled 6.0% of the time over the past year, against 4.4% 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.