ON TIMEBOARD

PHL → BHM on time

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

On time
72%
arrived < 15 min late
Cancelled
4.3%
562 flights
Typical arrival
−10 min
median vs schedule
When late
+98 min
average delay
Flights / day
2
1 airline

72% of flights from Philadelphia to Birmingham arrived on time over the past 12 months. That is worse than the typical U.S. route. The 10 a.m. departures ran on time 78% of the time; the 3 p.m. ones 58%. 16% 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 PHL → BHM: when a flight was late, it was under 45 minutes late 41% of the time. About 1 in 9 flights landed an hour or more late, and 1 in 31 three hours or more; 4.3% were cancelled outright.

Share of all 562 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines56272%4.3%−10 min11.7%+98 minPSA Airlines 94%, Republic Airways 6%

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

40%70%100%10 a.m. departures: 78% on time (213 flights)7810a11 a.m. departures: too few flights (35 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (1 flights)1p2 p.m. departures: too few flights (1 flights)2p3 p.m. departures: 58% on time (102 flights)583p4 p.m. departures: too few flights4p5 p.m. departures: too few flights (44 flights)5p6 p.m. departures: too few flights6p7 p.m. departures: too few flights (63 flights)7p8 p.m. departures: too few flights (28 flights)8p9 p.m. departures: too few flights9p10 p.m. departures: too few flights (74 flights)10p
PHL → BHM, 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 PHL → BHM, each airline's last flight of the day was cancelled 7.5% of the time, against 2.5% for its earlier flights (3.0× as often). It arrived 3+ hours late 4.0% of the time (earlier flights: 2.0%). 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 Airlines10:05 p.m.7.5%4.0%2.5%first flight 3:41 p.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 BHM tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: November (90%). Worst: July (61%).

40%70%100%Jan: too few flights (89 flights)JanFeb: too few flights (79 flights)FebMar: too few flights (93 flights)MarApr: 81% on time (164 flights)81AprMay: 64% on time (182 flights)64MayJun: 70% on time (161 flights)70JunJul: 61% on time (164 flights)61JulAug: 64% on time (182 flights)64AugSep: 83% on time (163 flights)83SepOct: 90% on time (155 flights)90OctNov: 90% on time (100 flights)90NovDec: too few flights (94 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday83——
Tuesday78——
Wednesday81——
Thursday80——
Friday82——
Saturday77——
Sunday81——

Why flights were late

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

Airline (crew, maintenance, ops) 39%Late inbound plane 37%Air traffic & airport (NAS) 12%Severe weather 11%

Cancellations: weather 21 · airline 2 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from PHL to BHM on time?

72% of 562 scheduled flights from Philadelphia, PA to Birmingham, AL arrived within 15 minutes of schedule between September 2025 and August 2026. 4.3% were cancelled.

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

Flights scheduled to leave at 10 a.m. were the most reliable (78% on time). The 3 p.m. departures were the least (58%).

What month has the most delays from PHL to BHM?

July (61% on time). The best month is November (90%), over 2023–2026.

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

Yes. Each airline's last PHL–BHM flight of the day was cancelled 7.5% 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.