ON TIMEBOARD

DCA → BHM on time

Washington Reagan National (Washington, DC) to Birmingham-Shuttlesworth (Birmingham, AL). Every scheduled flight, September 2025 to August 2026.

On time
65%
arrived < 15 min late
Cancelled
5.3%
1,043 flights
Typical arrival
−6 min
median vs schedule
When late
+82 min
average delay
Flights / day
3
1 airline

65% of flights from Washington to Birmingham arrived on time over the past 12 months. That is worse than the typical U.S. route. The 8 a.m. departures ran on time 78% of the time; the 2 p.m. ones 57%. 19% 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 DCA → BHM: when a flight was late, it was under 45 minutes late 44% of the time. About 1 in 8 flights landed an hour or more late, and 1 in 42 three hours or more; 5.3% were cancelled outright.

Share of all 1,043 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines1,04365%5.3%−6 min13.0%+82 minPSA Airlines 94%, Republic Airways 6%, Envoy 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 DCA). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%8 a.m. departures: 78% on time (295 flights)788a9 a.m. departures: too few flights (64 flights)9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights (81 flights)1p2 p.m. departures: 57% on time (264 flights)572p3 p.m. departures: too few flights (1 flights)3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights5p6 p.m. departures: too few flights (6 flights)6p7 p.m. departures: too few flights (98 flights)7p8 p.m. departures: 59% on time (141 flights)598p9 p.m. departures: too few flights (88 flights)9p
DCA → 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 DCA → BHM, each airline's last flight of the day was cancelled 9.2% of the time, against 3.2% for its earlier flights (2.8× as often). It arrived 3+ hours late 3.9% of the time (earlier flights: 1.6%). 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 Airlines9:15 p.m.9.2%3.9%3.2%first flight 8:40 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 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 (86%). Worst: July (54%).

40%70%100%Jan: 61% on time (231 flights)61JanFeb: 64% on time (229 flights)64FebMar: 72% on time (258 flights)72MarApr: 73% on time (255 flights)73AprMay: 68% on time (261 flights)68MayJun: 63% on time (252 flights)63JunJul: 54% on time (259 flights)54JulAug: 67% on time (255 flights)67AugSep: 80% on time (255 flights)80SepOct: 83% on time (270 flights)83OctNov: 86% on time (253 flights)86NovDec: 71% on time (251 flights)71Dec

By day of week

DayFlightsOn timeCancelled
Monday15863%9.5%
Tuesday15666%5.1%
Wednesday15472%2.6%
Thursday15262%4.0%
Friday15565%3.9%
Saturday11271%5.4%
Sunday15660%6.4%

Why flights were late

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

Late inbound plane 55%Airline (crew, maintenance, ops) 28%Air traffic & airport (NAS) 11%Severe weather 7%

Cancellations: weather 47 · air traffic/airport 5 · airline 3

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Jan 16, 202630%0
Jan 27, 202630%2
Jun 10, 202630%1
Jan 26, 202630%3
Mar 12, 202630%1

Questions

How often are flights from DCA to BHM on time?

65% of 1,043 scheduled flights from Washington, DC to Birmingham, AL arrived within 15 minutes of schedule between September 2025 and August 2026. 5.3% were cancelled.

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

Flights scheduled to leave at 8 a.m. were the most reliable (78% on time). The 2 p.m. departures were the least (57%).

What month has the most delays from DCA to BHM?

July (54% on time). The best month is November (86%), over 2023–2026.

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

Yes. Each airline's last DCA–BHM flight of the day was cancelled 9.2% of the time over the past year, against 3.2% 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.