ON TIMEBOARD

PWM → CLT on time

Portland Jetport (Portland, ME) to Charlotte Douglas (Charlotte, NC). Every scheduled flight, September 2025 to August 2026.

On time
81%
arrived < 15 min late
Cancelled
1.1%
708 flights
Typical arrival
−13 min
median vs schedule
When late
+115 min
average delay
Flights / day
2
1 airline

81% of flights from Portland to Charlotte arrived on time over the past 12 months. That is about the typical U.S. route. 8% 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 PWM → CLT: when a flight was late, it was under 45 minutes late 51% of the time. About 1 in 15 flights landed an hour or more late, and 1 in 42 three hours or more; 1.1% were cancelled outright.

Share of all 708 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines70881%1.1%−13 min6.8%+115 minAmerican Airlines 91%, PSA Airlines 9%

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

40%70%100%7 a.m. departures: 84% on time (328 flights)847a8 a.m. departures: too few flights (25 flights)8a9 a.m. departures: too few flights (1 flights)9a10 a.m. departures: too few flights (13 flights)10a11 a.m. departures: too few flights (37 flights)11anoon departures: too few flights (4 flights)12p1 p.m. departures: too few flights (54 flights)1p2 p.m. departures: too few flights (97 flights)2p3 p.m. departures: too few flights (12 flights)3p4 p.m. departures: too few flights (4 flights)4p5 p.m. departures: too few flights (73 flights)5p6 p.m. departures: too few flights (45 flights)6p
PWM → CLT, 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 PWM → CLT, each airline's last flight of the day was cancelled 0.0% of the time, against 0.3% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 2.4% 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 Airlines5:58 p.m.0.0%2.4%0.3%first flight 7:16 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: November (90%). Worst: July (62%).

40%70%100%Jan: too few flights (94 flights)JanFeb: too few flights (85 flights)FebMar: too few flights (93 flights)MarApr: 83% on time (168 flights)83AprMay: 84% on time (200 flights)84MayJun: 74% on time (274 flights)74JunJul: 62% on time (285 flights)62JulAug: 70% on time (250 flights)70AugSep: 84% on time (256 flights)84SepOct: 88% on time (236 flights)88OctNov: 90% on time (106 flights)90NovDec: too few flights (95 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday10375%2.9%
Tuesday93——
Wednesday91——
Thursday10183%0.0%
Friday10084%0.0%
Saturday11177%0.0%
Sunday10980%1.8%

Why flights were late

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

Airline (crew, maintenance, ops) 44%Late inbound plane 40%Air traffic & airport (NAS) 15%Severe weather 1%

Cancellations: weather 8

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 23487:00 a.m.21071%3.3%−10 minAmerican Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Aug 2, 202630%0
Jul 29, 202630%0
Aug 3, 202630%1
Jul 21, 2026333%0
Jul 17, 2026333%0

Questions

How often are flights from PWM to CLT on time?

81% of 708 scheduled flights from Portland, ME to Charlotte, NC arrived within 15 minutes of schedule between September 2025 and August 2026. 1.1% were cancelled.

What month has the most delays from PWM to CLT?

July (62% on time). The best month is November (90%), over 2023–2026.

Is the last flight of the day from PWM to CLT more likely to be cancelled?

No, the opposite. Each airline's last PWM–CLT flight of the day was cancelled 0.0% of the time over the past year, against 0.3% 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.