ON TIMEBOARD

IAD → CHO on time

Washington Dulles (Washington, DC) to Charlottesville Albemarle (Charlottesville, VA). Every scheduled flight, September 2025 to August 2026.

On time
81%
arrived < 15 min late
Cancelled
2.0%
1,145 flights
Typical arrival
−10 min
median vs schedule
When late
+134 min
average delay
Flights / day
3
1 airline

81% of flights from Washington to Charlottesville arrived on time over the past 12 months. That is about the typical U.S. route. The 9 a.m. departures ran on time 86% of the time; the 6 p.m. ones 63%. 11% 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 IAD → CHO: when a flight was late, it was under 45 minutes late 39% of the time. About 1 in 11 flights landed an hour or more late, and 1 in 30 three hours or more; 2.0% were cancelled outright.

Share of all 1,145 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines1,14581%2.0%−10 min8.8%+134 minCommutAir 100%, Republic Airways 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 IAD). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%8 a.m. departures: too few flights (95 flights)8a9 a.m. departures: 86% on time (191 flights)869a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: 84% on time (338 flights)8412p1 p.m. departures: too few flights1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights (51 flights)5p6 p.m. departures: 63% on time (189 flights)636p7 p.m. departures: too few flights7p8 p.m. departures: too few flights8p9 p.m. departures: too few flights9p10 p.m. departures: 81% on time (281 flights)8110p
IAD → CHO, 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 IAD → CHO, each airline's last flight of the day was cancelled 2.2% of the time, against 1.8% for its earlier flights, about the same. It arrived 3+ hours late 3.6% of the time (earlier flights: 3.1%). 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
United Airlines10:40 p.m.2.2%3.6%1.8%first flight 9:00 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.

By month

Each calendar month pooled over 2023–2026. Best: April (86%). Worst: January (67%).

40%70%100%Jan: 67% on time (215 flights)67JanFeb: 77% on time (196 flights)77FebMar: 80% on time (278 flights)80MarApr: 86% on time (294 flights)86AprMay: 81% on time (300 flights)81MayJun: 78% on time (279 flights)78JunJul: 77% on time (247 flights)77JulAug: 79% on time (268 flights)79AugSep: 84% on time (276 flights)84SepOct: 86% on time (312 flights)86OctNov: 84% on time (266 flights)84NovDec: 72% on time (257 flights)72Dec

By day of week

DayFlightsOn timeCancelled
Monday17881%2.8%
Tuesday15784%1.9%
Wednesday15886%1.3%
Thursday17481%0.6%
Friday16675%1.8%
Saturday13580%2.2%
Sunday17777%3.4%

Why flights were late

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

Late inbound plane 46%Airline (crew, maintenance, ops) 40%Severe weather 9%Air traffic & airport (NAS) 5%

Cancellations: weather 14 · air traffic/airport 8 · airline 1

Month by month

60%80%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2024: 79% on time, 0.0% cancelledOct 2024: 86% on time, 0.0% cancelledNov 2024: 87% on time, 0.0% cancelledDec 2024: 67% on time, 0.0% cancelledMar 2025: 87% on time, 0.9% cancelledApr 2025: 87% on time, 0.0% cancelledMay 2025: 74% on time, 0.9% cancelledJun 2025: 65% on time, 3.7% cancelledOct 2025: 82% on time, 0.0% cancelledNov 2025: 80% on time, 5.6% cancelledDec 2025: 70% on time, 2.9% cancelledMar 2026: 72% on time, 2.6% cancelledApr 2026: 82% on time, 0.0% cancelledMay 2026: 83% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
IAD → CHO, monthly on-time and cancellation rate.

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
UA 43339:00 a.m.28687%2.5%−16 minCommutAir
UA 481512:55 p.m.33884%0.9%−9 minCommutAir
UA 426510:40 p.m.28181%2.1%−6 minCommutAir

Worst days in the past year

DateFlightsOn timeCancelled
Mar 19, 202640%0
Dec 30, 202540%0
Dec 7, 202530%1
Mar 17, 202630%0
Aug 2, 202630%0

Questions

How often are flights from IAD to CHO on time?

81% of 1,145 scheduled flights from Washington, DC to Charlottesville, VA arrived within 15 minutes of schedule between September 2025 and August 2026. 2.0% were cancelled.

What is the best time of day to fly IAD to CHO?

Flights scheduled to leave at 9 a.m. were the most reliable (86% on time). The 6 p.m. departures were the least (63%).

What month has the most delays from IAD to CHO?

January (67% on time). The best month is April (86%), over 2023–2026.

Is the last flight of the day from IAD to CHO more likely to be cancelled?

Not much. Each airline's last IAD–CHO flight of the day was cancelled 2.2% of the time over the past year, against 1.8% 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.