ON TIMEBOARD

DAY → DCA on time

James M. Cox Dayton (Dayton, OH) to Washington Reagan National (Washington, DC). Every scheduled flight, September 2025 to August 2026.

On time
67%
arrived < 15 min late
Cancelled
4.2%
959 flights
Typical arrival
−7 min
median vs schedule
When late
+114 min
average delay
Flights / day
3
1 airline

67% of flights from Dayton to Washington arrived on time over the past 12 months. That is worse than the typical U.S. route. The 9 a.m. departures ran on time 82% of the time; the 7 p.m. ones 44%. 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 DAY → DCA: when a flight was late, it was under 45 minutes late 38% of the time. About 1 in 7 flights landed an hour or more late, and 1 in 22 three hours or more; 4.2% were cancelled outright.

Share of all 959 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines95967%4.2%−7 min14.6%+114 minPSA Airlines

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

30%65%100%5 a.m. departures: too few flights (22 flights)5a6 a.m. departures: 82% on time (316 flights)826a7 a.m. departures: too few flights (18 flights)7a8 a.m. departures: too few flights (5 flights)8a9 a.m. departures: 82% on time (192 flights)829a10 a.m. departures: 71% on time (117 flights)7110a11 a.m. departures: too few flights11anoon departures: too few flights (7 flights)12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights (1 flights)2p3 p.m. departures: too few flights (23 flights)3p4 p.m. departures: too few flights4p5 p.m. departures: too few flights (24 flights)5p6 p.m. departures: too few flights (77 flights)6p7 p.m. departures: 44% on time (157 flights)447p
DAY → DCA, 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 DAY → DCA, each airline's last flight of the day was cancelled 7.3% of the time, against 2.5% for its earlier flights (2.9× as often). It arrived 3+ hours late 6.1% of the time (earlier flights: 3.9%). 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 Airlines4:46 p.m.7.3%6.1%2.5%first flight 6:00 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.

If you need to be in DCA 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 (82%). Worst: February (64%).

40%70%100%Jan: 65% on time (284 flights)65JanFeb: 64% on time (283 flights)64FebMar: 74% on time (307 flights)74MarApr: 74% on time (300 flights)74AprMay: 69% on time (309 flights)69MayJun: 73% on time (242 flights)73JunJul: 69% on time (235 flights)69JulAug: 72% on time (236 flights)72AugSep: 81% on time (276 flights)81SepOct: 82% on time (291 flights)82OctNov: 82% on time (288 flights)82NovDec: 75% on time (244 flights)75Dec

By day of week

DayFlightsOn timeCancelled
Monday15370%5.9%
Tuesday13570%1.5%
Wednesday15265%5.3%
Thursday14869%3.4%
Friday14865%4.0%
Saturday90——
Sunday13359%5.3%

Why flights were late

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

Late inbound plane 49%Air traffic & airport (NAS) 21%Airline (crew, maintenance, ops) 20%Severe weather 10%

Cancellations: weather 29 · air traffic/airport 8 · airline 2 · security 1

Month by month

40%70%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2023: 76% on time, 1.9% cancelledOct 2023: 84% on time, 0.0% cancelledNov 2023: 86% on time, 1.0% cancelledJan 2024: 72% on time, 6.7% cancelledFeb 2024: 80% on time, 1.0% cancelledMar 2024: 86% on time, 0.0% cancelledApr 2024: 79% on time, 1.8% cancelledMay 2024: 77% on time, 0.9% cancelledNov 2024: 88% on time, 0.0% cancelledJan 2025: 64% on time, 8.8% cancelledFeb 2025: 49% on time, 9.0% cancelledMar 2025: 75% on time, 1.8% cancelledApr 2025: 69% on time, 1.8% cancelledMay 2025: 59% on time, 3.4% cancelled
Share of flights on time, by month (hover a point for cancellations)
DAY → DCA, 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
AA 52616:00 a.m.33982%3.5%−19 minPSA Airlines
AA 51089:03 a.m.15775%2.5%−12 minPSA Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Mar 2, 202630%1
Feb 23, 202630%1
Dec 14, 202530%2
May 25, 202630%0
Jan 26, 202630%1

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Dayton or Washington. DAY → IAD has been 12 points more reliable.

RouteFlightsOn timeCancelled
DAY → DCA (this route)95967%4.2%
DAY → IAD James M. Cox Dayton to Washington Dulles94880%1.8%

Questions

How often are flights from DAY to DCA on time?

67% of 959 scheduled flights from Dayton, OH to Washington, DC arrived within 15 minutes of schedule between September 2025 and August 2026. 4.2% were cancelled.

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

Flights scheduled to leave at 9 a.m. were the most reliable (82% on time). The 7 p.m. departures were the least (44%).

What month has the most delays from DAY to DCA?

February (64% on time). The best month is October (82%), over 2023–2026.

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

Yes. Each airline's last DAY–DCA flight of the day was cancelled 7.3% 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.