Best time to fly out of Washington (DCA)

The early-flight folk wisdom holds up at Ronald Reagan Washington: departures in the 6–8am band left on time 91.4% of the time, against 67% in the 6–8pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.

Data through June 2026 · Bureau of Transportation Statistics

On-time rate by hour and day

On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.

Share of departures that left on time, by hour band and day of week.
Departure time MonTueWedThuFriSatSun
Before 6am 93 88 89 92 89 90 94
6–8am 91 92 93 92 90 91 92
8–10am 85 86 86 87 85 86 88
10am–12pm 81 85 85 83 81 84 84
12–2pm 77 81 81 77 75 80 77
2–4pm 73 77 75 72 69 75 71
4–6pm 68 72 70 65 65 75 65
6–8pm 68 73 69 64 63 75 61
8–10pm 70 74 69 67 65 76 65
10pm–12am 69 72 70 65 64 84 64
fewer left on time more left on time

The steadiest stretch at DCA was 6–8am — 91.4% of departures left on time across 51,146 flights. The weakest was 6–8pm at 67%. 6–8am departures from DCA left on time 91.4% of the time across 51,146 flights; 6–8pm departures, 67% across 44,266. That is a gap of 24.4 points, and it is the whole case for the early flight.

The year at DCA

July was the hard month at DCA: 70.1% of departures left on time, across 35,706 flights. October was the easy one at 84.4%. Each month pools three years of that month, so a single bad week does not decide it.

Share of departures that left on time, by calendar month. Best month in green, worst in amber. The hairline sits at the overall rate, 77.5%.
Departure on-time share at DCA by calendar month
Month Share departures that left on time Flights
January 77.3% 35,078
February 74.9% 33,275
March 76% 36,510
April 79.2% 35,382
May 75.4% 36,375
June 72.8% 35,300
July 70.1% 35,706
August 77.9% 35,884
September 82.7% 34,881
October 84.4% 36,418
November 82.7% 34,484
December 76% 33,668

Airlines at DCA

Every airline with at least 100 departures from DCA, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.

Airline Left on time Typical delay Cancelled Departures
PSA Airlines 73.1% 81 min 4.5% 117,207
American Airlines 78% 89 min 2.1% 82,534
Republic Airways 83.8% 68 min 3% 79,654
Southwest Airlines 72.6% 57 min 1.4% 47,871
Delta Air Lines 80.3% 86 min 1.7% 27,386
JetBlue Airways 74% 84 min 2.2% 22,895
United Airlines 84.4% 98 min 1.6% 19,369
Envoy Air 80.3% 73 min 2.8% 13,386
Alaska Airlines 77.3% 58 min 0.9% 5,931
Frontier Airlines 82.5% 91 min 1.4% 3,160
Endeavor Air 81.8% 93 min 1.7% 3,073
SkyWest Airlines 81% 119 min 3% 495

What delays out of DCA were put down to

Airlines file a reason with every arrival running 15 minutes late or more. Across 94,810 flights that departed DCA and ran 15 minutes late or more, the delay minutes break down with 48.8% put down to late-arriving aircraft and 26.1% to airline operations.

Late-arriving aircraft 48.8% Airline operations 26.1% Air traffic & airport volume 19.3% Severe weather 5.6% Security 0.1%
  • Late-arriving aircraft 48.8%
  • Airline operations 26.1%
  • Air traffic & airport volume 19.3%
  • Severe weather 5.6%
  • Security 0.1%

Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.

If you are connecting through DCA

Of 423,011 scheduled arrivals into DCA, 73.4% reached the gate less than 15 minutes behind schedule. Of the 99,170 arrivals that ran late, 51.6% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.

Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.

Busiest routes out of DCA

Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.

DCA in one number

Ronald Reagan Washington (DCA)

Rank 13 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: July.

July 2023–June 2026 · 411,093 departures flown

77.5% of departures left on time

Questions about DCA

What is the best time of day to fly out of Ronald Reagan Washington?
6–8am. Departures in that band left on time 91.4% of the time across 51,146 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 6–8pm band was the weakest at 67%.
Is the early flight out of DCA really more reliable?
6–8am departures from DCA left on time 91.4% of the time across 51,146 flights; 6–8pm departures, 67% across 44,266. That is a gap of 24.4 points, and it is the whole case for the early flight.
What is the worst month to fly out of DCA?
July: 70.1% of the departures that flew left on time, with 35,706 scheduled. October was the other end of the year at 84.4%. Each figure pools three years of that calendar month.
Which airline is most on time at DCA?
United Airlines — 84.4% of its 19,369 departures from DCA left on time. Southwest Airlines sat at the other end at 72.6% over 47,871 flights. Only airlines with at least 100 departures here are ranked.
How often are flights cancelled at DCA?
2.8% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.