BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ATL→DCA

Atlanta, GA (ATL) to Washington, DC (DCA) flight delay odds

67.5% of 6,812 official scheduled ATL-to-DCA flights arrived on time; 18.5% arrived at least 30 minutes late and 3.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
67.5%arrived on time
18.5%30+ min late
3.3%cancelled
6,812scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.6%all scheduled flights
120+ minutes late4.0%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+15.6 mincompleted flights

Which departure time was most reliable for ATL to DCA?

Among qualifying ATL-to-DCA departure window results, Early morning had the highest on-time rate: 83.5% of 1,197 flights. Evening was lowest at 54.7% across 1,846 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,19783.5%6.8%4.3%
Late morning1,39678.9%11.4%2.8%
Afternoon1,89262.3%22.0%2.0%
Evening1,84654.7%27.2%4.4%
Night48163.8%21.0%3.5%

Which weekday was most reliable for ATL to DCA?

Among qualifying ATL-to-DCA weekday results, Saturday had the highest on-time rate: 75.3% of 752 flights. Sunday was lowest at 61.6% across 963 flights.

DayFlightsOn time30+ minCancelled
Monday1,03467.4%16.6%3.9%
Tuesday99972.5%16.3%2.4%
Wednesday1,03069.4%18.8%1.9%
Thursday1,01864.1%22.5%1.8%
Friday1,01663.7%21.1%3.7%
Saturday75275.3%12.6%3.5%
Sunday96361.6%20.0%6.2%

Which airline was most reliable for ATL to DCA?

Among qualifying ATL-to-DCA airline results, Southwest Airlines had the highest on-time rate: 71.8% of 1,139 flights. Delta Air Lines was lowest at 65.3% across 3,838 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,83865.3%19.8%2.6%
Southwest Airlines1,13971.8%17.8%1.8%
PSA Airlines1,05368.9%17.0%7.7%
Republic Airways46270.8%13.2%3.2%
Envoy Air25969.1%16.2%3.9%
American Airlines6167.2%26.2%1.6%

Which month was most reliable for ATL to DCA?

Among qualifying ATL-to-DCA month results, September 2025 had the highest on-time rate: 79.7% of 592 flights. July 2025 was lowest at 51.4% across 582 flights.

MonthFlightsOn time30+ minCancelled
July 202558251.4%31.6%7.6%
August 202558372.2%16.5%1.5%
September 202559279.7%10.3%0.3%
October 202558277.7%11.2%0.2%
November 202554466.9%20.6%3.3%
December 202554362.8%20.1%3.7%
January 202657365.4%16.6%8.4%
February 202652865.2%18.2%3.0%
March 202658557.9%22.4%5.1%
April 202656471.8%14.9%0.4%
May 202657469.5%19.9%2.1%
June 202656268.3%20.1%4.3%

What drove ATL to DCA delay minutes?

National airspace was the largest recorded ATL-to-DCA delay category, accounting for 35.9% of 136,793 BTS-attributed delay minutes during July 2025–June 2026.

Airline29.3%
Late aircraft29.5%
National airspace35.9%
Weather5.2%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.