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

Chicago, IL (ORD) to Washington, DC (DCA) flight delay odds

66.6% of 6,987 official scheduled ORD-to-DCA flights arrived on time; 21.3% arrived at least 30 minutes late and 3.0% 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
66.6%arrived on time
21.3%30+ min late
3.0%cancelled
6,987scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.6%all scheduled flights
120+ minutes late5.9%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+19.4 mincompleted flights

Which departure time was most reliable for ORD to DCA?

Among qualifying ORD-to-DCA departure window results, Early morning had the highest on-time rate: 82.6% of 1,745 flights. Evening was lowest at 52.9% across 1,587 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,74582.6%9.3%2.1%
Late morning1,59869.5%19.5%2.0%
Afternoon1,83461.3%25.2%2.5%
Evening1,58752.9%31.6%5.4%
Night22361.9%23.3%6.3%

Which weekday was most reliable for ORD to DCA?

Among qualifying ORD-to-DCA weekday results, Saturday had the highest on-time rate: 72.8% of 731 flights. Sunday was lowest at 63.0% across 1,046 flights.

DayFlightsOn time30+ minCancelled
Monday1,04864.7%22.5%3.6%
Tuesday1,06771.4%17.2%2.2%
Wednesday1,03266.7%22.5%1.9%
Thursday1,02666.1%20.5%2.7%
Friday1,03763.5%25.0%2.6%
Saturday73172.8%18.2%3.3%
Sunday1,04663.0%22.7%5.0%

Which airline was most reliable for ORD to DCA?

Among qualifying ORD-to-DCA airline results, Envoy Air had the highest on-time rate: 80.1% of 171 flights. SkyWest Airlines was lowest at 58.0% across 69 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines3,39368.9%20.2%1.8%
American Airlines2,29963.2%23.8%4.2%
Republic Airways1,05564.9%20.9%4.5%
Envoy Air17180.1%8.8%2.3%
SkyWest Airlines6958.0%30.4%5.8%

Which month was most reliable for ORD to DCA?

Among qualifying ORD-to-DCA month results, October 2025 had the highest on-time rate: 74.5% of 595 flights. July 2025 was lowest at 53.8% across 589 flights.

MonthFlightsOn time30+ minCancelled
July 202558953.8%31.6%5.8%
August 202558569.4%19.7%2.7%
September 202557667.0%21.2%0.7%
October 202559574.5%15.6%0.7%
November 202556265.5%21.7%4.4%
December 202555566.1%21.8%2.2%
January 202659264.0%21.3%6.2%
February 202652969.6%18.0%1.1%
March 202659160.6%24.2%4.9%
April 202656768.8%18.7%3.2%
May 202660871.1%20.4%1.2%
June 202663869.1%21.5%3.3%

What drove ORD to DCA delay minutes?

Late aircraft was the largest recorded ORD-to-DCA delay category, accounting for 41.8% of 169,851 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.2%
Late aircraft41.8%
National airspace29.1%
Weather5.9%
Security0.0%
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.