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

Buffalo, NY (BUF) to Washington, DC (DCA) flight delay odds

61.4% of 1,162 official scheduled BUF-to-DCA flights arrived on time; 23.8% arrived at least 30 minutes late and 5.6% 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 SIGNALHigher disruption
61.4%arrived on time
23.8%30+ min late
5.6%cancelled
1,162scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.5%all scheduled flights
120+ minutes late7.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+30.8 mincompleted flights

Which departure time was most reliable for BUF to DCA?

Among qualifying BUF-to-DCA departure window results, Early morning had the highest on-time rate: 83.5% of 363 flights. Evening was lowest at 43.8% across 304 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36383.5%8.8%3.9%
Late morning9376.3%14.0%0.0%
Afternoon40251.2%31.6%6.0%
Evening30443.8%34.5%8.9%

Which weekday was most reliable for BUF to DCA?

Among qualifying BUF-to-DCA weekday results, Saturday had the highest on-time rate: 67.6% of 148 flights. Monday was lowest at 53.3% across 169 flights.

DayFlightsOn time30+ minCancelled
Monday16953.3%29.0%8.9%
Tuesday17363.0%22.5%5.2%
Wednesday16963.9%19.5%6.5%
Thursday16564.8%20.0%5.5%
Friday16857.1%24.4%6.5%
Saturday14867.6%23.6%2.7%
Sunday17060.6%27.6%3.5%

Which airline was most reliable for BUF to DCA?

Among qualifying BUF-to-DCA airline results, Republic Airways had the highest on-time rate: 74.6% of 264 flights. Envoy Air was lowest at 48.2% across 164 flights.

AirlineFlightsOn time30+ minCancelled
PSA Airlines72859.2%26.2%6.2%
Republic Airways26474.6%15.2%1.9%
Envoy Air16448.2%28.0%9.1%
American Airlines6100.0%0.0%0.0%

Which month was most reliable for BUF to DCA?

Among qualifying BUF-to-DCA month results, September 2025 had the highest on-time rate: 75.9% of 116 flights. July 2025 was lowest at 48.7% across 119 flights.

MonthFlightsOn time30+ minCancelled
July 202511948.7%23.5%15.1%
August 202511970.6%21.8%3.4%
September 202511675.9%18.1%0.0%
October 20259671.9%17.7%0.0%
November 20258848.9%39.8%4.5%
December 20259048.9%28.9%7.8%
January 20269259.8%23.9%10.9%
February 20268153.1%37.0%3.7%
March 20268958.4%25.8%3.4%
April 20268970.8%15.7%2.2%
May 20269371.0%12.9%2.2%
June 20269053.3%25.6%13.3%

What drove BUF to DCA delay minutes?

Late aircraft was the largest recorded BUF-to-DCA delay category, accounting for 51.3% of 39,658 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.0%
Late aircraft51.3%
National airspace23.2%
Weather2.3%
Security0.2%
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.