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

San Francisco, CA (SFO) to Washington, DC (DCA) flight delay odds

77.4% of 1,093 official scheduled SFO-to-DCA flights arrived on time; 13.8% arrived at least 30 minutes late and 1.0% 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 SIGNALGenerally reliable
77.4%arrived on time
13.8%30+ min late
1.0%cancelled
1,093scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.4%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+0.2 mincompleted flights

Which departure time was most reliable for SFO to DCA?

Among qualifying SFO-to-DCA departure window results, Early morning had the highest on-time rate: 86.8% of 364 flights. Afternoon was lowest at 69.3% across 365 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36486.8%6.3%1.1%
Late morning36476.1%13.2%1.1%
Afternoon36569.3%21.9%0.8%

Which weekday was most reliable for SFO to DCA?

Among qualifying SFO-to-DCA weekday results, Saturday had the highest on-time rate: 85.9% of 156 flights. Wednesday was lowest at 72.3% across 155 flights.

DayFlightsOn time30+ minCancelled
Monday15673.7%18.6%1.9%
Tuesday15982.4%10.1%0.6%
Wednesday15572.3%17.4%0.6%
Thursday15574.2%18.7%0.0%
Friday15674.4%11.5%0.6%
Saturday15685.9%7.1%0.6%
Sunday15678.8%13.5%2.6%

Which airline was most reliable for SFO to DCA?

Among qualifying SFO-to-DCA airline results, United Airlines had the highest on-time rate: 78.1% of 729 flights. Alaska Airlines was lowest at 76.1% across 364 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines72978.1%14.1%1.0%
Alaska Airlines36476.1%13.2%1.1%

Which month was most reliable for SFO to DCA?

Among qualifying SFO-to-DCA month results, December 2025 had the highest on-time rate: 87.1% of 93 flights. July 2025 was lowest at 51.6% across 93 flights.

MonthFlightsOn time30+ minCancelled
July 20259351.6%28.0%4.3%
August 20259379.6%15.1%0.0%
September 20259080.0%12.2%0.0%
October 20259378.5%11.8%0.0%
November 20258978.7%14.6%0.0%
December 20259387.1%6.5%0.0%
January 20269384.9%5.4%5.4%
February 20268375.9%15.7%0.0%
March 20269380.6%12.9%0.0%
April 20269083.3%11.1%1.1%
May 20269375.3%15.1%0.0%
June 20269073.3%17.8%1.1%

What drove SFO to DCA delay minutes?

National airspace was the largest recorded SFO-to-DCA delay category, accounting for 49.2% of 13,187 BTS-attributed delay minutes during July 2025–June 2026.

Airline15.3%
Late aircraft34.1%
National airspace49.2%
Weather0.9%
Security0.4%
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.