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

Washington, DC (DCA) to San Diego, CA (SAN) flight delay odds

67.3% of 364 official scheduled DCA-to-SAN flights arrived on time; 15.4% arrived at least 30 minutes late and 1.6% 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 SIGNALVariable
67.3%arrived on time
15.4%30+ min late
1.6%cancelled
364scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+11.0 mincompleted flights

Which departure time was most reliable for DCA to SAN?

Among qualifying DCA-to-SAN departure window results, Early morning had the highest on-time rate: 68.3% of 319 flights. Late morning was lowest at 60.0% across 45 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning31968.3%14.7%1.6%
Late morning4560.0%20.0%2.2%

Which weekday was most reliable for DCA to SAN?

Among qualifying DCA-to-SAN weekday results, Monday had the highest on-time rate: 76.9% of 52 flights. Friday was lowest at 53.8% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday5276.9%9.6%1.9%
Tuesday5371.7%15.1%0.0%
Wednesday5265.4%19.2%0.0%
Thursday5166.7%21.6%0.0%
Friday5253.8%11.5%7.7%
Saturday5267.3%15.4%0.0%
Sunday5269.2%15.4%1.9%

Which airline was most reliable for DCA to SAN?

Only Alaska Airlines met the DCA-to-SAN airline threshold: 67.3% of 364 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines36467.3%15.4%1.6%

Which month was most reliable for DCA to SAN?

Among qualifying DCA-to-SAN month results, June 2026 had the highest on-time rate: 86.7% of 30 flights. February 2026 was lowest at 46.4% across 28 flights.

MonthFlightsOn time30+ minCancelled
July 20253167.7%12.9%0.0%
August 20253164.5%9.7%3.2%
September 20253056.7%23.3%3.3%
October 20253158.1%19.4%0.0%
November 20252965.5%10.3%3.4%
December 20253167.7%19.4%0.0%
January 20263161.3%19.4%9.7%
February 20262846.4%39.3%0.0%
March 20263177.4%16.1%0.0%
April 20263076.7%6.7%0.0%
May 20263177.4%0.0%0.0%
June 20263086.7%10.0%0.0%

What drove DCA to SAN delay minutes?

National airspace was the largest recorded DCA-to-SAN delay category, accounting for 48.9% of 5,365 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.6%
Late aircraft0.0%
National airspace48.9%
Weather13.4%
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.