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

Los Angeles, CA (LAX) to Washington, DC (DCA) flight delay odds

78.3% of 1,457 official scheduled LAX-to-DCA flights arrived on time; 13.2% arrived at least 30 minutes late and 1.2% 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
78.3%arrived on time
13.2%30+ min late
1.2%cancelled
1,457scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.8%all scheduled flights
120+ minutes late3.6%all scheduled flights
Diverted1.0%did not reach as scheduled
Average arrival+3.9 mincompleted flights

Which departure time was most reliable for LAX to DCA?

Among qualifying LAX-to-DCA departure window results, Early morning had the highest on-time rate: 82.3% of 728 flights. Afternoon was lowest at 73.4% across 582 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning72882.3%9.1%1.2%
Late morning14778.2%13.6%0.0%
Afternoon58273.4%18.2%1.5%

Which weekday was most reliable for LAX to DCA?

Among qualifying LAX-to-DCA weekday results, Saturday had the highest on-time rate: 83.7% of 208 flights. Sunday was lowest at 73.6% across 208 flights.

DayFlightsOn time30+ minCancelled
Monday20879.3%15.4%1.0%
Tuesday21283.0%9.9%0.9%
Wednesday20875.0%15.9%1.0%
Thursday20580.0%8.8%1.5%
Friday20873.6%15.4%0.5%
Saturday20883.7%11.1%1.4%
Sunday20873.6%15.9%2.4%

Which airline was most reliable for LAX to DCA?

Among qualifying LAX-to-DCA airline results, American Airlines had the highest on-time rate: 80.1% of 730 flights. Alaska Airlines was lowest at 74.5% across 364 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines73080.1%11.1%1.1%
Alaska Airlines36474.5%19.0%0.8%
Delta Air Lines36378.5%11.6%1.9%

Which month was most reliable for LAX to DCA?

Among qualifying LAX-to-DCA month results, October 2025 had the highest on-time rate: 89.5% of 124 flights. July 2025 was lowest at 63.7% across 124 flights.

MonthFlightsOn time30+ minCancelled
July 202512463.7%24.2%1.6%
August 202512482.3%10.5%0.8%
September 202512080.0%10.8%0.0%
October 202512489.5%4.0%0.0%
November 202511874.6%15.3%0.8%
December 202512383.7%13.0%0.8%
January 202612479.0%9.7%6.5%
February 202611273.2%16.1%0.0%
March 202612473.4%15.3%0.0%
April 202612081.7%12.5%0.8%
May 202612483.1%9.7%2.4%
June 202612075.0%17.5%0.8%

What drove LAX to DCA delay minutes?

Airline was the largest recorded LAX-to-DCA delay category, accounting for 43.8% of 21,707 BTS-attributed delay minutes during July 2025–June 2026.

Airline43.8%
Late aircraft25.4%
National airspace30.7%
Weather0.1%
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.