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

Austin, TX (AUS) to Washington, DC (IAD) flight delay odds

88.3% of 1,049 official scheduled AUS-to-IAD flights arrived on time; 7.1% arrived at least 30 minutes late and 0.8% 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 SIGNALLower disruption
88.3%arrived on time
7.1%30+ min late
0.8%cancelled
1,049scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.2%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+1.8 mincompleted flights

Which departure time was most reliable for AUS to IAD?

Among qualifying AUS-to-IAD departure window results, Early morning had the highest on-time rate: 92.2% of 346 flights. Evening was lowest at 80.6% across 139 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning34692.2%2.0%1.2%
Late morning4887.5%4.2%2.1%
Afternoon51687.8%8.9%0.2%
Evening13980.6%13.7%1.4%

Which weekday was most reliable for AUS to IAD?

Among qualifying AUS-to-IAD weekday results, Tuesday had the highest on-time rate: 91.4% of 152 flights. Friday was lowest at 84.5% across 168 flights.

DayFlightsOn time30+ minCancelled
Monday17088.8%4.7%1.8%
Tuesday15291.4%6.6%0.0%
Wednesday15489.6%6.5%0.0%
Thursday15691.0%4.5%0.0%
Friday16884.5%8.9%0.6%
Saturday10686.8%9.4%0.9%
Sunday14385.3%9.8%2.1%

Which airline was most reliable for AUS to IAD?

Only United Airlines met the AUS-to-IAD airline threshold: 89.1% of 1,007 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines1,00789.1%6.5%0.8%
Allegiant Air2462.5%20.8%0.0%
Republic Airways1877.8%22.2%0.0%

Which month was most reliable for AUS to IAD?

Among qualifying AUS-to-IAD month results, September 2025 had the highest on-time rate: 97.3% of 110 flights. July 2025 was lowest at 75.0% across 96 flights.

MonthFlightsOn time30+ minCancelled
July 20259675.0%19.8%0.0%
August 202510187.1%5.9%2.0%
September 202511097.3%0.9%0.0%
October 20258995.5%2.2%0.0%
November 20257987.3%10.1%0.0%
December 20257787.0%6.5%0.0%
January 20267184.5%5.6%7.0%
February 20267692.1%5.3%0.0%
March 20269284.8%7.6%0.0%
April 20268292.7%2.4%0.0%
May 20268892.0%6.8%0.0%
June 20268883.0%11.4%1.1%

What drove AUS to IAD delay minutes?

Late aircraft was the largest recorded AUS-to-IAD delay category, accounting for 38.1% of 9,939 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.8%
Late aircraft38.1%
National airspace22.8%
Weather2.4%
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.