Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 525 · United Airlines

Austin → Washington (AUS–IAD)95% of its flights flew this route. The rest (DEN–TUS) are included in these numbers.

97
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
7 min early
Average arrival delay
0.9%
Cancelled
12 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 94% of the time, against 90% between 12–3 PM.

Skip Monday if you can.

UA 525 arrived on time 98% of the time on Wednesdays. On Mondays: 88%.

A bit ahead of the AUS–IAD route.

UA 525 arrived on time 94% of the time, versus 89% across the AUS–IAD route.

Better than the United Airlines network average.

UA 525 arrived on time 94% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue98%(43 flights)
  • Wed98%(46 flights)
  • Thu92%(52 flights)
  • Fri89%(52 flights)
  • Sat96%(49 flights)
  • Sun96%(51 flights)
On-time by departure window
  • 6–9 AM94%(323 flights)
  • 12–3 PM90%(19 flights)
On-time trend by month
94%
May

Jun 90% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202587%31
August 202593%29
September 2025100%27
October 2025100%31
November 202593%30
December 202584%31
January 202695%21
February 2026100%22
March 202697%29
April 202693%30
May 202694%31
Departures on time
92%
Diverted
0.3%
Flights flown
342
Months covered
12

Same route, other flights

Keep nerding

Based on 346 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.