Skip to content
WanderNerd
Check a flight

Route Reliability

Austin → Washington

AUS–IAD · 1,297 miles · Austin–Bergstrom International Airport to Washington Dulles International Airport

93
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
2 min
Average arrival delay
0.8%
Cancelled
1,144
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines89% on time · 1,125 flights
  • Allegiant Air79% on time · 19 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

AUS–IAD flights departing between 6–9 AM arrived on time 94% of the time, versus 83% between 3–6 PM.

Sunday scaries are real for this one.

AUS–IAD flights arrived on time 92% of the time on Tuesdays. On Sundays: 85%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon89%(169 flights)
  • Tue92%(154 flights)
  • Wed91%(158 flights)
  • Thu90%(163 flights)
  • Fri87%(172 flights)
  • Sat89%(152 flights)
  • Sun85%(163 flights)
On-time by departure window
  • 6–9 AM94%(342 flights)
  • 9 AM–12 PM91%(87 flights)
  • 12–3 PM90%(348 flights)
  • 3–6 PM83%(354 flights)
On-time trend by month
93%
May

Jun 83% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%115
July 202574%99
August 202589%105
September 202597%111
October 202597%93
November 202588%89
December 202589%93
January 202688%76
February 202694%77
March 202687%91
April 202692%89
May 202693%93

Same trip, other airports

Keep nerding

Based on 1,144 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.