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Flight Reliability

DL 986 · Delta Air Lines

Los Angeles → Austin (LAX–AUS)84% of its flights flew this route. The rest (AUS–LAX, AUS–ATL) are included in these numbers.

88
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
5 min early
Average arrival delay
1.3%
Cancelled
11 min early
Median arrival delay

Based on 378 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

DL 986 departing between 12–3 PM arrived on time 93% of the time, versus 80% between 3–6 PM.

Saturday is the weak spot.

DL 986 arrived on time 93% of the time on Mondays. On Saturdays: 80%.

Better than the LAX–AUS route average.

DL 986 arrived on time 88% of the time, versus 80% across the LAX–AUS route.

A bit ahead of the Delta Air Lines network.

DL 986 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon93%(54 flights)
  • Tue89%(55 flights)
  • Wed87%(54 flights)
  • Thu89%(54 flights)
  • Fri91%(54 flights)
  • Sat80%(49 flights)
  • Sun84%(51 flights)
On-time by departure window
  • 9 AM–12 PM87%(253 flights)
  • 12–3 PM93%(59 flights)
  • 3–6 PM80%(40 flights)
  • 6–9 PM90%(19 flights)
On-time trend by month
74%
May

Jun 72% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%29
July 202589%28
August 202584%31
September 202597%30
October 202590%30
November 202589%27
December 202597%30
January 202690%29
February 202698%40
March 202683%36
April 202687%30
May 202674%31
Departures on time
88%
Diverted
0.5%
Flights flown
371
Months covered
12

Same route, other flights

Keep nerding

Based on 378 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.