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Flight Reliability

DL 861 · Delta Air Lines

Indianapolis → Los Angeles (IND–LAX)84% of its flights flew this route. The rest (LAX–IND) are included in these numbers.

94
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
2 min early
Average arrival delay
0.3%
Cancelled
11 min early
Median arrival delay

Based on 366 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

DL 861 departing between 6–9 AM arrived on time 93% of the time, versus 85% between 3–6 PM.

Sunday scaries are real for this one.

DL 861 arrived on time 93% of the time on Tuesdays. On Sundays: 80%.

A bit ahead of the IND–LAX route.

DL 861 arrived on time 88% of the time, versus 84% across the IND–LAX route.

A bit ahead of the Delta Air Lines network.

DL 861 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon86%(56 flights)
  • Tue93%(57 flights)
  • Wed84%(57 flights)
  • Thu91%(54 flights)
  • Fri89%(53 flights)
  • Sat93%(41 flights)
  • Sun80%(46 flights)
On-time by departure window
  • 6–9 AM93%(59 flights)
  • 9 AM–12 PM93%(59 flights)
  • 3–6 PM85%(246 flights)
On-time trend by month
88%
Apr

Jun 96% → Apr 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%25
July 202589%26
August 202597%29
September 202593%27
October 202589%26
November 202577%22
December 202575%28
January 202685%27
February 202684%45
March 202690%61
April 202688%42
Departures on time
88%
Diverted
0.3%
Flights flown
364
Months covered
12

Same route, other flights

Keep nerding

Based on 366 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.