Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 1146 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1146 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

83%
Arrive within 15 minutes
2 min
Average arrival delay
0.9%
Cancelled
10 min early
Median arrival delay

Based on 556 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(78 flights)
  • Tue86%(78 flights)
  • Wed90%(77 flights)
  • Thu92%(76 flights)
  • Fri89%(80 flights)
  • Sat87%(79 flights)
  • Sun69%(80 flights)
On-time by departure window
  • 6–9 AM92%(162 flights)
  • 9 AM–12 PM83%(193 flights)
  • 12–3 PM75%(193 flights)
On-time trend by month
97%
May

Jun 70% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%53
July 202578%60
August 202590%62
September 202585%59
October 202579%62
November 202583%59
December 202568%47
January 202696%28
February 202696%28
March 202676%29
April 202697%30
May 202697%31
Departures on time
81%
Diverted
0.5%
Flights flown
548
Months covered
12

Keep nerding

Based on 556 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.