Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 1455 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1455 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

78%
Arrive within 15 minutes
11 min
Average arrival delay
0.4%
Cancelled
1 min early
Median arrival delay

Based on 524 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(73 flights)
  • Tue82%(74 flights)
  • Wed87%(74 flights)
  • Thu68%(75 flights)
  • Fri73%(73 flights)
  • Sat80%(73 flights)
  • Sun81%(78 flights)
On-time by departure window
  • 6–9 AM83%(285 flights)
  • 12–3 PM73%(233 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
86%
May

Jun 62% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%53
July 202567%61
August 202573%59
September 202595%60
October 202587%62
November 202579%38
December 202559%41
January 202669%35
February 202696%28
April 202690%20
May 202686%56
Departures on time
82%
Diverted
0.4%
Flights flown
520
Months covered
12

Keep nerding

Based on 524 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.