Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 4944 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4944 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

85%
Arrive within 15 minutes
1 min
Average arrival delay
1.8%
Cancelled
9 min early
Median arrival delay

Based on 551 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(75 flights)
  • Tue81%(77 flights)
  • Wed82%(79 flights)
  • Thu85%(78 flights)
  • Fri94%(78 flights)
  • Sat84%(77 flights)
  • Sun84%(75 flights)
On-time by departure window
  • 6–9 AM90%(192 flights)
  • 9 AM–12 PM85%(202 flights)
  • 12–3 PM76%(133 flights)
  • 6–9 PM100%(12 flights)
On-time trend by month
85%
May

Jun 92% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%52
July 202582%60
August 202590%62
September 202597%59
October 202587%62
November 202586%59
December 202581%52
January 202662%29
February 202660%25
April 202694%18
May 202685%54
Departures on time
87%
Diverted
0.4%
Flights flown
539
Months covered
12

Keep nerding

Based on 551 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.