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Flight Reliability

DL 5459 · Delta Air Lines

New York → Savannah (JFK–SAV)90% of its flights flew this route. The rest (DTW–CVG) are included in these numbers.

53
A Little Dicey
WanderNerd Reliability Score
77%
Arrive within 15 minutes
8 min
Average arrival delay
7.8%
Cancelled
11 min early
Median arrival delay

Based on 345 historical flights. Data through May 2026.

What the data says

12–3 PM has a slight edge.

Departures between 12–3 PM arrived on time 83% of the time, against 77% between 6–9 PM.

Sunday scaries are real for this one.

DL 5459 arrived on time 89% of the time on Saturdays and just 57% on Sundays. That gap is worth planning around.

A bit behind the JFK–SAV route.

DL 5459 arrived on time 77% of the time, versus 81% across the JFK–SAV route.

A bit behind the Delta Air Lines network.

DL 5459 arrived on time 77% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon70%(46 flights)
  • Tue81%(47 flights)
  • Wed82%(45 flights)
  • Thu80%(44 flights)
  • Fri83%(46 flights)
  • Sat89%(45 flights)
  • Sun57%(44 flights)
On-time by departure window
  • 12–3 PM83%(36 flights)
  • 6–9 PM77%(281 flights)
On-time trend by month
67%
May

Jun 54% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%24
July 202567%21
August 202590%30
September 202579%29
October 202583%30
November 202574%27
December 202550%18
January 202691%22
February 202689%26
March 202687%30
April 202683%30
May 202667%30
Departures on time
76%
Diverted
0.3%
Flights flown
317
Months covered
12

Same route, other flights

Keep nerding

Based on 345 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.