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Flight Reliability

DL 5403 · Delta Air Lines

CSG → Atlanta (CSG–ATL)92% of its flights flew this route. The rest (ATL–CLT, PIT–JFK) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
7 min
Average arrival delay
2.6%
Cancelled
12 min early
Median arrival delay

Based on 230 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 5403 departing between 6–9 AM arrived on time 89% of the time, versus 69% between 12–3 PM.

Sunday scaries are real for this one.

DL 5403 arrived on time 100% of the time on Wednesdays and just 75% on Sundays. That gap is worth planning around.

Better than the CSG–ATL route average.

DL 5403 arrived on time 88% of the time, versus 78% across the CSG–ATL route.

A bit ahead of the Delta Air Lines network.

DL 5403 arrived on time 88% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon81%(32 flights)
  • Tue97%(31 flights)
  • Wed100%(32 flights)
  • Thu91%(32 flights)
  • Fri84%(31 flights)
  • Sat88%(34 flights)
  • Sun75%(32 flights)
On-time by departure window
  • 6–9 AM89%(206 flights)
  • 9 AM–12 PM—(5 flights)
  • 12–3 PM69%(13 flights)
On-time trend by month
94%
May

Jun 85% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%27
July 202597%31
December 202570%10
January 202683%29
February 202682%28
March 202683%29
April 202697%30
May 202694%31
Departures on time
89%
Diverted
0%
Flights flown
224
Months covered
11

Same route, other flights

Keep nerding

Based on 230 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.