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Flight Reliability

DL 5234 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5234 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

77%
Arrive within 15 minutes
7 min
Average arrival delay
0.7%
Cancelled
7 min early
Median arrival delay

Based on 421 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(61 flights)
  • Tue83%(63 flights)
  • Wed71%(61 flights)
  • Thu71%(58 flights)
  • Fri83%(59 flights)
  • Sat82%(51 flights)
  • Sun82%(65 flights)
On-time by departure window
  • 6–9 AM88%(24 flights)
  • 9 AM–12 PM79%(194 flights)
  • 12–3 PM73%(188 flights)
  • 3–6 PM58%(12 flights)
On-time trend by month
93%
Apr

Jun 71% → Apr 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%52
July 202594%62
August 202571%62
September 202570%60
October 202560%10
January 202669%49
February 202690%20
March 202670%46
April 202693%42
Departures on time
78%
Diverted
0%
Flights flown
418
Months covered
11

Keep nerding

Based on 421 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.