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Flight Reliability

DL 3134 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3134 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

86%
Arrive within 15 minutes
1 min
Average arrival delay
0.7%
Cancelled
9 min early
Median arrival delay

Based on 715 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(102 flights)
  • Tue88%(104 flights)
  • Wed92%(104 flights)
  • Thu84%(101 flights)
  • Fri83%(98 flights)
  • Sat83%(93 flights)
  • Sun85%(103 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM84%(344 flights)
  • 3–6 PM87%(352 flights)
  • 6–9 PM—(8 flights)
On-time trend by month
81%
May

Jun 75% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%59
July 202587%60
August 202588%59
September 202592%60
October 202593%61
November 202586%56
December 202580%60
January 202689%54
February 202692%52
March 202679%62
April 202687%60
May 202681%62
Departures on time
84%
Diverted
0.7%
Flights flown
705
Months covered
12

Keep nerding

Based on 715 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.