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Flight Reliability

DL 1687 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1687 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

71%
Arrive within 15 minutes
20 min
Average arrival delay
3.9%
Cancelled
2 min early
Median arrival delay

Based on 414 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(61 flights)
  • Tue72%(50 flights)
  • Wed81%(47 flights)
  • Thu73%(66 flights)
  • Fri60%(62 flights)
  • Sat77%(47 flights)
  • Sun63%(62 flights)
On-time by departure window
  • 6–9 AM88%(24 flights)
  • 9 AM–12 PM91%(46 flights)
  • 12–3 PM91%(22 flights)
  • 3–6 PM65%(158 flights)
  • 6–9 PM65%(145 flights)
On-time trend by month
68%
May

Jun 47% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%36
July 202548%44
August 202567%42
September 202571%42
October 202572%47
November 202579%43
December 202573%30
January 202684%25
February 202693%45
March 202686%14
May 202668%25
Departures on time
70%
Diverted
0.7%
Flights flown
395
Months covered
12

Keep nerding

Based on 414 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.