Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 2631 · Delta Air Lines

Fort Lauderdale → Detroit (FLL–DTW)

94
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
3 min early
Average arrival delay
1.6%
Cancelled
11 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 2631 departing between 6–9 AM arrived on time 94% of the time, versus 67% between 12–3 PM.

Friday has been the better bet.

A small edge: 94% on time on Fridays against 90% on Tuesdays.

Well ahead of the FLL–DTW route.

DL 2631 arrived on time 93% of the time, versus 74% across the FLL–DTW route.

Better than the Delta Air Lines network average.

DL 2631 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon92%(52 flights)
  • Tue90%(49 flights)
  • Wed94%(51 flights)
  • Thu92%(52 flights)
  • Fri94%(52 flights)
  • Sat90%(52 flights)
  • Sun94%(51 flights)
On-time by departure window
  • 6–9 AM94%(341 flights)
  • 12–3 PM67%(18 flights)
On-time trend by month
100%
May

Jun 96% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%28
July 202597%31
August 202597%31
September 2025100%30
October 202597%31
November 202597%29
December 202567%30
January 202693%30
February 202689%28
March 202683%30
April 202693%30
May 2026100%31
Departures on time
93%
Diverted
0%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.