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Flight Reliability

DL 1355 · Delta Air Lines

Detroit → Tampa (DTW–TPA)

72
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
15 min
Average arrival delay
1.2%
Cancelled
1 min early
Median arrival delay

Based on 337 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

DL 1355 departing between 3–6 PM arrived on time 82% of the time, versus 69% between 9 PM–12 AM.

Sunday scaries are real for this one.

DL 1355 arrived on time 82% of the time on Thursdays and just 63% on Sundays. That gap is worth planning around.

Lagging the DTW–TPA route.

DL 1355 arrived on time 72% of the time, versus 79% across the DTW–TPA route.

Lagging the Delta Air Lines network.

DL 1355 arrived on time 72% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon73%(52 flights)
  • Tue71%(44 flights)
  • Wed67%(45 flights)
  • Thu82%(51 flights)
  • Fri78%(49 flights)
  • Sat68%(41 flights)
  • Sun63%(51 flights)
On-time by departure window
  • 3–6 PM82%(44 flights)
  • 6–9 PM71%(227 flights)
  • 9 PM–12 AM69%(62 flights)
On-time trend by month
74%
May

Jun 63% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202539%28
August 202576%21
September 202591%22
October 202593%29
November 202579%29
December 202560%25
January 202658%31
February 202675%28
March 202679%29
April 202677%30
May 202674%31
Departures on time
70%
Diverted
0%
Flights flown
333
Months covered
12

Same route, other flights

Keep nerding

Based on 337 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.