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Flight Reliability

DL 2603 · Delta Air Lines

Detroit → New York (DTW–LGA)

53
A Little Dicey
WanderNerd Reliability Score
74%
Arrive within 15 minutes
13 min
Average arrival delay
6.3%
Cancelled
3 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Thursdays have been rough.

DL 2603 arrived on time 86% of the time on Saturdays and just 63% on Thursdays. That gap is worth planning around.

Lagging the Delta Air Lines network.

DL 2603 arrived on time 74% of the time, versus 81% across the Delta Air Lines network.

Keep a backup plan handy.

DL 2603 was cancelled 6.3% of the time. Typical for U.S. flights is around 1–2%.

Slipping a little lately.

DL 2603 arrived on time 67% of the time over the last three months in the data, compared with 73% in the three months before that.

The breakdown

On-time by weekday
  • Mon67%(46 flights)
  • Tue75%(51 flights)
  • Wed71%(49 flights)
  • Thu63%(49 flights)
  • Fri81%(47 flights)
  • Sat86%(49 flights)
  • Sun75%(47 flights)
On-time by departure window
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM74%(337 flights)
On-time trend by month
86%
May

Jun 59% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202573%26
August 202574%31
September 202597%30
October 202590%30
November 202569%29
December 202558%26
January 202676%29
February 202685%26
March 202652%23
April 202663%30
May 202686%29
Departures on time
71%
Diverted
0.6%
Flights flown
338
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.