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Flight Reliability

DL 1433 · Delta Air Lines

Minneapolis → Detroit (MSP–DTW)

97
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
3 min early
Average arrival delay
0.6%
Cancelled
8 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 96% of the time, against 89% between 6–9 AM.

Friday is doing you no favors.

DL 1433 arrived on time 96% of the time on Thursdays. On Fridays: 88%.

Better than the MSP–DTW route average.

DL 1433 arrived on time 91% of the time, versus 83% across the MSP–DTW route.

Better than the Delta Air Lines network average.

DL 1433 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon89%(52 flights)
  • Tue94%(52 flights)
  • Wed90%(52 flights)
  • Thu96%(52 flights)
  • Fri88%(50 flights)
  • Sat90%(51 flights)
  • Sun89%(52 flights)
On-time by departure window
  • 6–9 AM89%(267 flights)
  • 9 AM–12 PM96%(94 flights)
On-time trend by month
94%
May

Jun 87% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202590%31
August 202584%31
September 2025100%30
October 2025100%30
November 202593%29
December 202571%31
January 202690%30
February 202693%28
March 202693%30
April 202697%30
May 202694%31
Departures on time
90%
Diverted
0%
Flights flown
361
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.