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Flight Reliability

DL 2156 · Delta Air Lines

San Jose → Minneapolis (SJC–MSP)

99
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
10 min early
Average arrival delay
0.9%
Cancelled
14 min early
Median arrival delay

Based on 347 historical flights. Data through May 2026.

What the data says

Skip Thursday if you can.

DL 2156 arrived on time 100% of the time on Wednesdays. On Thursdays: 92%.

A bit ahead of the SJC–MSP route.

DL 2156 arrived on time 95% of the time, versus 91% across the SJC–MSP route.

Better than the Delta Air Lines network average.

DL 2156 arrived on time 95% of the time, versus 81% across the Delta Air Lines network.

Ticking up lately.

DL 2156 arrived on time 94% of the time over the last three months in the data, compared with 88% in the three months before that.

The breakdown

On-time by weekday
  • Mon94%(49 flights)
  • Tue94%(52 flights)
  • Wed100%(52 flights)
  • Thu92%(50 flights)
  • Fri92%(52 flights)
  • Sat94%(52 flights)
  • Sun97%(37 flights)
On-time trend by month
97%
May

Jun 100% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202597%31
August 2025100%31
September 2025100%30
October 202594%31
November 2025100%29
December 202579%29
January 202689%27
February 202696%25
March 202688%25
April 202696%26
May 202697%30
Departures on time
93%
Diverted
0%
Flights flown
344
Months covered
12

Same route, other flights

Keep nerding

Based on 347 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.