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Flight Reliability

DL 2178 · Delta Air Lines

San Francisco → Minneapolis (SFO–MSP)

98
Nerd Approved
WanderNerd Reliability Score
96%
Arrive within 15 minutes
8 min early
Average arrival delay
1.4%
Cancelled
14 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Thursday has been the better bet.

A small edge: 100% on time on Thursdays against 94% on Mondays.

Better than the SFO–MSP route average.

DL 2178 arrived on time 96% of the time, versus 86% across the SFO–MSP route.

Better than the Delta Air Lines network average.

DL 2178 arrived on time 96% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon94%(50 flights)
  • Tue94%(51 flights)
  • Wed94%(52 flights)
  • Thu100%(51 flights)
  • Fri94%(52 flights)
  • Sat96%(51 flights)
  • Sun96%(52 flights)
On-time by departure window
  • 3–6 AM96%(90 flights)
  • 6–9 AM96%(269 flights)
On-time trend by month
100%
May

Jun 97% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%29
July 2025100%31
August 202587%31
September 202590%30
October 2025100%31
November 2025100%29
December 202587%31
January 202697%30
February 2026100%28
March 202693%29
April 202697%30
May 2026100%30
Departures on time
96%
Diverted
0%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.