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Route Reliability

San Diego → Detroit

SAN–DTW · 1,956 miles · San Diego International Airport to Detroit Metropolitan Wayne County Airport

89
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
1 min early
Average arrival delay
1.1%
Cancelled
1,333
Flights in the data

Data through May 2026.

Airlines on this route

  • Delta Air Lines87% on time · 1,267 flights
  • Spirit Airlines69% on time · 66 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

The late departure is the smart one here.

SAN–DTW flights departing between 9 PM–12 AM arrived on time 91% of the time, versus 77% between 9 AM–12 PM.

Saturday is the weak spot.

SAN–DTW flights arrived on time 92% of the time on Tuesdays. On Saturdays: 83%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon87%(202 flights)
  • Tue92%(178 flights)
  • Wed87%(174 flights)
  • Thu85%(201 flights)
  • Fri87%(202 flights)
  • Sat83%(155 flights)
  • Sun84%(206 flights)
On-time by departure window
  • 6–9 AM91%(362 flights)
  • 9 AM–12 PM77%(321 flights)
  • 12–3 PM85%(129 flights)
  • 3–6 PM84%(159 flights)
  • 9 PM–12 AM91%(347 flights)
On-time trend by month
94%
May

Jun 84% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%124
July 202580%132
August 202581%129
September 202586%117
October 202594%118
November 202584%107
December 202588%109
January 202689%91
February 202689%83
March 202678%91
April 202691%106
May 202694%111

Keep nerding

Based on 1,333 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.