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Route Reliability

Spokane → Sacramento

GEG–SMF · 649 miles · Spokane International Airport to Sacramento International Airport

94
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
1 min early
Average arrival delay
0.2%
Cancelled
656
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 87% of the time across 656 flights. No comparison to make.

What the data says

Morning flights do better here.

GEG–SMF flights departing between 3–6 AM arrived on time 99% of the time, versus 67% between 6–9 PM.

Friday is doing you no favors.

GEG–SMF flights arrived on time 92% of the time on Wednesdays. On Fridays: 83%.

It basically never cancels.

Out of 656 scheduled flights, only 0.2% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon85%(106 flights)
  • Tue90%(86 flights)
  • Wed92%(83 flights)
  • Thu91%(103 flights)
  • Fri83%(105 flights)
  • Sat88%(66 flights)
  • Sun84%(105 flights)
On-time by departure window
  • 3–6 AM99%(211 flights)
  • 6–9 AM95%(145 flights)
  • 9 AM–12 PM86%(14 flights)
  • 12–3 PM82%(44 flights)
  • 3–6 PM71%(178 flights)
  • 6–9 PM67%(36 flights)
  • 9 PM–12 AM96%(26 flights)
On-time trend by month
92%
May

Jun 83% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%77
July 202583%84
August 202587%60
September 202587%55
October 202584%57
November 202588%48
December 202589%46
January 202693%40
February 202693%43
March 202688%49
April 202687%47
May 202692%48

Keep nerding

Based on 656 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.