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Route Reliability

Spokane → San Francisco

GEG–SFO · 733 miles · Spokane International Airport to San Francisco International Airport

80
Pretty Reliable
WanderNerd Reliability Score
76%
Arrive within 15 minutes
10 min
Average arrival delay
0.5%
Cancelled
1,009
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines79%661 flights
  2. 2.Alaska Airlines68%348 flights

What the data says

The 3–6 PM departure wins.

GEG–SFO flights departing between 3–6 PM arrived on time 82% of the time, versus 34% between 6–9 PM.

Thursday is the weak spot.

GEG–SFO flights arrived on time 81% of the time on Tuesdays. On Thursdays: 70%.

United Airlines runs this route best.

United Airlines arrived on time 79% of the time on this route; Alaska Airlines managed 68%.

Recent months have been rougher.

GEG–SFO flights arrived on time 67% of the time over the last three months in the data, compared with 75% in the three months before that.

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
  • Mon74%(151 flights)
  • Tue81%(144 flights)
  • Wed80%(143 flights)
  • Thu70%(150 flights)
  • Fri72%(152 flights)
  • Sat80%(111 flights)
  • Sun75%(149 flights)
On-time by departure window
  • 6–9 AM76%(337 flights)
  • 12–3 PM75%(423 flights)
  • 3–6 PM82%(208 flights)
  • 6–9 PM34%(32 flights)
On-time trend by month
69%
May

Jun 91% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%88
July 202572%88
August 202586%86
September 202585%82
October 202573%89
November 202574%88
December 202577%75
January 202678%69
February 202670%76
March 202681%87
April 202651%81
May 202669%91

Same trip, other airports

Keep nerding

Based on 1,009 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.