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Route Reliability

Spokane → Las Vegas

GEG–LAS · 806 miles · Spokane International Airport to Harry Reid International Airport

91
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min early
Average arrival delay
0.4%
Cancelled
856
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Southwest Airlines88%750 flights
  2. 2.Allegiant Air67%106 flights

What the data says

Morning flights do better here.

GEG–LAS flights departing between 3–6 AM arrived on time 97% of the time, versus 63% between 9 PM–12 AM.

Friday is doing you no favors.

GEG–LAS flights arrived on time 93% of the time on Saturdays and just 75% on Fridays. That gap is worth planning around.

Southwest Airlines has a clear lead on this route.

Southwest Airlines arrived on time 88% of the time on this route; Allegiant Air managed 67%.

Flights on this route

The breakdown

On-time by weekday
  • Mon91%(105 flights)
  • Tue91%(106 flights)
  • Wed91%(104 flights)
  • Thu80%(151 flights)
  • Fri75%(102 flights)
  • Sat93%(120 flights)
  • Sun80%(164 flights)
On-time by departure window
  • 3–6 AM97%(144 flights)
  • 6–9 AM96%(195 flights)
  • 9 AM–12 PM90%(87 flights)
  • 12–3 PM80%(209 flights)
  • 3–6 PM72%(142 flights)
  • 6–9 PM76%(21 flights)
  • 9 PM–12 AM63%(54 flights)
On-time trend by month
84%
May

Jun 93% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%68
July 202587%69
August 202579%70
September 202582%68
October 202576%75
November 202590%72
December 202587%76
January 202690%70
February 202686%63
March 202686%80
April 202683%71
May 202684%70

Keep nerding

Based on 856 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.