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Route Reliability

Salt Lake City → Spokane

SLC–GEG · 546 miles · Salt Lake City International Airport to Spokane International Airport

92
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
1 min
Average arrival delay
0.4%
Cancelled
1,664
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 87% of the time across 1,664 flights. No comparison to make.

What the data says

Morning flights do better here.

SLC–GEG flights departing between 6–9 AM arrived on time 96% of the time, versus 76% between 12–3 PM.

Wednesday comes out ahead.

A small edge: 91% on time on Wednesdays against 85% on Sundays.

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%(244 flights)
  • Tue86%(243 flights)
  • Wed91%(237 flights)
  • Thu90%(236 flights)
  • Fri85%(243 flights)
  • Sat90%(200 flights)
  • Sun85%(247 flights)
On-time by departure window
  • 6–9 AM96%(343 flights)
  • 9 AM–12 PM88%(358 flights)
  • 12–3 PM76%(21 flights)
  • 3–6 PM87%(567 flights)
  • 9 PM–12 AM81%(361 flights)
On-time trend by month
89%
May

Jun 85% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%144
July 202584%146
August 202586%143
September 202587%137
October 202590%144
November 202589%133
December 202584%146
January 202691%116
February 202687%104
March 202689%142
April 202689%146
May 202689%149

Keep nerding

Based on 1,664 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.