Skip to content
WanderNerd
Check a flight

Route Reliability

Denver → Spokane

DEN–GEG · 836 miles · Denver International Airport to Spokane International Airport

82
Pretty Reliable
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
2,061
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Frontier Airlines84%121 flights
  2. 2.United Airlines79%1,083 flights
  3. 3.Southwest Airlines71%857 flights

What the data says

The 12–3 PM departure wins.

DEN–GEG flights departing between 12–3 PM arrived on time 90% of the time, versus 52% between 9 PM–12 AM.

Friday is doing you no favors.

DEN–GEG flights arrived on time 79% of the time on Wednesdays. On Fridays: 70%.

Frontier Airlines runs this route best.

Frontier Airlines arrived on time 84% of the time on this route; Southwest Airlines managed 71%.

It basically never cancels.

Out of 2,061 scheduled flights, only 0.3% were cancelled.

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
  • Mon75%(280 flights)
  • Tue78%(279 flights)
  • Wed79%(263 flights)
  • Thu76%(314 flights)
  • Fri70%(288 flights)
  • Sat77%(285 flights)
  • Sun75%(341 flights)
On-time by departure window
  • 12–3 AM—(2 flights)
  • 6–9 AM88%(359 flights)
  • 9 AM–12 PM82%(489 flights)
  • 12–3 PM90%(281 flights)
  • 3–6 PM65%(200 flights)
  • 6–9 PM66%(509 flights)
  • 9 PM–12 AM52%(210 flights)
On-time trend by month
73%
May

Jun 63% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%187
July 202563%196
August 202574%186
September 202586%183
October 202583%163
November 202583%160
December 202569%175
January 202683%163
February 202678%147
March 202669%153
April 202688%165
May 202673%172

Keep nerding

Based on 2,061 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.