OnTimeRoutes
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Delta Air Lines GEG to SLC on-time performance

Delta Air Lines nonstop flights from Spokane to Salt Lake City · Aug 2025 – Jul 2026

On-time arrivals
88%
arrived < 15 min late
Cancelled
0.8%
8 flights
Avg arrival delay
12 min
92 min when late
Rank on route
#2 of 2
route average 91% on time

Key facts

  • Delta Air Lines flights on GEG to SLC arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 0.8% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 91% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (51%).

On-time trend by month

60%80%100%July 2025: 87.1% on time, 0.0% cancelledJul ’25August 2025: 77.6% on time, 1.1% cancelledAug ’25September 2025: 91.4% on time, 0.0% cancelledSep ’25October 2025: 89.8% on time, 1.1% cancelledOct ’25November 2025: 88.8% on time, 1.2% cancelledNov ’25December 2025: 91.0% on time, 1.1% cancelledDec ’25January 2026: 80.0% on time, 0.0% cancelledJan ’26February 2026: 92.9% on time, 0.0% cancelledFeb ’26March 2026: 86.9% on time, 4.7% cancelledMar ’26April 2026: 93.2% on time, 0.0% cancelledApr ’26May 2026: 92.8% on time, 0.0% cancelledMay ’26June 2026: 88.8% on time, 0.9% cancelledJun ’26July 2026: 84.6% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft51%
  • Airline (crew, maintenance, cleaning, fueling)45%
  • Air traffic control & airport congestion4%
  • Extreme weather1%
  • Security0%

Other airlines on GEG to SLC

952 Delta Air Lines flights tracked on this route; 8 cancelled, 2 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.