BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
GEG→SLC

Spokane, WA (GEG) to Salt Lake City, UT (SLC) flight delay odds

89.9% of 1,666 official scheduled GEG-to-SLC flights arrived on time; 5.8% arrived at least 30 minutes late and 0.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
89.9%arrived on time
5.8%30+ min late
0.7%cancelled
1,666scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.7%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-5.2 mincompleted flights

Which departure time was most reliable for GEG to SLC?

Among qualifying GEG-to-SLC departure window results, Late morning had the highest on-time rate: 95.1% of 348 flights. Afternoon was lowest at 87.3% across 545 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36591.2%6.3%0.8%
Late morning34895.1%2.3%0.6%
Afternoon54587.3%7.2%0.9%
Evening40887.7%6.6%0.2%

Which weekday was most reliable for GEG to SLC?

Among qualifying GEG-to-SLC weekday results, Thursday had the highest on-time rate: 93.3% of 239 flights. Friday was lowest at 87.2% across 243 flights.

DayFlightsOn time30+ minCancelled
Monday24789.5%5.7%1.2%
Tuesday25091.6%5.6%0.4%
Wednesday24189.2%7.1%1.2%
Thursday23993.3%4.6%0.4%
Friday24387.2%6.2%0.4%
Saturday20388.2%6.9%0.5%
Sunday24390.1%4.9%0.4%

Which airline was most reliable for GEG to SLC?

Among qualifying GEG-to-SLC airline results, SkyWest Airlines had the highest on-time rate: 93.2% of 739 flights. Delta Air Lines was lowest at 87.3% across 927 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines92787.3%7.6%0.9%
SkyWest Airlines73993.2%3.7%0.4%

Which month was most reliable for GEG to SLC?

Among qualifying GEG-to-SLC month results, May 2026 had the highest on-time rate: 95.3% of 149 flights. August 2025 was lowest at 83.3% across 144 flights.

MonthFlightsOn time30+ minCancelled
July 202514688.4%4.1%0.0%
August 202514483.3%11.1%0.7%
September 202513790.5%7.3%0.0%
October 202514688.4%8.9%0.7%
November 202513591.1%7.4%0.7%
December 202514792.5%4.1%0.7%
January 202612085.8%8.3%1.7%
February 202610690.6%8.5%0.0%
March 202614486.8%4.2%2.8%
April 202614695.2%1.4%0.0%
May 202614995.3%0.0%0.0%
June 202614690.4%6.2%0.7%

What drove GEG to SLC delay minutes?

Airline was the largest recorded GEG-to-SLC delay category, accounting for 47.3% of 13,220 BTS-attributed delay minutes during July 2025–June 2026.

Airline47.3%
Late aircraft38.9%
National airspace3.8%
Weather10.0%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.