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

Spokane, WA (GEG) to San Francisco, CA (SFO) flight delay odds

73.4% of 873 official scheduled GEG-to-SFO flights arrived on time; 17.1% arrived at least 30 minutes late and 0.1% 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 SIGNALGenerally reliable
73.4%arrived on time
17.1%30+ min late
0.1%cancelled
873scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.6%all scheduled flights
120+ minutes late4.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+11.4 mincompleted flights

Which departure time was most reliable for GEG to SFO?

Among qualifying GEG-to-SFO departure window results, Afternoon had the highest on-time rate: 76.8% of 513 flights. Early morning was lowest at 73.0% across 337 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning33773.0%13.1%0.0%
Afternoon51376.8%16.6%0.0%

Which weekday was most reliable for GEG to SFO?

Among qualifying GEG-to-SFO weekday results, Saturday had the highest on-time rate: 83.8% of 99 flights. Thursday was lowest at 67.4% across 135 flights.

DayFlightsOn time30+ minCancelled
Monday13470.1%23.1%0.0%
Tuesday12582.4%13.6%0.0%
Wednesday12176.0%14.9%0.0%
Thursday13567.4%17.8%0.7%
Friday13269.7%18.9%0.0%
Saturday9983.8%7.1%0.0%
Sunday12767.7%21.3%0.0%

Which airline was most reliable for GEG to SFO?

Among qualifying GEG-to-SFO airline results, SkyWest Airlines had the highest on-time rate: 73.6% of 821 flights. United Airlines was lowest at 71.2% across 52 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines82173.6%17.2%0.1%
United Airlines5271.2%15.4%0.0%

Which month was most reliable for GEG to SFO?

Among qualifying GEG-to-SFO month results, December 2025 had the highest on-time rate: 85.5% of 62 flights. April 2026 was lowest at 50.8% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20258771.3%19.5%0.0%
August 20258684.9%9.3%0.0%
September 20258284.1%8.5%0.0%
October 20258970.8%22.5%0.0%
November 20257978.5%12.7%0.0%
December 20256285.5%4.8%0.0%
January 20264477.3%9.1%0.0%
February 20265269.2%15.4%0.0%
March 20265881.0%12.1%0.0%
April 20266150.8%37.7%0.0%
May 20267569.3%20.0%1.3%
June 20269860.2%27.6%0.0%

What drove GEG to SFO delay minutes?

National airspace was the largest recorded GEG-to-SFO delay category, accounting for 48.7% of 17,085 BTS-attributed delay minutes during July 2025–June 2026.

Airline22.9%
Late aircraft19.3%
National airspace48.7%
Weather9.0%
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.