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

Salt Lake City, UT (SLC) to San Francisco, CA (SFO) flight delay odds

68.3% of 3,472 official scheduled SLC-to-SFO flights arrived on time; 20.5% arrived at least 30 minutes late and 1.0% 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 SIGNALVariable
68.3%arrived on time
20.5%30+ min late
1.0%cancelled
3,472scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.2%all scheduled flights
120+ minutes late3.7%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+12.3 mincompleted flights

Which departure time was most reliable for SLC to SFO?

Among qualifying SLC-to-SFO departure window results, Early morning had the highest on-time rate: 76.2% of 780 flights. Evening was lowest at 56.8% across 622 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning78076.2%14.1%0.6%
Late morning54757.4%27.4%0.4%
Afternoon1,15973.8%17.5%1.0%
Evening62256.8%31.7%2.1%
Night36470.1%14.3%0.3%

Which weekday was most reliable for SLC to SFO?

Among qualifying SLC-to-SFO weekday results, Tuesday had the highest on-time rate: 75.7% of 470 flights. Monday was lowest at 61.6% across 529 flights.

DayFlightsOn time30+ minCancelled
Monday52961.6%23.8%1.5%
Tuesday47075.7%13.8%0.9%
Wednesday47768.6%19.7%0.6%
Thursday51466.0%23.2%0.4%
Friday52569.0%19.8%1.1%
Saturday43175.6%16.7%0.7%
Sunday52663.7%25.1%1.3%

Which airline was most reliable for SLC to SFO?

Among qualifying SLC-to-SFO airline results, United Airlines had the highest on-time rate: 76.4% of 484 flights. Frontier Airlines was lowest at 65.2% across 178 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,70666.6%19.4%0.9%
SkyWest Airlines1,10467.8%22.4%1.3%
United Airlines48476.4%18.0%0.2%
Frontier Airlines17865.2%26.4%1.7%

Which month was most reliable for SLC to SFO?

Among qualifying SLC-to-SFO month results, March 2026 had the highest on-time rate: 83.1% of 325 flights. June 2026 was lowest at 41.9% across 291 flights.

MonthFlightsOn time30+ minCancelled
July 202531476.1%14.3%0.6%
August 202529581.0%6.8%0.3%
September 202525080.4%10.0%0.0%
October 202528370.3%19.1%0.0%
November 202526570.6%17.7%2.3%
December 202529571.5%19.7%1.7%
January 202626977.0%13.0%1.9%
February 202628474.6%16.5%0.4%
March 202632583.1%12.0%0.9%
April 202629449.0%31.3%1.4%
May 202630745.6%38.8%1.0%
June 202629141.9%45.0%1.0%

What drove SLC to SFO delay minutes?

National airspace was the largest recorded SLC-to-SFO delay category, accounting for 51.6% of 68,145 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.3%
Late aircraft21.0%
National airspace51.6%
Weather1.1%
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.