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

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

76.5% of 3,471 official scheduled SFO-to-SLC flights arrived on time; 14.8% arrived at least 30 minutes late and 0.9% 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
76.5%arrived on time
14.8%30+ min late
0.9%cancelled
3,471scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.7%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+7.9 mincompleted flights

Which departure time was most reliable for SFO to SLC?

Among qualifying SFO-to-SLC departure window results, Early morning had the highest on-time rate: 94.2% of 651 flights. Afternoon was lowest at 66.0% across 1,226 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning65194.2%2.9%0.5%
Late morning54678.6%14.1%1.1%
Afternoon1,22666.0%20.7%1.1%
Evening1,04776.8%15.7%0.8%

Which weekday was most reliable for SFO to SLC?

Among qualifying SFO-to-SLC weekday results, Saturday had the highest on-time rate: 82.8% of 431 flights. Monday was lowest at 69.9% across 529 flights.

DayFlightsOn time30+ minCancelled
Monday52969.9%19.1%1.7%
Tuesday46980.0%12.2%0.4%
Wednesday47779.0%14.5%0.4%
Thursday51175.5%16.6%0.4%
Friday52874.4%14.4%1.1%
Saturday43182.8%10.0%0.9%
Sunday52675.5%15.8%1.1%

Which airline was most reliable for SFO to SLC?

Among qualifying SFO-to-SLC airline results, Delta Air Lines had the highest on-time rate: 77.4% of 1,708 flights. Frontier Airlines was lowest at 69.1% across 178 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,70877.4%14.1%0.9%
SkyWest Airlines1,10376.2%14.9%1.2%
United Airlines48276.6%14.5%0.2%
Frontier Airlines17869.1%21.9%1.1%

Which month was most reliable for SFO to SLC?

Among qualifying SFO-to-SLC month results, September 2025 had the highest on-time rate: 87.6% of 250 flights. June 2026 was lowest at 61.2% across 291 flights.

MonthFlightsOn time30+ minCancelled
July 202531475.5%13.7%0.0%
August 202529483.3%9.2%0.3%
September 202525087.6%6.4%0.0%
October 202528481.7%11.3%0.0%
November 202526579.2%10.6%2.3%
December 202529470.7%21.4%1.0%
January 202627080.4%11.9%2.6%
February 202628577.5%13.3%0.4%
March 202632487.3%8.0%0.9%
April 202629470.1%19.7%1.4%
May 202630665.0%26.1%1.0%
June 202629161.2%24.4%1.0%

What drove SFO to SLC delay minutes?

Late aircraft was the largest recorded SFO-to-SLC delay category, accounting for 51.6% of 54,603 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.3%
Late aircraft51.6%
National airspace14.7%
Weather1.4%
Security0.1%
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.