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

Atlanta, GA (ATL) to San Francisco, CA (SFO) flight delay odds

70.8% of 3,354 official scheduled ATL-to-SFO flights arrived on time; 17.3% arrived at least 30 minutes late and 0.6% 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
70.8%arrived on time
17.3%30+ min late
0.6%cancelled
3,354scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.7%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+11.0 mincompleted flights

Which departure time was most reliable for ATL to SFO?

Among qualifying ATL-to-SFO departure window results, Early morning had the highest on-time rate: 82.4% of 728 flights. Evening was lowest at 64.5% across 1,078 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning72882.4%6.7%0.5%
Late morning44371.1%16.7%0.2%
Afternoon83169.0%16.8%0.6%
Evening1,07864.5%25.0%0.7%
Night27469.7%17.2%1.1%

Which weekday was most reliable for ATL to SFO?

Among qualifying ATL-to-SFO weekday results, Tuesday had the highest on-time rate: 78.2% of 441 flights. Sunday was lowest at 62.2% across 511 flights.

DayFlightsOn time30+ minCancelled
Monday51268.4%18.9%0.6%
Tuesday44178.2%12.5%0.2%
Wednesday44475.0%14.0%0.2%
Thursday50673.3%16.6%0.2%
Friday50567.3%19.6%0.6%
Saturday43572.9%14.9%0.9%
Sunday51162.2%22.9%1.6%

Which airline was most reliable for ATL to SFO?

Among qualifying ATL-to-SFO airline results, United Airlines had the highest on-time rate: 77.9% of 637 flights. Frontier Airlines was lowest at 65.5% across 307 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,41069.6%17.3%0.6%
United Airlines63777.9%13.8%0.3%
Frontier Airlines30765.5%23.8%1.3%

Which month was most reliable for ATL to SFO?

Among qualifying ATL-to-SFO month results, March 2026 had the highest on-time rate: 84.8% of 282 flights. June 2026 was lowest at 55.6% across 304 flights.

MonthFlightsOn time30+ minCancelled
July 202531970.8%19.4%0.3%
August 202530568.9%18.4%0.3%
September 202527780.9%7.9%0.0%
October 202530671.9%14.7%0.3%
November 202528775.3%15.3%0.7%
December 202526970.3%21.6%1.5%
January 202621772.4%13.8%1.8%
February 202622074.1%10.5%0.0%
March 202628284.8%10.3%2.1%
April 202628369.6%15.5%0.0%
May 202628557.5%27.7%0.4%
June 202630455.6%28.6%0.3%

What drove ATL to SFO delay minutes?

National airspace was the largest recorded ATL-to-SFO delay category, accounting for 42.8% of 55,617 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.8%
Late aircraft15.0%
National airspace42.8%
Weather4.5%
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.