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

Austin, TX (AUS) to San Francisco, CA (SFO) flight delay odds

Historically, 74.1% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,795 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
74.1%arrived on time
16.8%30+ min late
0.9%cancelled
2,795scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.9%all scheduled flights
120+ minutes late3.0%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+8.1 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning82884.4%10.0%0.7%
Late morning72973.0%17.1%0.8%
Afternoon83469.7%19.4%0.8%
Evening40464.4%24.5%1.2%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday42470.5%19.1%1.2%
Tuesday39281.1%13.0%0.5%
Wednesday39073.1%17.9%0.5%
Thursday41872.5%17.2%1.0%
Friday41972.6%18.1%0.5%
Saturday34582.3%8.4%0.9%
Sunday40768.6%22.1%1.5%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines1,65578.1%15.3%0.8%
Delta Air Lines44465.8%20.3%1.1%
Alaska Airlines34477.6%13.1%1.2%
Southwest Airlines34462.2%23.5%0.6%
SkyWest Airlines875.0%0.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202524169.7%17.8%2.9%
August 202525184.9%7.6%0.8%
September 202522883.3%7.5%0.0%
October 202525284.1%9.5%0.8%
November 202525180.9%12.7%0.8%
December 202526182.8%13.4%0.8%
January 202620374.9%13.3%3.4%
February 202618276.9%13.7%0.0%
March 202621084.8%9.0%0.5%
April 202622060.0%26.4%0.0%
May 202625353.0%36.0%0.4%
June 202624355.1%32.5%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline21.5%
Late aircraft32.4%
National airspace44.9%
Weather1.0%
Security0.3%
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.