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

Pittsburgh, PA (PIT) to San Francisco, CA (SFO) flight delay odds

Historically, 80.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 556 flights.

HISTORICAL ROUTE SIGNALLower disruption
80.8%arrived on time
12.6%30+ min late
0.5%cancelled
556scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+2.8 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 morning30787.3%5.5%0.3%
Late morning5787.7%10.5%1.8%
Evening19268.2%24.5%0.5%

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
Monday9073.3%17.8%0.0%
Tuesday6381.0%15.9%1.6%
Wednesday7582.7%13.3%0.0%
Thursday8883.0%13.6%0.0%
Friday8583.5%9.4%1.2%
Saturday6684.8%6.1%0.0%
Sunday8978.7%11.2%1.1%

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 Airlines55680.8%12.6%0.5%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20255782.5%8.8%0.0%
August 20255485.2%5.6%0.0%
September 20255194.1%3.9%0.0%
October 20254991.8%4.1%0.0%
November 20254991.8%8.2%0.0%
December 20254470.5%25.0%2.3%
January 20263677.8%16.7%2.8%
February 20262871.4%14.3%0.0%
March 20263393.9%0.0%3.0%
April 20264372.1%18.6%0.0%
May 20265770.2%15.8%0.0%
June 20265567.3%29.1%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.

Airline21.8%
Late aircraft12.5%
National airspace63.9%
Weather1.8%
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.