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

San Francisco, CA (SFO) to Eugene, OR (EUG) flight delay odds

Historically, 78.0% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 997 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.0%arrived on time
15.3%30+ min late
0.5%cancelled
997scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.0%all scheduled flights
120+ minutes late3.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+8.4 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
Late morning36582.5%14.2%0.0%
Afternoon27378.8%13.9%0.7%
Night35072.3%18.0%0.9%

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
Monday14571.0%17.2%0.0%
Tuesday14582.8%9.7%0.7%
Wednesday13880.4%15.2%0.7%
Thursday14271.8%19.0%0.7%
Friday14376.2%17.5%0.0%
Saturday14086.4%10.7%0.0%
Sunday14477.8%18.1%1.4%

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 Airlines74980.6%13.8%0.1%
SkyWest Airlines24870.2%20.2%1.6%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20259277.2%15.2%0.0%
August 20259388.2%6.5%1.1%
September 20259083.3%11.1%0.0%
October 20259383.9%8.6%0.0%
November 20259183.5%9.9%0.0%
December 20259171.4%18.7%3.3%
January 20266384.1%12.7%0.0%
February 20265488.9%9.3%0.0%
March 20266583.1%12.3%0.0%
April 20269076.7%16.7%0.0%
May 20268675.6%17.4%1.2%
June 20268947.2%42.7%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.

Airline36.2%
Late aircraft47.1%
National airspace16.6%
Weather0.0%
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.