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

San Diego, CA (SAN) to Eugene, OR (EUG) flight delay odds

Historically, 77.9% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 412 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.9%arrived on time
12.4%30+ min late
0.7%cancelled
412scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.6%all scheduled flights
120+ minutes late0.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+1.8 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 morning7087.1%11.4%0.0%
Late morning9876.5%11.2%0.0%
Afternoon20273.3%13.9%1.5%
Evening4288.1%9.5%0.0%

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
Monday6282.3%11.3%1.6%
Tuesday5375.5%15.1%0.0%
Wednesday4883.3%6.2%0.0%
Thursday5978.0%11.9%3.4%
Friday6373.0%17.5%0.0%
Saturday6484.4%10.9%0.0%
Sunday6369.8%12.7%0.0%

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
SkyWest Airlines22881.1%11.8%0.4%
Southwest Airlines11175.7%12.6%0.0%
Alaska Airlines7371.2%13.7%2.7%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20253187.1%6.5%0.0%
August 20253177.4%12.9%0.0%
September 20253070.0%10.0%6.7%
October 20253167.7%22.6%0.0%
November 20251573.3%26.7%0.0%
December 20254278.6%19.0%0.0%
January 2026944.4%11.1%11.1%
February 20261776.5%5.9%0.0%
March 20263786.5%10.8%0.0%
April 20263387.9%3.0%0.0%
May 20265791.2%7.0%0.0%
June 20267968.4%15.2%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.

Airline24.0%
Late aircraft58.3%
National airspace16.6%
Weather0.2%
Security0.9%
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.