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

Santa Ana, CA (SNA) to Seattle, WA (SEA) flight delay odds

Historically, 84.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 3,965 flights.

HISTORICAL ROUTE SIGNALLower disruption
84.5%arrived on time
7.7%30+ min late
1.2%cancelled
3,965scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.4%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.2%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 morning1,09190.7%3.6%1.0%
Late morning75287.5%7.3%1.3%
Afternoon99482.3%9.7%0.5%
Evening1,00177.0%11.4%1.4%
Night12789.8%1.6%6.3%

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
Monday60484.6%7.5%1.0%
Tuesday55585.9%5.6%0.9%
Wednesday53788.5%7.1%0.0%
Thursday59483.2%8.4%0.8%
Friday59381.1%9.8%2.0%
Saturday49088.2%5.9%1.8%
Sunday59281.2%9.3%1.9%

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
Alaska Airlines2,60686.3%6.3%1.3%
Delta Air Lines95480.0%12.8%1.3%
SkyWest Airlines40583.7%5.2%0.2%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202537878.6%8.5%2.1%
August 202535874.3%13.4%0.8%
September 202533088.2%5.2%0.6%
October 202534185.3%8.2%2.1%
November 202532990.9%4.3%1.2%
December 202531979.3%11.6%1.3%
January 202631288.5%5.4%1.6%
February 202628288.3%5.7%1.4%
March 202630882.8%7.8%2.6%
April 202630189.7%5.3%0.3%
May 202635390.7%4.5%0.3%
June 202635480.2%11.6%0.3%

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.

Airline36.7%
Late aircraft43.8%
National airspace17.9%
Weather1.5%
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.