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

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

84.1% of 3,967 official scheduled SEA-to-SNA flights arrived on time; 7.8% arrived at least 30 minutes late and 1.0% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
84.1%arrived on time
7.8%30+ min late
1.0%cancelled
3,967scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.0%all scheduled flights
120+ minutes late1.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-1.3 mincompleted flights

Which departure time was most reliable for SEA to SNA?

Among qualifying SEA-to-SNA departure window results, Early morning had the highest on-time rate: 88.9% of 823 flights. Afternoon was lowest at 80.7% across 1,121 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning82388.9%5.7%1.0%
Late morning81581.1%9.8%0.5%
Afternoon1,12180.7%11.2%1.1%
Evening1,20885.9%4.7%1.3%

Which weekday was most reliable for SEA to SNA?

Among qualifying SEA-to-SNA weekday results, Tuesday had the highest on-time rate: 86.9% of 556 flights. Thursday was lowest at 82.0% across 594 flights.

DayFlightsOn time30+ minCancelled
Monday60482.5%8.1%1.2%
Tuesday55686.9%7.0%0.5%
Wednesday53785.8%7.4%0.0%
Thursday59482.0%8.4%0.7%
Friday59383.1%8.1%2.2%
Saturday49084.5%6.7%1.6%
Sunday59384.3%8.4%0.8%

Which airline was most reliable for SEA to SNA?

Among qualifying SEA-to-SNA airline results, Alaska Airlines had the highest on-time rate: 85.2% of 2,608 flights. Delta Air Lines was lowest at 82.0% across 954 flights.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines2,60885.2%6.4%1.2%
Delta Air Lines95482.0%11.9%0.9%
SkyWest Airlines40582.2%7.2%0.2%

Which month was most reliable for SEA to SNA?

Among qualifying SEA-to-SNA month results, May 2026 had the highest on-time rate: 92.4% of 353 flights. December 2025 was lowest at 77.7% across 319 flights.

MonthFlightsOn time30+ minCancelled
July 202537877.8%8.5%2.4%
August 202535980.5%9.5%0.3%
September 202533087.6%5.5%0.6%
October 202534180.1%8.8%1.8%
November 202533083.6%7.9%0.9%
December 202531977.7%13.8%0.9%
January 202631287.2%7.7%1.3%
February 202628288.3%6.4%0.7%
March 202630881.2%7.8%2.9%
April 202630191.0%5.0%0.0%
May 202635392.4%3.7%0.3%
June 202635483.6%8.8%0.0%

What drove SEA to SNA delay minutes?

Airline was the largest recorded SEA-to-SNA delay category, accounting for 56.7% of 28,637 BTS-attributed delay minutes during July 2025–June 2026.

Airline56.7%
Late aircraft22.4%
National airspace19.0%
Weather1.9%
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.