Historical on-time performance
Portland to Santa Ana
859 miData through May 2026Source: US DOT · BTS
Flights on PDX–SNA arrive on time 89% of the time over the last 12 months.
On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 1,543 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time89%Medianon timep9015 minCancel1.4%Flights1,543
Why flights run late
Delay causes
- Airline45%
- Weather1%
- Air traffic (NAS)38%
- Late aircraft17%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline86%
- Weather14%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 22 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PDX → SNA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Overnights are the most reliable time of day to fly this route — 94% on time.
- Overnights94% on time · p90 on time · 427 flights
- Evenings89% on time · p90 10 min · 752 flights
- Mornings89% on time · p90 10 min · 1,131 flights
- Afternoons88% on time · p90 15 min · 748 flights
- Middays87% on time · p90 20 min · 1,061 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 86% to 93% on time.
- Saturdays93% on time · p90 10 min · 551 flights
- Tuesdays91% on time · p90 10 min · 565 flights
- Wednesdays90% on time · p90 10 min · 563 flights
- Mondays88% on time · p90 15 min · 612 flights
- Fridays88% on time · p90 15 min · 611 flights
- Thursdays86% on time · p90 15 min · 603 flights
- Sundays86% on time · p90 15 min · 614 flights
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