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WanderNerd

Route Reliability

Santa Ana → Portland

SNAPDX · 859 miles · John Wayne Airport to Portland International Airport

96
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
7 min early
Average arrival delay
1.3%
Cancelled
1,543
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 93% of the time across 1,543 flights. No comparison to make.

What the data says

The late departure is the smart one here.

SNA–PDX flights departing between 9 PM–12 AM arrived on time 100% of the time, versus 90% between 9 AM–12 PM.

Sunday scaries are real for this one.

SNA–PDX flights arrived on time 96% of the time on Thursdays. On Sundays: 89%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon95%(225 flights)
  • Tue93%(217 flights)
  • Wed94%(215 flights)
  • Thu96%(215 flights)
  • Fri93%(222 flights)
  • Sat94%(202 flights)
  • Sun89%(227 flights)
On-time by departure window
  • 6–9 AM97%(358 flights)
  • 9 AM–12 PM90%(361 flights)
  • 12–3 PM92%(400 flights)
  • 3–6 PM93%(44 flights)
  • 6–9 PM94%(300 flights)
  • 9 PM–12 AM100%(60 flights)
On-time trend by month
94%
May

Jun 90% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%115
July 202592%116
August 202593%130
September 202595%147
October 202592%141
November 202596%142
December 202589%146
January 202697%116
February 202695%106
March 202689%123
April 202698%118
May 202694%123

Based on 1,543 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.