Historical on-time performance
Seattle to Pasco
172 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–PSC arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 1,961 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time84%Medianon timep9025 minCancel0.4%Flights1,671
- Alaska AirlinesOn-time73%Medianon timep9030 minCancel1.7%Flights290
Why flights run late
Delay causes
- Airline38%
- Weather17%
- Air traffic (NAS)14%
- Late aircraft30%
- Security1%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SEA → PSC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 1,622 flights
- Afternoons85% on time · p90 25 min · 1,287 flights
- Overnights82% on time · p90 25 min · 1,716 flights
- Middays76% on time · p90 35 min · 567 flights
- Evenings75% on time · p90 35 min · 958 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.
- Wednesdays86% on time · p90 20 min · 872 flights
- Saturdays85% on time · p90 20 min · 768 flights
- Tuesdays84% on time · p90 20 min · 876 flights
- Mondays83% on time · p90 25 min · 924 flights
- Fridays81% on time · p90 25 min · 917 flights
- Thursdays81% on time · p90 25 min · 910 flights
- Sundays80% on time · p90 30 min · 883 flights
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