Historical on-time performance
Washington to Portland
2,350 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–PDX arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 307 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time73%Medianon timep9070 minCancel0.7%Flights307
Why flights run late
Delay causes
- Airline18%
- Weather9%
- Air traffic (NAS)23%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → PDX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Mondays80% on time · p90 35 min · 157 flights · limited
- Tuesdays79% on time · p90 30 min · 157 flights · limited
- Saturdays79% on time · p90 40 min · 156 flights · limited
- Sundays78% on time · p90 50 min · 156 flights · limited
- Fridays74% on time · p90 55 min · 156 flights · limited
- Thursdays73% on time · p90 40 min · 152 flights · limited
- Wednesdays72% on time · p90 35 min · 157 flights · limited
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