Historical on-time performance
Portland to Washington
2,350 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–DCA arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%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-time81%Medianon timep9025 minCancel0.0%Flights307
Why flights run late
Delay causes
- Airline23%
- Weather0%
- Air traffic (NAS)52%
- Late aircraft24%
- Security1%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PDX → DCA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 78% to 86% on time.
- Middays86% on time · p90 20 min · 84 flights · limited
- Mornings78% on time · p90 30 min · 1,007 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 84% on time.
- Saturdays84% on time · p90 20 min · 156 flights · limited
- Tuesdays82% on time · p90 20 min · 157 flights · limited
- Thursdays80% on time · p90 25 min · 152 flights · limited
- Sundays79% on time · p90 35 min · 156 flights · limited
- Wednesdays77% on time · p90 25 min · 157 flights · limited
- Mondays75% on time · p90 30 min · 157 flights · limited
- Fridays73% on time · p90 30 min · 156 flights · limited
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