Historical on-time performance
Washington to Portland
2,350 miData through May 2026Source: US DOT · BTS
Flights on DCA–PDX arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.0%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-time68%Medianon timep9070 minCancel1.0%Flights307
Why flights run late
Delay causes
- Airline15%
- Weather9%
- Air traffic (NAS)27%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline33%
- Weather67%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 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 DCA → PDX
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 80% on time.
- Saturdays80% on time · p90 40 min · 157 flights · limited
- Tuesdays78% on time · p90 30 min · 156 flights · limited
- Mondays76% on time · p90 35 min · 156 flights · limited
- Sundays74% on time · p90 50 min · 156 flights · limited
- Fridays74% on time · p90 55 min · 157 flights · limited
- Thursdays73% on time · p90 40 min · 153 flights · limited
- Wednesdays70% on time · p90 50 min · 156 flights · limited
Keep exploring