Historical on-time performance
Portland to Baltimore
2,358 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–BWI arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 92 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9030 minCancel0.0%Flights92
Why flights run late
Delay causes
- Airline9%
- Weather0%
- Air traffic (NAS)7%
- Late aircraft84%
- 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 PDX → BWI
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 76% to 80% on time.
- Overnights80% on time · p90 25 min · 120 flights · limited
- Middays76% on time · p90 30 min · 58 flights · limited
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