Historical on-time performance
Baltimore to Portland
2,358 miData through May 2026Source: US DOT · BTS
Flights on BWI–PDX arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled2.2%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-time75%Medianon timep9035 minCancel2.2%Flights92
Why flights run late
Delay causes
- Airline38%
- Weather15%
- Air traffic (NAS)5%
- Late aircraft41%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather0%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
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