Historical on-time performance
Miami to Portland
Flights on MIA–PDX arrive on time 69% of the time over the last 12 months.
based on 155 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Alaska AirlinesOn-time74%Medianon timep9070 minCancel0.0%Flights31
- American AirlinesOn-time68%Medianon timep9070 minCancel2.4%Flights124
Why flights run late
Delay causes
- Airline26%
- Weather7%
- Air traffic (NAS)15%
- Late aircraft53%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- 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 MIA → PDX
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Afternoons are the most reliable time of day to fly this route — 80% on time.
- Afternoons80% on time · p90 30 min · 125 flights · limited
- Evenings63% on time · p90 75 min · 545 flights
- Overnights57% on time · p90 80 min · 391 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 55% to 75% on time.
- Tuesdays75% on time · p90 40 min · 156 flights · limited
- Mondays67% on time · p90 80 min · 165 flights · limited
- Wednesdays67% on time · p90 75 min · 145 flights · limited
- Thursdays66% on time · p90 55 min · 157 flights · limited
- Sundays61% on time · p90 85 min · 165 flights · limited
- Fridays59% on time · p90 70 min · 162 flights · limited
- Saturdays55% on time · p90 100 min · 163 flights · limited
Keep exploring