Historical on-time performance
Portland to Atlanta
2,172 miData through Dec 2025Source: US DOT · BTS
Flights on PDX–ATL arrive on time 84% of the time over the last 12 months.
On-time rate84%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 1,539 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time88%Medianon timep9015 minCancel0.6%Flights1,294
- Alaska AirlinesOn-time62%Median5 minp9035 minCancel0.0%Flights245
Why flights run late
Delay causes
- Airline40%
- Weather0%
- Air traffic (NAS)32%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PDX → ATL
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 83% to 90% on time.
- Afternoons90% on time · p90 10 min · 333 flights
- Mornings88% on time · p90 15 min · 1,377 flights
- Overnights88% on time · p90 15 min · 1,025 flights
- Middays83% on time · p90 25 min · 1,462 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 83% to 89% on time.
- Tuesdays89% on time · p90 15 min · 571 flights
- Thursdays89% on time · p90 15 min · 620 flights
- Mondays88% on time · p90 15 min · 631 flights
- Wednesdays88% on time · p90 15 min · 583 flights
- Saturdays84% on time · p90 20 min · 547 flights
- Sundays83% on time · p90 25 min · 620 flights
- Fridays83% on time · p90 25 min · 625 flights
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