Portland (PDX) to Atlanta (ATL): On-Time Performance
Data through July 2026
Portland (PDX) to Atlanta (ATL) effectively runs on two schedules. In February 2026, 99% of arrivals were on time; in April 2025 that fell to 73% — a 25-point seasonal swing. Across the full period the route averages 86% on-time against a national 78%.
- On-time
- 86%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 4.2
- last 12 months
- Duration
- 4h 41m
- scheduled
- Distance
- 2,172 mi
Best airline from PDX to ATL
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 89% | 8 min | 1.0% | 2,671 |
| Alaska Airlines | 71% | 13 min | 0.4% | 517 |
Monthly on-time trend
Best time to fly from PDX to ATL
Aim for departures around 6 a.m. (94% on-time); avoid 9 a.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 7 min |
| Tuesday | 89% | 7 min |
| Wednesday | 88% | 7 min |
| Thursdaybest | 89% | 7 min |
| Friday | 81% | 12 min |
| Saturday | 84% | 12 min |
| Sunday | 83% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations45%
- National airspace system27%
- Weather1%
Frequently asked questions
- How often are flights from PDX to ATL delayed?
- 14% of PDX–ATL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- Which airline is most reliable from PDX to ATL?
- Delta Air Lines has the best on-time record on this route at 89%, based on 2,671 flights. 2 airlines flew PDX–ATL frequently enough to compare in this period.
- What is the best time of day to fly from PDX to ATL?
- Departures around 6 a.m. have the best record (94% on-time), while departures around 9 a.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PDX to ATL?
- The scheduled PDX–ATL flight time averages 4h 41m over 2,172 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are PDX to ATL flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from PDX to ATL?
- April 2025 was the roughest month in this dataset, with only 73% of arrivals on time. The best was February 2026 at 99%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 3,189 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.