ATL to PDX flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to Portland International Airport · 2,172 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or PDX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Portland (PDX) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 5% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (82% on time); Delta Air Lines was the least (78%).
- Departures scheduled around 10am did best (94% on time); around 5pm did worst (63%).
- Tuesday was the most reliable day to fly (84% on time) and Sunday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
Which airline is most on time from ATL to PDX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 100% | 0.0% | 0 min | 0.0% | 1 |
| Southwest Airlines | 100% | 0.0% | 0 min | 0.0% | 1 |
| Alaska Airlines | 82% | 0.7% | 14 min | 7.0% | 286 |
| Delta Air Lines | 78% | 0.9% | 12 min | 4.5% | 1,264 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am84%342 flights
- 9am68%25 flights
- 10am94%112 flights
- 11am79%67 flights
- 4pm77%308 flights
- 5pm63%71 flights
- 6pm81%256 flights
- 7pm72%328 flights
- 8pm82%33 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.4% cancelled
- Tuesday84%0.5% cancelled
- Wednesday81%0.5% cancelled
- Thursday83%0.5% cancelled
- Friday74%0.4% cancelled
- Saturday82%1.9% cancelled
- Sunday74%2.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion30%
- Late-arriving aircraft26%
- Extreme weather6%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)79%
- Extreme weather21%
- Air traffic control & airport congestion0%
- Security0%
ATL to PDX: common questions
- How often are ATL to PDX flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to Portland cancelled?
- 0.9% of scheduled flights were cancelled (14 of 1,552).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 52 min behind schedule on average, and 4.9% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PDX to ATL — 89% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → PDX, nonstop flights by US airlines that report to the DOT. How we calculate this.