Route Reliability
Portland → Atlanta
PDX–ATL · 2,172 miles · Portland International Airport to Hartsfield–Jackson Atlanta International Airport
- 88%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0.9%
- Cancelled
- 1,593
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines91%1,306 flights
- 2.Alaska Airlines76%286 flights
Not enough history to rank: American Airlines (1 flights). We rank airlines only after 100 flights on the route.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 90% of the time, against 87% between 9 AM–12 PM.
Friday is doing you no favors.
PDX–ATL flights arrived on time 91% of the time on Wednesdays. On Fridays: 84%.
Delta Air Lines has a clear lead on this route.
Delta Air Lines arrived on time 91% of the time on this route; Alaska Airlines managed 76%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon87%(231 flights)
- Tue89%(226 flights)
- Wed91%(226 flights)
- Thu89%(227 flights)
- Fri84%(225 flights)
- Sat86%(204 flights)
- Sun90%(232 flights)
- 6–9 AM87%(643 flights)
- 9 AM–12 PM87%(307 flights)
- 12–3 PM90%(232 flights)
- 9 PM–12 AM88%(389 flights)
Jun 77% → May 89% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 165 |
| July 2025 | 76% | 175 |
| August 2025 | 88% | 162 |
| September 2025 | 89% | 145 |
| October 2025 | 90% | 154 |
| November 2025 | 91% | 138 |
| December 2025 | 88% | 121 |
| January 2026 | 93% | 90 |
| February 2026 | 99% | 78 |
| March 2026 | 99% | 99 |
| April 2026 | 90% | 115 |
| May 2026 | 89% | 129 |
Keep nerding
Based on 1,593 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.