Best Time to Fly PBI to ATL: On-Time Stats by Hour & Airline
Palm Beach International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.6% of West Palm Beach/Palm Beach (PBI) to Atlanta (ATL) flights arrived on time (3,791 scheduled flights). That is 5.0 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 83.5% on time and Frontier Airlines was last with 39.2%.
Over 24 months, Saturday was the most reliable day (88% on time) and March the worst month (78%).
The cancellation rate was 1.6% (US average 1.8%).
PBI to ATL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 83.5% | 63 min | 1.6% | 3,710 |
| Frontier Airlines | 39.2% | 106 min | 2.5% | 81 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PBI to ATL
On-time arrival % by scheduled departure hour (local time), 7,730 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 29 | |
| 6am–7am | 96.5% | 1.5% | 783 |
| 7am–8am | 93.2% | 1.0% | 714 |
| 8am–9am | 92.8% | 1.0% | 730 |
| 9am–10am | 91.5% | 1.4% | 583 |
| 10am–11am | 93.5% | 2.1% | 422 |
| 11am–12pm | 84.8% | 1.6% | 562 |
| 12pm–1pm | 74.7% | 1.3% | 629 |
| 1pm–2pm | 76.0% | 0.8% | 370 |
| 2pm–3pm | 76.0% | 1.6% | 443 |
| 3pm–4pm | 75.7% | 1.4% | 444 |
| 4pm–5pm | 69.9% | 1.4% | 707 |
| 5pm–6pm | 76.8% | 1.0% | 97 |
| 6pm–7pm | 70.2% | 0.8% | 721 |
| 7pm–8pm | 69.5% | 1.6% | 496 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PBI to ATL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 77.1% | -6.5 pts | 0.0% | 144 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.8% | -6.8 pts | 2.0% | 295 |
| Summer peak (Jun 15 - Aug 15) | 79.2% | -4.4 pts | 1.8% | 1,317 |
| All other days | 83.6% | — | 1.2% | 5,974 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).