Best Time to Fly EYW to PHL: On-Time Stats by Hour & Airline
Key West International → Philadelphia International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 66.2% of Key West (EYW) to Philadelphia (PHL) flights arrived on time (493 scheduled flights). That is 11.4 points below the national average of 77.6%.
Among 2 airlines, Republic Airways led with 84.3% on time and American Airlines was last with 56.4%.
Over 24 months, Tuesday was the most reliable day (78% on time) and July the worst month (41%).
The cancellation rate was 3.2% (US average 1.8%).
EYW to PHL 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 |
|---|---|---|---|---|
| Republic Airways | 84.3% | 49 min | 2.9% | 172 |
| American Airlines | 56.4% | 142 min | 3.4% | 321 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly EYW to PHL
On-time arrival % by scheduled departure hour (local time), 1,046 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | Limited data | 1 | |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | 84.5% | 2.2% | 274 |
| 1pm–2pm | Limited data | 5 | |
| 2pm–3pm | 82.6% | 4.8% | 145 |
| 3pm–4pm | Limited data | 10 | |
| 4pm–5pm | 66.7% | 1.2% | 169 |
| 5pm–6pm | 56.5% | 3.0% | 441 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on EYW to PHL
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) | Limited data | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 64.3% | -7.6 pts | 0.0% | 56 |
| Summer peak (Jun 15 - Aug 15) | 49.1% | -22.7 pts | 3.3% | 120 |
| All other days | 71.8% | — | 3.1% | 846 |
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).