Route Reliability
ISP → West Palm Beach
ISP–PBI · 1,052 miles · ISP Airport to Palm Beach International Airport
- 72%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 2.1%
- Cancelled
- 1,247
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.JetBlue Airways72%522 flights
- 2.Southwest Airlines72%641 flights
Not enough history to rank: Frontier Airlines (84 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning flights do better here.
ISP–PBI flights departing between 6–9 AM arrived on time 85% of the time, versus 63% between 3–6 PM.
Sunday scaries are real for this one.
ISP–PBI flights arrived on time 75% of the time on Tuesdays. On Sundays: 67%.
Not much between JetBlue Airways and Southwest Airlines.
On this route they all land within 72% to 72% on time. Pick on schedule and price.
Trending in the right direction.
ISP–PBI flights arrived on time 73% of the time over the last three months in the data, compared with 65% in the three months before that.
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
- Mon71%(166 flights)
- Tue75%(176 flights)
- Wed73%(173 flights)
- Thu69%(179 flights)
- Fri74%(174 flights)
- Sat72%(164 flights)
- Sun67%(181 flights)
- 3–6 AM82%(33 flights)
- 6–9 AM85%(265 flights)
- 9 AM–12 PM82%(145 flights)
- 12–3 PM65%(332 flights)
- 3–6 PM63%(393 flights)
- 6–9 PM83%(40 flights)
- 9 PM–12 AM—(5 flights)
Jun 70% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 103 |
| July 2025 | 73% | 89 |
| August 2025 | 75% | 87 |
| September 2025 | 79% | 86 |
| October 2025 | 82% | 91 |
| November 2025 | 76% | 98 |
| December 2025 | 58% | 131 |
| January 2026 | 64% | 126 |
| February 2026 | 72% | 122 |
| March 2026 | 66% | 95 |
| April 2026 | 73% | 103 |
| May 2026 | 81% | 82 |
Same trip, other airports
Keep nerding
Based on 1,247 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.