56% of JFK → IAH flights arrived on time in June-August 2026 (184 flights). The most reliable was B6 1381, on time 65% of the time on this route. Morning flights did best (65%), afternoon flights worst (46%). New York JFK (JFK): no delay reported. Houston Bush (IAH): no delay reported.
Best time of day to fly JFK → IAH
| Morning (before noon) | |
| Afternoon (noon-5 PM) |
Flights JFK → IAH, most reliable first
| Flight | Departs | On time on this route | Cancelled |
|---|---|---|---|
| B6 1381 JetBlue | 8:15 AM | 8.7% | |
| B6 281 JetBlue | 2:29 PM | 4.3% |
JFK conditions · IAH conditions · IAH → JFK · Cancellations
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From BTS on-time data, June-August 2026; flights with 20+ trips on this route. On-time rates cover each flight number's whole day, which can include other legs. Departure times are local.