61% of JFK → BUF flights arrived on time in June-August 2026 (366 flights). The most reliable was B6 1602, on time 89% of the time on this route. Morning flights did best (89%), evening flights worst (46%). New York JFK (JFK): no delay reported. BUF (BUF): no delay reported.
Best time of day to fly JFK → BUF
| Morning (before noon) | |
| Afternoon (noon-5 PM) | |
| Evening (after 5 PM) |
Flights JFK → BUF, most reliable first
| Flight | Departs | On time on this route | Cancelled |
|---|---|---|---|
| B6 1602 JetBlue | 6:30 AM | 9.8% | |
| B6 2902 JetBlue | 1:29 PM | 13.4% | |
| B6 102 JetBlue | 10:29 PM | 12.2% | |
| B6 1202 JetBlue | 5:31 PM | 18.5% |
JFK conditions · BUF → 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.