Route
JFK → IAH
John F. Kennedy International Airport George Bush Intercontinental Airport
1,417 miles
Return route IAH → JFK →
How punctual is this route?
- On-time arrivals
- 71.7%
- Less than 15 minutes late
- Cancelled
- 4.6%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 475
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 41%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 21%
- Extreme weather 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.0% | 23 |
| October 2025 | 73.3% | 31 |
| November 2025 | 96.6% | 29 |
| December 2025 | 75.9% | 31 |
| January 2026 | 76.9% | 29 |
| February 2026 | 92.0% | 28 |
| March 2026 | 86.7% | 31 |
| April 2026 | 100.0% | 30 |
| May 2026 | 62.3% | 53 |
| June 2026 | 64.6% | 66 |
| July 2026 | 53.6% | 62 |
| August 2026 | 49.1% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 269 | 83.7% | 3.7% | 72 min |
| JetBlue Airways | 206 | 55.3% | 5.8% | 78 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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