JFK to IAH flight delays & on-time performance
Nonstop flights from John F. Kennedy International Airport to George Bush Intercontinental Airport · 1,417 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at JFK or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from New York (JFK) to Houston (IAH) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.6% were cancelled, and 10% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (84% on time); JetBlue was the least (58%).
- Departures scheduled around 8am did best (80% on time); around 2pm did worst (49%).
- Sunday was the most reliable day to fly (81% on time) and Saturday the least (68%).
- The largest source of delay minutes was air traffic control & airport congestion (42%).
Which airline is most on time from JFK to IAH?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 84% | 3.7% | 12 min | 7.0% | 269 |
| JetBlue | 58% | 3.5% | 31 min | 15.3% | 144 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am80%327 flights
- 1pm55%21 flights
- 2pm49%51 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%5.1% cancelled
- Tuesday80%5.1% cancelled
- Wednesday74%1.7% cancelled
- Thursday68%0.0% cancelled
- Friday79%4.9% cancelled
- Saturday68%3.4% cancelled
- Sunday81%5.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion42%
- Airline (crew, maintenance, cleaning, fueling)24%
- Late-arriving aircraft19%
- Extreme weather15%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)60%
- Extreme weather27%
- Air traffic control & airport congestion13%
- Security0%
JFK to IAH: common questions
- How often are JFK to IAH flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from New York to Houston cancelled?
- 3.6% of scheduled flights were cancelled (15 of 413).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 69 min behind schedule on average, and 9.9% of flights were an hour or more late.
- How long is taxi time at JFK?
- Flights on this route spent 31 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to JFK — 68% on time
More flights from New York
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: JFK → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.