IAH to EWR flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Newark Liberty International Airport · 1,400 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or EWR right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (IAH) to Newark (EWR) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.8% were cancelled, and 10% arrived an hour or more late.
- Spirit Airlines was the most punctual airline here (77% on time); United Airlines was the least (75%).
- Departures scheduled around 6am did best (94% on time); around 4pm did worst (59%).
- Tuesday was the most reliable day to fly (81% on time) and Sunday the least (70%).
- The largest source of delay minutes was air traffic control & airport congestion (48%).
Which airline is most on time from IAH to EWR?
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 |
|---|---|---|---|---|---|
| Spirit Airlines | 77% | 6.0% | 15 min | 9.0% | 235 |
| United Airlines | 75% | 1.5% | 19 min | 9.6% | 3,534 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am91%57 flights
- 6am94%374 flights
- 7am85%329 flights
- 8am84%158 flights
- 9am78%337 flights
- 10am76%250 flights
- 11am70%170 flights
- 12pm76%259 flights
- 1pm74%366 flights
- 2pm63%359 flights
- 4pm59%364 flights
- 6pm66%366 flights
- 7pm62%73 flights
- 8pm79%289 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%2.9% cancelled
- Tuesday81%1.3% cancelled
- Wednesday79%1.0% cancelled
- Thursday73%1.3% cancelled
- Friday73%0.2% cancelled
- Saturday71%1.9% cancelled
- Sunday70%4.0% 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 congestion48%
- Airline (crew, maintenance, cleaning, fueling)25%
- Late-arriving aircraft22%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather82%
- Airline (crew, maintenance, cleaning, fueling)13%
- Air traffic control & airport congestion4%
- Security0%
IAH to EWR: common questions
- How often are IAH to EWR 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 Houston to Newark cancelled?
- 1.8% of scheduled flights were cancelled (68 of 3,769).
- 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 70 min behind schedule on average, and 9.6% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: EWR to IAH — 80% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAH → EWR, nonstop flights by US airlines that report to the DOT. How we calculate this.