EWR to IAH flight delays & on-time performance
Nonstop flights from Newark Liberty International Airport to George Bush Intercontinental Airport · 1,400 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at EWR or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Newark (EWR) to Houston (IAH) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.9% were cancelled, and 8% arrived an hour or more late.
- United Airlines was the most punctual airline here (81% on time); Spirit Airlines was the least (69%).
- Departures scheduled around 7am did best (92% on time); around 3pm did worst (67%).
- Tuesday was the most reliable day to fly (84% on time) and Saturday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (37%).
Which airline is most on time from EWR 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 |
|---|---|---|---|---|---|
| United Airlines | 81% | 1.6% | 15 min | 7.5% | 3,534 |
| Spirit Airlines | 69% | 7.3% | 27 min | 12.6% | 232 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am92%241 flights
- 6am90%165 flights
- 7am92%419 flights
- 8am84%161 flights
- 9am82%85 flights
- 10am77%280 flights
- 11am73%52 flights
- 12pm87%395 flights
- 1pm70%69 flights
- 2pm83%356 flights
- 3pm67%200 flights
- 4pm72%169 flights
- 5pm74%386 flights
- 7pm75%378 flights
- 8pm73%340 flights
- 9pm68%43 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%2.9% cancelled
- Tuesday84%2.5% cancelled
- Wednesday80%1.2% cancelled
- Thursday82%0.7% cancelled
- Friday79%0.4% cancelled
- Saturday77%1.5% cancelled
- Sunday77%4.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft37%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion28%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather82%
- Airline (crew, maintenance, cleaning, fueling)11%
- Air traffic control & airport congestion7%
- Security0%
EWR to IAH: common questions
- How often are EWR to IAH flights on time?
- 80% 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 Newark to Houston cancelled?
- 1.9% of scheduled flights were cancelled (72 of 3,766).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 75 min behind schedule on average, and 7.8% of flights were an hour or more late.
- How long is taxi time at EWR?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to EWR — 75% on time
More flights from Newark
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: EWR → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.