Ontario to Houston flights
Direct and connecting flights from Ontario International Airport (ONT) to George Bush Intercontinental Houston Airport (IAH) — airlines, aircraft types, and the safety record for this route.
Route FAQ
How long does the flight from Ontario to Houston take?
Flight time from Ontario (ONT) to Houston (IAH) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. The typical block time and frequency we have observed for this route are shown above.
Which airlines fly from Ontario to Houston?
Airline availability for ONT to IAH changes by season and sometimes week to week as carriers adjust capacity. The airlines and aircraft types observed operating this route, both direct and connecting, are listed below based on real flight-tracking data.
Are there direct flights from Ontario to Houston?
Direct (nonstop) availability on ONT to IAH varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons.
No fatal or serious occurrence recorded and attributed to operators on this pair in the last 90 days.
- Frontier Airlines5-yr attributed events: 7Last 90 days: none recorded
- United Airlines5-yr attributed events: 58Last 90 days: none recorded
| Carrier | Sightings / 90d | Safety events |
|---|---|---|
| Frontier Airlines | 3 sightings | No recorded events |
| United Airlines | 2 sightings | No recorded events |
Planning ONT → IAH
ONT to IAH is a medium-haul route of 2,142 km (1,331 mi). See the return IAH → ONT route.
Alternative airports near Ontario: Upland (CCB) — 10 km, Chino (CNO) — 10 km, La Verne (POC) — 17 km.
Alternative airports near Houston: Houston (DWH) — 22 km, Houston (IWS) — 37 km, Houston (HOU) — 38 km.