Direct flights from Houston to Ontario IAH → ONT

ATI, Frontier Airlines and United Airlines operate nonstop flights from Houston (IAH) to Ontario (ONT). The nonstop flight takes around ~2h 41m, covering 1,331 miles (2,142 km) and operates daily. Updated 28 June 2026.

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ATI 8C Frontier Airlines F9 United Airlines UA

Departure Schedule next 7 days

More nonstops from Houston

IAH → DFW Dallas-Fort Worth 9 airlines IAH → AUS Austin 6 airlines IAH → CLT Charlotte 6 airlines IAH → LAX Los Angeles 6 airlines IAH → ORD Chicago 6 airlines IAH → ATL Atlanta 5 airlines IAH → DTW Detroit 5 airlines IAH → MSY New Orleans 5 airlines

Frequently asked questions

Is there a direct flight from Houston to Ontario?

Yes, ATI, Frontier Airlines and 1 more airline operate nonstop flights from Houston (IAH) to Ontario (ONT).

Which airlines fly direct from Houston to Ontario?

ATI, Frontier Airlines, United Airlines operate nonstop flights from Houston to Ontario.

How long is the flight from Houston to Ontario?

The nonstop flight from Houston to Ontario takes ~2h 41m (approximately 2142 km).

How often do direct flights operate from Houston to Ontario?

Nonstop flights from Houston to Ontario operate daily.

Explore More

IAH All direct flights from Houston 🗓 Find cheapest round-trip dates → ONT All direct flights from Ontario ONT → IAH Return: Ontario to Houston
Cheap direct deals from Houston — last one was $168 to Los Angeles