Direct flights from Ontario to Houston ONT → IAH

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

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More nonstops from Ontario

ONT → OAK Oakland ONT → DEN Denver 3 airlines ONT → SEA Seattle 3 airlines ONT → DFW Dallas-Fort Worth 2 airlines ONT → HNL Honolulu, Oahu 2 airlines ONT → LAS Las Vegas 2 airlines ONT → PHX Phoenix 2 airlines ONT → SFO San Francisco 2 airlines

Frequently asked questions

Is there a direct flight from Ontario to Houston?

Yes, Frontier Airlines and United Airlines operate nonstop flights from Ontario (ONT) to Houston (IAH).

Which airlines fly direct from Ontario to Houston?

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

How long is the flight from Ontario to Houston?

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

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ONT All direct flights from Ontario 🗓 Find cheapest round-trip dates → IAH All direct flights from Houston IAH → ONT Return: Houston to Ontario
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