Find the Cheapest Flights from Ontario International Airport!

Unlock the cheapest flights and the best airfares from Ontario International Airport. Make your dream trip both memorable and affordable!

Thu, May 28ONT-CMH
JetHunter

oneway$207

Thu, Jul 16ONT-CMH
Frontier Airlines

$233

Ontario International Airport to John Glenn Columbus International Airport: Flight information

Cheapest flight found$207

Cheapest month to flyMay

Most popular airlineJetHunter

Average flight duration10h 37m

Cheapest flight found

May 2026

$207

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Ontario International Airport to Japan

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Ontario International Airport to Spain

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Ontario International Airport to Finland

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