Cheap flights from Columbus to Ontario

One-way fares from $201 · CMH → ONT · prices found by travellers in the last 48 hours

Cheapest fare
$201

Alaska Airlines · Fri, Jan 22

Cheapest month
January

from $201

Direct flights
Not recently

Usually 1+ stop

Quickest trip
5h 44m

3,120 km

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Cheapest month to fly from Columbus to Ontario

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $240
  2. January 2027 Cheapest $201

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Where to stay, what to do and getting around, from our travel partners.

About flights from Columbus to Ontario

Columbus (CMH) and Ontario (ONT) are about 3,120 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 5h 44m. Over the next few months, one-way fares start from $201, and January 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Columbus to Ontario?

The cheapest one-way fare we've seen recently is $201 with Alaska Airlines, departing Friday, January 22, 2027. Over the coming months, the lowest fare in each month ranges from $201 to $240.

What is the cheapest month to fly from Columbus to Ontario?

January 2027 currently has the lowest fares, from $201 one way.

Are there direct flights from Columbus to Ontario?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Columbus to Ontario?

The quickest journey we've seen takes about 5h 44m. Columbus and Ontario are around 3,120 km apart.

Which airlines fly from Columbus to Ontario?

Recent fares on this route were with Frontier Airlines and Alaska Airlines.

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