Cheap flights from Ontario to Boise

One-way fares from $162 · ONT → BOI · prices found by travellers in the last 48 hours

Compare all dates Boise → Ontario
Cheapest fare
$162

Southwest Airlines · Mon, Nov 16

Cheapest month
November

from $162

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 00m

1,070 km

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Cheapest month to fly from Ontario to Boise

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

  1. November 2026 Cheapest $162

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About flights from Ontario to Boise

Ontario (ONT) and Boise (BOI) are about 1,070 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 3h 00m. Over the next few months, one-way fares start from $162, and November 2026 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 Ontario to Boise?

The cheapest one-way fare we've seen recently is $162 with Southwest Airlines, departing Monday, November 16, 2026.

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

November 2026 currently has the lowest fares, from $162 one way.

Are there direct flights from Ontario to Boise?

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

How long is the flight from Ontario to Boise?

The quickest journey we've seen takes about 3h 00m. Ontario and Boise are around 1,070 km apart.

Which airlines fly from Ontario to Boise?

Recent fares on this route were with Southwest Airlines.

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