Cheap flights from Ontario to Casper

One-way fares from $429 · ONT → CPR · prices found by travellers in the last 48 hours

Compare all dates Casper → Ontario
Cheapest fare
$429

United Airlines · Thu, Nov 12

Cheapest month
November

from $429

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 31m

1,380 km

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Cheapest month to fly from Ontario to Casper

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

  1. November 2026 Cheapest $429

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Getting around

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About flights from Ontario to Casper

Ontario (ONT) and Casper (CPR) are about 1,380 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 31m. Over the next few months, one-way fares start from $429, 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 Casper?

The cheapest one-way fare we've seen recently is $429 with United Airlines, departing Thursday, November 12, 2026.

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

November 2026 currently has the lowest fares, from $429 one way.

Are there direct flights from Ontario to Casper?

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

How long is the flight from Ontario to Casper?

The quickest journey we've seen takes about 3h 31m. Ontario and Casper are around 1,380 km apart.

Which airlines fly from Ontario to Casper?

Recent fares on this route were with United Airlines.

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