Cheap flights from Champaign to Ontario

One-way fares from $516 · CMI → ONT · prices found by travellers in the last 48 hours

Compare all dates Ontario → Champaign
Cheapest fare
$516

American Airlines · Sun, Nov 8

Cheapest month
November

from $516

Direct flights
Not recently

Usually 1+ stop

Quickest trip
5h 43m

2,680 km

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Cheapest month to fly from Champaign to Ontario

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

  1. November 2026 Cheapest $516

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

Where to stay

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Things to do

Things to do in OntarioTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in OntarioPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in OntarioCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Champaign to Ontario

Champaign (CMI) and Ontario (ONT) are about 2,680 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 43m. Over the next few months, one-way fares start from $516, 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 Champaign to Ontario?

The cheapest one-way fare we've seen recently is $516 with American Airlines, departing Sunday, November 8, 2026.

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

November 2026 currently has the lowest fares, from $516 one way.

Are there direct flights from Champaign to Ontario?

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

How long is the flight from Champaign to Ontario?

The quickest journey we've seen takes about 5h 43m. Champaign and Ontario are around 2,680 km apart.

Which airlines fly from Champaign to Ontario?

Recent fares on this route were with American Airlines.

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