What is the cheapest month to fly from Kansas City to Ontario?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Kansas City (MCI) to Ontario (ONT), with fares starting from $138.

What is the lowest current fare from MCI to ONT?

The lowest currently-listed fare from Kansas City (MCI) to Ontario (ONT) is $138 on 2026-06-10.

Is there a direct flight from Kansas City to Ontario?

There is currently no non-stop service from MCI to ONT. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Kansas City to Ontario

Cheapest current fares: $138 in June 2026 on connecting flights.

Last updated May 26, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Kansas City (MCI) to Ontario (ONT). Refreshed daily.

Kansas City (MCI) → Ontario (ONT)

June 2026 $138

Frequently asked questions

What is the cheapest month to fly from Kansas City to Ontario?

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Kansas City (MCI) to Ontario (ONT), with fares starting from $138.
What is the lowest current fare from MCI to ONT?

The lowest currently-listed fare from Kansas City (MCI) to Ontario (ONT) is $138 on 2026-06-10.
Is there a direct flight from Kansas City to Ontario?

There is currently no non-stop service from MCI to ONT. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.