To save up to 45% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Kansas City to Ontario from $261 1-2 weeks out and tickets from $285 for flights departing within the next 72 hours.
August is one of the best times of the year to fly to Ontario from Kansas City. Prices for August average $212 per person but you can even find prices for as low as $111. The most expensive prices can be found in the month of December. Opting for a August flight can save you 33% on your journey compared to booking in August
The chart below displays the airlines Cheapflights users traveling from Kansas City to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
||$130||$296||No cancel fee||N/A|
||$100||$343||No cancel fee||71%|
||$125||$407||No cancel fee||69%|
||$489||$627||No cancel fee||60%|
||$231||$644||No cancel fee||67%|