Travelers have found it’s best to book a flight 58 days in advance to save up to 30% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 58 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Missouri to Ontario 1-2 weeks in advance for as low as $477, or $754 for flights within the next 24 hours.
The best pricing can be found in the month of January. Prices to Ontario from Missouri average $446. You can even find prices in January for less than $446, as users have found deals to Ontario from as low as $177. The month of March appears to be one of the more expensive times to travel to Ontario from Missouri. Flying in the targeted month can save you up to 11%.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Ontario as you normally would.
Fly from
Fly to
Budget
$75 - $298
Route
Depart
Return
Price
Lambert-St LouisOntario
STL - ONT
STLONT
Lambert-St Louis
Wed 5/1
1 stop5h 55m
Ontario
Mon 5/20
1 stop8h 56m
Lambert-St LouisOntario
STL - ONT
STLONT
Lambert-St Louis
Wed 5/15
1 stop5h 55m
Ontario
Fri 5/17
1 stop6h 26m
Lambert-St LouisOntario
STL - ONT
STLONT
Lambert-St Louis
Wed 4/24
1 stop12h 22m
Ontario
Wed 5/1
1 stop9h 29m
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Thu 5/2
1 stop6h 49m
Ontario
Mon 5/6
1 stop6h 15m
Lambert-St LouisOntario
STL - ONT
STLONT
Lambert-St Louis
Sat 4/20
1 stop6h 00m
Ontario
Fri 4/26
1 stop6h 52m
Lambert-St LouisOntario
STL - ONT
STLONT
Lambert-St Louis
Sat 4/20
1 stop6h 00m
Ontario
Mon 4/22
1 stop12h 51m
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Tue 4/30
1 stop14h 47m
Ontario
Mon 5/6
1 stop6h 15m
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Sat 5/4
1 stop6h 36m
Ontario
Mon 5/6
1 stop6h 15m
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Tue 4/16
1 stop7h 22m
Ontario
Wed 4/17
1 stop5h 26m
No data available for this route at this time. Please check back soon.
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
Food
Comfort
Entertainment
Crew
Overall
Boarding
Reviews
I would have liked flying out of the airport I chose not a different airport. My flight was moved to San Jose
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Yes, you can often find last-minute deals on Missouri to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
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Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.