Flights from St Louis Airport (STL) to Ontario Airport Airport (ONT)

Q: How long does the flight from St Louis to Ontario to take?

The flight from St Louis to Ontario takes3 Hours 44 Minutes.

Flights from Lambert-St. Louis International to Ontario International are in quite low demand and there is only one airliner that operates flights – Flexjet. The flight time is approximately 3 Hours 44 Minutes.

The price of the flight is dependent on the time of the day you fly and the day of the week with weekends being normally a higher price. The cheapest flights available will generally be mid week or late in the evening, so if you are on a budget then these are the flight times you should consider. Alternatively, you could book well in advance and you flight could be up to 50% cheaper, especially with budget airliners. The ticket prices for most airliners will increase the closer you get the departure date, so as soon as you know the date you will travel you should book your flights.

The time zone at Ontario International is different from Lambert-St. Louis International, so please be aware of this when making travel arrangements.

If you plan on flying to Ontario International Airport from Lambert-St. Louis International Airport you can pre-arrange your long or short term parking at Lambert-St. Louis International Airport.

If you are renting a car at Ontario International Airport it is recommended to fill up the fuel tank before returning the vehicle at the nearest fuel station to Ontario International Airport in order to avoid incurring additional costs. *Please check your rental agreement to understand the fuel policy for your vehicle.

Organise and book your choice of transport to Lambert-St. Louis International Airport:

Ensure your arrival at Ontario International Airport is as stress-free as possible by pre-booking your onwards transport - booking early may also save you money:

You can also research and pre-book a hotel near Ontario International Airport

For a full summary of all the airliners that fly from Lambert-St. Louis International to Ontario International, please see the table below.

Flights Chart

Airliner	Mo	Tu	We	Th	Fr	Sa	Su	First Flight	Last Flight	Flights
Flexjet	0	0	0	0	1	0	0	11:00	11:00	VIEW FLIGHTS

Most people choose to fly with Flexjet. They offer the largest number of flights so they have times which are most likely to suite you. The flights they offer will go by the flight numbers LXJ583 with times between 11:00 and 11:00.

If you would like more information on this flight the please visit the website for Flexjet at www.flexjet.com/. You will be able to find the latest availability, prices and make your booking online.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays

Day

Flight Times

Flights

Friday

11:00

Airline	Flight No
Flexjet	LXJ583

VIEW FLIGHTS

If you are flexible on the airport you depart from, then there are other airports that offer direct flights to Ontario International. You can see full details of these below.

Alternative Direct Routes

Route	Stops	Distance	Flying Time
Mt Vernon to Ontario	0		3 Hours 53 Minutes
Marion Williamson County to Ontario	0		3 Hours 52 Minutes

Whilst you will find a bureau de change at Ontario International, we recommend you change some money before you depart if you don’t have the local currency. The exchange rates within any airport are not very favorable, so exchanging money before hand is a good idea.

Don't forget to book a hire car!

Search for cheap car hire at Ontario Airport

Flight Price FAQ - St Louis (STL) to Ontario (ONT)

1+ STOP(S)

What is the cheapest flight one way from St Louis STL to Ontario ONT?

The cheapest flight one way from St Louis STL to Ontario ONT is £49.96 ($61 €59.28)

£49.96

$61 | €59.28

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1+ STOP(S)

What is the cheapest return flight from St Louis STL to Ontario ONT?

The cheapest return flight from St Louis STL to Ontario ONT is £90.09 ($110 €106.89)

£90.09

$110 | €106.89

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Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.