Flying from Lambert-St. Louis International Airport (STL) to Ontario International Airport (ONT): what you need to know
Ontario's timezone is UTC-7, which makes Ontario two hours behind St Louis.
To ensure you get on your STL to ONT flight, leave plenty of time to navigate the airport and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.
You'll likely experience longer lines during popular months like July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.
If you want to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from Lambert-St. Louis International Airport to Ontario International Airport. Here are the top stopovers between STL and ONT:
Harry Reid Airport (formerly McCarran Airport)
Phoenix Sky Harbour International Airport
Denver International Airport
How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Ontario International Airport (ONT)
The lowest price we've found for a one-way Lambert-St. Louis International Airport to Ontario International Airport flight is ₹ 8,597. A round-trip ticket is currently ₹ 22,503. Depending on the availability and when you book, these fares can change.
To find cheap tickets from STL to ONT, book early. Airlines typically offer their best fares when flights are first made available.
The 'Whole month' search function shows you the cheapest flights from Lambert-St. Louis International Airport to Ontario International Airport across the month. It's an easy way to snap up a bargain if your plans aren't set in stone.
Spend less time searching for cheap flights from STL to ONT by setting up a Price Alert. You'll get an email or notification through the app when a new low fare is offered.
Tailor your flights using filters. Choose your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Lambert-St. Louis International Airport to Ontario International Airport.
Handy information about Lambert-St. Louis International Airport (STL)
You'll find STL at 10701 Lambert International Blvd..
78.04% of flights departing from Lambert-St. Louis International Airport land at their destination on time.
Central St Louis to Lambert-St. Louis International Airport is around 26 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.
Planning to take public transport? Expect a trip time of around 35 minutes.
Taking an early flight from Lambert-St. Louis International Airport to Ontario International Airport? Avoid the last-minute rush to the airport (and enjoy a little extra shut-eye) by picking one of these stays near STL:
Arriving at Ontario International Airport (ONT)
Consider booking a hotel near ONT if you have a late Lambert-St. Louis International Airport to Ontario International Airport flight. Settle into one of these options and skip the long transfer:
Hit the road running by picking up an Ontario International Airport rental car. Grab a set of wheels from Dollar, Fox - Rent A Car or Thrifty and explore beyond Ontario's main sights.
Booking your ride from Ontario International Airport about three weeks ahead gives you the best shot at securing a great deal.
Getting from Ontario International Airport (ONT) to central Ontario
The street address for ONT is 2900 E. Airport Drive.
From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to reach the centre driving.
Travelling on public transport will take you roughly 1 hour 30 minutes.
When to fly to Ontario International Airport (ONT)
It's time to plan your dates for your flight from Lambert-St. Louis International Airport to Ontario International Airport. August is the most popular month to visit Ontario. If you're after a more low-key vibe, go in May.
The warmest month in Ontario is August, with temperatures ranging between 15ºC and 35ºC. Lock in your flights from Lambert-St. Louis International Airport to Ontario International Airport in this month if this is the type of weather you like.
January sees average temperatures of between 4ºC and 23ºC. Search for cheap tickets from STL to ONT sometime around then if you want to travel when it's cooler.
Explore more of United States
Ontario has loads to offer, but there are so many other parts of United States you'll want to see. Around 56 kilometres west of Ontario, a visit to Los Angeles will keep your itinerary packed. Start with popular sights like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.
Around 153 kilometres south of Ontario, San Diego is another favourite stop in United States. No visit is complete without checking out San Diego Zoo, USS Midway Museum and SeaWorld San Diego.
