Cheap flights from Louisville Muhammad Ali International to Ontario International

Travellers and cabin class

Compare Louisville Muhammad Ali International to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Louisville Muhammad Ali International to Ontario International

Looking for a cheap last-minute deal or the best return flight from Louisville Muhammad Ali International to Ontario International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Louisville Muhammad Ali International to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Louisville Muhammad Ali International to Ontario International flights are currently cheapest in April.

Louisville Muhammad Ali International to Ontario International: Alternative routes

Compare routes from Louisville Muhammad Ali International to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Louisville to Ontario: Flight information

The things to know before you go.
Cheapest flight foundP15,043
Cheapest month to flyApril

Finding cheap flights from Louisville Muhammad Ali International to Ontario International: Frequently asked questions

The best price we found for a return flight from Louisville Muhammad Ali International to Ontario International is P15,055. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Louisville Muhammad Ali International to Ontario International. But we found flights with one or more stops from P15,043.
As of February 2025, there are no flights flying from Louisville Muhammad Ali International to Ontario International.
The cheapest month to fly from Louisville Muhammad Ali International to Ontario International is usually February 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Louisville Muhammad Ali International Airport to Ontario International Airport on Tuesday, 29 April 2025.
No airlines currently offer direct flights between Louisville Muhammad Ali International Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to Ontario International.

Flying from Louisville International Airport-Standiford Field (SDF) to Ontario International Airport (ONT): what you need to know

  • Taking off during a peak time like public or school holidays? Expect longer lines at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

  • To break up your flight from Louisville International Airport-Standiford Field to Ontario International Airport, think about adding a stopover. Simply deselect 'Direct flights only' and find a destination that interests you. The top stopovers on the SDF - ONT route are:

    • Dallas/Fort Worth International Airport

    • Phoenix Sky Harbour International Airport

    • Denver International Airport

How to find the cheapest flights from Louisville International Airport-Standiford Field (SDF) to Ontario International Airport (ONT)

  • The lowest price we've found for a one-way ticket from Louisville International Airport-Standiford Field to Ontario International Airport is P7,695. For a return flight on this route, the best price is P15,055. Depending on the availability when you book, these fares could change.

  • To pick up cheap tickets from SDF to ONT, book in advance. Airlines tend to offer the most competitive fares when flights are first released.

  • Getting cheap tickets from Louisville International Airport-Standiford Field to Ontario International Airport is easy if you're flexible with your dates. Use the 'Whole month' search tool to see the lowest prices across each month and bag a great deal.

  • Set up a Price Alert for cheap tickets from SDF to ONT. You don't need to check back in every day to see whether fares have dropped. We'll let you know when the price changes.

  • Tailor your flights using filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Louisville International Airport-Standiford Field to Ontario International Airport.

Handy information about Louisville International Airport-Standiford Field (SDF)

  • Louisville International Airport-Standiford Field is about 23 kilometres from central Louisville. If you're catching a cab, driving or ride-sharing from the centre, it'll take 24 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the journey time to be approximately 2 hours and 41 minutes.

  • Want a relaxed start to your trip? Stay near SDF. Whether you have an early flight from Louisville International Airport-Standiford Field to Ontario International Airport or just don't like being rushed, these stays have you covered:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • Ontario International Airport is approximately 6 kilometres from the centre of Ontario. With a cab or in your own car rental, the drive is around 10 minutes.

  • When travelling by public transport, expect a journey of roughly 1 hour and 28 minutes.

When to fly to Ontario International Airport (ONT)

  • It's time to choose your travel dates for your flight from Louisville International Airport-Standiford Field to Ontario International Airport. August is the busiest month to visit Ontario. If you want a quieter vibe, go in May.

  • When reserving your flight from Louisville International Airport-Standiford Field to Ontario International Airport, consider the type of weather you enjoy. August is the warmest month in Ontario, with the temperature ranging from 15 ºC to 35 ºC.

  • For cooler conditions, look for a cheap ticket from SDF to ONT in January. Average temperatures are between 4 ºC and 23 ºC then.

More about Ontario

Complete your Ontario trip with hotels and a car rental

  • Once you've secured your cheap ticket to Ontario International Airport, discover our low prices and exclusive offers on hotels. You can also compare hundreds of car rental companies in one go to get the best car rental price for your Ontario escape.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.