Cheap flights from Louisville to Los Angeles from $154
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Los Angeles departing on 5/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Louisville to Los Angeles
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Alaska Airlines flights from Louisville to Ontario
Our best Alaska Airlines deals on Louisville to Ontario flight tickets
United Airlines flights from Louisville to Ontario
Our best United Airlines deals on Louisville to Ontario flight tickets
See travel insights to Los Angeles from
How to get the cheapest flight ticket from Louisville to Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ontario?
In general, August is the cheapest month to fly from Louisville to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $326. If you aren’t able to travel during the month of August, then book flights to Ontario from Louisville during April instead. Flights to Ontario in April, while not as cheap as those in August, still average around $403.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $461. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Ontario for around $597.
What is the cheapest time of day to depart on your flight to Ontario?
In the evening is the cheapest time of day to fly from Louisville to Ontario when you can find flight prices for as low as $417. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $665 on average. Flights to Ontario from Louisville at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How have Louisville to Ontario flight prices changed over time?
What is the cheapest airline that flies from Louisville Intl to Ontario?
Delta, American Airlines, and United Airlines are the most popular carriers operating from Louisville Intl to Ontario
What airlines fly to Ontario?
Delta, American Airlines and Frontier are the top three most popular airlines that fly to Ontario from Louisville according to our data. Delta is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
When to book flights from Louisville to Ontario
Cheap Louisville to Ontario (SDF to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Louisville to Ontario
How far is Louisville Intl to Ontario by plane?
Ontario is 1792.4 mi away from Louisville Intl. In terms of flight time, this usually takes a little over 5h 55m.
When did momondo last update prices for flights from Louisville Intl Airport to Ontario Airport?
Prices for flights from Louisville Intl Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Ontario Airport?
There are 4 operators available for flights from Louisville Intl Airport to Ontario Airport as of April 2025.
How old do you have to be to fly from Louisville Intl Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Louisville to Ontario?
momondo data reveals that the most frequently booked airline on the route from Louisville to Ontario is Southwest, representing 36% of all bookings. The subsequent popular airlines are American Airlines at 32%, Delta at 18%, and United Airlines at 14%.
Best airlines flying from Louisville to Ontario
Compare and see reviews for airlines that fly from Louisville to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $257 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $288 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom $306 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $364 | Free Cancellation | Rating 8.0 4,294 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Louisville to Ontario?
It is quick and easy to find Louisville to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.
Can I find flights from Louisville to Ontario with flexible booking policies on momondo?
Yes. All flights to Ontario from Louisville on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Louisville to Ontario?
Once all potential Louisville to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Louisville to Ontario right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Louisville to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.