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Cheap flights from Ontario International to Los Angeles International

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Compare Ontario International to Los Angeles International flight deals

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

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Flight deals from Ontario International to Los Angeles International

Looking for a cheap last-minute deal or the best round-trip flight from Ontario International to Los Angeles International? Find the lowest prices on one-way and round-trip tickets right here.
Los Angeles.C$514 per passenger.Departing Thu, May 29, returning Mon, Jun 2.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Ontario International on Thu, May 29, arriving in Los Angeles International.Inbound indirect flight with Alaska Airlines, departing from Los Angeles International on Mon, Jun 2, arriving in Ontario International.Price includes taxes and charges.From C$514, select.
Los Angeles.C$638 per passenger.Departing Fri, May 16, returning Mon, May 19.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Ontario International on Fri, May 16, arriving in Los Angeles International.Inbound indirect flight with Alaska Airlines, departing from Los Angeles International on Mon, May 19, arriving in Ontario International.Price includes taxes and charges.From C$638, select.
Los Angeles.C$964 per passenger.Departing Fri, Jun 27, returning Sat, Jul 5.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Ontario International on Fri, Jun 27, arriving in Los Angeles International.Inbound indirect flight with Alaska Airlines, departing from Los Angeles International on Sat, Jul 5, arriving in Ontario International.Price includes taxes and charges.From C$964, select.
Los Angeles.C$1,122 per passenger.Departing Wed, Apr 30, returning Wed, May 7.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Ontario International on Wed, Apr 30, arriving in Los Angeles International.Inbound indirect flight with Alaska Airlines, departing from Los Angeles International on Wed, May 7, arriving in Ontario International.Price includes taxes and charges.From C$1,122, select.

When is the cheapest time to fly from Ontario International to Los Angeles International?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Los Angeles International flights are currently cheapest in May.
Apr
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May
from C$638
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Ontario International to Los Angeles International: Alternative routes

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

Ontario to Los Angeles: Flight information

The things to know before you go.
Cheapest flight foundC$514
Cheapest month to flyMay

Finding cheap flights from Ontario International to Los Angeles International: Frequently asked questions

The best price we found for a round-trip flight from Ontario International to Los Angeles International is C$514. 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 Ontario International to Los Angeles International. But we found flights with one or more stops from C$514.
There are no flights flying from Ontario International to Los Angeles International, as of April 2025.
The cheapest month to fly from Ontario International to Los Angeles International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Los Angeles International Airport on Thursday, May 29, 2025.
No airlines currently offer direct flights between Ontario International Airport and Los Angeles 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 Los Angeles 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 Los Angeles is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Los Angeles International.

Flying from Ontario International Airport (ONT) to Los Angeles International Airport (LAX): what you need to know

  • Ontario and Los Angeles are in the same timezone, UTC-7.

  • Get to the airport on time so you don't miss your ONT to LAX flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Be prepared for bigger queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a wise move.

  • If you'd like to explore another city along the way, simply uncheck 'Direct flights only' when searching for your ticket from Ontario International Airport to Los Angeles International Airport. Here are the most popular stopovers between ONT and LAX:

    • Harry Reid Airport (formerly McCarran Airport)

    • Phoenix Sky Harbour International Airport

    • Norman Y. Mineta San Jose International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Los Angeles International Airport (LAX)

  • At the moment, C$218 is the lowest price we've found for a one-way Ontario International Airport to Los Angeles International Airport flight. The best price for a return plane ticket is C$514. Keep in mind that fares may change due to availability when booking.

  • It's usually smart to book ahead of time if you're hoping to get cheap tickets from ONT to LAX. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Ontario International Airport to Los Angeles International Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' search tool to see the lowest prices across the month and snap up a great deal.

  • Cut down on the time spent looking for cheap flights from ONT to LAX by setting up a Price Alert. You'll get an email or notification on the app when a special offer becomes available.

  • Find the ideal flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Ontario International Airport to Los Angeles International Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Ontario International Airport (ONT)

  • You'll find ONT at 2900 E. Airport Drive.

  • 83.6% of flights leaving Ontario International Airport arrive at their destination on time. With its impressive on-time stats, you're unlikely to experience delays when jetting out of ONT.

  • To reach Ontario International Airport from central Ontario, it takes around 10 minutes by car. This depends on traffic, however. It's approximately 6 kilometres from the airport to the city centre.

  • The journey when using public transport takes about 1 hour 30 minutes.

  • Have an early flight from Ontario International Airport to Los Angeles International Airport? Avoid rushing to the terminal (and get some extra shut-eye) by picking one of these hotels near ONT:

Arriving at Los Angeles International Airport (LAX)

Getting from Los Angeles International Airport (LAX) to central Los Angeles

  • The street address for LAX is One World Way.

  • Los Angeles International Airport to the centre of Los Angeles has a drive time of around 30 minutes. It's approximately 32 kilometres away.

  • It takes around 55 minutes when travelling by public transport.

When to fly to Los Angeles International Airport (LAX)

  • It's time to plan your travel dates for your flight from Ontario International Airport to Los Angeles International Airport. July is the busiest month to head to Los Angeles. If you're after a quieter vibe, go in May.

  • Book your flight from Ontario International Airport to Los Angeles International Airport for August if you want to go to Los Angeles during its warmest month. You can expect temperatures of between 16ºC (61ºF) and 32ºC (90ºF).

  • February sees average temperatures of between 6ºC (43ºF) and 26ºC (79ºF). Search for cheap tickets from ONT to LAX sometime around then if you want to travel when it's cooler.

Explore more of United States

  • You've visited Los Angeles, now it's time to discover other parts of United States. Travel about 177 kilometres south-east to San Diego to check off its top attractions. From San Diego Zoo to USS Midway Museum and SeaWorld San Diego, your itinerary will be busy.

  • San Jose is another standout destination in United States and is around 499 kilometres north-west of Los Angeles. No journey is complete without seeing Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

Plan the rest of your trip from Ontario to Los Angeles

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