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Cheap Flights from Los Angeles to Ontario International

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Compare Los Angeles 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 Los Angeles to Ontario International

Looking for a cheap last-minute deal or the best return flight from Los Angeles to Ontario International? Find the lowest prices on one-way and return tickets right here.
Ontario.302 € per passenger.Departing Sat, 23 Aug, returning Wed, 27 Aug.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Los Angeles International on Sat, 23 Aug, arriving in Ontario International.Inbound indirect flight with Hawaiian Airlines, departs from Ontario International on Wed, 27 Aug, arriving in Los Angeles International.Price includes taxes and charges.From 302 €, select.
Ontario.397 € per passenger.Departing Sat, 14 Jun, returning Sat, 23 Aug.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Los Angeles International on Sat, 14 Jun, arriving in Ontario International.Inbound indirect flight with Hawaiian Airlines, departs from Ontario International on Sat, 23 Aug, arriving in Los Angeles International.Price includes taxes and charges.From 397 €, select.
Ontario.415 € per passenger.Departing Wed, 16 Jul, returning Sun, 20 Jul.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Los Angeles International on Wed, 16 Jul, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departs from Ontario International on Sun, 20 Jul, arriving in Los Angeles International.Price includes taxes and charges.From 415 €, select.
Ontario.442 € per passenger.Departing Tue, 10 Jun, returning Tue, 17 Jun.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Los Angeles International on Tue, 10 Jun, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departs from Ontario International on Tue, 17 Jun, arriving in Los Angeles International.Price includes taxes and charges.From 442 €, select.
Ontario.724 € per passenger.Departing Sat, 31 May, returning Sat, 7 Jun.Return flight with Hawaiian Airlines and Alaska Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Los Angeles International on Sat, 31 May, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departs from Ontario International on Sat, 7 Jun, arriving in Los Angeles International.Price includes taxes and charges.From 724 €, select.
Ontario.823 € per passenger.Departing Thu, 29 May, returning Fri, 30 May.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Los Angeles International on Thu, 29 May, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departs from Ontario International on Fri, 30 May, arriving in Los Angeles International.Price includes taxes and charges.From 823 €, select.

Find the cheapest month to fly from Los Angeles to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Los Angeles to Ontario International flights are currently cheapest in August.
May
from 823 €
Jun
from 442 €
Jul
from 415 €
Aug
from 302 €
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Mar
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Apr
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Los Angeles to Ontario International: Alternative routes

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

Los Angeles to Ontario: Flight information

The things to know before you go.
Cheapest flight found302 €
Cheapest month to flyAugust

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

The best price we found for a return flight from Los Angeles to Ontario International is 302 €. 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 Los Angeles to Ontario International. But we found flights with one stop from 302 €.
As of May 2025, there are no flights flying from Los Angeles to Ontario International.
The cheapest month to fly from Los Angeles to Ontario International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Los Angeles to Ontario International Airport on Saturday, 23 August 2025.
No airlines currently offer direct flights between Los Angeles 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.
The cheapest airline that flies to Ontario International is Hawaiian Airlines .

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

  • Begin your journey at one of Los Angeles's main airports, Los Angeles International Airport (LAX) or Van Nuys Airport (VNY). Check out your options for booking a flight from Los Angeles to Ontario International Airport (ONT) departing from either of these.

  • Los Angeles and Ontario (where Ontario International Airport is located) share the UTC-7 timezone. That means you won't have to change your watch when you land.

  • Get to the airport on time so you don't miss your flight from Los Angeles to ONT. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • Hopping on a plane during a peak time like July? Busy periods (like spring break, summer and New Year) can add another hour at security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Los Angeles

Los Angeles International Airport (LAX)

  • LAX is roughly 32 kilometres from the centre of Los Angeles. To help you work out how to get there, use Google Maps. This essential traveller tool will show you the quickest route and your public transport options.

  • After a leisurely start to your break? Stay near Los Angeles International Airport. Whether you're taking an early flight from Los Angeles to Ontario International Airport or just don't like being rushed, these hotels have you covered:

Van Nuys Airport (VNY)

  • You can arrive at VNY from central Los Angeles in approximately 34 minutes by car, depending on traffic conditions. The journey on public transport will take roughly 1 hour and 41 minutes to travel the 32 kilometres or so.

  • Want to enjoy an extra night away before your flight from Los Angeles to ONT? Relax in a hotel near Van Nuys Airport before your holiday officially starts. Here's where you can stay:

About 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 your own car rental or if you're catching a cab, the drive is about 10 minutes.

  • Getting to the centre by public transport will take you roughly 1 hour and 28 minutes.

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

  • Lock in a one-way ticket from Los Angeles to Ontario International Airport from 158 € or travel return from just 302 €. Prices are accurate at the time of listing and may change based on availability when you book.

  • To pick up cheap tickets from Los Angeles to ONT, book in advance. Airlines generally offer lower prices when flights are first released.

  • Getting cheap tickets from Los Angeles to Ontario International Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' function to see the best prices across each month and land a great deal.

  • Locking in a cheap ticket from Los Angeles to ONT is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll let you know when there's a better deal.

  • Play around with the filters to find your ideal trip. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Los Angeles to Ontario International Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

The best time to fly from Los Angeles to Ontario International Airport (ONT)

  • August is the most popular month for flights from Los Angeles to Ontario International Airport. To avoid the crowds, head for Ontario in May when things are quieter.

  • Schedule your flight from Los Angeles to ONT for August if you're eager to head to the city during its warmest month. Expect temperatures in Ontario to range from 15ºC to 35ºC.

  • Travel in January if you want to explore when it's cooler. Average temperatures range between 4ºC and 23ºC. However, this city delivers on a good time whenever you book your cheap flights from Los Angeles to Ontario International Airport.

More about Ontario

  • When it comes to searching for somewhere to lay your head, you'll find the most popular stays in Ontario right here. Explore these hotels as soon as you've locked in your flight from Los Angeles to Ontario International Airport:

  • There are so many things to discover in this city it can be hard to know where to begin. Graber Olive House, Anthony Munoz Park and James R. Bryant Dog Park are leading attractions which should be on every Ontario itinerary.

Complete your Ontario trip with a car rental

  • We use the same magic that helped you find your cheap flight from Los Angeles to Ontario International Airport to track down your perfect ride. Browse our car rentals in Ontario and compare offers in one place. Plus you'll find all the info you need to know, from the most popular rental company to the average daily price.

Plan the rest of your trip from Los Angeles to Ontario

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