LAX - ONT

$78 Find Cheap Flights from Los Angeles to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to Ontario departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Ontario, as well as popular online travel agencies
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Los Angeles to Ontario (LAX-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Los Angeles to Ontario

Thu, Oct 16 - Mon, Oct 20
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7:40 pm - 7:47 amLAX-ONT
12h 07m1 stop
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10:47 pm - 6:39 pmONT-LAX
19h 52m1 stop
$150
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Sun, Sep 14 - Sun, Sep 21
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7:50 pm - 7:17 amLAX-ONT
11h 27m1 stop
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10:28 pm - 1:33 pmONT-LAX
15h 05m1 stop
$153
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Sat, Sep 13 - Sat, Sep 20
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6:15 am - 9:56 pmLAX-ONT
15h 41m1 stop
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1:37 pm - 6:55 pmONT-LAX
5h 18m1 stop
$156
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Fri, Oct 24 - Sun, Oct 26
Frontier Logo
6:57 pm - 12:07 amLAX-ONT
5h 10m1 stop
Frontier Logo
10:47 pm - 12:14 pmONT-LAX
13h 27m1 stop
$170Frontier
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Sun, Sep 14 - Sun, Sep 21
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7:50 pm - 7:17 amLAX-ONT
11h 27m1 stop
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10:13 pm - 10:56 amONT-LAX
12h 43m2 stops
$188
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Sat, Sep 13 - Sat, Sep 20
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10:18 am - 9:56 pmLAX-ONT
11h 38m2 stops
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1:37 pm - 6:55 pmONT-LAX
5h 18m1 stop
$202
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Mon, Sep 15 - Mon, Sep 22
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11:10 pm - 7:54 pmLAX-ONT
20h 44m2 stops
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6:00 am - 10:56 amONT-LAX
4h 56m1 stop
$217
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Fri, Oct 24 - Sun, Oct 26
Frontier Logo
9:17 pm - 12:37 pmLAX-ONT
15h 20m2 stops
Frontier Logo
10:47 pm - 12:14 pmONT-LAX
13h 27m1 stop
$226Frontier
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Thu, Oct 16 - Mon, Oct 20
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7:40 pm - 7:47 amLAX-ONT
12h 07m1 stop
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6:53 am - 7:53 pmONT-LAX
13h 00m2 stops
$227
Find Deal
Fri, Aug 29 - Mon, Sep 1
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6:45 am - 11:49 amLAX-ONT
5h 04m1 stop
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10:13 pm - 1:21 pmONT-LAX
15h 08m1 stop
$266
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Booking Insights

KAYAK's insights & trends for Los Angeles to Ontario flights

Get data-powered insights and trends into flights from Los Angeles to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Los Angeles to Ontario?

Percentage of 1-stop round-trip flights from Los Angeles to Ontario chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

San Francisco (SFO) is the top choice – 50% of KAYAK users who clicked on 1-stop flights from Los Angeles to Ontario picked an itinerary connecting there.

What is the cheapest layover airport when flying from Los Angeles to Ontario?

Average round-trip price for 1-stop flights from Los Angeles to Ontario clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Las Vegas (LAS) offer the most affordable fares, with an average round-trip price of $218.

Which layover airport offers the shortest total travel time from Los Angeles to Ontario?

Shortest average total travel time for 1-stop one-way flights from Los Angeles to Ontario via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via San Francisco (SFO) for the shortest journey. The average one-way travel time for flights connecting there is 5h 22m.

Which layover airport has the quickest connection when flying from Los Angeles to Ontario?

Average layover duration at different layover airports for 1-stop one-way flights from Los Angeles to Ontario, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Portland (PDX) often has the shortest layovers from Los Angeles to Ontario, with an average of 1h 15m.

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Good to know

Cheapest flight$78
Flight from Los Angeles to Ontario

When to book flights from Los Angeles to Ontario

Are your dates flexible? Find out the best times to travel from Los Angeles to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Los Angeles to Ontario

  • What is the cheapest flight from Los Angeles to Ontario?

    In the last 3 days, the lowest price for a flight from Los Angeles to Ontario was $78 for a one-way ticket and $150 for a round-trip.

  • Do I need a passport to fly between Los Angeles and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Los Angeles to Ontario?

    When flying out of Los Angeles you will be using Los Angeles. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Los Angeles to Ontario?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Los Angeles to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Los Angeles to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Los Angeles is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Los Angeles to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Los Angeles with another airline. Booking your flights between Los Angeles and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Los Angeles to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Los Angeles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Los Angeles to Ontario

Information on your arrival and departure airports

Los Angeles (LAX)
Ontario (ONT)

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