United States
USD

ONT - LAX

$119 Find Cheap Flights from Ontario to Los Angeles - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 19% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$124
Typical prices: $254-$493
Frontier
Mon 12/10Wed 12/12
ONT - LAX • 1 stop
Cheapest one-way
$119
Typical prices: $65-$152
Frontier
Fri 1/5
ONT - LAX • 1 stop
When to travel
December
Cheapest • 7% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg $272 (round-trip)
Las Vegas Harry Reid Intl (LAS)
Shortest trip • 10h 18m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Los Angeles!

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

 

Cheap flights from Ontario to Los Angeles with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Thu, Dec 10 - Sat, Dec 12
Frontier Logo
7:26 pm - 11:04 pmONT  Ontario-LAX Los Angeles
27h 38m1 stop San Francisco
Frontier Logo
6:40 pm - 11:23 pmLAX  Los Angeles-ONT Ontario
4h 43m1 stop San Francisco
$124Frontier
Fri, Dec 11 - Mon, Dec 14
Frontier Logo
6:39 am - 5:02 pmONT  Ontario-LAX Los Angeles
10h 23m1 stop Seattle/Tacoma Intl
Frontier Logo
6:40 pm - 11:23 pmLAX  Los Angeles-ONT Ontario
4h 43m1 stop San Francisco
$173Frontier
Wed, Nov 4 - Wed, Nov 11
Frontier Logo
6:30 am - 12:23 amONT  Ontario-LAX Los Angeles
17h 53m1 stop Denver Intl
Frontier Logo
2:03 pm - 11:51 pmLAX  Los Angeles-ONT Ontario
9h 48m1 stop Denver Intl
$180Frontier
Thu, Dec 10 - Sat, Dec 12
Frontier Logo
8:29 am - 11:04 pmONT  Ontario-LAX Los Angeles
14h 35m2 stops Las Vegas Harry Reid Intl San Francisco
Frontier Logo
6:40 pm - 11:23 pmLAX  Los Angeles-ONT Ontario
4h 43m1 stop San Francisco
$188Frontier
Wed, Nov 4 - Wed, Nov 11
Frontier Logo
5:07 pm - 7:48 amONT  Ontario-LAX Los Angeles
14h 41m1 stop Las Vegas Harry Reid Intl
Frontier Logo
7:03 pm - 7:30 pmLAX  Los Angeles-ONT Ontario
24h 27m1 stop San Francisco
$194Frontier
Fri, Dec 11 - Mon, Dec 14
Frontier Logo
6:39 am - 5:02 pmONT  Ontario-LAX Los Angeles
10h 23m1 stop Seattle/Tacoma Intl
Frontier Logo
6:40 pm - 6:31 pmLAX  Los Angeles-ONT Ontario
23h 51m2 stops San Francisco Las Vegas Harry Reid Intl
$204Frontier
Sat, Nov 7 - Mon, Nov 9
Frontier Logo
10:00 am - 4:16 pmONT  Ontario-LAX Los Angeles
6h 16m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:44 am - 7:30 pmLAX  Los Angeles-ONT Ontario
10h 46m1 stop San Francisco
$205Frontier
Wed, Nov 4 - Sun, Nov 22
Frontier Logo
10:35 am - 4:16 pmONT  Ontario-LAX Los Angeles
5h 41m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:48 pm - 12:24 amLAX  Los Angeles-ONT Ontario
5h 36m1 stop San Francisco
$211Frontier
Thu, Oct 29 - Mon, Nov 2
Frontier Logo
5:06 pm - 10:59 pmONT  Ontario-LAX Los Angeles
29h 53m1 stop Seattle/Tacoma Intl
Frontier Logo
8:44 am - 7:30 pmLAX  Los Angeles-ONT Ontario
10h 46m1 stop San Francisco
$219Frontier
Wed, Nov 4 - Sun, Nov 22
Frontier Logo
10:35 am - 10:54 pmONT  Ontario-LAX Los Angeles
12h 19m2 stops Las Vegas Harry Reid Intl San Francisco
Frontier Logo
6:48 pm - 12:24 amLAX  Los Angeles-ONT Ontario
5h 36m1 stop San Francisco
$221Frontier

Price, demand and travel trends for Ontario to Los Angeles flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Ontario to Los Angeles?

Round-trip flights from Ontario to Los Angeles typically range from $254 to $493. The lowest price found in the past 5 days was $124, on Frontier.

What's the cheapest day of the week to fly from Ontario to Los Angeles?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Ontario to Los Angeles. It’s 27% cheaper than the average day, while Friday is the most expensive, with prices 119% higher.

Find deals

Key details for Ontario to Los Angeles flights

Low season

February

Cheapest flight

$119
Beat the crowds with an average 8% drop in travelers.
One-way flight from Ontario to Los Angeles

When to book flights from Ontario to Los Angeles

Are your dates flexible? Find out the best times to travel from Ontario to Los Angeles based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Los Angeles flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to Los Angeles?

    Only Economy Class is available on flights from Ontario to Los Angeles.

  • How long is a flight from Ontario to Los Angeles?

    There are currently no nonstop flights available from Ontario to Los Angeles. Flights with 1 layover take between 10h 18m and 18h 50m in total, depending on the connection.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Ontario to Los Angeles flight?

    Round-trip flights from Ontario to Los Angeles range from $254 to $493, with an average of $272 over the past 12 months. Anything below $254 counts as a good deal.

  • Have flight prices from Ontario to Los Angeles changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $124 to $899. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Ontario to Los Angeles looking right now?

    One-way fares from Ontario to Los Angeles are currently higher than usual. Average one-way flight prices are about $167, which is 91% above the typical average for this route.

  • What car rental options are available at Los Angeles Airport (LAX)?

    Los Angeles Airport (LAX) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

    • Ace
    • Thrifty
    • Hertz
    • Alamo
    • Dollar

  • Which airports can I use when flying from Ontario to Los Angeles?

    Flights from Ontario to Los Angeles usually depart from Ontario (ONT) and arrive at Los Angeles (LAX).

  • Which airports do connecting flights from Ontario to Los Angeles pass through?

    Connecting flights from Ontario to Los Angeles most commonly pass through:

    • Las Vegas Harry Reid Intl (LAS) - 89% of one-stop connections
    • San Francisco (SFO) - 11% of one-stop connections

  • Can I save money by using flexible dates for flights from Ontario to Los Angeles?

    Yes. Flexible dates can save you up to 67% on flights from Ontario to Los Angeles. Saturday is the cheapest departure day at $199 round-trip on average, while Friday is the most expensive at $597, a difference of $398.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Ontario to Los Angeles?

    Flying via Las Vegas Harry Reid Intl (LAS) gives the shortest average 1-stop total travel time at 10h 18m, compared with 18h 50m via San Francisco (SFO).

  • What popular places can I visit in Los Angeles?

    Some of the most popular sights in Los Angeles are Venice Beach, Los Angeles Convention Center and Crypto.com Arena. These are among the most viewed places in Los Angeles on KAYAK.

Your guide to booking Ontario to Los Angeles flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Friday. On this route, Saturday flights average $199, about $398 less than Friday fares (67% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Los Angeles trip for December. Fares historically average $254 round-trip in that month - typically $373 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Los Angeles Airport.

    • Sonesta Los Angeles Airport LAX
    • Sheraton Gateway Los Angeles Hotel
    • Hyatt Regency Los Angeles International Airport

More options for your flight from Ontario to Los Angeles

Complete your trip to Los Angeles with a hotel stay or car rental

Car rentals in Los Angeles
Hotels in Los Angeles
Vacations in Los Angeles