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Cheap Flights from Los Angeles International to Ontario International

Your route at a glance

Cheapest dealR 2,235
Cheapest monthJanuary

Compare Los Angeles International 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 International to Ontario International

Looking for a cheap last-minute deal or the best return flight from Los Angeles International to Ontario International? Find the lowest prices on one-way and return tickets right here.
Ontario.R 914 per passenger.Departing Sat, 24 Jan.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Los Angeles International on Sat, 24 Jan, arriving in Ontario International.Price includes taxes and charges.From R 914, select.
Ontario.R 1,160 per passenger.Departing Mon, 16 Feb.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Los Angeles International on Mon, 16 Feb, arriving in Ontario International.Price includes taxes and charges.From R 1,160, select.
Ontario.R 1,501 per passenger.Departing Wed, 24 Dec.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Los Angeles International on Wed, 24 Dec, arriving in Ontario International.Price includes taxes and charges.From R 1,501, select.
Ontario.R 1,996 per passenger.Departing Sun, 22 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Los Angeles International on Sun, 22 Mar, arriving in Ontario International.Price includes taxes and charges.From R 1,996, select.
Ontario.R 5,910 per passenger.Departing Sun, 24 May.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Los Angeles International on Sun, 24 May, arriving in Ontario International.Price includes taxes and charges.From R 5,910, select.
Ontario.R 6,239 per passenger.Departing Fri, 14 Aug.One-way flight with Flair Airlines.Outbound indirect flight with Flair Airlines, departs from Los Angeles International on Fri, 14 Aug, arriving in Ontario International.Price includes taxes and charges.From R 6,239, select.
Ontario.R 8,120 per passenger.Departing Sun, 26 Jul.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Los Angeles International on Sun, 26 Jul, arriving in Ontario International.Price includes taxes and charges.From R 8,120, select.
Ontario.R 9,913 per passenger.Departing Sun, 21 Jun.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Los Angeles International on Sun, 21 Jun, arriving in Ontario International.Price includes taxes and charges.From R 9,913, select.

Find the cheapest month to fly from Los Angeles International 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 International to Ontario International flights are currently cheapest in January.
Dec
from R 1,501
Jan
from R 914
Feb
from R 1,160
Mar
from R 1,996
Apr
Find prices
May
from R 5,910
Jun
from R 9,913
Jul
from R 8,120
Aug
from R 6,239
Sep
Find prices
Oct
Find prices
Nov
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Los Angeles International to Ontario International: Alternative routes

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

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

The best price we found for a return flight from Los Angeles International to Ontario International is R 2,228. 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 International to Ontario International. But we found flights with one or more stops from R 2,235.
As of December 2025, there are no flights flying from Los Angeles International to Ontario International.
The cheapest month to fly from Los Angeles International to Ontario International is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Los Angeles International Airport to Ontario International Airport on Sunday, 11 January 2026.
No airlines currently offer direct flights between Los Angeles International Airport 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.
Currently, Frontier Airlines offers the cheapest flight tickets to Ontario International.

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

  • Los Angeles and Ontario are in the UTC-7 timezone. That means you won't have to adjust your watch after you land.

  • Your LAX to ONT flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak month like July? Public holidays and other popular seasons can lead to longer queues at check-in and security. Play things extra safe and get there up to four hours before international flights and two hours before domestic departures.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Los Angeles International Airport to Ontario International Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to explore the city of your choice. Top stopovers between LAX and ONT include:

    • Harry Reid Airport (formerly McCarran Airport)

    • Metropolitan Oakland International Airport

    • Norman Y. Mineta San Jose International Airport

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

  • R 914 is currently the best price for a one-way Los Angeles International Airport to Ontario International Airport flight. Return flights start at R 2,235. These fares may change based on demand and availability.

  • It's often best to book in advance if you're hoping to get cheap tickets from LAX to ONT. That's because flight prices are based on demand, which tends to rise closer to departure.

  • If you can be flexible with your travel dates, try using the 'Whole month' tool. It'll find the lowest price in every month when looking for a flight from Los Angeles International Airport to Ontario International Airport.

  • Never miss a deal on cheap flights from LAX to ONT by creating a Price Alert. You'll receive an email or notification on the app when a special offer becomes available.

  • Choose your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Los Angeles International Airport to Ontario International Airport.

Handy information about Los Angeles International Airport (LAX)

  • You'll find LAX at One World Way.

  • Los Angeles International Airport earns top marks for its on-time performance. 81.05% of flights that take off from LAX arrive at their destination on time.

  • To reach Los Angeles International Airport from central Los Angeles, it takes around 30 minutes if you're travelling by car. Of course, this depends on traffic conditions. It's approximately 32 kilometres from the airport to the city centre.

  • The trip on public transport typically takes 55 minutes.

  • Get your holiday off to a hassle-free start by staying near LAX. Whether you have an early flight from Los Angeles International Airport to Ontario International Airport or just don't want to be rushed, these stays are perfect:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

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

  • Ontario International Airport to central Ontario has a drive time of about 10 minutes. It's approximately 6 kilometres away.

  • It takes roughly 1 hour 30 minutes when travelling by public transport.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Los Angeles International Airport to Ontario International Airport is May, while August is the most popular. Pick the best time to visit Ontario based on whether you prefer a more relaxed vibe or a faster pace.

  • When booking your flight from Los Angeles International Airport to Ontario International Airport, consider the type of weather you enjoy. August is the warmest month in Ontario, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

  • January has average temperatures of between 4ºC (39ºF) and 23ºC (73ºF). Look for cheap tickets from LAX to ONT sometime around then if you like cooler conditions.

Explore more of United States

  • You've done Ontario, now it's time to explore other corners of United States. Travel about 56 kilometres west to Los Angeles to check off its popular sights. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you'll have a packed itinerary ahead.

  • San Diego is another essential stop in United States and is around 153 kilometres south of Ontario. No journey is complete without experiencing San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

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.