$603 Cheap Flights from Las Cruces (LRU) to Ontario (ONT)

View $603 flight on Mon, Sep 15, 2025Opens in a new window

Popular airlines from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Las Cruces to Ontario (LRU-ONT)

Prices were available within the past 7 days and start at $603 for one-way flights and $745 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Advanced Air
Thu, Oct 16 - Wed, Oct 22
LRU
Las Cruces
ONT
Ontario
$745 Roundtrip, found 3 days ago
$745
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Oct 16 from Las Cruces to Ontario, returning Wed, Oct 22, priced at $745 found 3 days ago
Advanced Air
Thu, Oct 23 - Wed, Oct 29
LRU
Las Cruces
ONT
Ontario
$755 Roundtrip, found 3 days ago
$755
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Oct 23 from Las Cruces to Ontario, returning Wed, Oct 29, priced at $755 found 3 days ago
Advanced Air
Thu, Oct 23 - Thu, Oct 30
LRU
Las Cruces
ONT
Ontario
$765 Roundtrip, found 3 days ago
$765
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Oct 23 from Las Cruces to Ontario, returning Thu, Oct 30, priced at $765 found 3 days ago
Advanced Air
Thu, Sep 18 - Thu, Sep 25
LRU
Las Cruces
ONT
Ontario
$885 Roundtrip, found 5 days ago
$885
Roundtrip
found 5 days ago
Select Advanced Air flight, departing Thu, Sep 18 from Las Cruces to Ontario, returning Thu, Sep 25, priced at $885 found 5 days ago
Advanced Air
Mon, Sep 15 - Thu, Sep 25
LRU
Las Cruces
ONT
Ontario
$945 Roundtrip, found 5 days ago
$945
Roundtrip
found 5 days ago
Select Advanced Air flight, departing Mon, Sep 15 from Las Cruces to Ontario, returning Thu, Sep 25, priced at $945 found 5 days ago
Advanced Air
Fri, Sep 12 - Mon, Sep 15
LRU
Las Cruces
ONT
Ontario
$1,125 Roundtrip, found 3 days ago
$1,125
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Fri, Sep 12 from Las Cruces to Ontario, returning Mon, Sep 15, priced at $1,125 found 3 days ago
Advanced Air
Fri, Sep 12 - Tue, Sep 16
LRU
Las Cruces
ONT
Ontario
$1,155 Roundtrip, found 3 days ago
$1,155
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Fri, Sep 12 from Las Cruces to Ontario, returning Tue, Sep 16, priced at $1,155 found 3 days ago
Advanced Air
Fri, Sep 12 - Sun, Sep 14
LRU
Las Cruces
ONT
Ontario
$1,160 Roundtrip, found 3 days ago
$1,160
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Fri, Sep 12 from Las Cruces to Ontario, returning Sun, Sep 14, priced at $1,160 found 3 days ago
Advanced Air
Thu, Sep 11 - Mon, Sep 15
LRU
Las Cruces
ONT
Ontario
$1,190 Roundtrip, found 3 days ago
$1,190
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Sep 11 from Las Cruces to Ontario, returning Mon, Sep 15, priced at $1,190 found 3 days ago
Advanced Air
Thu, Sep 11 - Tue, Sep 16
LRU
Las Cruces
ONT
Ontario
$1,220 Roundtrip, found 3 days ago
$1,220
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Sep 11 from Las Cruces to Ontario, returning Tue, Sep 16, priced at $1,220 found 3 days ago
Advanced Air
Thu, Sep 11 - Sun, Sep 14
LRU
Las Cruces
ONT
Ontario
$1,225 Roundtrip, found 3 days ago
$1,225
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Thu, Sep 11 from Las Cruces to Ontario, returning Sun, Sep 14, priced at $1,225 found 3 days ago
Advanced Air
Sun, Oct 5 - Wed, Oct 15
LRU
Las Cruces
ONT
Ontario
$4,710 Roundtrip, found 3 days ago
$4,710
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Sun, Oct 5 from Las Cruces to Ontario, returning Wed, Oct 15, priced at $4,710 found 3 days ago
Advanced Air
Sun, Oct 5 - Sat, Oct 11
LRU
Las Cruces
ONT
Ontario
$4,720 Roundtrip, found 3 days ago
$4,720
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Sun, Oct 5 from Las Cruces to Ontario, returning Sat, Oct 11, priced at $4,720 found 3 days ago
Advanced Air
Sun, Oct 5 - Thu, Oct 16
LRU
Las Cruces
ONT
Ontario
$4,730 Roundtrip, found 3 days ago
$4,730
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Sun, Oct 5 from Las Cruces to Ontario, returning Thu, Oct 16, priced at $4,730 found 3 days ago
Advanced Air
Mon, Oct 13 - Thu, Oct 16
LRU
Las Cruces
ONT
Ontario
$4,785 Roundtrip, found 3 days ago
$4,785
Roundtrip
found 3 days ago
Select Advanced Air flight, departing Mon, Oct 13 from Las Cruces to Ontario, returning Thu, Oct 16, priced at $4,785 found 3 days ago
Advanced Air
Thu, Sep 18 - Wed, Sep 24
LRU
Las Cruces
ONT
Ontario
$4,870 Roundtrip, found 5 days ago
$4,870
Roundtrip
found 5 days ago
Select Advanced Air flight, departing Thu, Sep 18 from Las Cruces to Ontario, returning Wed, Sep 24, priced at $4,870 found 5 days ago
Advanced Air
Sun, Sep 21 - Fri, Sep 26
LRU
Las Cruces
ONT
Ontario
$4,875 Roundtrip, found 5 days ago
$4,875
Roundtrip
found 5 days ago
Select Advanced Air flight, departing Sun, Sep 21 from Las Cruces to Ontario, returning Fri, Sep 26, priced at $4,875 found 5 days ago
Flights from Las Cruces (LRU) to Ontario (ONT)
Origin airport
Las Cruces Intl.
Destination airport
Los Angeles - Ontario Intl.
Roundtrip price
$744
Distance
628 mi

Las Cruces to Ontario Flights

The cheapest times to fly from Las Cruces to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Cruces to Ontario are during the month of October. You can find some of the cheapest flights from Las Cruces to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Las Cruces to Ontario

Sunday is one of the best days to book for cheap flights from Las Cruces to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Las Cruces to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Cruces to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $603 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Cruces to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Cruces to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $603 or cheap return flight from $745 from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?
Planning your getaway for October is a great way to save, as it's the cheapest month for flights between LRU and ONT. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest LRU to ONT flight.
How many flights per day from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?
You'll have to take a flight with a layover if you're traveling from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from LRU to ONT?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?
To reach Los Angeles - Ontario Intl. Airport (ONT) on schedule, choose a flight that takes off from Las Cruces, NM (LRU-Las Cruces Intl.) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from LRU to ONT are generally more expensive. For the cheapest rates, start looking for flights well ahead of time. That being said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a LRU to ONT flight and hotel package?
You can save money by securing a LRU to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Las Cruces, NM (LRU-Las Cruces Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?
In most instances, you can reschedule or cancel your LRU to ONT flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

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*Available to One Key members.