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Cheap flights from Las Vegas to Los Angeles from $29

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Los Angeles departing on 2/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Las Vegas to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
Frontier Logo
3:22 pm - 4:34 pm
ONT
-
LAS
1h 12mnonstop
$53Frontier
Thu, Feb 5 - Thu, Feb 5
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
Frontier Logo
3:24 pm - 4:36 pm
ONT
-
LAS
1h 12mnonstop
$54Frontier
Thu, Feb 26 - Thu, Feb 26
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
Frontier Logo
3:22 pm - 4:34 pm
ONT
-
LAS
1h 12mnonstop
$56Frontier
Tue, Feb 17 - Tue, Feb 24
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
Frontier Logo
7:22 pm - 8:31 pm
ONT
-
LAS
1h 09mnonstop
$57Frontier
Tue, Feb 17 - Thu, Feb 19
Frontier Logo
6:06 pm - 7:14 pm
LAS
-
ONT
1h 08mnonstop
Frontier Logo
3:24 pm - 4:36 pm
ONT
-
LAS
1h 12mnonstop
$58Frontier
Sat, Feb 14 - Sun, Feb 15
Frontier Logo
12:00 pm - 1:11 pm
LAS
-
ONT
1h 11mnonstop
Frontier Logo
10:18 pm - 11:29 pm
ONT
-
LAS
1h 11mnonstop
$59Frontier
Thu, Feb 12 - Sun, Feb 15
Frontier Logo
7:00 am - 8:06 am
LAS
-
ONT
1h 06mnonstop
Frontier Logo
10:57 am - 12:10 pm
ONT
-
LAS
1h 13mnonstop
$60Frontier
Fri, Mar 6 - Mon, Mar 9
Frontier Logo
5:17 pm - 6:27 pm
LAS
-
ONT
1h 10mnonstop
Frontier Logo
2:06 pm - 3:20 pm
ONT
-
LAS
1h 14mnonstop
$61Frontier
Thu, Mar 5 - Thu, Mar 12
Frontier Logo
8:21 pm - 9:29 pm
LAS
-
ONT
1h 08mnonstop
Frontier Logo
6:43 pm - 7:52 pm
ONT
-
LAS
1h 09mnonstop
$62Frontier
Sun, Mar 1 - Mon, Mar 2
Frontier Logo
4:39 pm - 5:48 pm
LAS
-
ONT
1h 09mnonstop
Frontier Logo
9:43 pm - 10:53 pm
ONT
-
LAS
1h 10mnonstop
$63Frontier
Mon, Feb 16 - Fri, Feb 20

Frontier flights from Las Vegas to Ontario

Our best Frontier deals on Las Vegas to Ontario flight tickets
Frontier
Feb 5
LAS12:00 pmLas Vegas Harry Reid Intl
1h 11m
ONT1:11 pmOntario
Feb 5
ONT3:22 pmOntario
1h 12m
LAS4:34 pmLas Vegas Harry Reid Intl
$53
Frontier
Feb 26
LAS12:00 pmLas Vegas Harry Reid Intl
1h 11m
ONT1:11 pmOntario
Feb 26
ONT3:24 pmOntario
1h 12m
LAS4:36 pmLas Vegas Harry Reid Intl
$54
Frontier
Feb 17
LAS12:00 pmLas Vegas Harry Reid Intl
1h 11m
ONT1:11 pmOntario
Feb 24
ONT3:22 pmOntario
1h 12m
LAS4:34 pmLas Vegas Harry Reid Intl
$56

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Las Vegas to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 2/5

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Thu 2/5

3:22 pm-4:34 pm

Nonstop1h 12m

$53

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 2/26

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Thu 2/26

3:24 pm-4:36 pm

Nonstop1h 12m

$54

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 2/17

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Tue 2/24

3:22 pm-4:34 pm

Nonstop1h 12m

$56

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 2/17

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Thu 2/19

7:22 pm-8:31 pm

Nonstop1h 09m

$57

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sat 2/14

6:06 pm-7:14 pm

Nonstop1h 08m

Ontario

Sun 2/15

3:24 pm-4:36 pm

Nonstop1h 12m

$58

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 2/12

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Sun 2/15

10:18 pm-11:29 pm

Nonstop1h 11m

$59

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fri 3/6

7:00 am-8:06 am

Nonstop1h 06m

Ontario

Mon 3/9

10:57 am-12:10 pm

Nonstop1h 13m

$60

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 3/5

5:17 pm-6:27 pm

Nonstop1h 10m

Ontario

Thu 3/12

2:06 pm-3:20 pm

Nonstop1h 14m

$61

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sun 3/1

8:21 pm-9:29 pm

Nonstop1h 08m

Ontario

Mon 3/2

6:43 pm-7:52 pm

Nonstop1h 09m

$62

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mon 2/16

4:39 pm-5:48 pm

Nonstop1h 09m

Ontario

Fri 2/20

9:43 pm-10:53 pm

Nonstop1h 10m

$63

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Las Vegas to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Las Vegas to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $71. If you aren’t able to travel during the month of January, then book flights to Ontario from Las Vegas during February instead. Flights to Ontario in February, while not as cheap as those in January, still average around $72.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $98. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Las Vegas to Ontario for around $138.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Las Vegas to Ontario when you can find flight prices for as low as $97. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $121 on average. Flights to Ontario from Las Vegas in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Las Vegas Harry Reid Intl to Ontario flight route?

Fly from Las Vegas Harry Reid Intl to Ontario for the best Las Vegas Harry Reid Intl - Ontario flight prices

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $103 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Las Vegas for as low as $77 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to Ontario flights?

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Las Vegas to Ontario flight prices changed over time?

As of January 2026, prices for Las Vegas to Ontario flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Las Vegas to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Ontario (LAS to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Ontario

Best Price Found

$87

Fastest flight time

1h 00m

Direct flights

Every day

Airports in Ontario

1 airport
The best one-way flight to Ontario from Las Vegas in the past 72 hours is $87. The best round-trip flight deal from Las Vegas to Ontario found on momondo in the last 72 hours is $71.
The fastest flight from Las Vegas to Ontario takes 1h 00m
Direct flights go from Las Vegas to Ontario every day.
There is 1 airport in Ontario. From Las Vegas there are direct flights to Ontario (ONT).
Search flight deals

  • How far is Las Vegas Harry Reid Intl to Ontario by plane?

    There are 203.5 mi between Las Vegas Harry Reid Intl and Ontario. 1h 00m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Ontario Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Ontario Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Las Vegas to Ontario?

  • What is the most popular airline from Las Vegas to Ontario?

Best airlines flying from Las Vegas to Ontario

Compare and see reviews for airlines that fly from Las Vegas to Ontario with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $33Free CancellationRating
6.3
8,362 reviews
Search Spirit Airlines flights
FrontierPriceFrom $42Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
SouthwestPriceFrom $84Free CancellationRating
8.0
4,266 reviews
Search Southwest flights

  • Southwest Flights From Las Vegas to Ontario

    Across 35 Southwest flights from Las Vegas to Ontario this week, the average price was $258, with the best Southwest deals starting from $84 round-trip. 4,266 users have rated Southwest on momondo, with an average score of 8.0/10.

  • Frontier Flights From Las Vegas to Ontario

    Frontier (5.7/10 from 3,056 reviews) operates around 1 flight from Las Vegas to Ontario in any given week. The average Frontier airfare for this route is around $99, with deals from around $42 rare but found on momondo. Referenced prices are for round-trip Las Vegas to Ontario flight searches in the last 72 hours.

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Las Vegas to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Las Vegas to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Las Vegas to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Las Vegas to Ontario?

Once you have performed a search for Las Vegas to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Las Vegas to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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