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Cheap flights from Las Vegas to Ontario from $19

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 Ontario departing on 12/18. 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

These are some of the best round-trip flight deals from Las Vegas to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Las Vegas to Los Angeles.

Cheap last minute flights

Planning a quick getaway from Las Vegas to Los Angeles? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Las Vegas to Los Angeles

Find recent round-trip train or bus tickets from Las Vegas to Los Angeles.

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$37Frontier
Find Deal
Fri, Dec 13 - Sun, Dec 15
6:55 pm - 7:59 pmLAS-ONT
1h 04mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$38Frontier
Find Deal
Thu, Dec 12 - Sun, Dec 15
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:59 pm - 10:08 pmONT-LAS
1h 09mnonstop
$41Frontier
Find Deal
Sat, Dec 14 - Sun, Dec 15
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
9:23 pm - 10:33 pmONT-LAS
1h 10mnonstop
$42Frontier
Find Deal
Sat, Dec 14 - Mon, Dec 16
11:30 am - 12:39 pmLAS-ONT
1h 09mnonstop
10:39 pm - 11:59 pmONT-LAS
1h 20mnonstop
$43Frontier
Find Deal
Wed, Dec 18 - Fri, Dec 20
11:30 am - 12:39 pmLAS-ONT
1h 09mnonstop
10:19 pm - 11:39 pmONT-LAS
1h 20mnonstop
$44Frontier
Find Deal
Wed, Dec 18 - Mon, Dec 23
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$46Frontier
Find Deal
Sat, Dec 7 - Sun, Dec 8
10:40 am - 11:48 amLAS-ONT
1h 08mnonstop
3:56 pm - 5:09 pmONT-LAS
1h 13mnonstop
$47Frontier
Find Deal
Thu, Dec 5 - Sat, Dec 7
10:51 pm - 4:34 pmLAS-ONT
17h 43m1 stop
1:29 pm - 9:54 pmONT-LAS
8h 25m1 stop
Sat, Dec 21 - Sun, Jan 5
12:20 pm - 6:27 pmLAS-ONT
6h 07m1 stop
9:55 am - 3:51 pmONT-LAS
5h 56m1 stop
$204American Airlines
Find Deal
Thu, Dec 12 - Tue, Dec 17
11:30 am - 12:39 pmLAS-ONT
1h 09mnonstop
$19Frontier
Find Deal
Wed, Dec 18
11:20 am - 12:29 pmLAS-ONT
1h 09mnonstop
$20Frontier
Find Deal
Thu, Dec 19
8:40 pm - 9:45 pmLAS-ONT
1h 05mnonstop
$83Southwest
Find Deal
Tue, Jan 21
8:40 pm - 9:45 pmLAS-ONT
1h 05mnonstop
$109Southwest
Find Deal
Tue, Feb 4
5:42 am - 9:12 amLAS-ONT
3h 30m1 stop
$115American Airlines
Find Deal
Fri, Dec 20
6:51 am - 12:07 pmLAS-ONT
5h 16m1 stop
$116American Airlines
Find Deal
Tue, Mar 4
12:04 pm - 9:27 pmLAS-ONT
9h 23m1 stop
$131Alaska Airlines
Find Deal
Wed, Mar 5
7:50 am - 4:59 pmLAS-ONT
9h 09m2 stops
$136Alaska Airlines
Find Deal
Tue, Mar 4
8:05 pm - 2:33 pmLAS-ONT
18h 28m1 stop
$173United Airlines
Find Deal
Tue, Dec 17
11:52 am - 8:40 pmLAS-ONT
8h 48m1 stop
$188United Airlines
Find Deal
Tue, Feb 18
3:51 pm - 4:58 pmLAS-ONT
1h 07mnonstop
10:52 pm - 11:53 pmONT-LAS
1h 01mnonstop
$81Frontier
Find Deal
Fri, Nov 22 - Sun, Nov 24
8:00 am - 9:04 amLAS-ONT
1h 04mnonstop
10:52 pm - 11:53 pmONT-LAS
1h 01mnonstop
$83Frontier
Find Deal
Fri, Nov 22 - Sun, Nov 24
11:22 am - 12:32 pmLAS-ONT
1h 10mnonstop
1:32 pm - 2:44 pmONT-LAS
1h 12mnonstop
$86Frontier
Find Deal
Thu, Nov 21 - Thu, Nov 28
5:50 am - 10:40 amLAS-ONT
4h 50m1 stop
9:40 am - 2:15 pmONT-LAS
4h 35m1 stop
$492Southwest
Find Deal
Fri, Nov 22 - Mon, Nov 25
12:31 pm - 6:29 pmLAS-ONT
5h 58m1 stop
7:30 pm - 10:39 pmONT-LAS
3h 09m1 stop
$561American Airlines
Find Deal
Thu, Nov 21 - Thu, Nov 21
5:57 am - 12:03 pmLAS-ONT
6h 06m1 stop
10:10 am - 3:20 pmONT-LAS
5h 10m1 stop
$566American Airlines
Find Deal
Thu, Nov 21 - Fri, Nov 22
6:08 am - 9:53 amLAS-ONT
3h 45m1 stop
6:00 am - 10:06 amONT-LAS
4h 06m1 stop
$947United Airlines
Find Deal
Mon, Nov 25 - Wed, Nov 27
10:35 am - 5:43 pmLAS-ONT
7h 08m1 stop
6:00 am - 7:03 pmONT-LAS
13h 03m1 stop
$950United Airlines
Find Deal
Thu, Nov 21 - Tue, Nov 26
4:30 pm - 1:27 pmLAS-ONT
20h 57m2 stops
4:21 pm - 8:20 amONT-LAS
15h 59m2 stops
$1,062Alaska Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26
10:36 pm - 1:27 pmLAS-ONT
14h 51m2 stops
4:21 pm - 1:24 pmONT-LAS
21h 03m2 stops
$1,171Alaska Airlines
Find Deal
Sun, Nov 24 - Mon, Nov 25
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$37Frontier
Find Deal
Fri, Dec 13 - Sun, Dec 15
6:55 pm - 7:59 pmLAS-ONT
1h 04mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$38Frontier
Find Deal
Thu, Dec 12 - Sun, Dec 15
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:59 pm - 10:08 pmONT-LAS
1h 09mnonstop
$41Frontier
Find Deal
Sat, Dec 14 - Sun, Dec 15
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
9:23 pm - 10:33 pmONT-LAS
1h 10mnonstop
$42Frontier
Find Deal
Sat, Dec 14 - Mon, Dec 16
11:30 am - 12:39 pmLAS-ONT
1h 09mnonstop
10:39 pm - 11:59 pmONT-LAS
1h 20mnonstop
$43Frontier
Find Deal
Wed, Dec 18 - Fri, Dec 20
11:30 am - 12:39 pmLAS-ONT
1h 09mnonstop
10:19 pm - 11:39 pmONT-LAS
1h 20mnonstop
$44Frontier
Find Deal
Wed, Dec 18 - Mon, Dec 23
6:05 am - 7:14 amLAS-ONT
1h 09mnonstop
8:04 am - 9:12 amONT-LAS
1h 08mnonstop
$46Frontier
Find Deal
Sat, Dec 7 - Sun, Dec 8
10:40 am - 11:48 amLAS-ONT
1h 08mnonstop
3:56 pm - 5:09 pmONT-LAS
1h 13mnonstop
$47Frontier
Find Deal
Thu, Dec 5 - Sat, Dec 7
6:00 am - 7:09 amLAS-ONT
1h 09mnonstop
10:39 pm - 11:59 pmONT-LAS
1h 20mnonstop
$48Frontier
Find Deal
Tue, Dec 24 - Wed, Jan 1
6:55 pm - 7:59 pmLAS-ONT
1h 04mnonstop
1:47 pm - 3:01 pmONT-LAS
1h 14mnonstop
$49Frontier
Find Deal
Thu, Dec 5 - Mon, Dec 9

Frontier flights from Las Vegas to Ontario

Our best Frontier deals on Las Vegas to Ontario flight tickets
Frontier
Dec 13
LAS6:05 amLas Vegas Harry Reid Intl
1h 09m
ONT7:14 amOntario
Dec 15
ONT8:04 amOntario
1h 08m
LAS9:12 amLas Vegas Harry Reid Intl
Frontier
Dec 12
LAS6:55 pmLas Vegas Harry Reid Intl
1h 04m
ONT7:59 pmOntario
Dec 15
ONT8:04 amOntario
1h 08m
LAS9:12 amLas Vegas Harry Reid Intl
Frontier
Dec 14
LAS6:05 amLas Vegas Harry Reid Intl
1h 09m
ONT7:14 amOntario
Dec 15
ONT8:59 pmOntario
1h 09m
LAS10:08 pmLas Vegas Harry Reid Intl

American Airlines flights from Las Vegas to Ontario

Our best American Airlines deals on Las Vegas to Ontario flight tickets
American Airlines
Dec 12
LAS12:20 pmLas Vegas Harry Reid Intl
6h 07m
1 stop
ONT6:27 pmOntario
Dec 17
ONT9:55 amOntario
5h 56m
1 stop
LAS3:51 pmLas Vegas Harry Reid Intl
American Airlines
Nov 27
LAS1:28 pmLas Vegas Harry Reid Intl
5h 01m
1 stop
ONT6:29 pmOntario
Nov 30
ONT6:10 amOntario
6h 28m
1 stop
LAS12:38 pmLas Vegas Harry Reid Intl
American Airlines
Nov 27
LAS4:30 pmLas Vegas Harry Reid Intl
5h 32m
1 stop
ONT10:02 pmOntario
Dec 1
ONT12:53 pmOntario
5h 24m
1 stop
LAS6:17 pmLas Vegas Harry Reid Intl

See travel insights to Los Angeles from

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 from Las Vegas to Ontario?

September. The cheapest time of year to fly to Ontario from Las Vegas is September. Most expensive is February

What is the cheapest day to depart Las Vegas for Ontario?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Las Vegas to Ontario?

At noon. Las Vegas to Ontario flights are approximately 26% more expensive in the afternoon than at noon

What is the cheapest Las Vegas to Ontario flight route?

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

How far in advance should you book Las Vegas to Ontario flights?

39 days before. The cheapest time to buy a flight from Las Vegas to Ontario is approximately 39 days to departure

Can stopping save me money on Las Vegas to Ontario flights?

No. A direct flight is the cheapest option for a flight between Las Vegas to Ontario.

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

As of November 2024, prices for Las Vegas to Ontario flights are approximately 15% more expensive 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

$19

Fastest flight time

1h 04m

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 $19. The best round-trip flight deal from Las Vegas to Ontario found on momondo in the last 72 hours is $37.
The fastest flight from Las Vegas to Ontario takes 1h 04m
Direct flights go from Las Vegas to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)

  • 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 04m 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 $29Free CancellationRating
6.3
8,174 reviews
Search Spirit Airlines flights
FrontierPriceFrom $38Free CancellationRating
6.1
3,539 reviews
Search Frontier flights
SouthwestPriceFrom $186Free CancellationRating
8.1
5,014 reviews
Search Southwest flights
  • Southwest Flights From Las Vegas to Ontario

    Across 34 Southwest flights from Las Vegas to Ontario this week, the average price was $250, with the best Southwest deals starting from $186 round-trip. 5,014 users have rated Southwest on momondo, with an average score of 8.1/10.

  • Frontier Flights From Las Vegas to Ontario

    Frontier (6.1/10 from 3,539 reviews) operates around 2 flights from Las Vegas to Ontario in any given week. The average Frontier airfare for this route is around $69, with deals from around $38 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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