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$34+ Cheap flights from Nevada to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ONT
Jul 23 — Jul 301
Do 7/23
Do 7/30
1 adult, Economy
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Cheap flight deals from Nevada to Ontario

Cheapest flights from Nevada to Ontario
Explore the most affordable flight options available from Nevada to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Juni 23, 2026.

This Super.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 7/31:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Sa 7/411:58 am
ONT
-
LAS
Nonstop1h 08m
Frontier
Deal found 6/22$55
This Super.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 6/301:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Mi 7/13:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/21$56
This Super.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/11:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Sa 7/43:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/20$65
This CheapOair deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/157:00 am
LAS
-
ONT
Nonstop1h 03m
Frontier
Mi 7/223:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/19$66
This Frontier deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 7/112:05 pm
LAS
-
ONT
Nonstop1h 09m
Frontier
Di 7/141:38 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/19$67
This Frontier deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 6/306:43 pm
LAS
-
ONT
Nonstop1h 08m
Frontier
Fr 7/33:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/22$75
This Super.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 7/282:05 pm
LAS
-
ONT
Nonstop1h 09m
Frontier
Di 8/253:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/19$86
This Frontier deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/292:05 pm
LAS
-
ONT
Nonstop1h 09m
Frontier
Di 8/43:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/18$88
This Mytrip deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 7/142:05 pm
LAS
-
ONT
Nonstop1h 09m
Frontier
Mi 7/153:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/19$97
This Expedia deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 8/48:47 pm
RNO
-
ONT
1 stop11h 16m
Frontier
Di 8/115:08 pm
ONT
-
RNO
1 stop19h 10m
Frontier
Deal found 6/23$210
This Mytrip deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 8/1912:11 pm
RNO
-
ONT
1 stop3h 43m
Frontier
Mi 8/263:40 pm
ONT
-
RNO
1 stop19h 36m
Frontier
Deal found 6/22$219
This CheapOair deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 8/1812:11 pm
RNO
-
ONT
1 stop3h 43m
Frontier
Mi 8/193:40 pm
ONT
-
RNO
1 stop19h 36m
Frontier
Deal found 6/22$220

Find flight deals from Nevada to Ontario

Keep the following information in mind while searching for Nevada to Ontario flight deals. Data was last updated Juni 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$55
(Super.com)

One-way from

$34
(CheapOair)

Popular in

May

Cheapest in

September

Average price

$139

Good round-trip deal

$198 or less

Good one-way deal

$127 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Los Angeles Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Los Angeles Los Angeles flights.
Search Deals
From Nevada to Ontario
Search Deals
One-way flight from Nevada to Ontario
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Nevada to Ontario.
Search Deals
Price to beat on a one-way flight from Nevada to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Nevada 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, Cheapflights users made 2,558,603 searches. Data last updated Juni 23, 2026.
Use the filters below to find and compare flights from Nevada to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sa 7/18

7:45 am-12:45 pm

1 stop5h 00m

Ontario

Sa 7/25

1:25 pm-8:50 pm

2 stops7h 25m

$242

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mi 11/18

1:15 pm-5:45 pm

1 stop4h 30m

Ontario

Do 11/19

12:50 pm-4:10 pm

1 stop3h 20m

$252
Quickest round-trip

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Do 8/6

8:50 am-9:55 am

Nonstop1h 05m

Ontario

Do 8/13

6:10 am-11:25 am

2 stops5h 15m

$262

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Di 7/28

5:10 pm-10:15 pm

2 stops5h 05m

Ontario

Mi 7/29

5:45 pm-9:20 pm

1 stop3h 35m

$264

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mo 7/20

4:45 pm-9:35 pm

2 stops4h 50m

Ontario

Di 7/21

5:15 am-8:30 am

1 stop3h 15m

$273

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fr 8/14

7:40 am-12:10 pm

1 stop4h 30m

Ontario

Sa 8/15

11:00 am-4:55 pm

2 stops5h 55m

$273

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sa 9/5

8:00 am-2:15 pm

2 stops6h 15m

Ontario

So 9/6

9:50 am-2:00 pm

1 stop4h 10m

$273

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sa 7/4

9:45 am-1:30 pm

1 stop3h 45m

Ontario

Mo 7/6

6:35 pm-9:50 pm

1 stop3h 15m

$283

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Di 8/25

6:00 am-12:12 pm

2 stops6h 12m

Ontario

Mi 8/26

9:01 am-2:03 pm

1 stop5h 02m

$290

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Do 7/16

6:35 pm-10:15 pm

1 stop3h 40m

Ontario

Sa 7/18

1:25 pm-8:50 pm

2 stops7h 25m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 44 resultsSorted by cheapest first
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Best time to book a flight from Nevada to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Nevada with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Nevada to Ontario

What is the cheapest month to book a flight from Nevada to Ontario?

Currently, November is the cheapest month in which you can book a flight from Nevada to Ontario (average of $19). Flying from Nevada to Ontario in April is currently the most expensive (average of $56). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NV to ONT?

Find hourly flight availability from Nevada to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Juni 23, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 45% on flights from Nevada to Ontario by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Nevada to Ontario?

How far ahead should I book a flight from Nevada to Ontario?

To ensure you get the cheapest price possible for a flight from Nevada to Ontario, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Nevada to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Nevada to Ontario. Price data was last updated on June 20, 2026.

Travelers seeking maximum savings on their Nevada to Ontario flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Nevada to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Nevada?

    For a flight from Nevada to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How popular is this Nevada to Ontario flight route?

    Within the past month, 32 users have taken a look at flights from Nevada to Ontario.

  • How long is the flight from Nevada to Ontario?

    Southwest and Frontier can get you from Nevada to Ontario in just under 4h 22m. Your travel time can differ by up to 38m. Airlines will cover a distance of 395 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Nevada to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $29. Southwest flights start at $48 while deals on United Airlines start at $78 one-way.

  • What are the most reliable airlines from Nevada to Ontario?

    The top 3 most reliable airlines when flying from Nevada to Ontario are Frontier (80%), Volaris (80%) and Southwest (57%).

  • What are the cheapest flights from Nevada to Ontario?

    While on average a flight from Nevada to Ontario is generally $234, our data shows the cheapest flight currently is $33. When looking at the most popular route, (Las Vegas Harry Reid Intl - Ontario), you can expect to pay $128 for that flight.

  • Can I find deals for flights from Nevada to Ontario that include hotel bookings?

    Yes. In addition to deals on Nevada to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Nevada to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Nevada to Ontario.

  • Can I find deals for business class flights from Nevada to Ontario?

    Yes. Cheapflights offers flight deals from Nevada to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Nevada to Ontario?

    Currently, November is the cheapest month in which you can book a flight from Nevada to Ontario (average of $19). Flying from Nevada to Ontario in April is currently the most expensive (average of $56). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Nevada to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Nevada to Ontario

Discover the top 3 airlines that operate flights from Nevada to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Juni 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$189FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$331FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$238Average$376FlexibilityNo cancel feeOn-time69%

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