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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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/28. 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.
Mon 12/88:13 pmLAS - ONT
Nonstop1h 04mFrontier
Tue 12/166:15 amONT - LAS
Nonstop1h 07mFrontier
Deal found 10/28$58
This Frontier deal was found by Cheapflights users on 10/29. 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.
Thu 12/412:56 pmLAS - ONT
Nonstop1h 08mFrontier
Mon 12/85:18 pmONT - LAS
Nonstop1h 09mFrontier
Deal found 10/29$59
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Wed 12/38:13 pmLAS - ONT
Nonstop1h 04mFrontier
Sat 12/66:15 amONT - LAS
Nonstop1h 07mFrontier
Deal found 10/27$60
This Frontier deal was found by Cheapflights users on 10/29. 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.
Thu 12/1112:56 pmLAS - ONT
Nonstop1h 08mFrontier
Fri 12/125:18 pmONT - LAS
Nonstop1h 09mFrontier
Deal found 10/29$71
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Sat 12/68:13 pmLAS - ONT
Nonstop1h 04mFrontier
Sun 12/76:15 amONT - LAS
Nonstop1h 07mFrontier
Deal found 10/29$73
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Mon 12/1512:56 pmLAS - ONT
Nonstop1h 08mFrontier
Sun 12/216:37 pmONT - LAS
Nonstop1h 11mFrontier
Deal found 10/29$78
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Thu 11/278:00 pmLAS - ONT
Nonstop1h 06mFrontier
Thu 12/42:59 pmONT - LAS
Nonstop1h 09mFrontier
Deal found 10/28$79
This Frontier deal was found by Cheapflights users on 10/28. 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.
Mon 11/178:51 pmLAS - ONT
Nonstop1h 06mFrontier
Tue 11/188:45 amONT - LAS
1 stop6h 39mFrontier
Deal found 10/28$82
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:51 pmLAS - ONT
Nonstop1h 06mFrontier
Tue 11/188:00 amONT - LAS
Nonstop1h 12mFrontier
Deal found 10/30$83
This Frontier deal was found by Cheapflights users on 10/29. 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.
Fri 11/1411:41 amLAS - ONT
Nonstop1h 10mFrontier
Mon 11/1710:43 pmONT - LAS
Nonstop1h 10mFrontier
Deal found 10/29$84
This Frontier deal was found by Cheapflights users on 10/29. 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.
Thu 11/1311:41 amLAS - ONT
Nonstop1h 10mFrontier
Sun 11/167:44 pmONT - LAS
Nonstop1h 11mFrontier
Deal found 10/29$85
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Thu 11/137:19 pmRNO - ONT
1 stop11h 58mFrontier
Sat 11/151:37 pmONT - RNO
1 stop4h 53mFrontier
Deal found 10/29$119

Cheap flight deals from Nevada to Ontario

Keep the following information in mind while searching for Nevada to Ontario flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$57
(Kiwi.com)

One-way from

$34
(Flightnetwork)

Popular in

March

Cheapest in

June

Average price

$80

Good round-trip deal

$72 or less

Good one-way deal

$75 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-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. 8% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($2 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 2025.
Use the filters below to find and compare flights from Nevada to Ontario that are best for you.

Fly from

Nevada

Fly to

Ontario

Route

Depart

Return

Price

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 11/20

1:15 pm-2:26 pm

Nonstop1h 11m

Ontario

Thu 11/20

3:31 pm-4:44 pm

Nonstop1h 13m

$87

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 12/4

11:10 am-12:10 pm

Nonstop1h 00m

Ontario

Mon 12/8

6:50 am-7:55 am

Nonstop1h 05m

$97

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mon 11/17

12:59 am-9:27 pm

1 stop20h 28m

Ontario

Wed 11/19

8:00 am-9:12 am

Nonstop1h 12m

$106

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 1/13

12:45 pm-1:50 pm

Nonstop1h 05m

Ontario

Wed 1/14

5:55 am-10:15 am

1 stop4h 20m

$107

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 11/12

12:34 pm-9:29 pm

1 stop8h 55m

Ontario

Wed 11/19

12:58 am-11:18 am

1 stop10h 20m

$110

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sun 12/28

8:23 pm-9:27 pm

Nonstop1h 04m

Ontario

Mon 1/12

6:30 am-7:37 am

Nonstop1h 07m

$119

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sat 11/22

9:00 am-10:11 am

Nonstop1h 11m

Ontario

Mon 11/24

6:30 am-7:40 am

Nonstop1h 10m

$120

RenoOntario

RNO - ONT

RNOONT

Reno

Thu 11/13

7:19 pm-12:51 pm

1 stop17h 32m

Ontario

Sat 11/15

1:37 pm-6:30 pm

1 stop4h 53m

$121

RenoOntario

RNO - ONT

RNOONT

Reno

Thu 11/13

7:19 pm-12:51 pm

1 stop17h 32m

Ontario

Mon 11/17

6:00 am-7:18 pm

1 stop13h 18m

$122

RenoOntario

RNO - ONT

RNOONT

Reno

Fri 11/14

11:51 am-11:50 pm

1 stop11h 59m

Ontario

Sat 11/15

1:37 pm-6:30 pm

1 stop4h 53m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 43 results
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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, February is the cheapest month in which you can book a flight from Nevada to Ontario (average of $27). Flying from Nevada to Ontario in September is currently the most expensive (average of $48). 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 October 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from Nevada to Ontario by exploring options for tickets in the morning.

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 December 16, 2024.

Travelers seeking maximum savings on their Nevada to Ontario flight should consider departing on Tuesday at noon 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, 55 users have taken a look at flights from Nevada to Ontario.

  • How long is the flight from Nevada to Ontario?

    Frontier and Southwest can get you from Nevada to Ontario in just under 1h. Your travel time will be generally consistent. Airlines will cover a distance of 197 mi. Generally, flights for this route are nonstop.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $49. Delta flights start at $129 while deals on United Airlines start at $140 one-way.

  • What are the cheapest flights from Nevada to Ontario?

    While on average a flight from Nevada to Ontario is generally $115, our data shows the cheapest flight currently is $34. When looking at the most popular route, (Las Vegas Harry Reid Intl - Ontario), you can expect to pay $39 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, February is the cheapest month in which you can book a flight from Nevada to Ontario (average of $27). Flying from Nevada to Ontario in September is currently the most expensive (average of $48). 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 5 airlines flying from Nevada to Ontario

Discover the top 5 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$92FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$44Average$64FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$84Average$276FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$174Average$260FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$278FlexibilityNo cancel feeOn-time69%

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