HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$40+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ONT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Nevada to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 18, 2025.

This Frontier deal was found by Cheapflights users on 12/16. 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.
Tue 12/304:13 pmLAS - ONT
Nonstop1h 09mFrontier
Wed 1/710:45 amONT - LAS
Nonstop1h 09mFrontier
Deal found 12/16$78
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Sun 12/288:23 pmLAS - ONT
Nonstop1h 04mFrontier
Wed 1/710:45 amONT - LAS
Nonstop1h 09mFrontier
Deal found 12/16$79
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Sun 12/288:23 pmLAS - ONT
Nonstop1h 04mFrontier
Sat 1/103:21 pmONT - LAS
Nonstop1h 06mFrontier
Deal found 12/16$85
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/258:13 pmLAS - ONT
Nonstop1h 04mFrontier
Tue 1/203:07 pmONT - LAS
Nonstop1h 12mFrontier
Deal found 12/16$87
This Trip.com deal was found by Cheapflights users on 12/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:33 pmLAS - ONT
Nonstop1h 09mFrontier
Sun 1/46:37 pmONT - LAS
Nonstop1h 11mFrontier
Deal found 12/17$96
This Super.com deal was found by Cheapflights users on 12/16. 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.
Sat 12/2710:18 pmLAS - ONT
Nonstop1h 03mFrontier
Sat 1/36:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/16$97
This Frontier deal was found by Cheapflights users on 12/18. 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.
Tue 12/308:13 pmLAS - ONT
Nonstop1h 04mFrontier
Fri 1/26:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/18$98
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Tue 12/308:13 pmLAS - ONT
Nonstop1h 04mFrontier
Thu 1/16:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/17$99
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/273:25 pmLAS - ONT
Nonstop1h 06mFrontier
Tue 12/306:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/17$100
This Super.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/258:13 pmLAS - ONT
Nonstop1h 04mFrontier
Sun 12/286:37 pmONT - LAS
Nonstop1h 11mFrontier
Deal found 12/16$106
This Super.com deal was found by Cheapflights users on 12/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:13 pmLAS - ONT
Nonstop1h 04mFrontier
Tue 12/306:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/18$107
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Fri 12/268:13 pmLAS - ONT
Nonstop1h 04mFrontier
Sun 12/286:00 amONT - LAS
Nonstop1h 07mFrontier
Deal found 12/16$108

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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$55
(Frontier)

One-way from

$40
(Frontier)

Popular in

March

Cheapest in

June

Average price

$102

Good round-trip deal

$76 or less

Good one-way deal

$81 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. 5% potential increase in price ($5 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 December 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 December 18, 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

Tue 1/6

2:00 pm-3:09 pm

Nonstop1h 09m

Ontario

Wed 1/7

10:45 am-11:54 am

Nonstop1h 09m

$58

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 2/18

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Wed 2/18

7:17 pm-8:26 pm

Nonstop1h 09m

$59

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 1/15

4:35 pm-5:44 pm

Nonstop1h 09m

Ontario

Thu 1/15

10:18 pm-11:29 pm

Nonstop1h 11m

$60

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fri 1/23

12:21 pm-1:32 pm

Nonstop1h 11m

Ontario

Fri 2/6

10:18 am-11:31 am

Nonstop1h 13m

$63

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 12/30

4:13 pm-5:22 pm

Nonstop1h 09m

Ontario

Fri 1/2

6:00 am-7:07 am

Nonstop1h 07m

$96

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sun 12/28

4:33 pm-5:42 pm

Nonstop1h 09m

Ontario

Tue 12/30

6:00 am-7:07 am

Nonstop1h 07m

$96

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 12/31

8:13 pm-9:17 pm

Nonstop1h 04m

Ontario

Sat 1/3

6:00 am-7:07 am

Nonstop1h 07m

$98

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 3/5

12:00 pm-1:11 pm

Nonstop1h 11m

Ontario

Fri 3/6

9:48 pm-10:58 pm

Nonstop1h 10m

$102

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 1/22

7:00 am-2:27 pm

1 stop7h 27m

Ontario

Mon 1/26

1:05 pm-2:17 pm

Nonstop1h 12m

$110

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 1/8

6:15 am-1:39 pm

1 stop7h 24m

Ontario

Sun 1/11

10:18 pm-11:29 pm

Nonstop1h 11m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 40 results
1
2
3
4

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 December 18, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from Nevada to Ontario by exploring options for tickets at noon.

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, 46 users have taken a look at flights from Nevada to Ontario.

  • How long is the flight from Nevada to Ontario?

    Frontier can get you from Nevada to Ontario in just under 1h 05m. 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $23. Frontier flights start at $24 while deals on Southwest start at $48 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 Volaris (100%), Frontier (87%) and Southwest (64%).

  • What are the cheapest flights from Nevada to Ontario?

    While on average a flight from Nevada to Ontario is generally $123, our data shows the cheapest flight currently is $40. When looking at the most popular route, (Las Vegas Harry Reid Intl - Ontario), you can expect to pay $58 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Nevada to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
Newark to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
O'Hare Intl to Las Vegas flights
Seattle to Los Angeles flights
San Francisco to Las Vegas flights
Seattle to Las Vegas flights
John F Kennedy Intl to San Francisco flights
O'Hare Intl to Los Angeles flights
Atlanta to Las Vegas flights
Dulles Intl to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
LaGuardia to Los Angeles flights
Los Angeles to Las Vegas flights
LaGuardia to Las Vegas flights
Boston to Los Angeles flights
Los Angeles to San Francisco flights
Dulles Intl to Los Angeles flights
Denver to Las Vegas flights
Hobby to Las Vegas flights
Reagan-National to Los Angeles flights
Newark to San Francisco flights
Boston to Las Vegas flights
Baltimore to Los Angeles flights
Reagan-National to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Burbank to Las Vegas flights
Baltimore to Las Vegas flights
Santa Ana to Las Vegas flights
San Francisco to Los Angeles flights
Seattle to San Diego flights
Minneapolis to Las Vegas flights
O'Hare Intl to San Francisco flights
Detroit to Las Vegas flights
San Jose to Las Vegas flights
Orlando to Las Vegas flights
Atlanta to Los Angeles flights
Seattle to Ontario flights
Hobby to Los Angeles flights
Ontario to San Francisco flights
George Bush Intcntl to Las Vegas flights
Philadelphia to Las Vegas flights
San Jose to Los Angeles flights
San Francisco to Ontario flights
John F Kennedy Intl to San Diego flights
Austin to Las Vegas flights
Midway to Los Angeles flights
Denver to Los Angeles flights

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$98FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$44Average$64FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$84Average$280FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$174Average$260FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$278FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.