HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$36+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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

Keep the following information in mind while searching for Nevada to Ontario flight deals. Data was last updated September 11, 2025.

Round-trip from

$71
(Southwest)

One-way from

$36
(Flightnetwork)

Popular in

March

Cheapest in

June

Average price

$74

Good round-trip deal

$89 or less

Good one-way deal

$55 or less
From Nevada to Ontario
Search Deals
One-way flight from Nevada to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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

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 September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:20 amLAS - ONT
Nonstop1h 05mSouthwest
Wed 10/89:10 pmONT - LAS
Nonstop1h 05mSouthwest
Deal found 9/11$71
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:00 pmLAS - ONT
Nonstop1h 00mSouthwest
Sun 10/269:05 pmONT - LAS
Nonstop1h 05mSouthwest
Deal found 9/11$73
This Frontier deal was found by Cheapflights users on 9/11. 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 10/310:27 amLAS - ONT
Nonstop1h 16mFrontier
Sun 10/510:28 pmONT - LAS
Nonstop1h 16mFrontier
Deal found 9/11$78
This Frontier deal was found by Cheapflights users on 9/10. 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.
Wed 10/87:33 pmLAS - ONT
Nonstop1h 09mFrontier
Wed 10/158:00 amONT - LAS
Nonstop1h 12mFrontier
Deal found 9/10$81
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 9/257:45 pmLAS - ONT
Nonstop1h 11mFrontier
Sun 9/286:00 amONT - LAS
Nonstop1h 11mFrontier
Deal found 9/11$82
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:10 amLAS - ONT
Nonstop1h 07mFrontier
Tue 9/308:00 amONT - LAS
Nonstop1h 11mFrontier
Deal found 9/11$83
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:10 amLAS - ONT
Nonstop1h 07mFrontier
Thu 9/259:16 amONT - LAS
Nonstop1h 08mFrontier
Deal found 9/10$85
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:49 pmLAS - ONT
Nonstop1h 07mFrontier
Wed 10/88:00 amONT - LAS
Nonstop1h 12mFrontier
Deal found 9/10$87
This CheapOair deal was found by Cheapflights users on 9/10. 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 10/257:33 pmLAS - ONT
Nonstop1h 09mFrontier
Sat 11/158:00 amONT - LAS
Nonstop1h 12mFrontier
Deal found 9/10$88
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:30 amLAS - ONT
Nonstop1h 07mFrontier
Tue 10/148:00 amONT - LAS
Nonstop1h 12mFrontier
Deal found 9/10$89
This CheapOair deal was found by Cheapflights users on 9/11. 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 9/1810:22 amLAS - ONT
Nonstop1h 16mFrontier
Wed 9/248:00 amONT - LAS
Nonstop1h 11mFrontier
Deal found 9/11$90
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:30 amRNO - ONT
1 stop4h 25mSouthwest
Wed 10/154:25 pmONT - RNO
1 stop6h 05mSouthwest
Deal found 9/11$140

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 September 11, 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 10/14

7:20 am-8:25 am

Nonstop1h 05m

Ontario

Wed 10/15

9:10 pm-10:15 pm

Nonstop1h 05m

$71

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 10/7

7:20 am-8:25 am

Nonstop1h 05m

Ontario

Wed 10/8

9:10 pm-10:15 pm

Nonstop1h 05m

$71

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fri 10/10

7:40 am-8:45 am

Nonstop1h 05m

Ontario

Mon 10/13

9:35 pm-10:40 pm

Nonstop1h 05m

$71

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fri 10/24

10:00 pm-11:00 pm

Nonstop1h 00m

Ontario

Sun 10/26

9:05 pm-10:10 pm

Nonstop1h 05m

$73

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mon 9/29

6:10 am-7:17 am

Nonstop1h 07m

Ontario

Thu 10/2

6:00 am-7:11 am

Nonstop1h 11m

$78

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Mon 10/27

10:00 pm-11:00 pm

Nonstop1h 00m

Ontario

Wed 11/5

8:55 pm-9:55 pm

Nonstop1h 00m

$82

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 9/23

8:49 pm-9:56 pm

Nonstop1h 07m

Ontario

Tue 9/30

8:00 am-9:11 am

Nonstop1h 11m

$83

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 10/1

8:49 pm-9:56 pm

Nonstop1h 07m

Ontario

Thu 10/9

6:05 am-7:16 am

Nonstop1h 11m

$87

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 10/30

8:00 am-9:10 am

Nonstop1h 10m

Ontario

Sun 11/2

7:44 pm-8:55 pm

Nonstop1h 11m

$87

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 10/29

7:33 pm-8:42 pm

Nonstop1h 09m

Ontario

Sun 11/2

10:43 pm-11:53 pm

Nonstop1h 10m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 43 results
1
2
3
...
5

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, August is the cheapest month in which you can book a flight from Nevada to Ontario (average of $246). Flying from Nevada to Ontario in March is currently the most expensive (average of $328). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Nevada to Ontario as you normally would.

Weekly flight availability from Nevada to Ontario

Explore weekly flight availability from Nevada to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from USNV to ONT are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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, 65 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 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 flights from Nevada to Ontario?

    While on average a flight from Nevada to Ontario is generally $103, our data shows the cheapest flight currently is $29. When looking at the most popular route, (Las Vegas Harry Reid Intl - Ontario), you can expect to pay $71 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, August is the cheapest month in which you can book a flight from Nevada to Ontario (average of $246). Flying from Nevada to Ontario in March is currently the most expensive (average of $328). 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
Dallas/Fort Worth to Las Vegas flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Newark to Los Angeles flights
O'Hare Intl to Las Vegas flights
Seattle to Los Angeles flights
Los Angeles to Las Vegas flights
Los Angeles to San Francisco flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
San Francisco to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Denver to Las Vegas flights
Dulles Intl to Las Vegas flights
San Jose to Los Angeles flights
Atlanta to Las Vegas flights
LaGuardia to Las Vegas flights
Hobby to Las Vegas flights
San Francisco to Los Angeles flights
Boston to Los Angeles flights
Reagan-National to Los Angeles flights
Burbank to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Boston to Las Vegas flights
Santa Ana to Las Vegas flights
Reagan-National to Las Vegas flights
O'Hare Intl to Los Angeles flights
San Francisco to Santa Ana flights
Dulles Intl to Los Angeles flights
Seattle to Ontario flights
Santa Ana to San Francisco flights
Seattle to San Diego flights
Los Angeles to San Jose flights
Minneapolis to Las Vegas flights
Seattle to San Francisco flights
John F Kennedy Intl to Ontario flights
Boston to San Francisco flights
Baltimore to Las Vegas flights
Ontario to San Francisco flights
Midway to Las Vegas flights
Portland to Los Angeles flights
George Bush Intcntl to Las Vegas flights
LaGuardia to San Francisco flights
San Jose to Las Vegas flights
Austin to Las Vegas flights
John F Kennedy Intl to San Diego flights
Love Field to Las Vegas flights

Top 4 airlines flying from Nevada to Ontario

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$87FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$279FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$288FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$254Average$287FlexibilityNo 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.