HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$46+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ONT
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
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 June 9, 2026.

This Super.com deal was found by Cheapflights users on 6/4. 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.
Wed 7/11:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Wed 7/83:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/4$65
This Frontier deal was found by Cheapflights users on 6/6. 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 6/301:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Wed 7/153:40 pm
ONT
-
LAS
Nonstop1h 11m
Frontier
Deal found 6/6$66
This Super.com deal was found by Cheapflights users on 6/5. 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.
Tue 6/301:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Fri 7/33:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/5$67
This Super.com deal was found by Cheapflights users on 6/6. 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.
Wed 7/16:43 pm
LAS
-
ONT
Nonstop1h 08m
Frontier
Sat 7/43:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/6$71
This Super.com deal was found by Cheapflights users on 6/6. 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.
Wed 9/303:00 pm
LAS
-
ONT
Nonstop1h 10m
Frontier
Mon 10/52:58 pm
ONT
-
LAS
Nonstop1h 10m
Frontier
Deal found 6/6$72
This Super.com deal was found by Cheapflights users on 6/8. 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.
Tue 6/301:55 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Wed 7/13:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/8$76
This Frontier deal was found by Cheapflights users on 6/6. 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 7/36:43 pm
LAS
-
ONT
Nonstop1h 08m
Frontier
Sat 7/43:34 pm
ONT
-
LAS
Nonstop1h 12m
Frontier
Deal found 6/6$77
This Super.com deal was found by Cheapflights users on 6/7. 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.
Mon 9/213:00 pm
LAS
-
ONT
Nonstop1h 10m
Frontier
Sat 9/269:49 pm
ONT
-
LAS
Nonstop1h 09m
Frontier
Deal found 6/7$79
This Frontier deal was found by Cheapflights users on 6/7. 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 9/249:10 am
LAS
-
ONT
Nonstop1h 11m
Frontier
Thu 9/242:58 pm
ONT
-
LAS
Nonstop1h 10m
Frontier
Deal found 6/7$80
This Super.com deal was found by Cheapflights users on 6/7. 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.
Tue 9/16:40 pm
LAS
-
ONT
Nonstop1h 08m
Frontier
Mon 9/149:49 pm
ONT
-
LAS
Nonstop1h 09m
Frontier
Deal found 6/7$84
This Frontier deal was found by Cheapflights users on 6/5. 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.
Sat 9/51:56 pm
LAS
-
ONT
Nonstop1h 13m
Frontier
Sat 9/262:58 pm
ONT
-
LAS
Nonstop1h 10m
Frontier
Deal found 6/5$85
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 8/111:25 pm
RNO
-
ONT
1 stop18h 38m
Frontier
Thu 8/1311:47 am
ONT
-
RNO
1 stop8h 15m
Frontier
Deal found 6/4$191

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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$65
(Super.com)

One-way from

$46
(Frontier)

Popular in

April

Cheapest in

June

Average price

$56

Good round-trip deal

$160 or less

Good one-way deal

$117 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. 9% potential increase in price ($8 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 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 June 9, 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
Quickest round-trip

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sat 9/12

5:55 am-12:20 pm

2 stops6h 25m

Ontario

Mon 9/14

12:35 pm-1:40 pm

Nonstop1h 05m

$196

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Fri 7/17

4:45 pm-9:35 pm

2 stops4h 50m

Ontario

Wed 7/22

6:25 pm-10:10 pm

1 stop3h 45m

$243

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 7/22

6:20 pm-10:37 pm

1 stop4h 17m

Ontario

Sat 7/25

1:50 pm-7:35 pm

1 stop5h 45m

$247

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 7/1

6:20 pm-10:37 pm

1 stop4h 17m

Ontario

Sat 7/4

1:50 pm-7:35 pm

1 stop5h 45m

$257

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 7/1

12:45 pm-6:35 pm

2 stops5h 50m

Ontario

Tue 7/7

5:45 pm-9:20 pm

1 stop3h 35m

$263

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 7/8

7:50 am-12:25 pm

1 stop4h 35m

Ontario

Fri 7/10

6:30 am-11:35 am

2 stops5h 05m

$263

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Tue 7/7

5:10 pm-10:15 pm

2 stops5h 05m

Ontario

Tue 7/14

10:20 am-2:45 pm

1 stop4h 25m

$286

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Wed 7/1

6:00 am-9:35 am

1 stop3h 35m

Ontario

Fri 7/10

6:30 am-11:35 am

2 stops5h 05m

$288

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 7/23

4:45 pm-9:35 pm

2 stops4h 50m

Ontario

Sun 7/26

4:50 pm-10:05 pm

2 stops5h 15m

$299

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sat 7/11

7:10 am-1:40 pm

2 stops6h 30m

Ontario

Sun 7/12

5:05 am-9:00 am

1 stop3h 55m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 45 resultsSorted by cheapest first
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, 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 June 9, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 42% on flights from Nevada to Ontario by exploring options for tickets in the evening.

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 June 9, 2026.

The most flights from USNV to ONT are scheduled on a Tuesday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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 57 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 8, 2026.

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

  • How long is the flight from Nevada to Ontario?

    Southwest, United Airlines, and Delta can get you from Nevada to Ontario in just under 4h 17m. Your travel time can differ by up to 2h 08m. Airlines will cover a distance of 197 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 (82%), Volaris (82%) and Southwest (74%).

  • What are the cheapest flights from Nevada to Ontario?

    While on average a flight from Nevada to Ontario is generally $196, our data shows the cheapest flight currently is $28. When looking at the most popular route, (Las Vegas Harry Reid Intl - Ontario), you can expect to pay $80 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

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.
Newark to San Francisco flights
John F Kennedy Intl to San Francisco flights
LaGuardia to San Francisco flights
Newark to Los Angeles flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Seattle to Los Angeles flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
Hobby to Las Vegas flights
San Francisco to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Atlanta to Las Vegas flights
Los Angeles to Las Vegas flights
O'Hare Intl to Los Angeles flights
LaGuardia to Los Angeles flights
Seattle to Ontario flights
Dulles Intl to Las Vegas flights
Seattle to San Francisco flights
George Bush Intcntl to Las Vegas flights
Hobby to Los Angeles flights
Dallas/Fort Worth to San Francisco flights
San Francisco to Ontario flights
Reagan-National to Los Angeles flights
Baltimore to Los Angeles flights
Newark to San Jose flights
Dulles Intl to Los Angeles flights
Detroit to Las Vegas flights
Atlanta to Los Angeles flights
LaGuardia to Las Vegas flights
Ontario to San Francisco flights
John F Kennedy Intl to Ontario flights
San Francisco to Los Angeles flights
John F Kennedy Intl to San Jose flights
San Francisco to San Diego flights
John F Kennedy Intl to Oakland flights
Seattle to San Diego flights
Los Angeles to San Francisco flights
Boston to Las Vegas flights
O'Hare Intl to San Francisco flights
Dallas/Fort Worth to Ontario flights
George Bush Intcntl to Los Angeles flights
Orlando to Las Vegas flights
Baltimore to Las Vegas flights
John F Kennedy Intl to San Diego flights
Reagan-National to Las Vegas flights
Dulles Intl to San Francisco flights
Denver to Las Vegas flights

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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$189FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$330FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$238Average$353FlexibilityNo 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.