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Nevada

$29+ Cheap flights from Ontario (ONT) to Nevada

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Nevada

Keep the following information in mind while searching for Ontario to Nevada flight deals. Data was last updated September 15, 2025.

Round-trip from

$59
(Cheapflightsfares)

One-way from

$29
(Southwest)

Popular in

March

Cheapest in

May

Average price

$100

Good round-trip deal

$99 or less

Good one-way deal

$70 or less
From Ontario to Nevada
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One-way flight from Ontario to Nevada
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Highest demand for flights based on searches. 5% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Nevada.
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Price to beat on a one-way flight from Ontario to Nevada.
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Find flight deals from Ontario to Nevada

Cheapest flights from Ontario to Nevada
Explore the most affordable flight options available from Ontario to Nevada. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 9/278:00 amONT - LAS
Nonstop1h 11mFrontier
Sat 9/2711:27 amLAS - ONT
Nonstop1h 16mFrontier
Deal found 9/14$59
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/18:00 amONT - LAS
Nonstop1h 11mFrontier
Wed 10/87:33 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 9/14$62
This Frontier deal was found by Cheapflights users on 9/14. 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 9/2910:28 pmONT - LAS
Nonstop1h 16mFrontier
Mon 10/66:10 amLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/14$63
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 10/48:00 amONT - LAS
Nonstop1h 11mFrontier
Mon 10/66:10 amLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/14$65
This Frontier deal was found by Cheapflights users on 9/15. 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 9/256:00 amONT - LAS
Nonstop1h 11mFrontier
Mon 10/67:45 pmLAS - ONT
Nonstop1h 11mFrontier
Deal found 9/15$66
This Frontier deal was found by Cheapflights users on 9/14. 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 9/278:00 amONT - LAS
Nonstop1h 11mFrontier
Mon 9/296:10 amLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/14$67
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Thu 9/259:16 amONT - LAS
Nonstop1h 08mFrontier
Sat 9/278:49 pmLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/13$70
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Thu 9/256:00 amONT - LAS
Nonstop1h 11mFrontier
Thu 9/2510:22 amLAS - ONT
Nonstop1h 16mFrontier
Deal found 9/14$72
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 9/2810:28 pmONT - LAS
Nonstop1h 16mFrontier
Thu 10/27:15 amLAS - ONT
Nonstop1h 11mFrontier
Deal found 9/14$73
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Fri 9/2610:28 pmONT - LAS
Nonstop1h 16mFrontier
Thu 10/27:15 amLAS - ONT
Nonstop1h 11mFrontier
Deal found 9/14$75
This Frontier deal was found by Cheapflights users on 9/14. 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 9/259:16 amONT - LAS
Nonstop1h 08mFrontier
Mon 9/296:10 amLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/14$77
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 9/248:00 amONT - LAS
Nonstop1h 11mFrontier
Fri 9/268:48 pmLAS - ONT
Nonstop1h 07mFrontier
Deal found 9/14$78

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Nevada 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 15, 2025.
Use the filters below to find and compare flights from Ontario to Nevada that are best for you.

Fly from

Ontario

Fly to

Nevada

Route

Depart

Return

Price

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Fri 10/17

9:35 pm-10:40 pm

Nonstop1h 05m

Las Vegas Harry Reid Intl

Tue 10/21

12:00 pm-4:40 pm

1 stop4h 40m

$86

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Tue 10/21

6:15 am-10:30 am

1 stop4h 15m

Las Vegas Harry Reid Intl

Tue 10/28

7:20 am-8:25 am

Nonstop1h 05m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Mon 11/17

8:55 pm-9:55 pm

Nonstop1h 00m

Las Vegas Harry Reid Intl

Tue 11/18

6:20 am-12:00 pm

1 stop5h 40m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Thu 12/4

8:55 pm-9:55 pm

Nonstop1h 00m

Las Vegas Harry Reid Intl

Sat 12/6

5:55 am-11:10 am

1 stop5h 15m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Sun 10/26

9:05 pm-10:10 pm

Nonstop1h 05m

Las Vegas Harry Reid Intl

Tue 10/28

6:10 pm-10:00 pm

1 stop3h 50m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Wed 10/8

6:30 pm-10:05 pm

1 stop3h 35m

Las Vegas Harry Reid Intl

Fri 10/10

10:00 pm-11:00 pm

Nonstop1h 00m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Mon 10/13

1:50 pm-6:10 pm

1 stop4h 20m

Las Vegas Harry Reid Intl

Tue 10/14

7:20 am-8:25 am

Nonstop1h 05m

$87

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Wed 10/8

7:15 pm-11:25 pm

1 stop4h 10m

Las Vegas Harry Reid Intl

Sat 10/11

11:15 am-12:25 pm

Nonstop1h 10m

$107

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Sat 11/1

3:50 pm-10:10 pm

1 stop6h 20m

Las Vegas Harry Reid Intl

Mon 11/3

5:30 am-9:15 am

1 stop3h 45m

$117

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

Tue 10/7

6:00 am-9:25 am

1 stop3h 25m

Las Vegas Harry Reid Intl

Tue 10/7

5:05 pm-10:05 pm

1 stop5h 00m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 45 results
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Best time to book a flight from Ontario to Nevada

Have a flexible travel schedule? Discover the best time to fly to Nevada from Ontario 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 Ontario to Nevada

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Nevada (average of $198). Flying from Ontario to Nevada in March is currently the most expensive (average of $269). 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 ONT to NV?

Find hourly flight availability from Ontario to Nevada. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

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

Weekly flight availability from Ontario to Nevada

Explore weekly flight availability from Ontario to Nevada. 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 15, 2025.

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

Reviews of airlines servicing Nevada

Get insights into the airlines that provide service to Nevada. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Nevada. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Ontario to Nevada, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Nevada. 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 from for flights from Ontario to Nevada?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Nevada.

  • How popular is this Ontario to Nevada flight route?

    Within the past month, 405 users have taken a look at flights from Ontario to Nevada.

  • How long is the flight from Ontario to Nevada?

    A quick flight from Ontario to Nevada can take about 1h 05m. Southwest provides one of the quickest options available for as low as $86. There are 197 mi between Ontario and Nevada. This flight may include one or multiple stops.

  • What are the most popular routes from Ontario to Nevada?

    The most popular flight routes from Ontario to Nevada are Ontario - Las Vegas Harry Reid Intl, Ontario - Reno and Ontario - Twin Falls Joslin.

  • What are the cheapest flights from Ontario to Nevada?

    Looking for the cheapest flight from Ontario to Nevada? While on average our users pay $131, our data indicates the cheapest price to be $29. The most popular route (Ontario - Las Vegas Harry Reid Intl), is priced around $46.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Nevada 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 Ontario to Nevada?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Nevada (average of $198). Flying from Ontario to Nevada in March is currently the most expensive (average of $269). 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.

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Alternative routes for Ontario to Nevada

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Nevada

Discover the top 6 airlines that operate flights from Ontario to Nevada. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$22Average$87FlexibilityNo cancel feeOn-time65%
FrontierCheapest$46Average$156FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$278FlexibilityNo cancel feeOn-time63%
DeltaCheapest$107Average$218FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$187Average$283FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$201Average$259FlexibilityNo cancel feeOn-time71%

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