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Nevada

$35+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAS
ene. 16 — ene. 231
vie. 1/16
vie. 1/23
1 adult, Economy
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Cheap 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 diciembre 17, 2025.

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.
lun. 12/296:00 amONT - LAS
Nonstop1h 07mFrontier
mar. 1/62:00 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 12/16$78
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.
sáb. 12/276:00 amONT - LAS
Nonstop1h 07mFrontier
sáb. 1/310:18 pmLAS - ONT
Nonstop1h 03mFrontier
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.
lun. 12/296:00 amONT - LAS
Nonstop1h 07mFrontier
mié. 12/314:06 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 12/16$97
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.
dom. 12/286:00 amONT - LAS
Nonstop1h 07mFrontier
lun. 12/294:06 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 12/16$99
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.
vie. 12/266:00 amONT - LAS
Nonstop1h 07mFrontier
lun. 12/298:13 pmLAS - ONT
Nonstop1h 04mFrontier
Deal found 12/17$106
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/256:07 pmONT - LAS
Nonstop1h 11mFrontier
dom. 12/288:23 pmLAS - ONT
Nonstop1h 04mFrontier
Deal found 12/17$107
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/266:00 amONT - LAS
Nonstop1h 07mFrontier
dom. 12/284:33 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 12/17$108
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.
mié. 12/316:00 amONT - LAS
Nonstop1h 07mFrontier
vie. 1/24:01 pmLAS - ONT
Nonstop1h 08mFrontier
Deal found 12/16$109
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.
mar. 12/306:00 amONT - LAS
Nonstop1h 07mFrontier
vie. 1/24:01 pmLAS - ONT
Nonstop1h 08mFrontier
Deal found 12/16$110
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/246:00 amONT - LAS
Nonstop1h 07mFrontier
dom. 12/284:33 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 12/17$116
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/316:00 amONT - RNO
1 stop3h 46mUnited Airlines
mié. 1/76:00 amRNO - ONT
1 stop5h 18mUnited Airlines
Deal found 12/16$329
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/225:05 amONT - RNO
1 stop7h 37mUnited Airlines
jue. 1/16:00 amRNO - ONT
1 stop4h 01mUnited Airlines
Deal found 12/15$345

Find flight deals from Ontario to Nevada

Keep the following information in mind while searching for Ontario to Nevada flight deals. Data was last updated diciembre 17, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$57
(Kiwi.com)

One-way from

$35
(Frontier)

Popular in

December

Cheapest in

May

Average price

$121

Good round-trip deal

$118 or less

Good one-way deal

$85 or less
Provider with most accurate pricing for Los Angeles-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Las Vegas Harry Reid Intl flights.
Search Deals
From Ontario to Nevada
Search Deals
One-way flight from Ontario to Nevada
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($1 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 Ontario to Nevada.
Search Deals
Price to beat on a one-way flight from Ontario to Nevada.
Search Deals

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 diciembre 17, 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

sáb. 1/24

8:30 am-4:00 pm

2 stops7h 30m

Las Vegas Harry Reid Intl

mié. 1/28

9:00 am-10:05 am

Nonstop1h 05m

$167

OntarioReno

ONT - RNO

ONTRNO

Ontario

vie. 1/16

10:18 pm-10:40 am

1 stop12h 22m

Reno

lun. 1/19

9:37 pm-1:37 pm

1 stop16h 00m

$174

OntarioReno

ONT - RNO

ONTRNO

Ontario

lun. 3/2

3:28 pm-7:21 pm

1 stop3h 53m

Reno

sáb. 3/7

3:44 pm-9:03 pm

1 stop5h 19m

$181

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

jue. 2/19

5:30 am-8:40 am

1 stop3h 10m

Las Vegas Harry Reid Intl

vie. 2/20

5:30 am-9:10 am

1 stop3h 40m

$194

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

jue. 1/29

5:45 pm-10:25 pm

1 stop4h 40m

Las Vegas Harry Reid Intl

sáb. 1/31

5:50 am-12:55 pm

2 stops7h 05m

$196

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

sáb. 1/10

8:30 am-4:00 pm

2 stops7h 30m

Las Vegas Harry Reid Intl

lun. 1/12

3:25 pm-9:05 pm

1 stop5h 40m

$196

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

jue. 1/8

5:45 pm-10:25 pm

1 stop4h 40m

Las Vegas Harry Reid Intl

sáb. 1/17

5:50 am-12:55 pm

2 stops7h 05m

$196

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

sáb. 2/7

8:30 am-4:00 pm

2 stops7h 30m

Las Vegas Harry Reid Intl

lun. 2/9

4:35 pm-10:20 pm

1 stop5h 45m

$196

OntarioReno

ONT - RNO

ONTRNO

Ontario

lun. 1/12

6:00 am-7:29 pm

2 stops13h 29m

Reno

mié. 1/14

11:35 am-5:54 pm

1 stop6h 19m

$214

OntarioLas Vegas

ONT - LAS

ONTLAS

Ontario

vie. 2/6

3:35 pm-9:15 pm

1 stop5h 40m

Las Vegas Harry Reid Intl

lun. 2/9

6:00 am-10:05 am

1 stop4h 05m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 42 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, January is the cheapest month in which you can book a flight from Ontario to Nevada (average of $37). Flying from Ontario to Nevada in July is currently the most expensive (average of $49). 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 diciembre 17, 2025.

It’s optimal to fly from Ontario to Nevada in the morning. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Ontario to Nevada?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Nevada. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Nevada flight should consider departing on Monday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 diciembre 17, 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
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,092 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,049 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Spirit Airlines
6.3
Okay
8,186 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,250 reviews

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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, 391 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 3h 53m. Southwest provides one of the quickest options available for as low as $181. There are 395 mi between Ontario and Nevada. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Ontario to Nevada are Spirit Airlines ($22), Frontier ($24), and Delta ($38).

  • 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 most reliable airlines from Ontario to Nevada?

    Before booking your flight to Nevada from Ontario, check out the most reliable airlines to get you to your destination on time: Southwest (84%), Volaris (83%), Frontier( 81%).

  • What are the cheapest flights from Ontario to Nevada?

    Looking for the cheapest flight from Ontario to Nevada? While on average our users pay $150, our data indicates the cheapest price to be $42. The most popular route (Ontario - Las Vegas Harry Reid Intl), is priced around $57.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Nevada (average of $37). Flying from Ontario to Nevada in July is currently the most expensive (average of $49). 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 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 diciembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$24Average$83FlexibilityNo cancel feeOn-time65%
FrontierCheapest$48Average$152FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$274FlexibilityNo cancel feeOn-time63%
DeltaCheapest$127Average$228FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$187Average$281FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$273FlexibilityNo cancel feeOn-time71%

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