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$23+ Cheap flights from Ontario to Las Vegas (ONT - LAS)

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAS
Oct 24 — Oct 311
Thu 10/24
Thu 10/31
1 adult, Economy
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ONT - LAS
Oct 24 - Oct 31

Find cheap flights from Ontario to Las Vegas with Cheapflights

1. Tell us where you want to go
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The best prices from Ontario to Las Vegas Harry Reid Intl are usually found in January or October, booked 90 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Ontario to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 19, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

February

Cheapest in

January

Round-trip from

$46
(Cheapflightsfares)

One-way from

$23
(Cheapflightsfares)
Provider with most accurate pricing for Ontario-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Las Vegas Harry Reid Intl flights.
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High demand for flights, 29% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Ontario to Las Vegas Harry Reid Intl
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One-way flight from Ontario to Las Vegas Harry Reid Intl
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Find flight deals from Ontario to Las Vegas

Cheapest flights from Ontario to Las Vegas
Explore the most affordable flight options available from Ontario to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 10/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/292:00 pmONT - LAS
Nonstop1h 21mFrontier
Wed 10/307:20 amLAS - ONT
Nonstop1h 06mFrontier
Deal found 10/18$47
This Kissandfly.com deal was found by Cheapflights users on 10/18. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/247:58 amONT - LAS
2 stops14h 17mMultiple Airlines
Wed 11/278:00 amLAS - ONT
Nonstop1h 04mMultiple Airlines
Deal found 10/18$174
This Southwest deal was found by Cheapflights users on 10/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/54:05 pmONT - LAS
Nonstop1h 05mSouthwest
Tue 12/107:50 amLAS - ONT
Nonstop1h 05mSouthwest
Deal found 10/18$190

Find flights from Ontario to Las Vegas within your budget

Customize your flight search to find flights from Ontario to Las Vegas 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 2,583,289 searches. Data last updated October 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$46 - $202

Route

Depart

Return

Price

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Tue 10/29

Nonstop1h 21m

Las Vegas Harry Reid Intl

Wed 10/30

Nonstop1h 06m

$46

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Sun 11/24

2 stops14h 17m

Las Vegas Harry Reid Intl

Wed 11/27

Nonstop1h 04m

$174

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Thu 12/5

Nonstop1h 05m

Las Vegas Harry Reid Intl

Tue 12/10

Nonstop1h 05m

$190

OntarioLas Vegas Harry Reid Intl

ONT - LAS

ONTLAS

Ontario

Sun 11/10

1 stop3h 09m

Las Vegas Harry Reid Intl

Mon 11/11

1 stop3h 18m

$202

Flights are sorted by cheapest first

Deals found on 10/18

Compare providers for flights from Ontario to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Las Vegas in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy2 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
CheapflightsfaresPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
Kiwi.comPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyNo Information
CheapOairPrice Accuracy2 starsTrust Score*3 starsCancellation PolicyAirline Policy
PricelinePrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
Justfly.comPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
MytripPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas 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.

Travel insights for flights from Ontario to Las Vegas

Get recent, data-driven insights about flights from Ontario to Las Vegas including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ontario to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Las Vegas. Price data was last updated on October 18, 2024.

The price you pay for your flight from Ontario to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Las Vegas (average of $198). Flying from Ontario to Las Vegas in May is currently the most expensive (average of $256). 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 LAS?

Find hourly flight availability from Ontario to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 19, 2024.

A simple way to save on the total cost of your ticket is to fly from Ontario to Las Vegas in the evening. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Ontario to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Las Vegas. Price data was last updated on October 13, 2024.

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

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Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated October 19, 2024.
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.2
Very good
5,163 reviews
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,421 reviews
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,302 reviews
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Frontier
6.1
Okay
3,625 reviews
Southwest
8.2
Very good
5,163 reviews

Crew

8.7

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.2

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Ontario to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Ontario to Las Vegas?

    Las Vegas Harry Reid Intl is the airport most travelers will use when flying to Las Vegas from Ontario. Booking flights from Ontario (ONT) to Harry Reid Intl (LAS) should be relatively easy as there are 4 daily flights to Las Vegas from 7 different airlines. 1h 01m is how long a flight from Ontario to Las Vegas Harry Reid Intl will take if you book a nonstop flight.

  • Can I find flights from Ontario to Las Vegas for under $100 on Cheapflights?

    Yes, there are multiple flights from Ontario to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $46, but on average you can expect to pay $153.

  • Are there nonstop flights from Ontario to Las Vegas for under $100 on Cheapflights?

    Cheapflights has at least 2 direct flights from Ontario to Las Vegas under $100. A good price for a nonstop flight from Ontario to Las Vegas is less than $118.

  • Are there last-minute flights available from Ontario to Las Vegas for under $100?

    There are currently 5+ open flights from Ontario to Las Vegas within the next 7 days for less than $100.

  • How popular is this Ontario to Las Vegas flight route?

    The Ontario to Las Vegas Harry Reid Intl flight path was viewed by 281 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Ontario to Las Vegas round-trip?

    Currently priced at $46, Frontier will fly you from Ontario to Las Vegas and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $190 and $202, respectively. Users have found that Frontier is 49% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $23. However, be on the lookout for offers from American Airlines and Southwest, as they are both options that can get you from Ontario to Las Vegas for a low price.

  • What are the cheapest flights from Ontario to Las Vegas?

    Looking for the cheapest flight from Ontario to Las Vegas? While on average our users pay $127, our data indicates the cheapest price to be $20. The most popular route (Ontario - Las Vegas Harry Reid Intl), is priced around $37.

  • What does ONT to LAS mean?

    This is defined as Ontario Airport (ONT) and Las Vegas Harry Reid Intl Airport (LAS). Codes like Las Vegas Harry Reid Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Ontario to Las Vegas that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Las Vegas flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Las Vegas with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Las Vegas flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Ontario to Las Vegas?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Las Vegas that allow pets onboard?

    Many airlines flying from Ontario to Las Vegas offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Las Vegas?

    Yes, you can often find last-minute deals on Ontario to Las Vegas flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Las Vegas flight deals updated?

    The Ontario to Las Vegas flight deals you see on this page were last updated on 10/18.

  • What is the cheapest month to book a flight from Ontario to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Las Vegas (average of $198). Flying from Ontario to Las Vegas in May is currently the most expensive (average of $256). 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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Top 7 airlines flying from Ontario to Las Vegas

Discover the top 7 airlines that operate flights from Ontario to Las Vegas. 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 2,583,289 searches. Data last updated October 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$74FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$38Average$202FlexibilityNo cancel feeOn-time75%
FrontierCheapest$39Average$87FlexibilityNo cancel feeOn-time62%
DeltaCheapest$55Average$113FlexibilityNo cancel feeOn-timeN/A
Ravn AlaskaCheapest$86Average$138FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$157Average$240FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$199Average$463FlexibilityNo cancel feeOn-time71%
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