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Flights from Las Vegas to Ontario
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Flights from Las Vegas to Ontario Starting at NZD 17

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        LAS06:05
        1h 6m
        Nonstop
        ONT07:11
        Fri, Jan 17|Las Vegas - Ontario|Frontier Airlines
        NZD 17NZD 30
        43% OFF
        43% OFF
        NZD 30NZD 17

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Fri, Jan 17, arriving at Ontario International Airport. One-way Prices start from NZD 17 including taxes and charges.

      • LAS12:35
        1h 12m
        Nonstop
        ONT13:47
        Thu, Jan 16|Las Vegas - Ontario|Frontier Airlines
        NZD 17NZD 30
        43% OFF
        43% OFF
        NZD 30NZD 17

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Thu, Jan 16, arriving at Ontario International Airport. One-way Prices start from NZD 17 including taxes and charges.

      • LAS10:36
        1h 8m
        Nonstop
        ONT11:44
        Wed, Jan 15|Las Vegas - Ontario|Frontier Airlines
        NZD 17NZD 30
        41% OFF
        41% OFF
        NZD 30NZD 17

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Wed, Jan 15, arriving at Ontario International Airport. One-way Prices start from NZD 17 including taxes and charges.

      • LAS10:25
        1h 7m
        Nonstop
        ONT11:32
        Fri, Jan 24|Las Vegas - Ontario|Frontier Airlines
        NZD 25
        NZD 25

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Fri, Jan 24, arriving at Ontario International Airport. One-way Prices start from NZD 25 including taxes and charges.

      • LAS06:00
        1h 6m
        Nonstop
        ONT07:06
        Thu, Jan 30|Las Vegas - Ontario|Frontier Airlines
        NZD 25
        NZD 25

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Thu, Jan 30, arriving at Ontario International Airport. One-way Prices start from NZD 25 including taxes and charges.

      • LAS14:10
        1h 9m
        Nonstop
        ONT15:19
        Fri, Feb 21|Las Vegas - Ontario|Frontier Airlines
        NZD 25
        NZD 25

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Fri, Feb 21, arriving at Ontario International Airport. One-way Prices start from NZD 25 including taxes and charges.

      • LAS14:10
        1h 9m
        Nonstop
        ONT15:19
        Wed, Feb 26|Las Vegas - Ontario|Frontier Airlines
        NZD 25
        NZD 25

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Wed, Feb 26, arriving at Ontario International Airport. One-way Prices start from NZD 25 including taxes and charges.

      • LAS06:20
        1h 6m
        Nonstop
        ONT07:26
        Thu, Mar 13|Las Vegas - Ontario|Frontier Airlines
        NZD 25
        NZD 25

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Thu, Mar 13, arriving at Ontario International Airport. One-way Prices start from NZD 25 including taxes and charges.

      • LAS06:05
        1h 9m
        Nonstop
        ONT07:14
        Fri, Jan 10|Las Vegas - Ontario|Frontier Airlines
        NZD 26
        NZD 26

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Fri, Jan 10, arriving at Ontario International Airport. One-way Prices start from NZD 26 including taxes and charges.

      • LAS10:36
        1h 8m
        Nonstop
        ONT11:44
        Wed, Jan 8|Las Vegas - Ontario|Frontier Airlines
        NZD 26
        NZD 26

        Choose Frontier Airlines flights from Las Vegas to Ontario. The one-way direct flight with Frontier Airlines departs from Harry Reid International Airport on Wed, Jan 8, arriving at Ontario International Airport. One-way Prices start from NZD 26 including taxes and charges.

      • LAS01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Mon, Jan 13|Las Vegas - Ontario|Frontier Airlines
        Find More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Las Vegas to Ontario

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Las Vegas to Ontario

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From NZD 17
Southwest Airlines
From NZD 111
American Airlines
From NZD 219
Alaska Airlines
From NZD 227
United Airlines
From NZD 276

Find more flights and airlines

Alternative Routes from Las Vegas to Ontario

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Las Vegas to Ontario.

  • Cheapest
    Frontier Airlines
    LAS
    12:35
    1h 12m
    Nonstop
    ONT
    13:47
    Harry Reid International Airport - Ontario International Airport
    Thu, Jan 16Frontier Airlines
    NZD 17
  • Frontier Airlines
    LAS
    12:35
    1h 12m
    Nonstop
    ONT
    13:47
    Harry Reid International Airport - Ontario International Airport
    Thu, Jan 16Frontier Airlines
    NZD 17
    Find More Flights

FAQ

  • When are flight tickets from Las Vegas (LAS) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from Las Vegas to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Las Vegas (LAS) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around NZD 255.

How to find a cheap flight from Las Vegas to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Las Vegas to Ontario. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Las Vegas to Ontario

Cheapest nonstop flight priceNZD 16
Cheapest round-trip ticket priceNZD 49
Off-season for travelFebruary
Peak season for travelMarch
Flight distance12,242.65 km
Popular airlineAmerican Airlines

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