Cheap Flights from Las Vegas to Ontario

Cheapest flights from Las Vegas to Ontario

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Las Vegas to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$20

Frontier Airlines

Direct flight

1h 20m

12/17/2025

The cheapest one-way flight from Las Vegas to Ontario departs on 12/17/2025, is operated by Frontier Airlines and costs $20

Cheapest round trip flight

$72

Spirit Airlines

Direct flight

2h 27m

12/28/2025

The cheapest roundtrip flight from Las Vegas to Ontario departs on 12/28/2025, is operated by Spirit Airlines and costs $72

The fastest flight

1h 4m

Fastest flight from Las Vegas to Ontario takes 1h 4m

Direct flights

Several times a week

There are direct flights on this route 6 days a week: Su, Tu, We, Th, Fr, and Sa

Earliest flight

7:25 AM

Latest flight

10:55 PM

Direct flights count

53

Distance

321km

Timezone difference

0h

The distance between Las Vegas and Ontario is 321km (199 miles). There are 53 direct flights from Las Vegas to Ontario. Las Vegas and Ontario are in the same time zone. Flights from Las Vegas begin at 7:25 AM. The latest flight from Las Vegas departs at 10:55 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Las Vegas to Ontario by month

The cost of a one-way flight from Las Vegas to Ontario ranges from $20 (December 2025) to $156 (July 2026). On average, the ticket price is about $91–$112.

December 2025

Lowest price

on average:

$20

July 2026

Highest price

on average:

$156

Avg Price

Airlines operating on route

Flights from Las Vegas to Ontario are operated by several airlines — Frontier Airlines, Spirit Airlines, and United Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $20, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.

Frontier Airlines

Starting at $20

Spirit Airlines

Starting at $36

United Airlines

Starting at $85

Direct Flights from Las Vegas to Ontario

A direct flight is the most convenient and comfortable way to fly from Las Vegas to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.

Las Vegas — Los Angeles

LAS — LAX

12/17/2025

Departure

Direct flight

F91183

Starting at $20

Las Vegas — Ontario

LAS — ONT

12/11/2025

Departure

Direct flight

F92231

Starting at $20

Las Vegas — Los Angeles

LAS — LAX

01/13/2026

Departure

Direct flight

F91183

Starting at $28

Las Vegas — Los Angeles

LAS — LAX

03/14/2026

Departure

Direct flight

F93291

Starting at $28

Las Vegas — Los Angeles

LAS — LAX

01/06/2026

Departure

Direct flight

F92263

Starting at $30

Las Vegas — Los Angeles

LAS — LAX

01/06/2026

Departure

Direct flight

F91183

Starting at $30

Las Vegas — Los Angeles

LAS — LAX

12/23/2025

Departure

Direct flight

NK1900

Starting at $36

Las Vegas — Los Angeles

LAS — LAX

12/14/2025

Departure

Direct flight

F91183

Starting at $42

Las Vegas — Los Angeles

LAS — LAX

12/10/2025

Departure

Direct flight

F91183

Starting at $43

Las Vegas — Los Angeles

LAS — LAX

12/12/2025

Departure

Direct flight

F91183

Starting at $44

Schedule of direct flights from Las Vegas to Ontario

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Las Vegas to Ontario:

Unable to find information about the schedule of direct flights from

Las Vegas airports overview

McCarran International Airport

•

LAS

4km

•

Ontario airports overview

Ontario International Airport

•

ONT

5km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

How much is the cheapest flight ticket from Las Vegas to Ontario?

The cheapest flight ticket from Las Vegas to Ontario according to data for the last 48 hours costs $20

When is the best time to buy air tickets on the route Las Vegas — Ontario?

Often the best time to buy tickets from Las Vegas to Ontario is 2 months before departure.

When is the cheapest time of year to fly from Las Vegas to Ontario?

Based on statistics over the past years, the lowest prices for flights from Las Vegas to Ontario can be found flying in these months: December, February, January.

How long does it take to fly from Las Vegas to Ontario?

The fastest flights from Las Vegas to Ontario start from 1 hour 4 minutes in the air.

Which airline can fly direct from Las Vegas to Ontario?

The following airlines operate direct flights on the route Las Vegas — Ontario: Frontier Airlines, Spirit Airlines

Special offers and sales on air tickets from Las Vegas to Ontario

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Las Vegas to Ontario

Alternative routes

Bakersfield ➜ Ontario•Fresno ➜ Ontario•Long Beach ➜ Ontario•Mexicali ➜ Ontario•Phoenix ➜ Ontario•Santa Barbara ➜ Ontario•Tijuana ➜ Ontario•Yuma ➜ Ontario•Las Vegas ➜ Bakersfield•Las Vegas ➜ Fresno•Las Vegas ➜ Long Beach•Las Vegas ➜ Merced•Las Vegas ➜ Modesto•Las Vegas ➜ Mexicali•Las Vegas ➜ Santa Barbara•Las Vegas ➜ Santa Maria•Las Vegas ➜ Tijuana•Las Vegas ➜ Yuma

•••••••••••••••••••

Cheapest one way flight

$20

Frontier Airlines

Direct flight

1h 20m

12/17/2025

The cheapest one-way flight from Las Vegas to Ontario departs on 12/17/2025, is operated by Frontier Airlines and costs $20

Cheapest round trip flight

$72

Spirit Airlines

Direct flight

2h 27m

12/28/2025

The cheapest roundtrip flight from Las Vegas to Ontario departs on 12/28/2025, is operated by Spirit Airlines and costs $72

The fastest flight