Cheap Flights from Ontario International to Harry Reid International

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Compare Ontario International to Harry Reid International flight deals

Find the cheapest month or even day of the year to fly to Harry Reid International

Book the best Harry Reid International fare with no extra fees

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Flight deals from Ontario International to Harry Reid International

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Harry Reid International Airport? If you want to travel next month, return fares start from R 1,408. Find the lowest prices on one-way and return tickets right here.

Las Vegas.R 712 per passenger.Departing Thu, 1 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Thu, 1 Oct, arriving in Harry Reid International.Price includes taxes and charges.From R 712, select.

Las Vegas.R 722 per passenger.Departing Wed, 4 Nov.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Wed, 4 Nov, arriving in Harry Reid International.Price includes taxes and charges.From R 722, select.

Las Vegas.R 726 per passenger.Departing Wed, 30 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Wed, 30 Sep, arriving in Harry Reid International.Price includes taxes and charges.From R 726, select.

Las Vegas.R 926 per passenger.Departing Wed, 2 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 2 Dec, arriving in Harry Reid International.Price includes taxes and charges.From R 926, select.

Las Vegas.R 1,033 per passenger.Departing Wed, 2 Dec.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Wed, 2 Dec, arriving in Harry Reid International.Price includes taxes and charges.From R 1,033, select.

Las Vegas.R 1,420 per passenger.Departing Sat, 2 Jan.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Sat, 2 Jan, arriving in Harry Reid International.Price includes taxes and charges.From R 1,420, select.

Las Vegas.R 1,749 per passenger.Departing Mon, 1 Mar.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Mon, 1 Mar, arriving in Harry Reid International.Price includes taxes and charges.From R 1,749, select.

Las Vegas.R 1,749 per passenger.Departing Mon, 1 Feb.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Mon, 1 Feb, arriving in Harry Reid International.Price includes taxes and charges.From R 1,749, select.

Las Vegas.R 2,505 per passenger.Departing Wed, 7 Apr.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 7 Apr, arriving in Harry Reid International.Price includes taxes and charges.From R 2,505, select.

Las Vegas.R 2,508 per passenger.Departing Tue, 6 Apr.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 6 Apr, arriving in Harry Reid International.Price includes taxes and charges.From R 2,508, select.

Las Vegas.R 2,509 per passenger.Departing Wed, 12 May.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 12 May, arriving in Harry Reid International.Price includes taxes and charges.From R 2,509, select.

Las Vegas.R 2,509 per passenger.Departing Tue, 1 Jun.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 1 Jun, arriving in Harry Reid International.Price includes taxes and charges.From R 2,509, select.

Las Vegas.R 2,512 per passenger.Departing Wed, 12 May.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 12 May, arriving in Harry Reid International.Price includes taxes and charges.From R 2,512, select.

Las Vegas.R 2,512 per passenger.Departing Tue, 1 Jun.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 1 Jun, arriving in Harry Reid International.Price includes taxes and charges.From R 2,512, select.

Las Vegas.R 2,550 per passenger.Departing Tue, 13 Jul.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Ontario International on Tue, 13 Jul, arriving in Harry Reid International.Price includes taxes and charges.From R 2,550, select.

Find the cheapest month to fly from Ontario International to Harry Reid International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Harry Reid International flights are currently cheapest in October.

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Direct flights from Ontario International to Harry Reid International

Ontario International to Harry Reid International: Alternative routes

Compare routes from Ontario International to Las Vegas below. You may find an airport to fly into that's cheaper, faster, or easier than Harry Reid International.

Ontario to Las Vegas: Flight information

The things to know before you go.

Cheapest flight found	R 712
Cheapest month to fly	October
Average flight time	1 hr, 7 mins
Most popular airline	Southwest Airlines
Average flights per week	63

Finding cheap flights from Ontario International to Harry Reid International: Frequently asked questions

How much are return flights from Ontario International to Harry Reid International?

The best price we found for a return flight from Ontario International to Harry Reid International is R 1,360. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Ontario International to Harry Reid International?

1 hour and 7 minutes is the average flight time from Ontario International to Harry Reid International.

Which airlines fly direct from Ontario International to Harry Reid International?

Southwest Airlines, Frontier Airlines and Volaris fly direct from Ontario International to Harry Reid International.

How many flights are there a week from Ontario International to Harry Reid International?

As of September 2026, there are 63 flights per week flying from Ontario International to Harry Reid International.

When is the cheapest time to fly from Ontario International to Harry Reid International?

The cheapest month to fly from Ontario International to Harry Reid International is usually October.

Which upcoming date is cheapest to fly from Ontario International Airport to Harry Reid International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Harry Reid International Airport on Friday, 30 October 2026.

Can I get a direct flight from Ontario International Airport to Harry Reid International Airport?

Yes – the average flight time is 1 hour and 7 minutes.

How can I find the best flight deal to Harry Reid International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Harry Reid International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Las Vegas?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Ontario International Airport to Harry Reid International with?

Currently, Frontier Airlines offers the cheapest flight tickets to Harry Reid International.

Travelling from Ontario International Airport (ONT) to Harry Reid International Airport (LAS): what you need to know

The average duration of a direct flight from Ontario International Airport to Harry Reid International Airport is 1 hour 5 minutes.
Las Vegas's timezone is UTC-8, which is the same as Ontario.
Choose from 26 weekly Ontario International Airport to Harry Reid International Airport flights. The 05:25 departure with Southwest Airlines is the earliest flight available. Frontier Airlines operates the last service of the day at 22:21.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to catch your ONT to LAS flight.
Travelling during a peak month such as July? Public holidays and other popular seasons can mean longer lines and delays at security. Be extra cautious and arrive up to four hours before international flights and two hours before a domestic departure.
Southwest Airlines offers direct flights from Ontario International Airport to Harry Reid International Airport. Book with this popular carrier, then get ready to discover the sights in Las Vegas — and maybe even more of the United States if you have time.
The airline that passengers book most often on this route is Southwest Airlines.
Southwest Airlines is the most punctual carrier operating ONT to LAS flights. A dependable 81.7% of its services on this route arrive on time.
If you want to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from Ontario International Airport to Harry Reid International Airport. Here are the most popular stopovers between ONT and LAS:
- Phoenix Sky Harbour Airport
- Sacramento International Airport
- San Jose International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Harry Reid International Airport (LAS)

The lowest price we've found for a one-way Ontario International Airport to Harry Reid International Airport flight is R 712. A round-trip ticket is currently R 1,360. Depending on the availability and when you book, these fares could change.
It's usually best to book early if you want to get cheap tickets from ONT to LAS. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.
Plan your trip for May. That's the cheapest month for flights from Ontario International Airport to Harry Reid International Airport. If your travel dates are flexible, use the 'Whole month' tool to find the lowest price across each month.
Save time looking for cheap flights from ONT to LAS by creating a Price Alert. You'll receive an email or push notification on the app when a lower fare pops up.
Find the perfect flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Ontario International Airport to Harry Reid International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Ontario International Airport (ONT)

ONT is located at 2900 E. Airport Drive.
Ontario International Airport maintains a solid on-time record, so flight disruptions are less likely. Departures from ONT arrive on schedule 83% of the time.
To get to Ontario International Airport from central Ontario, it'll take about 15 minutes by car. This depends on traffic though. It's approximately 10 kilometres from the airport to the city centre.
You can expect a journey time of about 45 minutes when using public transport.
Looking for a convenient hotel near ONT? If you're boarding an early flight from Ontario International Airport to Harry Reid International Airport, these accommodation options will have you sleeping moments from your departure gate:

Arriving at Harry Reid International Airport (LAS)

If you're getting in on a late Ontario International Airport to Harry Reid International Airport flight, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and resting shortly after at one of these accommodation options near LAS:
Travel at your own pace with a Harry Reid International Airport rental car. Book your wheels from Dollar, Thrifty or Alamo and venture far and wide through Las Vegas and beyond.
Booking your ride from Harry Reid International Airport about one week ahead gives you the best chance of locking in a great deal.

Getting from Harry Reid International Airport (LAS) to central Las Vegas

You'll find LAS at 5757 Wayne Newton Boulevard.
Harry Reid International Airport to central Las Vegas has a drive time of around 10 minutes. It's approximately 8 kilometres away.
Travelling on public transport typically takes 25 minutes.

When to fly to Harry Reid International Airport (LAS)

The quietest month for a flight from Ontario International Airport to Harry Reid International Airport is March, while April is the most popular. Pick the ideal time to visit Las Vegas based on whether you prefer a bustling atmosphere or a more laid-back vibe.
Before locking in your flight from Ontario International Airport to Harry Reid International Airport, think about the kind of weather you like. July is the warmest month in Las Vegas, with the temperature ranging from 23ºC (73ºF) to 43ºC (109ºF).
January sees average temperatures of between 0ºC (32ºF) and 16ºC (61ºF). Look for cheap tickets from ONT to LAS sometime around then if you like cooler conditions.

Explore more of the United States

Las Vegas has plenty to offer, but there are so many other corners of the United States waiting to be discovered. Around 370 kilometres south-west of Las Vegas, a visit to Los Angeles will keep you busy. Start with leading attractions like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.
Around 418 kilometres south-east of Las Vegas, Phoenix is another essential stop in the United States. No visit is complete without checking out Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.