$264 Cheap Flights from Saint John (YSJ) to Las Vegas (LAS)

View $264 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Saint John, NB (YSJ) to Harry Reid Intl. Airport (LAS)

Cheap Flights from Saint John to Las Vegas (YSJ-LAS)

Prices were available within the past 7 days and start at $264 for one-way flights and $386 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Sep 29 - Thu, Oct 2
YSJ
Saint John
LAS
Las Vegas
$386 Roundtrip, found 3 days ago
$386
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Sep 29 from Saint John to Las Vegas, returning Thu, Oct 2, priced at $386 found 3 days ago
United
Thu, Oct 2 - Fri, Oct 3
YSJ
Saint John
LAS
Las Vegas
$451 Roundtrip, found 3 days ago
$451
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 2 from Saint John to Las Vegas, returning Fri, Oct 3, priced at $451 found 3 days ago
United
Sat, Oct 4 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$455 Roundtrip, found 3 days ago
$455
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 4 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $455 found 3 days ago
Air Canada
Tue, Sep 30 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$457 Roundtrip, found 3 days ago
$457
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Sep 30 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $457 found 3 days ago
United
Wed, Oct 1 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$461 Roundtrip, found 3 days ago
$461
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 1 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $461 found 3 days ago
United
Thu, Oct 2 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$467 Roundtrip, found 3 days ago
$467
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 2 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $467 found 3 days ago
Air Canada
Fri, Oct 3 - Sat, Oct 4
YSJ
Saint John
LAS
Las Vegas
$478 Roundtrip, found 3 days ago
$478
Roundtrip
found 3 days ago
Select Air Canada flight, departing Fri, Oct 3 from Saint John to Las Vegas, returning Sat, Oct 4, priced at $478 found 3 days ago
Air Canada
Thu, Oct 2 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$494 Roundtrip, found 3 days ago
$494
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Oct 2 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $494 found 3 days ago
Air Canada
Thu, Oct 2 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$528 Roundtrip, found 3 days ago
$528
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Oct 2 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $528 found 3 days ago
Air Canada
Thu, Oct 2 - Sun, Oct 5
YSJ
Saint John
LAS
Las Vegas
$555 Roundtrip, found 3 days ago
$555
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Oct 2 from Saint John to Las Vegas, returning Sun, Oct 5, priced at $555 found 3 days ago

Find the cheapest month to fly from Saint John (YSJ) to Las Vegas (LAS)

September is typically the cheapest month to fly

From $269 - $898 per traveler.

Graph displaying average flight prices per month

Flights from Saint John (YSJ) to Las Vegas (LAS)
Origin airport
Saint John
Destination airport
Harry Reid Intl.
Airlines serving
Air Canada, United
Roundtrip price
$367
Distance
2614 mi

Saint John to Las Vegas Flights

The cheapest times to fly from Saint John to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Saint John to Las Vegas are during the month of September. You can find some of the cheapest flights from Saint John to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Saint John to Las Vegas

Sunday is one of the best days to book for cheap flights from Saint John to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Saint John to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Saint John to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $264 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Saint John to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Saint John to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS) cost?
Lock in a cheap one-way flight from $264 or cheap return flight from $386 from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS)?
September is the cheapest month to fly from YSJ to LAS. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest YSJ to LAS flight.
How many flights per day from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS)?
Direct flights from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YSJ to LAS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS)?
To reach Harry Reid Intl. Airport (LAS) on time, opt for a flight that leaves from Saint John Airport (YSJ) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS) last-minute?
Holding off until just before your departure to book your flight from YSJ to LAS generally means paying more. While you may come across some last-minute offers, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a YSJ to LAS flight and hotel package?
You'll generally save money by securing a YSJ to LAS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Saint John Airport (YSJ) to Harry Reid Intl. Airport (LAS)?
It's usually possible to reschedule or cancel your YSJ to LAS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.