Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Tri-Cities to Las Vegas (TRI-LAS)

Prices were available within the past 7 days and start at $249 for one-way flights and $291 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Jan 11 - Sun, Jan 18
TRI
Tri-Cities
LAS
Las Vegas
$291 Roundtrip, found 4 days ago
$291
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jan 11 from Tri-Cities to Las Vegas, returning Sun, Jan 18, priced at $291 found 4 days ago
Delta
Tue, Mar 17 - Wed, Apr 1
TRI
Tri-Cities
LAS
Las Vegas
$311 Roundtrip, just found
$311
Roundtrip
just found
Select Delta flight, departing Tue, Mar 17 from Tri-Cities to Las Vegas, returning Wed, Apr 1, priced at $311 just found
American Airlines
Fri, Dec 12 - Wed, Dec 17
TRI
Tri-Cities
LAS
Las Vegas
$326 Roundtrip, found 4 days ago
$326
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 12 from Tri-Cities to Las Vegas, returning Wed, Dec 17, priced at $326 found 4 days ago
Delta
Sat, Mar 21 - Wed, Apr 1
TRI
Tri-Cities
LAS
Las Vegas
$345 Roundtrip, just found
$345
Roundtrip
just found
Select Delta flight, departing Sat, Mar 21 from Tri-Cities to Las Vegas, returning Wed, Apr 1, priced at $345 just found
American Airlines
Sun, Jan 11 - Sun, Jan 18
TRI
Tri-Cities
LAS
Las Vegas
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jan 11 from Tri-Cities to Las Vegas, returning Sun, Jan 18, priced at $351 found 4 days ago
Delta
Wed, Nov 12 - Tue, Dec 2
TRI
Tri-Cities
LAS
Las Vegas
$353 Roundtrip, found 4 days ago
$353
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 12 from Tri-Cities to Las Vegas, returning Tue, Dec 2, priced at $353 found 4 days ago
Delta
Tue, Nov 25 - Sat, Nov 29
TRI
Tri-Cities
LAS
Las Vegas
$358 Roundtrip, found 1 hour ago
$358
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Nov 25 from Tri-Cities to Las Vegas, returning Sat, Nov 29, priced at $358 found 1 hour ago
American Airlines
Sun, Jan 11 - Sun, Jan 18
TRI
Tri-Cities
LAS
Las Vegas
$364 Roundtrip, found 4 days ago
$364
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Jan 11 from Tri-Cities to Las Vegas, returning Sun, Jan 18, priced at $364 found 4 days ago
Delta
Sat, Dec 6 - Tue, Dec 9
TRI
Tri-Cities
LAS
Las Vegas
$365 Roundtrip, found 4 days ago
$365
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Dec 6 from Tri-Cities to Las Vegas, returning Tue, Dec 9, priced at $365 found 4 days ago
Delta
Tue, Jan 6 - Mon, Jan 12
TRI
Tri-Cities
LAS
Las Vegas
$377 Roundtrip, found 5 hours ago
$377
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Jan 6 from Tri-Cities to Las Vegas, returning Mon, Jan 12, priced at $377 found 5 hours ago

Find the cheapest month to fly from Blountville (TRI) to Las Vegas (LAS)

July is typically the cheapest month to fly

From $310 - $587 per traveler.

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $405
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $405

Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS) cost?
Secure a cheap one-way flight from $249 or cheap return flight from $291 from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS)?
The cheapest month to fly from TRI to LAS is January, when demand is low. Off-peak season is usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS)?
To find the cheapest airline flying from TRI to LAS, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS)?
Direct flights from Tri-Cities Regional Airport (TRI) 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 dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRI to LAS?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS)?
To avoid potential delays on the Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute fares from TRI to LAS are typically more expensive. For the lowest rates, start searching for flights well in advance. That said, if you can play around with your travel dates, it's possible to find a cheap fare right before your journey.
Is it cheaper to book a TRI to LAS flight and hotel package?
You can save money by securing a TRI 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 easy to manage everything in one place. After selecting your preferred accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to Harry Reid Intl. Airport (LAS)?
Typically, you're able to cancel or reschedule your TRI to LAS flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, visit our Customer Service portal.

Book with confidence

Tri-Cities to Las Vegas Flights

The cheapest times to fly from Tri-Cities 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 Tri-Cities to Las Vegas are during the month of January. You can find some of the cheapest flights from Tri-Cities to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tri-Cities to Las Vegas

Sunday is one of the best days to book for cheap flights from Tri-Cities 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 Tri-Cities 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 Tri-Cities to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $249 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 Tri-Cities 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 Tri-Cities 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.

 

Tri-Cities to Las Vegas Flights

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*Available to One Key members.