$174 Cheap Flights from Marion (MWA) to Las Vegas (LAS)

View $174 flight on Tue, Aug 12, 2025Opens in a new window

Popular airlines from Marion, IL (MWA-Williamson County Regional) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Marion to Las Vegas (MWA-LAS)

Prices were available within the past 7 days and start at $174 for one-way flights and $354 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Contour Airlines
Sat, Sep 13 - Wed, Sep 24
MWA
Marion
LAS
Las Vegas
$354 Roundtrip, found 5 days ago
$354
Roundtrip
found 5 days ago
Select Contour Airlines flight, departing Sat, Sep 13 from Marion to Las Vegas, returning Wed, Sep 24, priced at $354 found 5 days ago
Contour Airlines
Wed, Aug 20 - Tue, Aug 26
MWA
Marion
LAS
Las Vegas
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Wed, Aug 20 from Marion to Las Vegas, returning Tue, Aug 26, priced at $358 found 4 days ago
Contour Airlines
Sat, Sep 13 - Tue, Sep 23
MWA
Marion
LAS
Las Vegas
$364 Roundtrip, found 5 days ago
$364
Roundtrip
found 5 days ago
Select Contour Airlines flight, departing Sat, Sep 13 from Marion to Las Vegas, returning Tue, Sep 23, priced at $364 found 5 days ago
Contour Airlines
Mon, Sep 29 - Wed, Oct 1
MWA
Marion
LAS
Las Vegas
$368 Roundtrip, found 3 days ago
$368
Roundtrip
found 3 days ago
Select Contour Airlines flight, departing Mon, Sep 29 from Marion to Las Vegas, returning Wed, Oct 1, priced at $368 found 3 days ago
Contour Airlines
Thu, Sep 11 - Wed, Sep 24
MWA
Marion
LAS
Las Vegas
$370 Roundtrip, found 5 days ago
$370
Roundtrip
found 5 days ago
Select Contour Airlines flight, departing Thu, Sep 11 from Marion to Las Vegas, returning Wed, Sep 24, priced at $370 found 5 days ago
Contour Airlines
Wed, Sep 10 - Tue, Sep 23
MWA
Marion
LAS
Las Vegas
$374 Roundtrip, found 5 days ago
$374
Roundtrip
found 5 days ago
Select Contour Airlines flight, departing Wed, Sep 10 from Marion to Las Vegas, returning Tue, Sep 23, priced at $374 found 5 days ago
Contour Airlines
Wed, Sep 10 - Fri, Sep 26
MWA
Marion
LAS
Las Vegas
$376 Roundtrip, found 5 days ago
$376
Roundtrip
found 5 days ago
Select Contour Airlines flight, departing Wed, Sep 10 from Marion to Las Vegas, returning Fri, Sep 26, priced at $376 found 5 days ago
Contour Airlines
Thu, Sep 25 - Wed, Oct 1
MWA
Marion
LAS
Las Vegas
$377 Roundtrip, found 3 days ago
$377
Roundtrip
found 3 days ago
Select Contour Airlines flight, departing Thu, Sep 25 from Marion to Las Vegas, returning Wed, Oct 1, priced at $377 found 3 days ago
Contour Airlines
Tue, Sep 30 - Wed, Oct 8
MWA
Marion
LAS
Las Vegas
$378 Roundtrip, found 3 days ago
$378
Roundtrip
found 3 days ago
Select Contour Airlines flight, departing Tue, Sep 30 from Marion to Las Vegas, returning Wed, Oct 8, priced at $378 found 3 days ago
Contour Airlines
Sat, Aug 23 - Mon, Aug 25
MWA
Marion
LAS
Las Vegas
$382 Roundtrip, found 4 days ago
$382
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Sat, Aug 23 from Marion to Las Vegas, returning Mon, Aug 25, priced at $382 found 4 days ago

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 $401
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $401
Flights from Marion (MWA) to Las Vegas (LAS)
Origin airport
Williamson County Regional
Destination airport
Harry Reid Intl.
Roundtrip price
$354
Distance
1443 mi

Marion to Las Vegas Flights

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

 

The best time to book a flight from Marion to Las Vegas

Sunday is one of the best days to book for cheap flights from Marion 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 Marion 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 Marion to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $174 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 Marion 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 Marion 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 Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from MWA to LAS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MWA to LAS?
The cheapest flights from MWA to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MWA to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MWA to LAS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS)?
There are no daily direct flights departing from Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from MWA to LAS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS)?
To reach Harry Reid Intl. Airport (LAS) on time, book a flight that leaves Williamson County Regional Airport (MWA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute bookings from MWA to LAS are typically more expensive. For the cheapest rates, start searching for flights well ahead of time. That being said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a MWA to LAS flight and hotel package?
Booking a MWA to LAS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Williamson County Regional Airport (MWA) to Harry Reid Intl. Airport (LAS)?
Typically, you're able to cancel or reschedule your MWA to LAS flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.