$340 Cheap Flights from Las Vegas (LAS) to Marion (MWA)

View $340 flight on Mon, Nov 3, 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

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

Prices were available within the past 7 days and start at $340 for one-way flights and $388 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$388 Roundtrip, found 3 days ago
$388
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $388 found 3 days ago
American Airlines
Mon, Jan 12 - Thu, Jan 15
LAS
Las Vegas
MWA
Marion
$412 Roundtrip, found 5 days ago
$412
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Jan 12 from Las Vegas to Marion, returning Thu, Jan 15, priced at $412 found 5 days ago
American Airlines
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$467 Roundtrip, found 3 days ago
$467
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $467 found 3 days ago
American Airlines
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$487 Roundtrip, found 3 days ago
$487
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $487 found 3 days ago
Alaska Airlines
Sat, Nov 1 - Wed, Nov 5
LAS
Las Vegas
MWA
Marion
$597 Roundtrip, found 5 days ago
$597
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Las Vegas to Marion, returning Wed, Nov 5, priced at $597 found 5 days ago
United
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$636 Roundtrip, found 3 days ago
$636
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $636 found 3 days ago
Alaska Airlines
Sat, Nov 1 - Wed, Nov 5
LAS
Las Vegas
MWA
Marion
$673 Roundtrip, found 5 days ago
$673
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Las Vegas to Marion, returning Wed, Nov 5, priced at $673 found 5 days ago
United
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$1,114 Roundtrip, found 3 days ago
$1,114
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $1,114 found 3 days ago
United
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$1,282 Roundtrip, found 3 days ago
$1,282
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $1,282 found 3 days ago
United
Mon, Jan 5 - Wed, Jan 7
LAS
Las Vegas
MWA
Marion
$1,393 Roundtrip, found 3 days ago
$1,393
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 5 from Las Vegas to Marion, returning Wed, Jan 7, priced at $1,393 found 3 days ago

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA) cost?
Lock in a cheap one-way flight from $340 or cheap return flight from $388 from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA)?
Flying in January may help you find better deals, as it's the cheapest month for flights between LAS and MWA. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA)?
To find the cheapest airline that'll fly you from LAS to MWA, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA)?
There are no daily nonstop flights departing from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from LAS to MWA?
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 Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA)?
To land at Williamson County Regional Airport (MWA) on schedule, select a flight that takes off from Harry Reid Intl. Airport (LAS) 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 Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA) last-minute?
Waiting until right before your break to book a flight from LAS to MWA often results in higher prices. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to maximize your chances of landing a bargain.
Is it cheaper to book a LAS to MWA flight and hotel package?
Compared with arranging hotels and flights separately, booking a LAS to MWA flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place takes the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Williamson County Regional Airport (MWA)?
Generally, it's possible to cancel or reschedule your LAS to MWA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Williamson County Regional
Roundtrip price
$388
Distance
1443 mi

Book with confidence

Las Vegas to Marion Flights

The cheapest times to fly from Las Vegas to Marion

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

 

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

Sunday is one of the best days to book for cheap flights from Las Vegas to Marion: 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 Las Vegas to Marion

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 Las Vegas to Marion in 2025. You can also book with separate airlines for your outbound and return journeys, from $340 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 Las Vegas to Marion 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 Las Vegas to Marion 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.

 

Las Vegas to Marion Flights

Explore a world of travel with Expedia

*Available to One Key members.