$316 Cheap United flights Miami (MIA) to Las Vegas (LAS)

Landing cheap one-way United Airlines flights from MIA to LAS from $316 on Expedia is a breeze — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $326 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for round-trip or one-way flights to Las Vegas in January or June. You could find lower fares with United Airlines during these quieter months.

Start searching one to three months ahead of your travel date to score cheaper fares on United Airlines flights from Miami Intl. Airport (MIA) to Harry Reid Intl. Airport (LAS). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use the “Nonstop” filter when looking for direct United Airlines flights from MIA to LAS. It’s also a great way to compare other carriers servicing the same nonstop route.

Search United Airlines’s earliest flights from MIA to LAS by using the “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Take a United Airlines flight from Miami Intl. Airport (MIA) to Las Vegas, and you’re most likely to land at Harry Reid Intl. Airport (LAS). This is the airline’s primary hub in this city.

A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to travel from MIA to LAS with United Airlines. Plus, when you join Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the ticket type you purchased, a fee is typically charged if you cancel or change your flight more than 24 hours after it’s confirmed. To secure tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when looking for flights. For more information on changing or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”