Cheap Alaska Airlines flights Seattle (SEA) to Las Vegas (LAS)

Finding cheap one-way Alaska Airlines flights from SEA to LAS on Expedia is a breeze — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares for your next exciting 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 one-way or return flights to Las Vegas in January or June. You could find an affordable fare with Alaska Airlines during these off-peak months.

Start searching one to three months ahead of your travel date to find cheap fares on Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) 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 your 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.

Easily travel from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) on one of Alaska Airlines’s 49 weekly direct flights. Make use of our “Nonstop” and “Airline” filters to find the Alaska Airlines flight that’ll land at LAS at a time that suits you.

On average, it takes 2h 33m to fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) with Alaska Airlines.

Alaska Airlines operates the most flights from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) on Sunday. With up to 8 daily departures, you’ll get the most flexibility and choice on this day.

Departing SEA at 7:00AM UTC-8, the first Alaska Airlines flight to LAS lands at 9:35AM UTC-8. Traveling early means you’re less likely to experience delays.* Not an early riser? The last Alaska Airlines flight from SEA to LAS departs at 9:29PM UTC-8 and touches down at 11:59PM UTC-8.*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.

Alaska Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Las Vegas come in to Harry Reid Intl. Airport (LAS). This is the main gateway to this destination.

Flying from SEA to LAS with Alaska Airlines means enjoying a host of benefits, including a rewarding loyalty program and top-tier customer service. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s on top of the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board a Boeing 737-900 or a Boeing 737 MAX 9 when flying Alaska Airlines from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS). However, keep in mind that a different aircraft could be assigned to your route due to operational reasons.

Changes are typically free within 24 hours of booking, but your airline may charge a fee after that. For more information about modifying your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without being charged, tick the “Changes included” or “No cancel fee” filter when organizing your next getaway.