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

You can find affordable return Alaska Airlines flights from LAS to SEA by filtering your results from “Price (lowest to highest)” on Expedia. Or search for options for a one-way journey.**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.

Alaska Airlines flights to Seattle are usually more affordable in the off-peak months of January and February. Whether you’re searching for a return or one-way ticket, you could score a better deal then.

Search for affordable Alaska Airlines flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) one to three months prior to your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

Jet off on one of Alaska Airlines’s 49 weekly direct flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA). To view available options, enter your dates, origin and destination and hit search. Next, apply the “Nonstop” and “Airline” filters.

It takes around 2h 48m to fly nonstop from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) with Alaska Airlines.

If you’re looking for flexibility, Wednesday offers the most choice for Alaska Airlines flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA). Take your pick of 8 different departures.

The first flight from LAS to SEA with Alaska Airlines leaves at 6:00AM UTC-8. You’ll land at 8:45AM UTC-8. The last Alaska Airlines flight of the day takes off at 7:10PM UTC-8 and arrives at 9:56PM UTC-8. With around 20% fewer cancellations for morning departures, setting off early is typically the wisest option.**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 Harry Reid Intl. Airport (LAS) to Seattle touch down at Seattle - Tacoma Intl. Airport (SEA) and Snohomish County - Paine Field Airport (PAE). The main Seattle hub served by this airline is SEA. It’s always worth considering flights arriving at nearby airports on Expedia as there may be cheaper prices.

Alaska Airlines makes traveling from LAS to SEA more comfortable with an excellent in-flight experience and top-tier customer service. You even have the chance to collect points with Mileage Plan. Remember to join Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Alaska Airlines usually flies Boeing 737-900 planes for flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA). This airline also operates the Boeing 737-800 on this route. Remember that aircraft type can vary depending on operational reasons, so the plane you board could be different when you leave.

You can usually modify or cancel your flight, although there may be additional charges if you booked over 24 hours ago. Need to keep your options open? Make use of our “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you have to adjust your plans. To modify your booking, head to “Trips,” select your flight and click on “Manage Booking” for more details.