LAS to SEA: Flights from Las Vegas to Seattle Guide
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Last updated Feb 16, 2026
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Tracking the Mar 5, 2026 departure — the cheapest date we found.
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Search FlightsEmbarking on a journey from the vibrant, high-energy atmosphere of Las Vegas to the lush, evergreen landscapes of Seattle offers a stark yet exhilarating contrast for any traveler. This popular route connects the desert oasis of Harry Reid International Airport (LAS) with the tech-driven hub of Seattle-Tacoma International Airport (SEA), bridging the gap between world-class entertainment and the stunning natural beauty of the Pacific Northwest. Whether you are escaping the Mojave heat for a refreshing weekend in the Sound or traveling for business between these two major Western hubs, the flight time is a manageable two and a half hours, making it an ideal short-haul getaway for those seeking a change of scenery. The frequency of flights ensures that passengers can find a schedule that fits their needs perfectly, whether they prefer early morning departures or late-night red-eyes.
Travel Tips
First, since Seattle is famous for its unpredictable weather and frequent drizzle, always pack a lightweight, waterproof jacket regardless of the season, even if it is triple digits when you depart from Las Vegas. Second, to maximize your arrival experience, try to book a window seat on the right side of the plane when flying north; if the skies are clear, the descent into Sea-Tac provides a breathtaking view of Mount Rainier and the Olympic Mountains. Third, consider downloading the Link Light Rail app before you land; taking the train from the airport to downtown Seattle is often faster and much cheaper than a rideshare during peak traffic hours. Finally, if you are traveling with pets, be aware that Seattle is extremely pet-friendly, but ensure your airline documentation is ready as LAS to SEA is a popular route for travelers bringing their furry companions along.
Airport Information
Las Vegas (LAS)
Harry Reid International Airport (LAS), located just south of the famous Las Vegas Strip, is one of the busiest and most unique airports in the United States. It features two main terminals and is well-known for its vibrant atmosphere, complete with thousands of slot machines throughout the terminals. Travelers can enjoy a wide array of dining options, from high-end sit-down restaurants to quick local favorites, ensuring a comfortable pre-flight experience.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, serves as the primary international gateway for the Pacific Northwest. Located about 14 miles south of downtown Seattle, the airport is a major hub for Alaska Airlines and Delta Air Lines. It offers premium amenities, including an impressive permanent art collection, live music performances in the terminals, and diverse food options that highlight local ingredients like Pacific salmon and artisanal coffee.
Seasonal Pricing Patterns
Flight prices between Las Vegas and Seattle tend to fluctuate significantly based on the season. Generally, the cheapest months to fly are January and February, when the Pacific Northwest weather is at its dampest and tourist demand is at a seasonal low. Conversely, prices peak during the summer months of July and August, as well as during major holidays. To find the best deals, it is recommended to book at least three to four weeks in advance, especially if you plan to travel during the popular summer festival season in Seattle.
Frequently Asked Questions
How long is the average flight from LAS to SEA?
The average non-stop flight duration from Harry Reid International Airport to Seattle-Tacoma International Airport is approximately 2 hours and 40 minutes.
Which airlines offer direct flights between Las Vegas and Seattle?
Several major carriers offer non-stop service, including Alaska Airlines, Delta Air Lines, Southwest Airlines, and Spirit Airlines.
Is there a time difference between Las Vegas and Seattle?
No, both Las Vegas and Seattle are located in the Pacific Time Zone, so there is no time change when traveling between these two cities.
What is the cheapest day of the week to fly to Seattle?
Typically, mid-week flights on Tuesdays and Wednesdays offer the lowest fares, while Friday and Sunday departures tend to be the most expensive due to weekend demand.
How far is the airport from downtown Seattle?
Sea-Tac Airport is approximately 14 miles south of downtown Seattle, which takes about 20-40 minutes by car depending on traffic, or 40 minutes via the Link light rail.