Route Overview: Las Vegas to Seattle
Traveling from the neon lights of the Mojave Desert to the lush, evergreen landscapes of the Pacific Northwest is one of the most popular West Coast corridors. Whether you are flying for business in the tech sector or a weekend getaway to the Pike Place Market, cheap flights from Las Vegas to Seattle offer a quick transition between these two iconic American cities. On average, travelers can find a live one-way Economy fare for 2026-10-29 at approximately $154 on UA (United Airlines) for a 1-stop journey taking about 4h 22m. However, prices change daily based on demand and availability. For the most current rates and personalized assistance, you can always call 1-800-518-9067 to speak with a booking expert.
Flight duration and schedule
The LAS to SEA nonstop flight typically takes between 2 hours and 35 minutes to 2 hours and 55 minutes. Flights departing from Harry Reid International Airport (LAS) begin as early as 6:00 AM, with late-night options often referred to as red-eyes departing after 10:00 PM. Because of the high volume of traffic, there are often more than 15 direct flights daily, supplemented by dozens of connecting options through hubs like San Francisco, Salt Lake City, or Denver.
Nonstop vs one-stop options
Direct flights are the gold standard for this route, saving travelers significant time. Major carriers like Alaska Airlines, Southwest Airlines, and Delta Air Lines dominate the nonstop market. One-stop options, while sometimes cheaper during peak holidays, usually add 2 to 4 hours to your total travel time. Common connection points include SFO, OAK, or SLC. If you are looking for the absolute lowest price, a one-stop flight on United or American might save you a few dollars, but most travelers prefer the efficiency of the direct route.
Distance and typical aircraft
The flight covers a Great Circle distance of approximately 867 miles. Because it is a medium-haul domestic route, airlines primarily utilize narrow-body aircraft. You will most frequently board a Boeing 737 (favored by Alaska and Southwest) or an Airbus A320 family jet (common with Delta and Spirit). These aircraft are well-suited for the mountain turbulence sometimes encountered over the Sierras and Cascades.
Airlines, Alliances and Aircraft on the LAS-SEA Route
Alaska Airlines: The Pacific Northwest Specialist
As the primary carrier at Seattle-Tacoma International Airport, Alaska Airlines offers the highest frequency of flights. They are part of the Oneworld alliance, meaning frequent flyers can earn and redeem miles across a global network. Their fleet on this route is almost exclusively Boeing 737-800 or 737-MAX 9 aircraft, featuring high-speed satellite Wi-Fi and power outlets at every seat.
Delta Air Lines: The Global Competitor
Delta maintains a significant hub in Seattle and provides robust service from Las Vegas. As a SkyTeam member, Delta offers a premium experience even on short hops. Travelers often find Delta to be the most reliable in terms of on-time performance for the LAS to SEA route. They typically operate Airbus A321 or Boeing 737-900ER aircraft on this leg.
Southwest Airlines: The Flexibility Leader
For those carrying heavy bags, Southwest Airlines is a favorite because they allow two free checked bags. They operate out of Terminal 1 at LAS and offer multiple daily nonstops. Note that Southwest does not use traditional seat assignments, so checking in exactly 24 hours early is crucial to securing a good spot in the boarding line.
Ultra-Low-Cost Carriers: Spirit and Frontier
For budget-conscious travelers, Spirit Airlines often provides the lowest base fares. However, be mindful that they charge for both carry-on and checked bags. These flights are ideal for travelers with just a small personal item who want to maximize their savings on all Faresterminal route guides.
Cabin classes and seat tips
Most aircraft on this route offer at least two classes: Economy and First Class. Delta and Alaska also offer a 'Premium' economy section with extra legroom and complimentary alcoholic beverages. If you are flying on a Boeing 737, try to avoid the very last row, as the seats often do not recline and are located near the lavatories. For the best views of Mt. Rainier upon arrival in Seattle, try to snag a window seat on the right side of the plane (Seat K).
Departure Airport Guide: LAS
Terminals and check-in
Harry Reid International Airport (LAS) is unique because it is located just minutes from the Las Vegas Strip. The airport has two main terminal buildings: Terminal 1 and Terminal 3. They are not physically connected, so knowing your terminal is vital. Southwest, Spirit, and American are generally in Terminal 1, while Alaska, Delta, and United are in Terminal 3. Check-in counters are usually busy, so arriving 2 hours before your LAS to SEA flight is recommended.
Getting to the airport
The airport is roughly 2 to 5 miles from most major resorts. Most travelers use rideshare services like Uber or Lyft, which have dedicated pickup zones. The RTC bus system also runs the 'Westcliff Airport Express' and 'Route 108' which provide affordable transport from downtown and the Strip.
Parking and rideshare pickup
If you are driving, LAS offers Long Term and Economy parking. Terminal 1 parking is accessed via Paradise Road, while Terminal 3 has its own dedicated garage. For rideshare pickups at Terminal 1, head to Level 2 of the parking garage. At Terminal 3, pickups are located on the Valet level of the parking garage.
Arrival Airport Guide: SEA
Terminals and baggage claim
Seattle-Tacoma International Airport (SEA), often called Sea-Tac, is a large, modern facility. Most flights from Vegas will arrive at either the North Satellite (N Gates) or the Concourse B/C areas. After deplaning, you may need to take the STS (Satellite Transit System) automated train to reach the main terminal for baggage claim. Baggage claim is located on the lower level of the main terminal building.
Ground transportation into the city
The most efficient way to reach downtown Seattle is the Link Light Rail. The station is connected to the fourth floor of the parking garage. Trains run every 8 to 15 minutes and will get you to Westlake Center in about 40 minutes. Taxis and rideshares are available on the third floor of the parking garage. Expect a 25 to 50-minute drive to downtown depending on the notorious Seattle traffic.
Cheapest Time to Fly and Fare Trends
Best days and months to book
Data suggests that booking your flight at least 21 to 30 days in advance yields the best prices. Tuesdays and Wednesdays are typically the cheapest days to fly from Las Vegas to Seattle. Avoid Sunday afternoons, as that is when many leisure travelers are returning home, causing prices to spike.
Typical fare ranges by season
| Season | Typical one-way fare | Notes |
|---|---|---|
| Spring (March-May) | $79 - $160 | Mild weather, great for cherry blossoms. |
| Summer (June-August) | $140 - $280 | Peak tourist season, highest prices. |
| Fall (Sept-Nov) | $85 - $175 | Good balance of weather and price. |
| Winter (Dec-Feb) | $65 - $130 | Lowest fares, expect rain and grey skies. |
How to lock in the lowest fare on Faresterminal
To ensure you get the best deal, use the Faresterminal search engine to compare multiple airlines side-by-side. If you see a fare like the $154 on UA for late October, it is often wise to book immediately. If you have questions about specific fare rules or need to book for a large group, call 1-800-518-9067 for expert assistance and unpublished deals.
Baggage Information and Fees
Baggage policies vary significantly between carriers. Always check your specific fare class, as 'Basic Economy' often excludes full-sized carry-ons.
| Airline | Carry-on | First checked bag | Second checked bag |
|---|---|---|---|
| Alaska Airlines | Free | $35 | $45 |
| Southwest | Free | Free | Free |
| Delta Air Lines | Free | $35 | $45 |
| Spirit Airlines | $45-$70 | $40-$65 | $60+ |
How to avoid baggage fees
The easiest way to avoid fees is to fly Southwest or hold a co-branded airline credit card. Most airline cards from Delta or Alaska waive the fee for the first checked bag for the cardholder and companions on the same reservation. Additionally, wearing your heaviest clothes and using a vacuum-sealed bag can help you fit everything into a standard carry-on.
Weather in Seattle Through the Seasons
Seattle weather is famous for its mist, but it is rarely extreme. The city is much cooler than Las Vegas, so always pack layers.
| Season | Typical weather | What to pack |
|---|---|---|
| Spring | 50-60 F, Frequent showers | Waterproof shell, light sweater. |
| Summer | 70-85 F, Sunny and dry | T-shirts, sunglasses, light jacket for evenings. |
| Fall | 45-65 F, Crisp and breezy | Flannel shirts, boots, raincoat. |
| Winter | 35-45 F, Overcast and rainy | Heavy coat, scarf, waterproof shoes. |
Best months to visit
July and August are statistically the driest months and offer the most beautiful outdoor conditions. However, September is a local favorite, offering warm days, fewer crowds, and lower flight prices than the mid-summer peak.
Where to Stay in Seattle
Downtown and Belltown
This is the heart of the city, within walking distance of Pike Place Market and the Seattle Art Museum. It is ideal for first-time visitors who want to be in the center of the action. You will find high-end hotels like the Fairmont Olympic and trendy boutiques.
Capitol Hill
If you prefer a vibrant nightlife and a younger crowd, Capitol Hill is the place to be. It is the center of Seattle's arts and LGBTQ+ culture, filled with coffee shops, record stores, and some of the best restaurants in the city.
Queen Anne
Home to the Space Needle and the Museum of Pop Culture (MoPOP), this neighborhood offers stunning views of the skyline. Upper Queen Anne is quieter and more residential, featuring beautiful historic homes and cozy cafes.
Events and Reasons to Visit Seattle
Seattle is a cultural powerhouse. Major events include Northwest Folklife in May, Bumbershoot (the international music and arts festival) in September, and the Seattle International Film Festival. Sports fans flock to the city to see the Seahawks (NFL), Mariners (MLB), or the Kraken (NHL). Beyond events, the proximity to Mount Rainier National Park and the Olympic Peninsula makes it a prime destination for hikers and nature lovers.
Travel Tips for Las Vegas to Seattle Flyers
- Download the FlySEA app for real-time security wait times at Sea-Tac.
- If flying Alaska Airlines, use their 20-minute baggage guarantee.
- Clear and TSA PreCheck are available at both LAS and SEA to speed up transit.
- Pack a reusable water bottle; Seattle has excellent tap water and filling stations.
- Avoid bringing an umbrella; locals prefer high-quality rain shells with hoods.
- Check the Link Light Rail schedule if arriving late at night.
- Book your cheap flights from Las Vegas to Seattle mid-week for the best savings.
- Keep your boarding pass handy for discounts at certain airport vendors.
Nearby and Related Routes
Travelers who enjoy the West Coast often look for other regional connections or major transcontinental routes. Popular searches include New York to Seattle Flights (JFK-SEA) and Denver to Seattle Flights (DEN-SEA). If you are planning a return trip to the desert, consider Atlanta to Las Vegas Flights (ATL-LAS). Other common routes include Chicago to Miami (ORD-MIA), Dallas to Las Vegas (DFW-LAS), and San Francisco to Seattle (SFO-SEA). Explore our Las Vegas to Seattle Flights page for more details.