$29 Cheap Flights from Las Vegas (LAS) to Seattle (SEA)

Las Vegas (LAS) to Seattle (SEA) at a glance

Travel from Las Vegas (LAS) to Seattle (SEA) with a selection of airlines offering diverse options for your journey. Whether you prefer full-service or budget carriers, you can easily compare airfare and flight times to discover the itinerary that aligns with your budget and schedule. Prepare to explore Seattle's iconic attractions and vibrant neighborhoods as you organize your trip from Harry Reid International Airport to Seattle-Tacoma International Airport.

• Fastest flight duration: around 2h 45m non-stop
• Route distance: roughly 900 miles (1,450 km)
• Flights per week: around 100+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $45–$315, depending on seasonality and how far ahead you book

Flights from Harry Reid International Airport (LAS) to Seattle - Tacoma International Airport (SEA)

Recent traveler bookings reveal the top airlines flying from Las Vegas to Seattle, featuring both non-stop and one-stop flights. Popular layover options include Los Angeles International Airport (LAX), San Francisco International Airport (SFO), and Sacramento International Airport (SMF), each with an average layover of about 1 hour and 15 minutes. This allows you to customize your travel experience by balancing factors like price, total travel time, and cabin class to secure the ideal itinerary for your needs.

• Alaska Airlines: This full-service airline provides both non-stop and one-stop options, with one-way ticket prices generally falling between $50 and $335. It represents around 43% of departures on this route, with a standard non-stop flight duration of 2 hours and 45 minutes.
• Delta: Another full-service option, Delta offers non-stop flights with one-way fares typically ranging from $50 to $355. It accounts for roughly 33% of departures on this route, maintaining a total journey time of 2 hours and 45 minutes.
• Southwest Airlines: As a low-cost carrier, Southwest provides non-stop, one-stop, and multi-stop flights, with one-way fares usually between $50 and $345. It makes up about 14% of departures on this route, with a common non-stop travel time of 2 hours and 45 minutes.
• Frontier Airlines: This budget-friendly airline also offers non-stop and one-stop services, with one-way fares often ranging from $45 to $245. Frontier accounts for approximately 6% of departures on this route, featuring a typical non-stop flight duration of 2 hours and 45 minutes.
• United: A full-service airline, United provides both non-stop and one-stop services, with one-way fares generally between $75 and $310. It represents about 2% of departures on this route, with a one-stop flight taking approximately 4 hours in the air and a total travel time around 5 hours and 30 minutes.

Travelers flying from Las Vegas to Seattle have the option to upgrade their service. Top airlines include Delta, which offers first class and premium economy cabins; Alaska Airlines, with first class and business class options; and American Airlines, featuring first class service.

Best time to fly from Las Vegas (LAS) to Seattle (SEA)

The most popular months for travelers flying from Las Vegas to Seattle are February, March, and April, when peak temperatures in Seattle reach up to 48.6°F in April. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 67.5°F. For better deals, December usually offers the lowest average one-way fare around $135. Flight availability peaks in April, with approximately 116 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 91 flights per week.

• Cheapest time to fly: December usually offers good deals with average one-way fare around $135, roughly 11% cheaper than the yearly average.
• More budget-friendly months to fly: August, February, and July typically offer average one-way fares of around $144.
• Most flight options: April has the highest number of flights from Las Vegas to Seattle, with approximately 116 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Las Vegas (LAS) to Seattle (SEA)

• Las Vegas to Seattle (LAS-BFI): Located approximately 6 miles from Seattle - Tacoma International Airport (SEA), Boeing Field Airport (BFI) serves as a convenient alternative for travelers heading to Seattle.
• Henderson to Seattle (HSH-SEA): Henderson Executive Airport (HSH) lies about 7 miles from Harry Reid International Airport (LAS), offering a nearby option for those flying to Seattle.
• Laughlin to Seattle (IFP-SEA): Laughlin - Bullhead International Airport (IFP) is situated roughly 71 miles away from Harry Reid International Airport (LAS), making it another choice for flights to Seattle.

How to find the best prices for flights from Las Vegas (LAS) to Seattle (SEA)

Getting some of the best deals on flights from Las Vegas to Seattle is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually available when booking 2 to 8 weeks in advance, which aligns with when most travelers make their reservations. Departures in the morning, from 5 AM to 12 PM, tend to be cheaper and are the most popular flight times. Additionally, flying on Thursday generally offers lower prices, while Sunday remains the busiest travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Harry Reid International Airport

Seattle welcomes travelers from Las Vegas with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
• Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport and can be reached on foot, while Tukwila Station, a train station, is about 4.3 miles away and is best accessed by car.

Las Vegas to Seattle Flights

The cheapest times to fly from Las Vegas to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Vegas to Seattle are during the month of November. You can find some of the cheapest flights from Las Vegas to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Las Vegas to Seattle

Sunday is one of the best days to book for cheap flights from Las Vegas to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Las Vegas to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $29 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Vegas to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Vegas to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.