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

View AU$167 flight on Wed, 23 Sept 2026Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Seattle-Tacoma International Airport (SEA)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 23 Sept - Wed, 30 Sept
LAS
Las Vegas
SEA
Seattle
AU$337 Return, found 2 days ago
AU$337
Return
found 2 days ago
Select Alaska Airlines flight, departing Wed, 23 Sept from Las Vegas to Seattle, returning Wed, 30 Sept, priced at AU$337 found 2 days ago
Delta
Fri, 9 Oct - Sat, 10 Oct
LAS
Las Vegas
SEA
Seattle
AU$348 Return, found 9 hours ago
AU$348
Return
found 9 hours ago
Select Delta flight, departing Fri, 9 Oct from Las Vegas to Seattle, returning Sat, 10 Oct, priced at AU$348 found 9 hours ago
Alaska Airlines
Tue, 15 Sept - Tue, 22 Sept
LAS
Las Vegas
SEA
Seattle
AU$364 Return, found 1 day ago
AU$364
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 15 Sept from Las Vegas to Seattle, returning Tue, 22 Sept, priced at AU$364 found 1 day ago
American Airlines
Wed, 23 Sept - Wed, 30 Sept
LAS
Las Vegas
SEA
Seattle
AU$393 Return, found 2 days ago
AU$393
Return
found 2 days ago
Select American Airlines flight, departing Wed, 23 Sept from Las Vegas to Seattle, returning Wed, 30 Sept, priced at AU$393 found 2 days ago
Delta
Wed, 23 Sept - Wed, 30 Sept
LAS
Las Vegas
SEA
Seattle
AU$401 Return, found 2 days ago
AU$401
Return
found 2 days ago
Select Delta flight, departing Wed, 23 Sept from Las Vegas to Seattle, returning Wed, 30 Sept, priced at AU$401 found 2 days ago
Delta
Wed, 23 Sept - Wed, 30 Sept
LAS
Las Vegas
SEA
Seattle
AU$408 Return, found 2 days ago
AU$408
Return
found 2 days ago
Select Delta flight, departing Wed, 23 Sept from Las Vegas to Seattle, returning Wed, 30 Sept, priced at AU$408 found 2 days ago
Delta
Fri, 9 Oct - Sat, 10 Oct
LAS
Las Vegas
SEA
Seattle
AU$412 Return, found 9 hours ago
AU$412
Return
found 9 hours ago
Select Delta flight, departing Fri, 9 Oct from Las Vegas to Seattle, returning Sat, 10 Oct, priced at AU$412 found 9 hours ago
Alaska Airlines
Tue, 15 Sept - Tue, 22 Sept
LAS
Las Vegas
SEA
Seattle
AU$413 Return, found 1 day ago
AU$413
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 15 Sept from Las Vegas to Seattle, returning Tue, 22 Sept, priced at AU$413 found 1 day ago
Delta
Wed, 23 Sept - Wed, 30 Sept
LAS
Las Vegas
SEA
Seattle
AU$415 Return, found 2 days ago
AU$415
Return
found 2 days ago
Select Delta flight, departing Wed, 23 Sept from Las Vegas to Seattle, returning Wed, 30 Sept, priced at AU$415 found 2 days ago
United
Fri, 9 Oct - Sat, 10 Oct
LAS
Las Vegas
SEA
Seattle
AU$475 Return, found 9 hours ago
AU$475
Return
found 9 hours ago
Select United flight, departing Fri, 9 Oct from Las Vegas to Seattle, returning Sat, 10 Oct, priced at AU$475 found 9 hours ago

Frequently asked questions

How much does a flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from AU$167 and cheap return flights from AU$337 LAS to SEA with Expedia. One-way flights typically cost between AU$169 and AU$1,404 and return flights often range between AU$304 and AU$1,852. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LAS to SEA ticket fares go up or down.
What is the cheapest month to fly from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from LAS to SEA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are 5 airlines offering direct flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Here are some of the top carriers:
  • Delta operates 40 direct flights from LAS to SEA every week.
  • Southwest Airlines operates 23 direct flights from LAS to SEA every week.
  • Condor operates 16 direct flights from LAS to SEA every week.
  • Finnair operates 14 direct flights from LAS to SEA every week.
  • Frontier Airlines operates 8 direct flights from LAS to SEA every week.
What is the cheapest airline that flies from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Alaska Airlines offers one of the cheapest connecting return flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with prices starting from around AU$191. Delta is one of the cheapest airlines offering nonstop return flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with prices starting from around AU$336 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from LAS to SEA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll find approximately 10 nonstop flights per day from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). For even more choices, look at flights that include layovers, as there are around 185 connecting flights per day. Some common connection points include San Diego Intl. (SAN), Los Angeles Intl. (LAX), and San Francisco Intl. (SFO).
What is the earliest flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:05 AM local time, operated by Delta. This is a seasonal service active in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll generally find the most flights from Harry Reid International Airport (LAS) to Seattle - Tacoma International Airport (SEA) on a Friday, with around 132 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, Alaska Airlines, and United. Flight options are notably more plentiful on Fridays compared to other days of the week, offering you a good selection for your journey.
What are the most popular departure times for flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. Many major carriers, including Alaska Airlines, Frontier Airlines and Delta, offer flights during this window. Many travellers prefer this time because it allows for an early start to their day in Seattle.
How long does it take to fly from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A non-stop flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically takes around 2 hours 49 minutes. This route covers a distance of about 1,394 kilometers. If you opt for a one-stop flight, your travel time will be longer, usually around 8 hours. Flights with two or more stops generally take about 10 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class or first class between LAS and SEA. Airlines that offer business class service on this route include:
  • Alaska Airlines
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • Alaska Airlines
  • Delta
  • Hawaiian Airlines
  • United
  • American Airlines
How do I earn miles on a Las Vegas, NV (LAS) to Seattle, WA (SEA) flight with Expedia?
It's easy to earn miles on a Las Vegas, NV (LAS) to Seattle, WA (SEA) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Las Vegas, NV (LAS)?
If you're planning to travel to Seattle from Harry Reid International Airport (LAS), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Diego Intl. (SAN), or John Wayne (SNA) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Las Vegas, NV (LAS) to Seattle, WA (SEA) at the last minute?
Typically, booking a last minute flight from Las Vegas, NV (LAS) to Seattle, WA (SEA) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Las Vegas, NV (LAS) to Seattle, WA (SEA) flight and hotel package?
Securing a Las Vegas, NV (LAS) to Seattle, WA (SEA) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Las Vegas, NV (LAS-Harry Reid Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
AU$336
Distance
1385 km
Average flight time
2 hours 41 mins

Book with confidence

Your quick guide to flights from Las Vegas to Seattle

Pick up great flights from Las Vegas to Seattle

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Las Vegas to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Las Vegas to Seattle that take around hours.

Find cheap flights from Las Vegas to Seattle

From the great flight deals with prices currently ranging from AU$337 to AU$475, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Las Vegas to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in September.

Reasons to book your flight from Las Vegas to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Las Vegas to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Las Vegas to Seattle

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