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$40+ Cheap flights from Las Vegas to Seattle (LAS - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — SEA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Las Vegas to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl are usually found in January or February, booked 89 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Las Vegas to Seattle

Cheapest flights from Las Vegas to Seattle
Explore the most affordable flight options available from Las Vegas to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Frontier deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:56 amLAS - SEA
1 stop4h 58mFrontier
Thu 1/87:23 pmSEA - LAS
Nonstop2h 37mFrontier
Deal found 12/17$160
This Frontier deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:56 amLAS - SEA
1 stop4h 58mFrontier
Tue 1/67:13 pmSEA - LAS
Nonstop2h 37mFrontier
Deal found 12/17$161
This CheapOair deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:00 pmLAS - SEA
1 stop18h 54mFrontier
Thu 1/89:23 pmSEA - LAS
Nonstop2h 36mFrontier
Deal found 12/16$162
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:15 amLAS - SEA
Nonstop2h 56mFrontier
Thu 1/89:23 pmSEA - LAS
Nonstop2h 36mFrontier
Deal found 12/15$176
This Frontier deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:15 amLAS - SEA
Nonstop2h 56mFrontier
Mon 1/129:02 pmSEA - LAS
Nonstop2h 38mFrontier
Deal found 12/16$177
This Frontier deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:55 amLAS - SEA
Nonstop2h 56mFrontier
Tue 1/67:13 pmSEA - LAS
Nonstop2h 37mFrontier
Deal found 12/18$178
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:47 pmLAS - SEA
1 stop8h 55mMultiple Airlines
Fri 1/21:25 pmSEA - LAS
1 stop9h 29mMultiple Airlines
Deal found 12/16$182
This Frontier deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:30 amLAS - SEA
1 stop12h 23mFrontier
Fri 1/99:02 pmSEA - LAS
Nonstop2h 38mFrontier
Deal found 12/17$189
This Frontier deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:30 amLAS - SEA
1 stop12h 23mFrontier
Tue 1/67:13 pmSEA - LAS
Nonstop2h 37mFrontier
Deal found 12/17$190
This CheapOair deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 pmLAS - SEA
1 stop18h 54mFrontier
Mon 1/56:33 pmSEA - LAS
Nonstop2h 35mFrontier
Deal found 12/16$196
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:56 amLAS - SEA
1 stop4h 58mMultiple Airlines
Wed 1/710:53 amSEA - LAS
Nonstop2h 31mMultiple Airlines
Deal found 12/17$199
This WAYA deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:11 pmLAS - SEA
1 stop5h 31mFrontier
Fri 1/26:33 pmSEA - LAS
Nonstop2h 35mFrontier
Deal found 12/16$205

Find flight deals from Las Vegas to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$55
(Kiwi.com)

One-way from

$40
(Priceline)

Popular in

December

Cheapest in

January

Average price

$206

Good round-trip deal

$119 or less

Good one-way deal

$84 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Seattle/Tacoma Intl flights.
Search Deals
From Las Vegas Harry Reid Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Las Vegas to Seattle that are best for you.

Fly from

Las Vegas

Fly to

Seattle

Route

Depart

Return

Price

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 1/8

6:15 am-9:04 am

Nonstop2h 49m

Seattle/Tacoma Intl

Sun 1/11

9:23 pm-11:59 pm

Nonstop2h 36m

$55

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 2/26

4:33 pm-7:25 pm

Nonstop2h 52m

Seattle/Tacoma Intl

Sun 3/1

9:23 pm-11:57 pm

Nonstop2h 34m

$56

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 2/11

12:05 pm-2:57 pm

Nonstop2h 52m

Seattle/Tacoma Intl

Sun 2/15

9:23 pm-11:57 pm

Nonstop2h 34m

$78

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 2/12

11:05 am-1:59 pm

Nonstop2h 54m

Seattle/Tacoma Intl

Mon 2/16

7:20 am-9:56 am

Nonstop2h 36m

$97

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Fri 1/9

4:51 pm-7:47 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Sun 1/11

10:19 am-4:43 pm

1 stop6h 24m

$99

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 1/15

7:50 am-1:30 pm

1 stop5h 40m

Seattle/Tacoma Intl

Mon 1/19

6:20 am-8:50 am

Nonstop2h 30m

$107

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Tue 1/13

11:00 am-1:54 pm

Nonstop2h 54m

Seattle/Tacoma Intl

Tue 2/3

12:25 pm-3:00 pm

Nonstop2h 35m

$107

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 1/14

5:40 pm-8:32 pm

Nonstop2h 52m

Seattle/Tacoma Intl

Wed 1/21

7:20 am-9:55 am

Nonstop2h 35m

$107

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 1/7

10:07 am-1:01 pm

Nonstop2h 54m

Seattle/Tacoma Intl

Wed 1/7

4:43 pm-7:13 pm

Nonstop2h 30m

$111

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Fri 2/27

5:05 pm-11:25 pm

2 stops6h 20m

Seattle/Tacoma Intl

Sun 3/1

6:30 am-9:00 am

Nonstop2h 30m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 22 results
1
2
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Compare providers for flights from Las Vegas to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Seattle flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Las Vegas-Seattle flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Las Vegas-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Seattle flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Las Vegas to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Las Vegas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to Seattle

How far ahead should I book a flight from Las Vegas to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to Seattle. Price data was last updated on December 12, 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Las Vegas to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Las Vegas to Seattle?

Currently, March is the cheapest month in which you can book a flight from Las Vegas to Seattle (average of $38). Flying from Las Vegas to Seattle in July is currently the most expensive (average of $79). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LAS to SEA?

Find hourly flight availability from Las Vegas to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Las Vegas to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the evening.

What is the cheapest day to fly from Las Vegas to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Seattle. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their Las Vegas to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Las Vegas to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Seattle trip
Airlines
Frontier

Frontier's UpFront Plus guarantees an empty middle seat, offering more comfort.


Frontier's Zone 1 boarding is available with carry-on purchase, ensuring quicker boarding.

Read more about FrontierBy Marisa Garcia
Alaska Airlines

Alaska's Wi-Fi offers a flat fee, ideal for business travelers needing to work onboard.


Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on flights.

Read more about Alaska AirlinesBy Robert Schrader
Spirit Airlines

Spirit's Big Front Seats offer wider seats and extra legroom, ideal for comfort.


Spirit's Wi-Fi plans are available for browsing and streaming, enhancing in-flight entertainment.

Read more about Spirit AirlinesBy Daniel Scheffler
Airports
LAS

LAS offers a self-service TSA screening trial, simplifying security with video instructions. Ideal for frequent travelers familiar with the process.

Read more about LASBy Ramsey Qubein
SEA

Take the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEABy Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Las Vegas to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,477 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,005 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Spirit Airlines
6.3
Okay
8,190 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Frontier
5.8
Fair
3,081 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Las Vegas to Seattle?

    If you book a flight from Las Vegas to Seattle, you will be flying from Harry Reid Intl to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Las Vegas Harry Reid Intl (LAS) take 2h 43m for a nonstop flight. There are 18 flights from Harry Reid Intl to Seattle per day from 6 airlines.

  • How popular is this Las Vegas to Seattle flight route?

    This flight path from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl was viewed by 145 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Las Vegas to Seattle?

    Frontier and Delta can get you from Las Vegas to Seattle in just under 2h 49m. Your travel time will be generally consistent. Las Vegas and Seattle are separated by a distance of 866 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Las Vegas to Seattle round-trip?

    Currently priced at $45, Frontier will fly you from Las Vegas to Seattle and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Hawaiian Airlines - these airlines can fly you to your destination from $54 and $79, respectively. Frontier is priced at 72% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Las Vegas to Seattle one-way?

    The cheapest airlines for a one-way flight from Las Vegas to Seattle are Frontier ($29), Spirit Airlines ($33), and Alaska Airlines ($58).

  • What are the most reliable airlines from Las Vegas to Seattle?

    The top 3 most reliable airlines when flying from Las Vegas to Seattle are Air France (96%), Aeromexico (95%) and KLM (93%).

  • What are the cheapest flights from Las Vegas to Seattle?

    Looking at all options, your cheapest flight can be booked for $30. While the most popular route (Las Vegas Harry Reid Intl - Seattle/Tacoma Intl) can be booked for $74 on average, our data indicates $841 when flying from Las Vegas to Seattle.

  • Can I find deals for flights from Las Vegas to Seattle that include hotel bookings?

    Yes. In addition to deals on Las Vegas to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Seattle.

  • Can I find deals for business class flights from Las Vegas to Seattle?

    Yes. Cheapflights offers flight deals from Las Vegas to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Las Vegas to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Las Vegas to Seattle (average of $38). Flying from Las Vegas to Seattle in July is currently the most expensive (average of $79). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Las Vegas to Seattle

Discover the top 6 airlines that operate flights from Las Vegas to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$51Average$135FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$58Average$116FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$103Average$194FlexibilityNo cancel feeOn-time85%
DeltaCheapest$106Average$204FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$117Average$217FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$119Average$206FlexibilityNo cancel feeOn-time75%

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