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$71+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — SEA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl are usually found in October or November, booked 74 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap 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 August 21, 2025.

Round-trip from

$88
(Flightnetwork)

One-way from

$71
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$156

Good round-trip deal

$149 or less

Good one-way deal

$109 or less
From Las Vegas Harry Reid Intl to Seattle/Tacoma Intl
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One-way flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl.
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Find 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 August 21, 2025.

This Flightnetwork deal was found by Cheapflights users on 8/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:32 pmLAS - SEA
Nonstop2h 59mFrontier
Sun 9/141:22 pmSEA - LAS
Nonstop2h 42mFrontier
Deal found 8/20$88
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:32 pmLAS - SEA
Nonstop2h 59mFrontier
Mon 9/151:47 pmSEA - LAS
Nonstop2h 42mFrontier
Deal found 8/19$95
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:32 pmLAS - SEA
Nonstop2h 59mFrontier
Thu 9/254:36 pmSEA - LAS
Nonstop2h 39mFrontier
Deal found 8/21$96
This Priceline deal was found by Cheapflights users on 8/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1212:46 pmLAS - SEA
Nonstop2h 59mFrontier
Mon 9/154:36 pmSEA - LAS
1 stop4h 35mFrontier
Deal found 8/20$97
This Priceline deal was found by Cheapflights users on 8/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:18 pmLAS - SEA
Nonstop2h 58mFrontier
Sun 10/127:28 pmSEA - LAS
Nonstop2h 38mFrontier
Deal found 8/20$102
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:29 pmLAS - SEA
Nonstop3h 03mFrontier
Thu 11/137:17 pmSEA - LAS
Nonstop2h 38mFrontier
Deal found 8/19$105
This Orbitz deal was found by Cheapflights users on 8/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:32 pmLAS - SEA
Nonstop2h 59mMultiple Airlines
Tue 10/74:59 pmSEA - LAS
Nonstop2h 34mMultiple Airlines
Deal found 8/20$106
This Priceline deal was found by Cheapflights users on 8/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:18 pmLAS - SEA
Nonstop2h 58mFrontier
Sun 10/194:11 pmSEA - LAS
1 stop4h 36mFrontier
Deal found 8/21$111
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:14 pmLAS - SEA
1 stop20h 11mFrontier
Mon 9/221:47 pmSEA - LAS
Nonstop2h 42mFrontier
Deal found 8/20$112
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:18 pmLAS - SEA
Nonstop2h 58mFrontier
Mon 10/204:11 pmSEA - LAS
1 stop4h 36mFrontier
Deal found 8/21$113

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 August 21, 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 9/11

12:32 pm-3:31 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Sun 9/14

1:22 pm-4:04 pm

Nonstop2h 42m

$88

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 9/11

12:32 pm-3:31 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Mon 9/15

1:47 pm-4:29 pm

Nonstop2h 42m

$95

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Fri 9/12

12:46 pm-3:45 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Mon 9/15

4:36 pm-9:11 pm

1 stop4h 35m

$97

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Fri 9/19

12:46 pm-3:45 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Sun 9/21

4:36 pm-9:11 pm

1 stop4h 35m

$97

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 10/2

12:32 pm-3:31 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Tue 10/7

1:02 pm-6:55 pm

1 stop5h 53m

$99

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 10/23

12:18 pm-3:16 pm

Nonstop2h 58m

Seattle/Tacoma Intl

Thu 10/23

4:26 pm-7:01 pm

Nonstop2h 35m

$102

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Fri 10/10

12:18 pm-3:16 pm

Nonstop2h 58m

Seattle/Tacoma Intl

Sun 10/12

7:28 pm-10:06 pm

Nonstop2h 38m

$103

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Mon 11/10

3:29 pm-6:32 pm

Nonstop3h 03m

Seattle/Tacoma Intl

Thu 11/13

7:17 pm-9:55 pm

Nonstop2h 38m

$105

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 10/2

12:32 pm-3:31 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Tue 10/7

4:59 pm-7:33 pm

Nonstop2h 34m

$106

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 10/16

12:18 pm-3:16 pm

Nonstop2h 58m

Seattle/Tacoma Intl

Sun 10/19

4:11 pm-8:47 pm

1 stop4h 36m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 20 results
1
2

The best insider tips for Las Vegas to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Seattle trip
Airlines
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
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
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
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
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
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
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
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

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 August 8, 2025.

Booking 74 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, January is the cheapest month in which you can book a flight from Las Vegas to Seattle (average of $238). Flying from Las Vegas to Seattle in June is currently the most expensive (average of $388). 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 August 21, 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 in the afternoon, which can drop the price by up to 43% 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 August 17, 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.

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 August 21, 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
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,672 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Spirit Airlines
6.3
Okay
8,029 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,207 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 38m for a nonstop flight. There are 45 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 153 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 can get you from Las Vegas to Seattle in just under 2h 59m. 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 $39, 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 Delta - these airlines can fly you to your destination from $41 and $97, respectively. Frontier is priced at 75% lower than the current average price of a flight leaving 3 months from now.

  • 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 Scandinavian Airlines (94%), KLM (91%) and WestJet (90%).

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

    Looking at all options, your cheapest flight can be booked for $64. While the most popular route (Las Vegas Harry Reid Intl - Seattle/Tacoma Intl) can be booked for $97 on average our data indicates $815 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, January is the cheapest month in which you can book a flight from Las Vegas to Seattle (average of $238). Flying from Las Vegas to Seattle in June is currently the most expensive (average of $388). 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
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$122FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$41Average$113FlexibilityNo cancel feeOn-time65%
DeltaCheapest$97Average$200FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$102Average$196FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$117Average$207FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$118Average$225FlexibilityNo cancel feeOn-time63%

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