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 166 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Currently priced at $99, Southwest will fly you from Las Vegas to Seattle and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Frontier - these airlines can fly you to your destination from $101 and $108, respectively. Southwest is priced at 34% 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 ($60), Southwest ($62), and Alaska Airlines ($63).

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the cheapest flights from Las Vegas to Seattle?

Looking at all options, your cheapest flight can be booked for $70. While the most popular route (Las Vegas Harry Reid Intl - Seattle/Tacoma Intl) can be booked for $94 on average our data indicates $1,418 when flying from Las Vegas to Seattle.

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 Horizon Air (100%), KLM (94%) and Aeromexico (92%).

What are the most popular airlines that fly from Las Vegas to Seattle?

The most popular airlines flying from Las Vegas to Seattle are Alaska Airlines, Delta and Frontier. Something to consider prior to booking your flight.

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

Flights from Las Vegas to Seattle are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 43 days in advance, which can save you up to 135% on flights from Las Vegas to Seattle compared to booking the week you need them. Waiting 43 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $137. For sooner than that we have options available in the next 3 days from $235.

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

Flights from Las Vegas to Seattle lean towards being more expensive in June. Prices are generally better when you fly from Las Vegas to Seattle in October, with the cheapest ticket starting at $36.

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 53 flights from Harry Reid Intl to Seattle per day from 6 airlines.

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.

$60+ Flights from Las Vegas to Seattle

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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 October or September, booked 74 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Las Vegas to Seattle

Round-trip from	$99 (Southwest)
One-way from	$60 (Cheapflightsfares)
Popular in	June
Cheapest in	October
Average price	$177
Good round-trip deal	$171 or less
Good one-way deal	$127 or less

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. 17% potential increase in price ($31 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 July 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

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 July 11, 2025.

Sat 8/167:35 amLAS - SEA

Nonstop2h 40mSouthwest

Wed 8/201:40 pmSEA - LAS

Nonstop2h 40mSouthwest

Deal found 7/8

$99

Wed 8/61:40 pmLAS - SEA

Nonstop2h 45mSpirit Airlines

Sat 8/95:30 pmSEA - LAS

Nonstop2h 28mSpirit Airlines

Deal found 7/8

$101

Thu 8/711:14 amLAS - SEA

Nonstop2h 52mFrontier

Mon 8/113:11 pmSEA - LAS

Nonstop2h 45mFrontier

Deal found 7/10

$108

Tue 8/123:40 pmLAS - SEA

Nonstop2h 43mDelta

Sun 8/1712:00 pmSEA - LAS

Nonstop2h 45mDelta

Deal found 7/10

$134

Sat 8/305:46 pmLAS - SEA

Nonstop2h 49mHawaiian Airlines

Mon 9/15:47 pmSEA - LAS

Nonstop2h 39mHawaiian Airlines

Deal found 7/10

$135

Thu 7/319:19 pmLAS - SEA

Nonstop2h 47mAlaska Airlines

Mon 8/44:59 pmSEA - LAS

Nonstop2h 35mAlaska Airlines

Deal found 7/9

$152

Best flights from Las Vegas to Seattle
Discover carefully curated flight deals from Las Vegas to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2025.

Sat 8/167:35 amLAS - SEA

Nonstop2h 40mSouthwest

Wed 8/201:40 pmSEA - LAS

Nonstop2h 40mSouthwest

Deal found 7/8

$99

Wed 8/61:40 pmLAS - SEA

Nonstop2h 45mSpirit Airlines

Sat 8/95:30 pmSEA - LAS

Nonstop2h 28mSpirit Airlines

Deal found 7/8

$101

Thu 8/711:14 amLAS - SEA

Nonstop2h 52mFrontier

Mon 8/113:11 pmSEA - LAS

Nonstop2h 45mFrontier

Deal found 7/10

$108

Wed 8/277:04 pmLAS - SEA

Nonstop2h 45mHawaiian Airlines

Mon 9/16:52 pmSEA - LAS

Nonstop2h 38mHawaiian Airlines

Deal found 7/10

$131

Tue 8/123:40 pmLAS - SEA

Nonstop2h 43mDelta

Sat 8/1610:05 amSEA - LAS

Nonstop2h 44mDelta

Deal found 7/10

$134

Thu 7/319:19 pmLAS - SEA

Nonstop2h 47mAlaska Airlines

Mon 8/44:59 pmSEA - LAS

Nonstop2h 35mAlaska Airlines

Deal found 7/9

$152

Last-minute flights from Las Vegas to Seattle
Discover last-minute flight deals from Las Vegas to Seattle. Data last updated July 11, 2025 and is based on user searches.

Fri 7/1812:59 amLAS - SEA

1 stop22h 43mFrontier

Mon 7/213:11 pmSEA - LAS

Nonstop2h 45mFrontier

Deal found 7/10

$140

Fri 7/1812:59 amLAS - SEA

1 stop22h 43mMultiple Airlines

Sun 7/275:30 pmSEA - LAS

Nonstop2h 28mMultiple Airlines

Deal found 7/10

$160

Sat 7/191:40 pmLAS - SEA

Nonstop2h 45mSpirit Airlines

Wed 7/235:30 pmSEA - LAS

Nonstop2h 28mSpirit Airlines

Deal found 7/8

$176

Wed 8/61:40 pmLAS - SEA

Nonstop2h 45mSpirit Airlines

Sat 8/95:30 pmSEA - LAS

Nonstop2h 28mSpirit Airlines

Deal found 7/8

$101

Wed 8/61:40 pmLAS - SEA

Nonstop2h 45mMultiple Airlines

Thu 8/143:11 pmSEA - LAS

Nonstop2h 45mMultiple Airlines

Deal found 7/8

$115

Thu 8/711:14 amLAS - SEA

Nonstop2h 52mFrontier

Mon 8/113:11 pmSEA - LAS

Nonstop2h 45mFrontier

Deal found 7/10

$108

Thu 8/712:00 pmLAS - SEA

Nonstop2h 44mAlaska Airlines

Thu 8/75:59 pmSEA - LAS

Nonstop2h 39mAlaska Airlines

Deal found 7/8

$125

Fri 8/86:00 amLAS - SEA

Nonstop2h 35mDelta

Wed 8/137:45 pmSEA - LAS

Nonstop2h 39mDelta

Deal found 7/9

$148

Sat 8/236:50 pmLAS - SEA

Nonstop2h 40mSouthwest

Wed 8/274:10 pmSEA - LAS

Nonstop2h 35mSouthwest

Deal found 7/8

$99

One-way flights from Las Vegas to Seattle
Search for one-way flight options from Las Vegas to Seattle. Find affordable one-way fares based on user searches. Data last updated July 11, 2025.

Thu 8/2111:48 amLAS - SEA

Nonstop2h 52mFrontier

Deal found 7/8

$60

Wed 10/112:00 pmLAS - SEA

2 stops6h 40mSouthwest

Deal found 7/9

$62

Wed 8/136:00 amLAS - SEA

Nonstop2h 45mAlaska Airlines

Deal found 7/10

$63

Thu 8/71:40 pmLAS - SEA

Nonstop2h 45mSpirit Airlines

Deal found 7/9

$64

Thu 8/146:00 amLAS - SEA

Nonstop2h 36mDelta

Deal found 7/10

$66

Mon 8/189:15 amLAS - SEA

1 stop4h 46mAmerican Airlines

Deal found 7/9

$80

Sun 9/219:21 pmLAS - SEA

Nonstop2h 47mHawaiian Airlines

Deal found 7/10

$99

Mon 11/246:25 pmLAS - SEA

1 stop6h 34mUnited Airlines

Deal found 7/10

$101

Cheapflights Fare Finder

Use the filters below to find and compare flights from Las Vegas to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Sat 8/16

7:35 am-10:15 am

Nonstop2h 40m

Seattle/Tacoma Intl

Wed 8/20

1:40 pm-4:20 pm

Nonstop2h 40m

$99

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 8/6

1:40 pm-4:25 pm

Nonstop2h 45m

Seattle/Tacoma Intl

Mon 8/11

5:30 pm-7:58 pm

Nonstop2h 28m

$101

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 8/7

11:14 am-2:06 pm

Nonstop2h 52m

Seattle/Tacoma Intl

Mon 8/11

3:11 pm-5:56 pm

Nonstop2h 45m

$108

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 8/27

7:04 pm-9:49 pm

Nonstop2h 45m

Seattle/Tacoma Intl

Mon 9/1

6:52 pm-9:30 pm

Nonstop2h 38m

$131

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Tue 8/12

3:40 pm-6:23 pm

Nonstop2h 43m

Seattle/Tacoma Intl

Sun 8/17

12:00 pm-2:45 pm

Nonstop2h 45m

$134

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Sat 8/30

7:04 pm-9:49 pm

Nonstop2h 45m

Seattle/Tacoma Intl

Mon 9/1

6:52 pm-9:30 pm

Nonstop2h 38m

$135

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 8/21

11:48 am-2:40 pm

Nonstop2h 52m

$60

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Tue 9/9

12:00 pm-6:10 pm

2 stops6h 10m

$62

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Wed 8/13

6:00 am-8:45 am

Nonstop2h 45m

$63

Las VegasSeattle

LAS - SEA

LASSEA

Las Vegas Harry Reid Intl

Thu 8/7

1:40 pm-4:25 pm

Nonstop2h 45m

$64

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 14 results

The best insider tips for Las Vegas to Seattle flights

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.

SEA

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

Our travel experts

Daniel Scheffler

Expert on Spirit Airlines

Robert Schrader

Expert on Alaska Airlines

Marisa Garcia

Expert on Frontier

Brandon Schultz

Expert on SEA

Ramsey Qubein

Expert on LAS

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?

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?

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 45% versus a flight in the morning.

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

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.

Weekly flight availability from Las Vegas to Seattle

The most flights from LAS to SEA are scheduled on a Friday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

How much does it cost to fly round-trip from Las Vegas to Seattle?

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,250 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,951 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.8

Good

2,561 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,846 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

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 53 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 166 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines flying from Las Vegas to Seattle round-trip?
Currently priced at $99, Southwest will fly you from Las Vegas to Seattle and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Frontier - these airlines can fly you to your destination from $101 and $108, respectively. Southwest is priced at 34% 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 ($60), Southwest ($62), and Alaska Airlines ($63).
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 Horizon Air (100%), KLM (94%) and Aeromexico (92%).
What are the cheapest flights from Las Vegas to Seattle?
Looking at all options, your cheapest flight can be booked for $70. While the most popular route (Las Vegas Harry Reid Intl - Seattle/Tacoma Intl) can be booked for $94 on average our data indicates $1,418 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

SeaTac

Tukwila

Tacoma

Lakewood

Ocean Shores

Lacey

Leavenworth

Lynnwood

Renton

Olympia

Shoreline

Puyallup

Cle Elum

Centralia

Kent

Chehalis

Kirkland

Aberdeen

Federal Way

Shelton

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Las Vegas to Seattle

Las Vegas to Everett flights

Las Vegas to Portland flights

Reno to Seattle flights

Reno to Portland flights

Las Vegas to Spokane flights

Reno to Spokane flights

Las Vegas to Bellingham flights

Reno to Pasco flights

Las Vegas to Pasco flights

Reno to Bellingham flights

Twin Falls to Seattle flights

Las Vegas to Pullman flights

Las Vegas to Yakima flights

Reno to Wenatchee flights

Complete your trip

Seattle car rentals

Seattle/Tacoma Intl Airport car rentals

Kenmore Air Harbor Airport car rentals

Yakima car rentals

Spokane car rentals

Pasco car rentals

Bellingham car rentals

Walla Walla car rentals

Wenatchee car rentals

Downtown car rentals

Capitol Hill car rentals

West Seattle car rentals

Other flights to Seattle

Top 6 airlines flying from Las Vegas to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$38	Average$106	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$41	Average$110	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$97	Average$203	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$103	Average$202	FlexibilityNo cancel fee	On-time85%
Alaska Airlines	Cheapest$116	Average$209	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$118	Average$239	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$60+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Las Vegas to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheap flight deals from Las Vegas to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Las Vegas to Seattle

Cheapest flights from Las Vegas to SeattleExplore 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 July 11, 2025.

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 July 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Las Vegas to Seattle that are best for you.

The best insider tips for Las Vegas to Seattle flights

Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Seattle trip

Airlines

Spirit Airlines

Alaska Airlines

Frontier

Airports

LAS

SEA

Our travel experts

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.

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 June 27, 2025.

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

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 July 11, 2025.

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 July 6, 2025.

Weekly flight availability from Las Vegas to Seattle

Explore weekly flight availability from Las Vegas to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 11, 2025.

How much does it cost to fly round-trip from Las Vegas to Seattle?

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.

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?

How popular is this Las Vegas to Seattle flight route?

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

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

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

What are the cheapest flights from Las Vegas to Seattle?

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

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

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

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

Traveling to a place near Las Vegas?

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.

Alternative routes for Las Vegas to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Las Vegas to Seattle

100% Free

Book with Flexibility

Travel Smart

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 July 11, 2025.