$55 Cheap Flights from Las Vegas (LAS) to Seattle (SEA)

View $55 flight on Sat, Nov 1, 2025Opens in a new window

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

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Today's featured flight deals from Harry Reid Intl. Airport (LAS) to Seattle-Tacoma International Airport (SEA)

Nonstop
Carry-on included
Lower price than typical

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

Prices were available within the past 7 days and start at $55 for one-way flights and $116 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 24 - Mon, Oct 27
LAS
Las Vegas
SEA
Seattle
$116 Roundtrip, just found
$116
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 24 from Las Vegas to Seattle, returning Mon, Oct 27, priced at $116 just found
Frontier Airlines
Sat, Nov 1 - Sun, Nov 9
LAS
Las Vegas
SEA
Seattle
$117 Roundtrip, just found
$117
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Nov 1 from Las Vegas to Seattle, returning Sun, Nov 9, priced at $117 just found
Frontier Airlines
Sat, Nov 1 - Sun, Nov 9
LAS
Las Vegas
SEA
Seattle
$124 Roundtrip, just found
$124
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Nov 1 from Las Vegas to Seattle, returning Sun, Nov 9, priced at $124 just found
Southwest Airlines
Fri, Oct 24 - Mon, Oct 27
LAS
Las Vegas
SEA
Seattle
$124 Roundtrip, just found
$124
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Oct 24 from Las Vegas to Seattle, returning Mon, Oct 27, priced at $124 just found
Frontier Airlines
Fri, Oct 17 - Mon, Oct 20
LAS
Las Vegas
SEA
Seattle
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 17 from Las Vegas to Seattle, returning Mon, Oct 20, priced at $128 just found
Delta
Wed, Nov 5 - Wed, Nov 5
LAS
Las Vegas
SEA
Seattle
$132 Roundtrip, found 5 hours ago
$132
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Nov 5 from Las Vegas to Seattle, returning Wed, Nov 5, priced at $132 found 5 hours ago
Southwest Airlines
Fri, Oct 24 - Mon, Oct 27
LAS
Las Vegas
SEA
Seattle
$132 Roundtrip, just found
$132
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Oct 24 from Las Vegas to Seattle, returning Mon, Oct 27, priced at $132 just found
Alaska Airlines
Mon, Feb 9 - Mon, Feb 9
LAS
Las Vegas
SEA
Seattle
$133 Roundtrip, found 3 days ago
$133
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Feb 9 from Las Vegas to Seattle, returning Mon, Feb 9, priced at $133 found 3 days ago
Southwest Airlines
Fri, Oct 24 - Mon, Oct 27
LAS
Las Vegas
SEA
Seattle
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Oct 24 from Las Vegas to Seattle, returning Mon, Oct 27, priced at $134 just found
American Airlines
Fri, Oct 24 - Mon, Oct 27
LAS
Las Vegas
SEA
Seattle
$135 Roundtrip, just found
$135
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 24 from Las Vegas to Seattle, returning Mon, Oct 27, priced at $135 just found

Find the cheapest month to fly from Las Vegas (LAS) to Seattle (SEA)

October is typically the cheapest month to fly

From $40 - $149 per traveler.

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $55 or cheap return flight from $116 from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
October is the cheapest month to fly from LAS to SEA. Timing your trip outside of the busy season is often the key to scoring lower fares.
Which airlines fly direct from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
When taking off from Harry Reid Intl. Airport (LAS), 5 carriers can take you straight to Seattle - Tacoma Intl. Airport (SEA) without any stopovers, including:

  • Alaska Airlines
  • Delta Air Lines
  • Southwest Airlines
  • Spirit Airlines
  • Frontier Airlines

What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest airline to offer flights between Harry Reid Intl. Airport (LAS) and Seattle - Tacoma Intl. Airport (SEA) can vary based on when you want to travel. Frontier Airlines and Spirit Airlines are just some of your options offering well-priced fares. Use Expedia's search tool to compare airlines in one place and find the right LAS to SEA flight that fits your budget.
How many flights per day from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
When taking off from Harry Reid Intl. Airport (LAS), you can choose from an average of 15 daily nonstop flights to Seattle - Tacoma Intl. Airport (SEA).
What are the most popular departure times for flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
More travelers fly between LAS and SEA at 9 PM than at any other time. Rather go when it's quieter? Travel outside of rush hours and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from LAS to SEA?
If you jet off on a Monday, you'll get the biggest range of options for flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
Harry Reid Intl. Airport (LAS)'s first flight to Seattle - Tacoma Intl. Airport (SEA) is at approximately 6:00AM UTC-8. With a total flight time of 2h 53m, you'll arrive at around 8:53AM UTC-8.
How long does it take to fly from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
Flights from LAS to SEA have an average travel time of 2 hours and 49 minutes. The distance between the two is 870 mi.
What airline has the least delays from LAS to SEA?
United Airlines has the strongest track record for on-time direct flights from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA), with an on-time rating of 100%. Use the Expedia App to view your journey status before you leave and get real-time alerts about any trip changes.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) route, aim to travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Harry Reid Intl. Airport (LAS)?
Board a direct flight from Harry Reid Intl. Airport (LAS) to Seattle and touch down at Seattle - Tacoma Intl. Airport (SEA). Another point of entry into the city is Snohomish County - Paine Field Airport (PAE).
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your flight from LAS to SEA shortly before your journey is typically more expensive. However, if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a LAS to SEA flight and hotel package?
Opting for a LAS to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our impressive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA)?
Usually, it's possible to cancel or reschedule your LAS to SEA flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$116
Distance
866 mi
Average flight time
2 hours 44 mins

Book with confidence

Book with confidence

Las Vegas to Seattle Flights

The cheapest times to fly from Las Vegas to Seattle

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

 

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

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

 

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

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $55 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

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

 

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

 

*Terms apply.

 

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

 

Las Vegas to Seattle Flights

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