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

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

Nonstop
Carry-on included
Lower price than typical

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

Prices were available within the past 7 days and start at $29 for one-way flights and $54 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Jan 11 - Thu, Jan 15
SEA
Seattle
LAS
Las Vegas
$54 Roundtrip, just found
$54
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Jan 11 from Seattle to Las Vegas, returning Thu, Jan 15, priced at $54 just found
Frontier Airlines
Sat, Nov 15 - Fri, Nov 21
SEA
Seattle
LAS
Las Vegas
$58 Roundtrip, found 3 hours ago
$58
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Nov 15 from Seattle to Las Vegas, returning Fri, Nov 21, priced at $58 found 3 hours ago
Frontier Airlines
Mon, Nov 24 - Fri, Dec 5
SEA
Seattle
LAS
Las Vegas
$66 Roundtrip, found 1 hour ago
$66
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Nov 24 from Seattle to Las Vegas, returning Fri, Dec 5, priced at $66 found 1 hour ago
Frontier Airlines
Sun, Mar 1 - Fri, Mar 6
SEA
Seattle
LAS
Las Vegas
$72 Roundtrip, found 17 hours ago
$72
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Sun, Mar 1 from Seattle to Las Vegas, returning Fri, Mar 6, priced at $72 found 17 hours ago
Frontier Airlines
Mon, Jan 5 - Tue, Jan 6
SEA
Seattle
LAS
Las Vegas
$74 Roundtrip, found 1 hour ago
$74
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Jan 5 from Seattle to Las Vegas, returning Tue, Jan 6, priced at $74 found 1 hour ago
Frontier Airlines
Mon, Nov 24 - Wed, Nov 26
SEA
Seattle
LAS
Las Vegas
$76 Roundtrip, just found
$76
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Nov 24 from Seattle to Las Vegas, returning Wed, Nov 26, priced at $76 just found
Southwest Airlines
Sun, Jan 11 - Thu, Jan 15
SEA
Seattle
LAS
Las Vegas
$87 Roundtrip, just found
$87
Roundtrip
just found
Select Southwest Airlines flight, departing Sun, Jan 11 from Seattle to Las Vegas, returning Thu, Jan 15, priced at $87 just found
Alaska Airlines
Wed, Feb 4 - Tue, Feb 10
SEA
Seattle
LAS
Las Vegas
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Feb 4 from Seattle to Las Vegas, returning Tue, Feb 10, priced at $97 just found
Delta
Sun, Feb 1 - Thu, Feb 5
SEA
Seattle
LAS
Las Vegas
$98 Roundtrip, found 2 hours ago
$98
Roundtrip
found 2 hours ago
Select Delta flight, departing Sun, Feb 1 from Seattle to Las Vegas, returning Thu, Feb 5, priced at $98 found 2 hours ago
American Airlines
Sun, Dec 7 - Tue, Dec 9
SEA
Seattle
LAS
Las Vegas
$158 Roundtrip, found 3 hours ago
$158
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Dec 7 from Seattle to Las Vegas, returning Tue, Dec 9, priced at $158 found 3 hours ago

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

November is typically the cheapest month to fly

From $46 - $180 per traveler.

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $137
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $137

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) cost?
Grab a cheap one-way flight from $29 or cheap return flight from $54 from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
January is the least expensive month to fly from SEA to LAS. Traveling during quieter months is often the key to finding better deals on flights.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
When flying from Seattle - Tacoma Intl. Airport (SEA), 5 carriers can take you straight to Harry Reid Intl. Airport (LAS) without a layover, including:

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

What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
While prices can vary depending on when you travel, Frontier Airlines and Spirit Airlines are popular choices for flights between Seattle - Tacoma Intl. Airport (SEA) and Harry Reid Intl. Airport (LAS). You can also compare airlines on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your SEA to LAS flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
Every day on average, 15 nonstop flights operate from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS). Choose the departure time that best suits your travel plans.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
The 9 AM departures from SEA to LAS are the busiest. Greater demand means you'll likely pay more for these departures. If you want to save on your fare, book during off-peak hours.
What day of the week has the most flights from SEA to LAS?
Travel on a Monday if you're looking for the best selection of flights from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
Catch the earliest flight at around 5:45AM UTC-8, departing from Seattle - Tacoma Intl. Airport (SEA). You'll be flying for approximately 2h 25m, coming in to land at Harry Reid Intl. Airport (LAS) at approximately 8:10AM UTC-8.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
It takes about 2 hours and 31 minutes to travel the 870 mi from SEA to LAS.
What airline has the least delays from SEA to LAS?
Consider traveling with United Airlines if you'd like to fly straight from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) without any interruptions. This airline has the best track record for punctuality, with an on-time score of 100%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being 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 Las Vegas from Seattle - Tacoma Intl. Airport (SEA)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from Seattle - Tacoma Intl. Airport (SEA). Browse the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your departure to book your flight from SEA to LAS often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a SEA to LAS flight and hotel package?
Securing a SEA to LAS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our impressive range of hotels and then add activities, flights and car rentals 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 Seattle - Tacoma Intl. Airport (SEA) to Harry Reid Intl. Airport (LAS)?
In most instances, you can modify or cancel your SEA to LAS flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, visit our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$54
Distance
866 mi
Average flight time
2 hours 28 mins

Book with confidence

Seattle to Las Vegas Flights

The cheapest times to fly from Seattle to Las Vegas

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 Seattle to Las Vegas are during the month of January. You can find some of the cheapest flights from Seattle to Las Vegas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Seattle to Las Vegas: 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 Seattle to Las Vegas

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 Seattle to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $29 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 Seattle to Las Vegas 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 Seattle to Las Vegas 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.

 

Seattle to Las Vegas Flights

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*Available to One Key members.