Cheap Flights from Seattle (SEA) to Las Vegas (LASA)

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Compare Seattle / Tacoma International to Las Vegas flight deals

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Flight deals from Seattle / Tacoma International to Las Vegas

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Las Vegas? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to Las Vegas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Las Vegas flights are currently cheapest in May.

Direct flights from Seattle / Tacoma International to Las Vegas

Alternative Seattle / Tacoma International to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Seattle / Tacoma International to Las Vegas? You could fly into the following airports instead.

Seattle to Las Vegas: Flight information

The things to know before you go.
Cheapest flight found$113
Cheapest month to flyMay
Average flight time2 hrs, 35 mins
Most popular airlineWestJet
Average flights per week394

Finding cheap flights from Seattle / Tacoma International to Las Vegas: Frequently asked questions

There are 4 airports in Las Vegas: Las Vegas North Air Terminal, Las Vegas Harry Reid International, Las Vegas Henderson Sky Harbor, and Boulder City.
The best price we found for a return flight from Seattle / Tacoma International to Las Vegas is $113. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 35 minutes is the average flight time from Seattle / Tacoma International to Las Vegas.
WestJet, Air Tahiti Nui and Alaska Airlines fly direct from Seattle / Tacoma International to Las Vegas.
As of May 2025, there are 394 flights per week flying from Seattle / Tacoma International to Las Vegas.
The cheapest month to fly from Seattle / Tacoma International to Las Vegas is usually May 2025.
If you're flying from Seattle / Tacoma International Airport, the cheapest airport near Las Vegas is Las Vegas Harry Reid International – which is 4.3 km away from the centre of Las Vegas. We've found flights into this airport from $113.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Las Vegas on Tuesday, 27 May 2025.
Yes – the average flight time is 2 hours and 35 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 21°C. July is typically the warmest month in Las Vegas, when it usually averages around 37°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging -0°C. The rainiest month is February.
Currently, Spirit Airlines offers the cheapest flight tickets to Las Vegas.

Flying from Seattle-Tacoma International Airport (SEA) to Las Vegas: what you need to know

  • Approximately 2 hours 45 minutes is how long you'll be travelling on a direct flight from Seattle-Tacoma International Airport to Las Vegas.

  • Seattle (the location of Seattle-Tacoma International Airport) and Las Vegas are in the same timezone — UTC-7.

  • Seattle-Tacoma International Airport (SEA) to Harry Reid Airport (formerly McCarran Airport) (LAS) is the most popular route, with 106 weekly departures to pick from. If you have things to finalize before heading off, the last flight from SEA to LAS is with Alaska Airlines at 21:27. Opt for the first departure with Southwest Airlines at 05:00 if you want to fly out earlier.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This leaves you with plenty of time to catch your SEA to Las Vegas flight.

  • Longer lines at check-in and security are likely if you're travelling during high season, so allow even more breathing space. A good rule of thumb for peak periods? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • Direct Seattle-Tacoma International Airport to Las Vegas tickets are available for booking. Harry Reid Airport (formerly McCarran Airport) (LAS) is where you'll complete your journey.

  • Direct flights from Seattle-Tacoma International Airport to Las Vegas are available from a good range of airlines. Book your seat with any of these:

  • The journey from central Seattle to SEA takes around 55 minutes by public transport. If you drive, ride-share or grab a cab, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic.

  • Have an early flight from Seattle-Tacoma International Airport to Las Vegas? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these hotels near SEA:

  • Seattle-Tacoma International Airport scores high marks for its on-time performance. 81.27% of flights that take off from SEA arrive at their destination as scheduled.

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Las Vegas

  • $47 is currently the best price for a one-way Seattle-Tacoma International Airport to Las Vegas flight. Return flight tickets start from $113. These fares may change depending on availability.

  • To score cheap flights from SEA to Las Vegas, book your journey one month ahead of your planned departure.

  • The best month for finding cheap Seattle-Tacoma International Airport to Las Vegas tickets is May. Use the 'Whole month' tool to compare all available prices, then choose the dates that offer the biggest savings.

  • Picking up a cheap flight from SEA to Las Vegas is easy with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you as soon as a cheaper option becomes available.

  • Choose your preferred arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Seattle-Tacoma International Airport to Las Vegas by 'Fastest,' 'Best' or 'Cheapest.'

Airports in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

  • The distance from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas is roughly 19 kilometres. It'll take you about 15 minutes to get to the centre driving.

  • If you're using public transport, expect a journey time of about 1 hour.

  • Think about booking a hotel near LAS if you have a late flight from Seattle-Tacoma International Airport to Las Vegas. Check in to one of these options and make your first night all about rest:

  • Get on the fast track to adventure by picking up a Harry Reid Airport (formerly McCarran Airport) rental car. Grab a set of wheels from Dollar, Thrifty or Alamo and explore beyond Las Vegas's main sights.

  • Get the best deal by booking your ride from Harry Reid Airport (formerly McCarran Airport) about one week before your flight from SEA to Las Vegas.

  • The address for LAS is 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • Before scheduling your flights from Seattle-Tacoma International Airport to Las Vegas, consider which time of year works best for you. High season in Las Vegas offers a lively atmosphere and plenty of things to do, while the low season means you'll get cheaper hotel deals and fewer crowds.

  • Before locking in your Seattle-Tacoma International Airport to Las Vegas flight ticket, think about the kind of weather you prefer. July is the warmest month in Las Vegas, with temperatures ranging from 23ºC (73ºF) to 42ºC (108ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from SEA to Las Vegas in January when temperatures average between -1ºC (30ºF) and 13ºC (55ºF).

More about Las Vegas

  • When it comes to searching for somewhere to rest your head, you'll find the most popular stays in Las Vegas right here. Check out these hotels after locking in your flight from Seattle-Tacoma International Airport to Las Vegas:

  • All great adventures should include a little sightseeing. Fountains of Bellagio, Las Vegas Strip and Fremont Street Experience are must-visits when exploring Las Vegas.

Explore more of United States

  • Los Angeles is just one of the many places in United States waiting to be explored once you've taken in the sights of Las Vegas. Around 370 kilometres away to the south-west, its best attractions include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Phoenix is another essential stop in United States and is around 418 kilometres south-east of Las Vegas. No journey is complete without experiencing Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.