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Cheap flights from Seattle to Las Vegas from £55

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAS
13 Jun — 20 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl are usually found in January or August, booked 73 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Seattle to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Las Vegas
Explore the most affordable flight options available from Seattle to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 May 2026.

Sat 6/608:25
SEA
-
LAS
Nonstop2h 44m
Multiple Airlines
Tue 9/607:45
LAS
-
SEA
Nonstop2h 50m
Multiple Airlines
Deal found 13/5£123
Wed 3/608:25
SEA
-
LAS
Nonstop2h 44m
Alaska Airlines
Wed 3/614:04
LAS
-
SEA
Nonstop2h 55m
Alaska Airlines
Deal found 9/5£127
Tue 2/607:15
SEA
-
LAS
Nonstop2h 35m
Delta
Sat 6/606:04
LAS
-
SEA
Nonstop2h 41m
Delta
Deal found 11/5£131
Tue 9/611:53
SEA
-
LAS
1 stop4h 53m
Frontier
Wed 24/613:55
LAS
-
SEA
1 stop5h 02m
Frontier
Deal found 11/5£138
Tue 2/617:35
SEA
-
LAS
Nonstop2h 35m
Southwest
Tue 9/614:35
LAS
-
SEA
1 stop5h 50m
Southwest
Deal found 12/5£138
Sat 6/615:00
SEA
-
LAS
Nonstop2h 35m
Delta
Mon 8/606:05
LAS
-
SEA
Nonstop2h 40m
Delta
Deal found 9/5£139
Thu 4/616:20
SEA
-
LAS
Nonstop2h 37m
Alaska Airlines
Thu 4/620:56
LAS
-
SEA
Nonstop2h 48m
Alaska Airlines
Deal found 11/5£142
Thu 4/609:45
SEA
-
LAS
Nonstop2h 36m
Delta
Thu 4/619:10
LAS
-
SEA
Nonstop2h 49m
Delta
Deal found 13/5£146
Sat 6/611:51
SEA
-
LAS
1 stop4h 52m
Frontier
Tue 9/613:55
LAS
-
SEA
1 stop5h 02m
Frontier
Deal found 13/5£146
Wed 3/614:36
SEA
-
LAS
1 stop5h 32m
United Airlines
Fri 5/619:52
LAS
-
SEA
1 stop5h 37m
United Airlines
Deal found 12/5£149

Find flight deals from Seattle to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Las Vegas (LAS). 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 14 May 2026.

Round-trip from

£123

One-way from

£55

Popular in

May

Cheapest in

January

Average price

£209

Good one-way deal

£85 or less
Frontier
  • Frontier
  • 6/6-9/6
  • Nonstop
  • 5h 34m total
  • Seattle to Las Vegas
Search Deals
Frontier
  • Frontier
  • 3/9
  • Nonstop
  • 2h 35m total
  • Seattle to Las Vegas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Las Vegas 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 858,174 searches. Data last updated 14 May 2026.
Use the filters below to find and compare flights from Seattle to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 2/6

16:20-18:57

Nonstop2h 37m

Las Vegas Harry Reid Intl

Mon 8/6

20:56-23:44

Nonstop2h 48m

£138

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Mon 1/6

09:40-17:15

2 stops7h 35m

Las Vegas Harry Reid Intl

Tue 9/6

14:35-20:25

1 stop5h 50m

£190

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 9/6

14:00-20:45

1 stop6h 45m

Las Vegas Harry Reid Intl

Wed 24/6

12:45-18:50

2 stops6h 05m

£191

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 3/6

11:35-17:35

2 stops6h 00m

Las Vegas Harry Reid Intl

Sat 6/6

16:40-23:10

2 stops6h 30m

£201

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Sat 6/6

15:55-23:05

1 stop7h 10m

Las Vegas Harry Reid Intl

Tue 9/6

12:45-18:50

2 stops6h 05m

£202

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 21/7

07:30-15:40

2 stops8h 10m

Las Vegas Harry Reid Intl

Tue 28/7

09:05-16:50

1 stop7h 45m

£209
Fastest return journey

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Sun 5/7

09:55-12:28

Nonstop2h 33m

Las Vegas Harry Reid Intl

Wed 8/7

19:06-21:49

Nonstop2h 43m

£212

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 16/9

05:55-12:10

2 stops6h 15m

Las Vegas Harry Reid Intl

Tue 22/9

12:40-19:10

2 stops6h 30m

£227

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 16/9

11:10-18:55

2 stops7h 45m

Las Vegas Harry Reid Intl

Wed 23/9

12:40-19:10

2 stops6h 30m

£227

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Fri 23/10

19:10-23:55

1 stop4h 45m

Las Vegas Harry Reid Intl

Mon 26/10

06:00-12:35

1 stop6h 35m

£231

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Seattle to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Seattle with our price prediction graph.
Estimated return 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 Seattle to Las Vegas

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

The best time to book flights from Seattle to Las Vegas is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Las Vegas (average of £129). Flying from Seattle to Las Vegas in May is currently the most expensive (average of £209). 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 SEA to LAS?

Find hourly flight availability from Seattle to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 May 2026.

It’s typically best to fly out from Seattle to Las Vegas at midday. Doing so could potentially save you 64% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost for a return flight from Seattle to Las Vegas?

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated 14 May 2026.
Check out reviews from past customers who have flown with Alaska Airlines from Seattle to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,361 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,361 reviews
Alaska Airlines
7.9
Good
12,361 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Las Vegas. 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 Seattle to Las Vegas?

    If you book a flight from Seattle to Las Vegas, you will be flying from Seattle/Tacoma Intl to Harry Reid Intl. Flights to Las Vegas Harry Reid Intl (LAS) from Seattle/Tacoma Intl (SEA) take 2h 37m for a nonstop flight. There are 22 flights from Seattle/Tacoma Intl to Las Vegas per day from 1 airline.

  • How popular is this Seattle to Las Vegas flight route?

    This flight path from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl was viewed by 3 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 Seattle to Las Vegas?

    There are many flights that can get you from Seattle to Las Vegas in 2h 40m. Fly via Southwest to get the fastest option. Seattle and Las Vegas are separated by a distance of 866 mi. All flights are typically direct.

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

    According to our current data, Alaska Airlines (£83), offers the cheapest pricing from Seattle to Las Vegas. Users have found that Alaska Airlines is 50% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as £46. Users have also found prices from £51 and £64 on Delta and Alaska Airlines, respectively.

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

    Consider Scandinavian Airlines (100%), Aeromexico (97%) or Japan Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Las Vegas.

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

    While on average a flight from Seattle to Las Vegas is generally £92, our data shows the cheapest flight currently is £55. When looking at the most popular route, (Seattle/Tacoma Intl - Las Vegas Harry Reid Intl), you can expect to pay £114 for that flight.

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

    Yes. In addition to deals on Seattle to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Las Vegas.

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

    Yes. Cheapflights offers flight deals from Seattle to Las Vegas 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 Seattle to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Las Vegas (average of £129). Flying from Seattle to Las Vegas in May is currently the most expensive (average of £209). 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

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Furnace Creek
Henderson

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Alternative routes for Seattle to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Las Vegas flights

Top airline flying from Seattle to Las Vegas

Discover the top airline that operate flights from Seattle to Las Vegas. 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 858,174 searches. Data last updated 14 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£83Average£146FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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How does Cheapflights help users find flights from Seattle to Las Vegas?

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Las Vegas?

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Can Cheapflights find flights from Seattle to Las Vegas with no change fees?

Need flexible booking options for your flight to Las Vegas from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Las Vegas become cheaper?

Yes! Start tracking prices for Seattle to Las Vegas flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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