Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to Las Vegas from £37

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAS
14 Dec — 21 Dec1
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 February or March, booked 81 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap 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 November 2025.

Round-trip from

£67

One-way from

£37

Popular in

October

Cheapest in

February

Average price

£158
Frontier
  • Frontier
  • 14/12-20/12
  • 1 total stop
  • 7h 33m total
  • Seattle to Las Vegas
Search Deals
Delta
  • Delta
  • 7/1
  • Nonstop
  • 2h 28m total
  • Seattle to Las Vegas
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£6 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 November 2025
Search Deals

Find 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 November 2025.

Sun 14/1218:18SEA - LAS
Nonstop2h 35mFrontier
Sat 20/1208:56LAS - SEA
1 stop4h 58mFrontier
Deal found 12/11£67
Sun 21/1220:10SEA - LAS
Nonstop2h 40mDelta
Tue 6/117:40LAS - SEA
Nonstop2h 52mDelta
Deal found 13/11£81
Sat 13/1207:05SEA - LAS
Nonstop2h 37mAlaska Airlines
Sat 13/1212:51LAS - SEA
Nonstop2h 54mAlaska Airlines
Deal found 12/11£84
Sun 21/1220:10SEA - LAS
Nonstop2h 40mDelta
Thu 1/109:50LAS - SEA
Nonstop2h 55mDelta
Deal found 13/11£89
Thu 4/1207:05SEA - LAS
Nonstop2h 30mSouthwest
Fri 12/1205:50LAS - SEA
1 stop4h 30mSouthwest
Deal found 13/11£97
Wed 17/1208:17SEA - LAS
Nonstop2h 41mAlaska Airlines
Wed 17/1214:57LAS - SEA
1 stop6h 46mAlaska Airlines
Deal found 12/11£100
Tue 9/1206:15SEA - LAS
2 stops5h 55mSouthwest
Wed 10/1209:05LAS - SEA
Nonstop2h 50mSouthwest
Deal found 11/11£100
Wed 10/1210:50SEA - LAS
1 stop7h 00mSouthwest
Wed 17/1207:25LAS - SEA
1 stop7h 00mSouthwest
Deal found 12/11£103
Tue 16/1208:17SEA - LAS
Nonstop2h 41mAlaska Airlines
Tue 16/1218:55LAS - SEA
1 stop5h 17mAlaska Airlines
Deal found 13/11£104
Sat 6/1213:30SEA - LAS
1 stop5h 55mAlaska Airlines
Sat 6/1220:30LAS - SEA
Nonstop2h 53mAlaska Airlines
Deal found 14/11£107
Fri 19/1207:20SEA - LAS
Nonstop2h 39mDelta
Sat 27/1206:00LAS - SEA
Nonstop2h 53mDelta
Deal found 12/11£112

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 November 2025.
Use the filters below to find and compare flights from Seattle to Las Vegas that are best for you.

Fly from

Seattle

Fly to

Las Vegas

Route

Depart

Return

Price

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 10/3

21:22-23:55

Nonstop2h 33m

Las Vegas Harry Reid Intl

Wed 11/3

06:00-08:51

Nonstop2h 51m

£74

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Fri 6/2

07:20-09:58

Nonstop2h 38m

Las Vegas Harry Reid Intl

Tue 10/2

15:59-18:49

Nonstop2h 50m

£81

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 3/2

08:45-11:15

Nonstop2h 30m

Las Vegas Harry Reid Intl

Fri 6/2

15:00-22:50

1 stop7h 50m

£81

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 14/1

17:59-20:26

Nonstop2h 27m

Las Vegas Harry Reid Intl

Mon 19/1

06:00-08:49

Nonstop2h 49m

£81

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Sun 14/12

15:12-17:41

Nonstop2h 29m

Las Vegas Harry Reid Intl

Thu 18/12

06:00-08:54

Nonstop2h 54m

£89

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 30/12

20:10-22:50

Nonstop2h 40m

Las Vegas Harry Reid Intl

Sun 4/1

15:50-18:40

Nonstop2h 50m

£89

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Thu 11/12

21:23-23:55

Nonstop2h 32m

Las Vegas Harry Reid Intl

Thu 18/12

17:42-20:35

Nonstop2h 53m

£89

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Fri 12/12

09:59-12:35

Nonstop2h 36m

Las Vegas Harry Reid Intl

Sat 13/12

14:03-16:53

Nonstop2h 50m

£89

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Sat 17/1

07:20-09:58

Nonstop2h 38m

Las Vegas Harry Reid Intl

Mon 19/1

06:00-08:49

Nonstop2h 49m

£89

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 9/12

15:45-18:16

Nonstop2h 31m

Las Vegas Harry Reid Intl

Wed 10/12

15:50-18:40

Nonstop2h 50m

£89

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 23 results
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?

Use this chart to determine the optimal time to book a return flight from Seattle to Las Vegas. Price data was last updated on 7 November 2025.

The best time to book flights from Seattle to Las Vegas is 81 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, March is the cheapest month in which you can book a flight from Seattle to Las Vegas (average of £36). Flying from Seattle to Las Vegas in July is currently the most expensive (average of £77). 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 November 2025.

It’s typically best to fly out from Seattle to Las Vegas at midday. Doing so could potentially save you 69% on the flight price compared to flying in the evening, which is usually more expensive.

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 November 2025.
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
8.0
Very Good
11,288 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very Good
11,288 reviews
Alaska Airlines
8.0
Very Good
11,288 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 35m for a nonstop flight. There are 35 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 15 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 30m. Fly via Delta or Alaska Airlines 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 (£125), offers the cheapest pricing from Seattle to Las Vegas. Users have found that Alaska Airlines is 21% cheaper than the other options available to this destination.

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

    Consider SkyWest Airlines (100%), KLM (94%) or Air France (93%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Las Vegas.

  • 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, March is the cheapest month in which you can book a flight from Seattle to Las Vegas (average of £36). Flying from Seattle to Las Vegas in July is currently the most expensive (average of £77). 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
Kingman
Henderson
Paradise

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 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 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£125Average£160FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Las Vegas from Seattle today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Las Vegas from Seattle.

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.

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.