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Cheap flights from Seattle to Las Vegas from C$ 86

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAS
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl are usually found in September or October, booked 48 days in advance, depart on a Sunday or Tuesday and return on a Saturday

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 11 September 2025.

Round-trip from

C$ 148

One-way from

C$ 86

Popular in

December

Cheapest in

September

Average price

C$ 218

Good round-trip deal

C$ 206 or less

Good one-way deal

C$ 147 or less
Southwest
  • Southwest
  • 17/11-19/11
  • Nonstop
  • 5h 20m total
  • Seattle to Las Vegas
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Southwest
  • Southwest
  • 15/10
  • Nonstop
  • 2h 25m total
  • Seattle to Las Vegas
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl.
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Find flight deals from Seattle to Las Vegas

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 11 September 2025.

Mon 17/117:05 a.m.SEA - LAS
Nonstop2h 30mSouthwest
Wed 19/117:40 p.m.LAS - SEA
Nonstop2h 50mSouthwest
Deal found 10/9C$ 148
Wed 15/106:55 a.m.SEA - LAS
Nonstop2h 25mSouthwest
Tue 21/108:10 p.m.LAS - SEA
Nonstop2h 45mSouthwest
Deal found 11/9C$ 151
Tue 28/101:20 p.m.SEA - LAS
1 stop6h 25mSouthwest
Tue 4/114:25 p.m.LAS - SEA
1 stop6h 30mSouthwest
Deal found 11/9C$ 157
Tue 30/97:00 a.m.SEA - LAS
1 stop16h 33mFrontier
Fri 3/1012:46 p.m.LAS - SEA
Nonstop2h 59mFrontier
Deal found 11/9C$ 158
Wed 22/106:55 a.m.SEA - LAS
Nonstop2h 25mSouthwest
Sat 25/107:15 p.m.LAS - SEA
Nonstop2h 50mSouthwest
Deal found 11/9C$ 164
Wed 1/106:45 a.m.SEA - LAS
Nonstop2h 30mSouthwest
Tue 7/105:05 p.m.LAS - SEA
1 stop6h 40mSouthwest
Deal found 10/9C$ 165
Tue 4/1112:35 p.m.SEA - LAS
2 stops6h 35mSouthwest
Thu 13/114:50 p.m.LAS - SEA
Nonstop2h 50mSouthwest
Deal found 11/9C$ 169
Wed 12/118:10 a.m.SEA - LAS
1 stop4h 20mSouthwest
Fri 14/119:40 p.m.LAS - SEA
Nonstop2h 50mSouthwest
Deal found 9/9C$ 170
Tue 18/1112:05 p.m.SEA - LAS
Nonstop2h 42mAlaska Airlines
Tue 18/116:37 p.m.LAS - SEA
Nonstop2h 52mAlaska Airlines
Deal found 11/9C$ 176
Sat 18/105:30 p.m.SEA - LAS
1 stop4h 40mSouthwest
Tue 21/108:10 p.m.LAS - SEA
Nonstop2h 45mSouthwest
Deal found 10/9C$ 177

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 11 September 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 18/11

12:35 p.m.-7:10 p.m.

2 stops6h 35m

Las Vegas Harry Reid Intl

Thu 20/11

9:05 a.m.-11:55 a.m.

Nonstop2h 50m

C$ 169

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 28/10

1:20 p.m.-7:45 p.m.

1 stop6h 25m

Las Vegas Harry Reid Intl

Fri 31/10

7:15 p.m.-10:05 p.m.

Nonstop2h 50m

C$ 170

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 21/10

4:59 p.m.-7:33 p.m.

Nonstop2h 34m

Las Vegas Harry Reid Intl

Fri 24/10

7:35 p.m.-10:30 p.m.

Nonstop2h 55m

C$ 184

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 2/12

7:59 p.m.-10:34 p.m.

Nonstop2h 35m

Las Vegas Harry Reid Intl

Thu 4/12

7:12 p.m.-10:13 p.m.

Nonstop3h 01m

C$ 184

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 22/10

7:10 a.m.-9:47 a.m.

Nonstop2h 37m

Las Vegas Harry Reid Intl

Wed 29/10

6:00 a.m.-8:46 a.m.

Nonstop2h 46m

C$ 184

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 8/10

4:40 p.m.-7:05 p.m.

Nonstop2h 25m

Las Vegas Harry Reid Intl

Wed 15/10

1:00 p.m.-6:40 p.m.

1 stop5h 40m

C$ 186

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Sat 11/10

6:05 p.m.-8:36 p.m.

Nonstop2h 31m

Las Vegas Harry Reid Intl

Tue 14/10

6:00 a.m.-8:46 a.m.

Nonstop2h 46m

C$ 195

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 16/12

12:35 p.m.-7:10 p.m.

2 stops6h 35m

Las Vegas Harry Reid Intl

Thu 18/12

9:40 p.m.-12:30 a.m.

Nonstop2h 50m

C$ 198

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 18/11

10:42 a.m.-1:26 p.m.

Nonstop2h 44m

Las Vegas Harry Reid Intl

Fri 21/11

9:11 p.m.-11:59 p.m.

Nonstop2h 48m

C$ 201

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 3/3

8:10 p.m.-10:46 p.m.

Nonstop2h 36m

Las Vegas Harry Reid Intl

Thu 5/3

10:59 a.m.-1:52 p.m.

Nonstop2h 53m

C$ 201

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 23 results
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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 round-trip 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 round-trip flight from Seattle to Las Vegas. Price data was last updated on 29 August 2025.

Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 C$ 212). Flying from Seattle to Las Vegas in August is currently the most expensive (average of C$ 291). 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 11 September 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Las Vegas in the morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Seattle to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Las Vegas. Price data was last updated on 7 September 2025.

Travelers seeking maximum savings on their Seattle to Las Vegas flight should consider departing on Sunday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip 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 11 September 2025.
Check out reviews from past customers who have flown with Alaska Airlines,Southwest, andDelta 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
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Spirit Airlines
6.3
Okay
8,023 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 wish to fly to Las Vegas from Seattle, then you need to book flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl. There are 26 flights from Seattle/Tacoma Intl (SEA) to Harry Reid Intl (LAS) per day to choose from. Flights to Las Vegas from Seattle/Tacoma Intl are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 2h 25m is how long a nonstop flight from Seattle to Las Vegas Harry Reid Intl typically takes.

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

    Within the past month, 375 users have taken a look at flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl.

  • How long is the flight from Seattle to Las Vegas?

    Departing from Seattle to Las Vegas will take you 2h 34m. The distance between Seattle and Las Vegas is about 1394 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Las Vegas round-trip?

    Flying on Frontier is currently your cheapest option to Las Vegas, with prices starting at C$ 53. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Alaska Airlines, with the lowest prices starting at C$ 56 and C$ 102, respectively. You may be able to fly from Seattle to Las Vegas for 80% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as C$ 86. Users have also found prices from C$ 93 and C$ 93 on Alaska Airlines and Hawaiian Airlines, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Las Vegas consider choosing KLM (93%), Delta (90%) or WestJet (90%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Seattle to Las Vegas is generally C$ 706, our data shows the cheapest flight currently is C$ 103. When looking at the most popular route, (Seattle/Tacoma Intl - Las Vegas Harry Reid Intl), you can expect to pay C$ 281 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 vacation 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 C$ 212). Flying from Seattle to Las Vegas in August is currently the most expensive (average of C$ 291). 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
Henderson
Boulder City
North Las Vegas
Paradise

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Fly from Seattle to Las Vegas on these airlines

Choose from the following airlines for your flight from Seattle to Las Vegas. Flights are based on user searches made on Cheapflights and were last updated on 11 September 2025.
Spirit Airlines flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl
Frontier flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl
Alaska Airlines flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl

Top 6 airlines flying from Seattle to Las Vegas

Discover the top 6 airlines 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 53AverageC$ 176FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapestC$ 56AverageC$ 172FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapestC$ 102AverageC$ 290FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapestC$ 116AverageC$ 245FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Hawaiian AirlinesCheapestC$ 189AverageC$ 324FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
SouthwestCheapestC$ 191AverageC$ 357FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Seattle to Las Vegas, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Las Vegas for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Seattle to Las Vegas 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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