LAS - SEA

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Everything you should know

Cheapest round-trip
$123
Typical prices: $134-$293
Frontier
Wed 10/3Fri 10/5
LAS - SEA • Non-stop
Cheapest non-stop
$129
Typical prices: $132-$293
Frontier
Sat 11/10Sat 11/17
LAS - SEA • Non-stop
Advice from real travelers
Frontier Economy Bundle adds a carry-on and no change fees; Southwest keeps free carry-on.
Alaska Premium Class adds legroom; Delta offers free Wi-Fi for SkyMiles members.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Alaska Airlines, Delta and others. Average duration is 2h 51m.
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 56% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $236 (round-trip)
Shortest trip • 5h 12m (one-way)
Insights
Insights
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to Seattle

Sat, Oct 3 - Mon, Oct 5
Frontier Logo
6:50 am - 9:42 amLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 52mnonstop
Frontier Logo
10:53 am - 3:40 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
4h 47m1 stop Ontario
$123Frontier
Mon, Nov 2 - Tue, Nov 3
Frontier Logo
5:19 pm - 6:54 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
25h 35m1 stop Los Angeles Los Angeles
Frontier Logo
8:09 pm - 6:30 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
22h 21m1 stop Los Angeles Los Angeles
$124Frontier
Wed, Oct 21 - Wed, Oct 28
Multiple Airlines Logo
5:07 pm - 7:55 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 48mnonstop
Multiple Airlines Logo
12:14 pm - 2:56 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 42mnonstop
$175Multiple Airlines
Tue, Oct 20 - Tue, Nov 17
Multiple Airlines Logo
7:02 am - 9:50 amLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 48mnonstop
Multiple Airlines Logo
12:14 pm - 2:56 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 42mnonstop
$181Multiple Airlines
Tue, Dec 8 - Tue, Dec 15
Alaska Airlines Logo
7:00 am - 9:51 amLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 51mnonstop
Alaska Airlines Logo
11:25 am - 1:55 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 30mnonstop
$219Alaska Airlines
Wed, Oct 21 - Wed, Oct 28
Alaska Airlines Logo
5:07 pm - 7:55 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 48mnonstop
Alaska Airlines Logo
3:33 pm - 6:09 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 36mnonstop
$219Alaska Airlines
Sat, Oct 17 - Tue, Oct 20
Southwest Logo
7:40 pm - 10:25 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 45mnonstop
Southwest Logo
12:45 pm - 3:15 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 30mnonstop
$221Southwest
Wed, Oct 21 - Sat, Oct 24
Southwest Logo
8:15 pm - 11:00 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 45mnonstop
Southwest Logo
6:30 am - 8:55 amSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 25mnonstop
$221Southwest
Wed, Oct 14 - Wed, Oct 21
Delta Logo
7:15 pm - 10:05 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 50mnonstop
Delta Logo
7:45 pm - 10:22 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 37mnonstop
$225Delta
Wed, Oct 14 - Wed, Oct 21
Delta Logo
7:15 pm - 10:05 pmLAS  Las Vegas Harry Reid Intl-SEA Seattle/Tacoma Intl
2h 50mnonstop
Delta Logo
7:45 pm - 10:22 pmSEA  Seattle/Tacoma Intl-LAS Las Vegas Harry Reid Intl
2h 37mnonstop
$225Delta
Booking Insights

Price, demand and travel trends for Las Vegas to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Las Vegas to Seattle with more confidence.

How much is a round-trip flight from Las Vegas to Seattle?

Round-trip flights from Las Vegas to Seattle start at $123. Prices are below average for this route right now, with typical round-trip fares ranging from $134 to $293. The lowest price found in the past 5 days was $123 on Frontier.

What's the cheapest day of the week to fly from Las Vegas to Seattle?

Friday is the cheapest day of the week to fly from Las Vegas to Seattle, it is 8% cheaper than the average day. Sunday is the most expensive day with flight prices 31% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•February is the cheapest month to fly from Las Vegas to Seattle at $137 round-trip.
•May ($251) and July ($250) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 83% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Las Vegas to Seattle the cheapest?

Flights from Las Vegas to Seattle are cheapest 7 weeks before departure. Booking in this window typically costs about 56% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Las Vegas to Seattle

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines, SEA and LAS

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Key details for Las Vegas to Seattle flights

Low season

March

Cheapest flight

$79
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Las Vegas to Seattle

When to book flights from Las Vegas to Seattle

Are your dates flexible? Find out the best times to travel from Las Vegas to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Las Vegas to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Las Vegas to Seattle 
ElianaFlew with Spirit Airlines-Sep 2024
Bring a backpack to avoid a ridiculous charge
KellyFlew with Alaska Airlines-Apr 2024
I took Spirit to Vegas and Alaska home. First time flying Spirit, which was Spartan, had uncomfortable seats, the rows were thinner than Alaska, and they give you absolutely nothing on the flight. Not even water. So definitely take care of yourself if you’re flying spirit.

Your Las Vegas to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What is there to do at the airport in Seattle as I await my pickup?

    SEA offers live music and art displays for travelers waiting for pickup. Popular pieces include Currents by Weston Lambert in the Interfaith Prayer and Meditation Room, post-security below Concourse A and Blackleaf by Deborah Butterfield in the North Satellite. Another option is a massage at the Massage Bar in the North Satellite.

  • What are the rental car companies at SEA?

    The Sea-Tac car rental facility is off site and served by complimentary shuttle buses that run around the clock. These shuttles depart from two passenger pick-up areas outside on the lower drive at baggage claim level, one at the north end and one at the south end of the terminal.

  • What are the inter-terminal transfer options at LAS?

    Harry Reid International Airport (LAS) has 108 gates across five concourses, A, B, C, D and E and two terminals, Terminal 1 and Terminal 3. The Harry Reid International Airport Automated People Mover connects Terminal 1, Terminal 3, C Gates and D Gates. The airport tram serves C Gates and Terminal 1. The blue line connects D Gates and Terminal 1 and the red line serves D Gates and Terminal 3.

  • I have lost my luggage at Seattle/Tacoma airport, what should I do?

    A lost and found office is located on the baggage claim level and the service is free. A lost and found claim must be filed with contact information, an item description and the location and date the item was lost.

  • Does LAS offer any support services for travelers with special needs?

    Yes. Both LAS terminals have gender-neutral and accessible restrooms. Courtesy shuttles run between the terminals. Travelers can request special assistance through their airline when booking a flight to Seattle.

  • Are there pet services at LAS?

    Yes, LAS has designated indoor and outdoor areas in the airport where pets can relieve themselves before a flight.

  • Which airlines offer extra legroom and free seat selection on Las Vegas to Seattle flights?

    Among airlines operating Las Vegas to Seattle flights:

    • Frontier: offers free seat selection
    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection
    • JetBlue: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Las Vegas to Seattle?

    5 airlines operate flights between Las Vegas and Seattle. The airlines offering nonstop flights on this route include:

    • Alaska Airlines
    • Delta
    • Southwest
    • Frontier
    • American Airlines

  • Which airports can I use when flying from Las Vegas to Seattle?

    Flights from Las Vegas to Seattle usually depart from Las Vegas Harry Reid Intl (LAS) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airlines include bags at no extra cost on Las Vegas to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a cabin bag and a checked bag in Economy Class
    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Las Vegas to Seattle?

    Four cabin classes are available on flights from Las Vegas to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Las Vegas to Seattle?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $203 round-trip, compared to $236 via a layover through San Francisco (SFO).

  • What is the standard checked-bag allowance on flights from Las Vegas to Seattle?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Las Vegas to Seattle?

    The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines and Southwest. Other aircraft seen on the route include Airbus A321neo variants.

  • Which airports do connecting flights from Las Vegas to Seattle pass through?

    One-stop flights from Las Vegas to Seattle most commonly connect through:

    • Ontario (ONT) - 48% of one-stop connections
    • Denver Intl (DEN) - 34% of one-stop connections
    • Los Angeles Los Angeles (LAX) - 7% of one-stop connections
    • San Francisco (SFO) - 3% of one-stop connections

    Ontario (ONT) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Las Vegas to Seattle?

    Yes. Being flexible with your travel dates can save you up to 30% on the Las Vegas to Seattle route. Friday is the cheapest departure day at $190 round-trip on average, while Sunday is the most expensive at $270, a difference of $80. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Las Vegas to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Las Vegas to Seattle route, 10% of flights were delayed in the past 3 months, with delays averaging 2 hours 22 minutes.

  • How are flight departures from Las Vegas to Seattle spread across the day?

    Morning is the busiest departure period on Las Vegas to Seattle flights, with 44% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 6%.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • What are the earliest and latest flights from Las Vegas to Seattle?

    These are the earliest and latest flight times available from Las Vegas to Seattle:

    • Earliest: departs at 6:00 am and lands at 8:51 am
    • Latest: departs at 11:05 pm and lands at 1:56 am.

    The flight takes about 2h 51m.

  • How expensive are last-minute Las Vegas to Seattle flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 62% above the route average of $206. Book 7 weeks before departure for the lowest fares.

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

    A nonstop flight from Las Vegas to Seattle takes 2h 51m, covering 866 miles.

  • Do I need a passport to fly from Las Vegas to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Las Vegas to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $123 to $803. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Las Vegas to Seattle looking right now?

    One-way fares from Las Vegas to Seattle are currently lower than usual. Average one-way flight prices are about $105, which is 40% below the typical average for this route.

  • How does Delta’s on-time performance compare to other airlines on Las Vegas to Seattle flights?

    Delta is slightly above the route average for timely arrivals, while Frontier has a lower on-time arrival rate. On-time arrival rates on Las Vegas to Seattle flights are:

    • Delta: 93% on time
    • Frontier: 91% on time
    • Alaska Airlines: 91% on time

    Overall, flights on this route are on time 90% of the time on average.

  • How do delay rates compare for morning and evening flights from Las Vegas to Seattle?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Las Vegas to Seattle?

    Flying via San Jose (SJC) gives the shortest average 1-stop total travel time at 5h 12m, compared with 5h 42m via Ontario (ONT) and 5h 56m via San Francisco (SFO).

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • How much should I expect to pay for a Las Vegas to Seattle flight?

    Round-trip flights from Las Vegas to Seattle range from $134 to $293, with an average of $206 over the past 12 months. Anything below $134 counts as a good deal.

  • Which airlines offer Wi-Fi on Las Vegas to Seattle flights?

    Three airlines offer in-flight Wi-Fi on Las Vegas to Seattle flights:

    • Alaska Airlines
    • Delta
    • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Las Vegas to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $190 - about $80 less than Sunday (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 56% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Las Vegas to Seattle trip for February. Fares historically average $137 round-trip in that month - typically $114 less than the most expensive month, which is May (based on the last 12 months).
  • If arriving on time is high on your priority list, Delta is the strongest pick on this route. 93% of Delta flights from Las Vegas to Seattle arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 90%. When flights on this route do arrive late, the average delay is 2 hours 22 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport
  • Heading to Harry Reid International Airport from Las Vegas Boulevard is straightforward, since the airport is just 2 miles away. Before leaving, check whether your flight departs from Terminal 1 or Terminal 3, as airlines including United Airlines, American Airlines, Alaska Airlines, Delta and Frontier serve the airport. You'll land at Seattle/Tacoma International Airport (SEA).
  • From Seattle–Tacoma International Airport, you can take a taxi to downtown Seattle in about 19 minutes or use the direct bus, which takes around 51–54 minutes. The airport is around 13 miles from downtown.
  • Choose a taxi, rideshare, rental car or limousine to get to or from Harry Reid International Airport (LAS). Before arriving, check whether your flight departs from Terminal 1 or Terminal 3 so you can use the right drop-off area. If you're driving your own car to LAS, several parking options are available.
  • At Seattle/Tacoma International Airport, take advantage of the available amenities, including services for military passengers. If you're traveling with a pet, use the relief areas inside the terminals or outside Door 33 at the north end and on the south end Baggage Claim level.
  • Get a head start on work at LAS before your business trip to Seattle.

Prefer to fly direct from Las Vegas to Seattle?

 
Find which airlines fly direct from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Las Vegas Harry Reid Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta,Frontier, +2 more

Alaska Airlines,Delta, +3 more

Tuesday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Wednesday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Thursday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Friday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Saturday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Sunday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Las Vegas Harry Reid Intl

Monday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Tuesday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Wednesday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Thursday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Friday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

Saturday

Alaska Airlines,Delta,Frontier, +2 more

Alaska Airlines,Delta, +3 more

Sunday

Alaska Airlines,Delta,Frontier, +1 more

Alaska Airlines,Delta, +2 more

See more direct flights

More options for your flight from Las Vegas to Seattle

Complete your trip to Seattle with a hotel stay or car rental