Best Airlines Operating Las Vegas to Seattle Routes
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, and United are among the best airlines to choose from. 
Top Tourist Attractions in Seattle
Seattle projects a never-ending touristy spot where exploration and discoveries never come to halt. The Emerald City is luxurious and known for its sophisticated hospitality and adventure.  Seattle has museums, grand theaters hosting movie shows and the Seattle International Film Festival is just the place to exploit.  Here are a few tourist attractions that will meet your inquisitive eyes when you land in Seattle city: 
#1-Washington State Ferries-Exploring the gorgeous coastline of the Pacific Northwest on a ferry is an idyllic transformation for couples, families as well as those who want to spend time sailing on marine waters. The short Seattle ferry begins from Colman Dock and sails to Bainbridge Island, Bremerton, etc.  The level of forgetfulness after the sailing adventure is simply impossible.
#2-Chinatown - The Asian neighborhood is extravagant and is the threshold to vibrant cultures and traditions that could be seen on the streets.  Taste the best of the cuisines right there at pho's delectable presentation and umpteen artistry of tasting the Sushi. 
#3-Mt. Rainier - Topping the adventure means beginning an expedition to Mt. Rainer. The beauty of this mountain is hailed as soon the tourists watch the white snow layer covering the top. The surrounding Mt.Rainer Park offers romantic environment to view the sun set 
#4-Museum of Flight - Tourists who have a love for vintage airplanes cannot miss the visit to the museum. The museum is known to have the biggest collection from the world of aviation and space as well. And that's true - the museum will take you straight from history to futuristic space expeditions.
#5-The Seattle Aquarium- Tourists have love for marine life, and when exploring this life meets reality like in The Seattle Museum, their day dreaming is over soon.  The amazing aquarium has various species of sharks, jellyfish and many more. Tourists are living a splendid moment submerged deep in the marine waters but completely dry.  
Nonstop and Connecting Flight Options – Which to Choose?
Nonstop flights are not time consuming but expensive. On the contrary, the connecting flights consume time but are less expensive as compared to the nonstop flights.  Both these flights have their own purpose and reasoning, and travelers can just make the choice on the basis of their time schedules and budget.   
Travel Tips for a Smooth Journey from Las Vegas to Seattle
Shop for the budgeted airlines – Check for the budgeted flight deals usually available for the short haul flights and save your hard-earned money. Balance your flight budget against the overall expenditure. 
Search aggressively on flight engines- Make sure that you do not restrict yourself to any single flight engine. And moreover, set price alerts on your mobile. It is still a good idea to go for top notch flight comparison websites like Kayak, Skyscanner etc. 
Choose airport alternatives- One could look out for the small airports as flying out from these airports will save you dollars and time too. 
Book Flight Tickets Early – Do not extend your flight booking until the last day as this is going to cost you quite a lot. And above all, you may also have to go through the hassles. Always book at least 2 to 3 weeks before the day of your departure.  
Take advantage of Loyalty Programs – Several airlines offer loyalty programs to passengers who travel on the same route consistently. The frequent flyer program gives out points that could be redeemed for flying either free or on discounted flights. 
Conclusion 
Explore your dreams and live to the best of your lives as you fly to Seattle. The world here is too unusual and filled with astonishment. This is the petite world full of exciting touristy spots. Book the flight from Harry Reid Intl. Airport (LAS) to Seattle - Tacoma Intl. Airport (SEA) right away.