Cheap Flights from Las Vegas to Seattle from $20

Frequently Asked Questions

• What are the cheapest flights from Las Vegas to Seattle (LAS-SEA)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $20 on Cheapest nonstop routes (e.g. LAS to SEA on Fri, Jan 30), while Frontier Airlines offers Cheapest nonstop round-trips from $51 departing on Fri, Jan 30 and returning on Mon, Feb 2.

• Which airlines offer direct flights from Las Vegas to Seattle?

  At the moment, you can catch a nonstop flight from Las Vegas to Seattle with the following airlines, including: Frontier Airlines Alaska Airlines Hawaiian Airlines Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Las Vegas (LAS) to Seattle (SEA) and what is the distance?

  It takes around 2 hours 50 minutes to fly from Las Vegas (LAS) to Seattle (SEA).

• When is the best time to book flights from Las Vegas to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Las Vegas to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Las Vegas to Seattle?

  Based on Trip.com data in the past 4 weeks, there is 77 flight per week flying from Las Vegas to Seattle. You can check the weekly schedule for popular airlines on this route below: Hawaiian Airlines: S/M/T/W/T/F/S -- HA6139 (07:16)

• How can I find the best deals on flights from Las Vegas to Seattle?

  To find best deals on flights from Las Vegas to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Jan 30, with one-way flights priced at just $20.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Las Vegas (LAS) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Las Vegas to Seattle is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Las Vegas to Seattle on?

  After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Las Vegas to Seattle on January 30, 2026 with Frontier Airlines, with prices starting at $15.

• Which airports can I fly to for Seattle from Las Vegas?

  You can land at any one of the following hubs in Seattle, with Harry Reid International Airport to Seattle–Tacoma International Airport (LAS-SEA) is by far the most common option on this route: Seattle–Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air - Lake Union (LKE).

• Is there any time difference between Las Vegas and Seattle?

  The time difference between Seattle and Las Vegas is 0h.

• How do I change or cancel my ticket from Las Vegas to Seattle?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.