Cheap flights from Las Vegas to Seattle from $42
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Seattle departing on 7/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Las Vegas to Seattle
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Spirit Airlines flights from Las Vegas to Seattle
Our best Spirit Airlines deals on Las Vegas to Seattle flight tickets
Frontier flights from Las Vegas to Seattle
Our best Frontier deals on Las Vegas to Seattle flight tickets
See travel insights to Seattle from
How to get the cheapest flight ticket from Las Vegas to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Las Vegas and Seattle?
What is the cheapest month to fly to Seattle?
In general, October is the cheapest month to fly from Las Vegas to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $97. If you don’t want to visit Seattle in October, then you should wait until September to fly from Las Vegas, when ticket prices are also cheap, with an average price of $108.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Las Vegas is on a Friday. momondo users have found tickets for Friday departures for as low as $195. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Las Vegas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $583.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Las Vegas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $176 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $325. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Las Vegas Harry Reid Intl to Seattle/Tacoma Intl flight route?
Fly from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl for the best Las Vegas Harry Reid Intl - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $150 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Las Vegas for as low as $102 on momondo.
What cabin class options are available on Las Vegas Harry Reid Intl to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl?
Spirit Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl
What airlines fly to Seattle?
Spirit Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Seattle from Las Vegas according to our data. Spirit Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Las Vegas to Seattle on average per day?
As of July 2025, there are 39 flights per day flying from Las Vegas to Seattle. The most common time of day flights depart is 10:00AM, with 46% of flights taking off at noon.
How many flights depart from Las Vegas to Seattle on average per week?
276 flights are operational weekly from Las Vegas to Seattle as of July 2025. The most popular departure day for this route is Tue, with 23% of flights per week taking off on this day.
When to book flights from Las Vegas to Seattle
Cheap Las Vegas to Seattle (LAS to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Seattle
How far is Las Vegas Harry Reid Intl to Seattle/Tacoma Intl by plane?
There are 871.3 mi between Las Vegas Harry Reid Intl and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 2h 43m.
When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport?
As of July 2025, there are 6 operators available to choose from for flights from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Las Vegas to Seattle?
Based on momondo bookings for flights between Las Vegas and Seattle, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 19.35% of the total bookings. Other popular models include Airbus A320neo with 18.13%, Boeing 737-900 with 13.38%, and Airbus A321neo with 9.80%.
What is the most popular airline from Las Vegas to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Las Vegas to Seattle is Spirit Airlines (31% of total bookings). The next most popular airlines are Delta (21%), Alaska Airlines (20%), and Frontier (20%).
Best airlines flying from Las Vegas to Seattle
Compare and see reviews for airlines that fly from Las Vegas to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $38 | Free Cancellation | Rating 5.9 3,291 reviews | |||
| PriceFrom $41 | Free Cancellation | Rating 6.3 8,101 reviews | |||
| PriceFrom $97 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $103 | Free Cancellation | Rating 7.8 2,539 reviews | |||
| PriceFrom $116 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $118 | Free Cancellation | Rating 8.0 4,273 reviews |
Delta Flights From Las Vegas to Seattle
Delta is one of the most popular airlines flying from Las Vegas to Seattle, operating 21 flights/week on average for this route. A good Delta flight deal for Las Vegas to Seattle starts from $97 round-trip, up to an average price of $201. Our users have rated Delta at 8.0/10.
Alaska Airlines Flights From Las Vegas to Seattle
$116 is the best Alaska Airlines flight deal from Las Vegas to Seattle found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $211, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 10,000 user reviews) flies into Seattle from Las Vegas 23 times in an average week so prices can vary.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Las Vegas to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Las Vegas to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Las Vegas to Seattle with flexible booking policies on momondo?
All flight searches from Las Vegas to Seattle on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Las Vegas to Seattle?
Once you have performed a search for Las Vegas to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Las Vegas to Seattle right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Las Vegas to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.