The cheapest times to fly from LAS to SEA are
- January 8th to February 18th (except the weeks of January 15th and February 5th)
- April 23rd to May 6th
- May 28th to July 15th (except the weeks of June 18th and July 2nd)
- August 13th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LAS to SEA is late January and early February. Prices can be as high as $684 for Sunday flights during early to mid May, or as low as $117 for Tuesday flights around late January and early February.
When to Fly to Seattle
Flying from Las Vegas, NV (LAS) to Seattle, WA (SEA) will usually cost between $118 to $281 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $145. Due to high demand the most expensive time to fly is early to mid May, with an average price of $306. Planning your trip to low-cost times can easily save you $162 on economy flights and even more on first-class flights. Generally, any price below $175 can be considered a good price for a round-trip LAS to SEA flight.
See below for a graph of average weekly prices for the LAS to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the LAS to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Las Vegas. The average price per mile (for a direct flight) is $0.13, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $107 (43%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $142. Return trip prices are from the SEA to LAS flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from LAS to SEA can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 33 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from LAS to SEA? We’ve got answers.
Which airlines fly this route?
You can find 14 major airlines flying this route most often: Air Europa, Alaska, American, China Eastern, Delta, Emirates, Fiji Airways, Frontier, JetBlue, Singapore Airlines, Southwest, Spirit, Sun Country Airlines, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to McCarran International Airport?
The distance between the two airports is roughly 867 miles or 1395 kilometers.
How long does it take to fly from LAS to SEA?
The real-world flight time for a nonstop LAS to SEA flight is about 2 hour 33 minutes.
How many flights go between Las Vegas, NV and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 79 available flights from LAS to SEA.
Airport Location Info
|Origination airport name||McCarran International Airport|
|City||Las Vegas, NV|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from LAS to SEA tend to depart as late as the average flight. According to our recently updated data, 25% of flights departed 5 or more minutes late, and 33% of flights left 5 or more minutes early. On average you can expect to leave SEA heading for LAS about 9 minutes late. This does significantly impact arrival time, as the average landing time in Seattle, WA is about 1 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Southwest: 11 minutes late
- Delta: 7 minutes late
- Alaska: 11 minutes late
- Spirit: 8 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.