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The cheapest times to fly from LAX to SEA are

  • January 8th to February 4th
  • May 21st to June 10th
  • July 2nd to July 15th
  • 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 LAX to SEA is late May to early June. Prices can be as high as $393 for Sunday flights during mid December, or as low as $137 for Tuesday flights around late May to early June.

 

When to Fly to Seattle

Flying from Los Angeles, CA (LAX) to Seattle, WA (SEA) will usually cost between $137 to $260 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May to early June with an average ticket price of $154. Due to high demand the most expensive time to fly is mid December, with an average price of $258. Planning your trip to low-cost times can easily save you $103 on economy flights and even more on first-class flights. Generally, any price below $179 can be considered a good price for a round-trip LAX to SEA flight.

See below for a graph of average weekly prices for the LAX to SEA route. All prices are for round-trip tickets in USD.

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LAX to SEA Flight Prices

Compared to other flights, the LAX to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Los Angeles. The average price per mile (for a direct flight) is $0.12, 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 $56 (26%) 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 $158. Return trip prices are from the SEA to LAX flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

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Departure Day Prices

Return Trip Prices by Day

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Return Day Prices

 

Nonstop Flights and Layovers

Travelers looking to fly from LAX 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 42 minutes may be realistic.

 

Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from LAX to SEA while comparing.

Destination alternative #1: Portland International Airport (PDX) in Portland, OR

  • 129 miles (208 km) away from SEA
  • Usually 11.73% less expensive than SEA
  • Nonstop flights available

See LAX to PDX flights

 

Flight Questions Answered

Still have questions about flying from LAX to SEA? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Alaska, American, China Eastern, Delta, Emirates, Frontier, 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 Los Angeles International Airport?

The distance between the two airports is roughly 955 miles or 1537 kilometers.

How long does it take to fly from LAX to SEA?

The real-world flight time for a nonstop LAX to SEA flight is about 2 hour 42 minutes.

How many flights go between Los Angeles, CA and Seattle, WA?

It depends on the day of the week and the date, but a typical day might have around 56 available flights from LAX to SEA.

 

Airport Location Info

 

Departing Airport

Origination codeLAX
Origination airport nameLos Angeles International Airport
CityLos Angeles, CA
Countrythe United States
Latitude33.9
Longitude-118.4

Return Airport

Destination codeSEA
Destination airport nameSeattle/Tacoma International Airport
CitySeattle, WA
Countrythe United States
Latitude47.5
Longitude-122.3

 

Late and Early Flight Data

Flights from LAX to SEA tend to depart late far less frequently than the average flight. According to our recently updated data, 16% of flights departed 5 or more minutes late, and 28% of flights left 5 or more minutes early. On average you can expect to leave SEA heading for LAX about 3 minutes late. This does not significantly impact arrival time, as the average landing time in Seattle, WA is about 5 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Delta: 4 minutes late
  • SkyWest: 4 minutes early
  • United: 1 minutes early
  • Alaska: 2 minutes late
  • Some airlines not reporting

 

Other Resources

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.