Seattle / Tacoma (SEA) to Los Angeles (LAX) flight deal from $139 USD in economy class

UAUnited Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

LAX

Los Angeles International Airport

Los Angeles, United States

$267 USD

-48%$139 USD

Verified Oct 30, 2025 at 11:46 PM

December 2025

Today

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Sun

1$277 2$167 3$167 4$167 5$177 6$157 7$167 8$167 9$167 10$157 11$194 12$196 13$177 14$215 15$187 16$177 17$177 18$293 19$340 20$315 21$317 22$327 23$345 24$200 25$218 26$340 27$380 28$380 29$278 30$270 31$168 1 2 3 4

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Saturday, December 20th, 2025

10 round-trip options

Returning

Thu, Dec 25, 2025•5 Day Trip

$315 USD

Google Flights

Returning

Fri, Dec 26, 2025•6 Day Trip

$443 USD

Google Flights

Returning

Sat, Dec 27, 2025•7 Day Trip

$433 USD

Google Flights

Returning

Sun, Dec 28, 2025•8 Day Trip

$458 USD

Google Flights

Returning

Mon, Dec 29, 2025•9 Day Trip

$368 USD

Google Flights

Returning

Tue, Dec 30, 2025•10 Day Trip

$348 USD

Google Flights

Returning

Wed, Dec 31, 2025•11 Day Trip

$348 USD

Google Flights

Returning

Thu, Jan 1, 2026•12 Day Trip

$363 USD

Google Flights

Returning

Fri, Jan 2, 2026•13 Day Trip

$433 USD

Google Flights

Returning

Sat, Jan 3, 2026•14 Day Trip

$402 USD

Google Flights