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

$276 USD

-50%$139 USD

Verified Nov 3, 2025 at 4:37 AM

December 2025

Today

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Sun

1$284 2$195 3$167 4$167 5$177 6$177 7$217 8$167 9$167 10$157 11$248 12$254 13$177 14$237 15$187 16$177 17$177 18$267 19$376 20$429 21$340 22$294 23$356 24$210 25$236 26$370 27$469 28$389 29$285 30$260 31$168 1 2 3 4

Extremely Rare Availability

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

Sunday, December 21st, 2025

10 round-trip options

Returning

Fri, Dec 26, 2025•5 Day Trip

$465 USD

Google Flights

Returning

Sat, Dec 27, 2025•6 Day Trip

$426 USD

Google Flights

Returning

Sun, Dec 28, 2025•7 Day Trip

$430 USD

Google Flights

Returning

Mon, Dec 29, 2025•8 Day Trip

$377 USD

Google Flights

Returning

Tue, Dec 30, 2025•9 Day Trip

$436 USD

Google Flights

Returning

Wed, Dec 31, 2025•10 Day Trip

$340 USD

Google Flights

Returning

Thu, Jan 1, 2026•11 Day Trip

$388 USD

Google Flights

Returning

Fri, Jan 2, 2026•12 Day Trip

$447 USD

Google Flights

Returning

Sat, Jan 3, 2026•13 Day Trip

$395 USD

Google Flights

Returning

Sun, Jan 4, 2026•14 Day Trip

$584 USD

Google Flights