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

UAUnited Airlines

Round Trip•Economy

LAX

Los Angeles International Airport

Los Angeles, United States

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$276 USD

-50%$139 USD

Verified Nov 3, 2025 at 4:37 AM

December 2025

Today

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Tue

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Sun

1$261 2$177 3$157 4$167 5$177 6$157 7$217 8$167 9$163 10$157 11$184 12$227 13$240 14$270 15$230 16$225 17$182 18$197 19$237 20$251 21$264 22$264 23$278 24$168 25$208 26$316 27$286 28$290 29$228 30$270 31$193 1 2 3 4

Extremely Rare Availability

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

Saturday, December 27th, 2025

10 round-trip options

Returning

Thu, Jan 1, 2026•5 Day Trip

$306 USD

Google Flights

Returning

Fri, Jan 2, 2026•6 Day Trip

$444 USD

Google Flights

Returning

Sat, Jan 3, 2026•7 Day Trip

$398 USD

Google Flights

Returning

Sun, Jan 4, 2026•8 Day Trip

$336 USD

Google Flights

Returning

Mon, Jan 5, 2026•9 Day Trip

$336 USD

Google Flights

Returning

Tue, Jan 6, 2026•10 Day Trip

$286 USD

Google Flights

Returning

Wed, Jan 7, 2026•11 Day Trip

$286 USD

Google Flights

Returning

Thu, Jan 8, 2026•12 Day Trip

$296 USD

Google Flights

Returning

Fri, Jan 9, 2026•13 Day Trip

$296 USD

Google Flights

Returning

Sat, Jan 10, 2026•14 Day Trip

$296 USD

Google Flights