EWR to SEA from $299 in economy

UAUnited Airlines

Round Trip•Economy

EWR

Newark Liberty Airport

Newark, United States

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$379 USD

-21%$299 USD

Verified 13 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$677 1$487 2$411 3$414 4$299 5$299 6$333 7$299 8$299 9$299 10$338 11$309 12$309 13$418 14$319 15$343 16$417 17$543 18$612 19$627 20$508 21$508 22$612 23$464 24$487 25$408 26$526 27$562 28$535 29$487 30$414 31$414 1$464 2$537 3$467

Good Availability

55% of dates checked are available within 10% of the lowest price

Wednesday, December 16th, 2026

10 round-trip options

Returning

Mon, Dec 21, 2026•5 Day Trip

$447 USD

Google Flights

Returning

Tue, Dec 22, 2026•6 Day Trip

$532 USD

Google Flights

Returning

Wed, Dec 23, 2026•7 Day Trip

$461 USD

Google Flights

Returning

Thu, Dec 24, 2026•8 Day Trip

$427 USD

Google Flights

Returning

Fri, Dec 25, 2026•9 Day Trip

$427 USD

Google Flights

Returning

Sat, Dec 26, 2026•10 Day Trip

$532 USD

Google Flights

Returning

Sun, Dec 27, 2026•11 Day Trip

$516 USD

Google Flights

Returning

Mon, Dec 28, 2026•12 Day Trip

$484 USD

Google Flights

Returning

Tue, Dec 29, 2026•13 Day Trip

$417 USD

Google Flights

Returning

Wed, Dec 30, 2026•14 Day Trip

$427 USD

Google Flights

Newark (EWR) to Seattle / Tacoma (SEA) flight deal in economy from $299

Newark Liberty Airport

Seattle–Tacoma International Airport

December 2026

Wednesday, December 16th, 2026