SEA to EWR from $299 in economy

UAUnited Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

EWR

Newark Liberty Airport

Newark, United States

$378 USD

-21%$299 USD

Verified 14 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$473 1$328 2$299 3$299 4$299 5$299 6$299 7$299 8$309 9$319 10$387 11$447 12$408 13$464 14$408 15$418 16$474 17$586 18$715 19$474 20$474 21$443 22$424 23$343 24$309 25$309 26$414 27$398 28$366 29$299 30$309 31$309 1$366 2$471 3$309

Good Availability

54% of dates checked are available within 10% of the lowest price

Sunday, December 20th, 2026

7 round-trip options

Returning

Fri, Dec 25, 2026•5 Day Trip

$474 USD

Google Flights

Returning

Sat, Dec 26, 2026•6 Day Trip

$592 USD

Google Flights

Returning

Mon, Dec 28, 2026•8 Day Trip

$601 USD

Google Flights

Returning

Tue, Dec 29, 2026•9 Day Trip

$554 USD

Google Flights

Returning

Wed, Dec 30, 2026•10 Day Trip

$481 USD

Google Flights

Returning

Thu, Dec 31, 2026•11 Day Trip

$481 USD

Google Flights

Returning

Sat, Jan 2, 2027•13 Day Trip

$603 USD

Google Flights

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

Seattle–Tacoma International Airport

Newark Liberty Airport

December 2026

Sunday, December 20th, 2026