PIT to SEA from $170 in economy

WNSouthwest Airlines

Round Trip•Economy

PIT

Pittsburgh International Airport

Pittsburgh, United States

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$334 USD

-49%$170 USD

Verified about 10 hours ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$359 1$295 2$212 3$247 4$267 5$248 6$290 7$257 8$222 9$222 10$284 11$270 12$311 13$337 14$312 15$275 16$283 17$337 18$423 19$458 20$440 21$343 22$329 23$423 24$391 25$391 26$458 27$488 28$423 29$329 30$364 31$408 1$419 2$428 3$458

Extremely Rare Availability

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

Monday, December 7th, 2026

9 round-trip options

Returning

Sat, Dec 12, 2026•5 Day Trip

$283 USD

Google Flights

Returning

Sun, Dec 13, 2026•6 Day Trip

$333 USD

Google Flights

Returning

Mon, Dec 14, 2026•7 Day Trip

$292 USD

Google Flights

Returning

Tue, Dec 15, 2026•8 Day Trip

$257 USD

Google Flights

Returning

Wed, Dec 16, 2026•9 Day Trip

$257 USD

Google Flights

Returning

Thu, Dec 17, 2026•10 Day Trip

$325 USD

Google Flights

Returning

Fri, Dec 18, 2026•11 Day Trip

$405 USD

Google Flights

Returning

Sun, Dec 20, 2026•13 Day Trip

$405 USD

Google Flights

Returning

Mon, Dec 21, 2026•14 Day Trip

$346 USD

Google Flights

Pittsburgh (PIT) to Seattle / Tacoma (SEA) flight deal in economy from $170

Pittsburgh International Airport

Seattle–Tacoma International Airport

December 2026

Monday, December 7th, 2026