SEA to PIT from $170 in economy

WNSouthwest Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

PIT

Pittsburgh International Airport

Pittsburgh, United States

$328 USD

-48%$170 USD

Verified about 11 hours ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$375 1$227 2$212 3$242 4$262 5$248 6$284 7$242 8$212 9$229 10$257 11$267 12$302 13$343 14$302 15$276 16$276 17$343 18$424 19$423 20$423 21$364 22$337 23$405 24$311 25$329 26$410 27$428 28$405 29$325 30$311 31$337 1$341 2$410 3$410

Extremely Rare Availability

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

Friday, December 18th, 2026

8 round-trip options

Returning

Wed, Dec 23, 2026•5 Day Trip

$517 USD

Google Flights

Returning

Fri, Dec 25, 2026•7 Day Trip

$485 USD

Google Flights

Returning

Sat, Dec 26, 2026•8 Day Trip

$529 USD

Google Flights

Returning

Sun, Dec 27, 2026•9 Day Trip

$582 USD

Google Flights

Returning

Mon, Dec 28, 2026•10 Day Trip

$517 USD

Google Flights

Returning

Tue, Dec 29, 2026•11 Day Trip

$424 USD

Google Flights

Returning

Thu, Dec 31, 2026•13 Day Trip

$502 USD

Google Flights

Returning

Fri, Jan 1, 2027•14 Day Trip

$513 USD

Google Flights

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

Seattle–Tacoma International Airport

Pittsburgh International Airport

December 2026

Friday, December 18th, 2026