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 11th, 2026

8 round-trip options

Returning

Wed, Dec 16, 2026•5 Day Trip

$267 USD

Google Flights

Returning

Fri, Dec 18, 2026•7 Day Trip

$417 USD

Google Flights

Returning

Sat, Dec 19, 2026•8 Day Trip

$452 USD

Google Flights

Returning

Sun, Dec 20, 2026•9 Day Trip

$434 USD

Google Flights

Returning

Mon, Dec 21, 2026•10 Day Trip

$373 USD

Google Flights

Returning

Tue, Dec 22, 2026•11 Day Trip

$316 USD

Google Flights

Returning

Thu, Dec 24, 2026•13 Day Trip

$395 USD

Google Flights

Returning

Fri, Dec 25, 2026•14 Day Trip

$385 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 11th, 2026