Boston (BOS) to Seattle / Tacoma (SEA) flight deal from $154 USD in economy class – flightdeals.net

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Delta Air Lines

DLDelta Air Lines

One Way•Economy

Logan International Airport

Boston, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$207 USD

-26%$154 USD

Verified Dec 1, 2025 at 3:47 AM

December 2025

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1$430 2$420 3$420 4$420 5$420 6$420 7$329 8$329 9$329 10$329 11$329 12$329 13$329 14$234 15$234 16$234 17$290 18$319 19$459 20$459 21$459 22$459 23$559 24$449 25$369 26$559 27$699 28$689 29$559 30$459 31$279 1$279 2$379 3$379 4$189

Good Availability

59% of dates checked are available within 10% of the lowest price

Friday, December 19th, 2025

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