Seattle / Tacoma (SEA) to Denver (DEN) flight deal from $45 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Denver International Airport

Denver, United States

$111 USD

-59%$45 USD

Verified Oct 6, 2025 at 5:54 AM

November 2025

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27$55 28$55 29$55 30$55 31$55 1$55 2$55 3$55 4$55 5$45 6$45 7$95 8$45 9$45 10$45 11$45 12$45 13$45 14$45 15$45 16$45 17$45 18$45 19$45 20$119 21$119 22$119 23$119 24$109 25$119 26$119 27$109 28$119 29$214 30$119

Rare Availability

9% of dates checked are available within 10% of the lowest price

Monday, November 24th, 2025

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