Flights from Denver to Seattle (DEN to SEA)

◊ Expires Feb 28, 2025. Restrictions apply.Discount applies to service fees service fee for qualified airline tickets, hotel, car rental bookings for destinations in the Western region (AZ, CO, ID, MT, NV, NM, UT, WY, AK, CA, HI, OR, WA) of the United States, Caribbean and Central America. Amount of service fees service fee discount varies: for air bookings maximum savings of $5 per person applied to bookings from one (1) traveler up to three (3) travelers; the maximum discount applied is $15; for hotel bookings maximum savings of $12.99 applied on qualified purchases; for car rental bookings maximum savings of $8 applied on qualified bookings; for vacation package bookings maximum savings of $20 applied on qualified bookings. Promo Code and Instant Savings offers can be combined up to the amount of our service fees service fee but cannot be used or combined with any other coupons, promotions or special offers. May be withdrawn at any time without notice. No cash value, void where prohibited.
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Search Cheap Flights from Denver to Seattle

Book your flights from Denver to Seattle and on airfares. Surrounded with the beautiful Cascade Mountains and Olympic mountains, Seattle is a major seaport in the US state of Washington. Decorated with beautiful museums, heritage architecture and vibrant markets, Seattle also offers the much needed dose of adventure. Visit the Discovery Park to enjoy nature trails and beautiful beaches and also appreciate magnificent architecture of Seattle City Hall.
There are numerous airlines that operate flights from Denver to Seattle including Frontier Airlines, US Airways and Super Saver Fare. It takes about two hours and fifty minutes to cover a distance of about 1021 miles on flights between Denver and Seattle excluding the layover time. While the carriers offer plenty of in-flight entertainment options, having a good company doesn’t hurt either.

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