* All fares below were last found on: Feb 23, 2019 and 2:39:50 PM.
Fares are round trip, Fares incl. all fuel surcharges, our service fees and taxes.
Displayed fares are based on historical data, are subject to change and cannot be guaranteed at the time of booking.
See all booking terms and conditions
Find the deals you want & manage your trips ... all while on the go.
Earn rewards points & other travel perks when you spend.
Get inspired, learn expert tips & add to your travel bucket list.
Get there on time,every time!
Book your flights from Seattle to Denver and save big on airfares. Denver has so much to do that it becomes difficult to choose from where to start in the Mile High City. Start your tour by exploring places like Red Rocks Amphitheatre and Park, Denver Art Museum, Denver Zoo, and Denver Museum of Nature & Science. There is something for everyone in the beautiful city of Denver.
Choose from top airlines that serve between Seattle to Denver such as United Airlines, Alaska Airlines and Frontier Airlines. Take advantage of exclusive deals on flights to Denver and save more to splurge on a vacation. Your flight from Seattle to Denver takes around one hour twenty five minutes to cover a distance of about 1,021 miles excluding the layover time. Keep your mp3 players with you to keep yourself entertained during the flight.