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Cheap Flights from Seattle to Denver $140.6

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Cheapest Flights from Seattle to Denver (SEA to DEN)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Seattle to Denver (SEA to DEN)

Question : Best case scenario, how quickly can someone get to DEN from SEA?
Answer : The quickest direct flight is 2 hours and 25 minutes via Alaska Airlines. If you catch the 7:40 PM PST departure, you'll arrive at 11:05 PM MST (remember, there is a time change of one hour).

Question : Which airline has been on time to Denver International Airport (DEN) from Seattle-Tacoma International Airport (SEA) the most?
Answer : The current leader is Alaska Airlines with an 85% on-time rate. Spend as little time in an airport as necessary by flying with Alaska Airlines. If they are late for some reason though, the average delay time is 10-20 minutes.

Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : The cheapest day to fly in February is Wednesday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.

Question : If you're booking SEA to DEN, how many different choices of departure times do you have on a daily basis?
Answer : On average, SEA to DEN sees 12 different flight times. The average route has 31 different flight times per day, so expect fewer options than you're used to.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : Since low prices are preferred, look at February 3rd. As of January 23rd, the cheapest ticket sales are coming in 21% below the average price for this route, so you can spend that extra money on a fun experience in Denver.

Question : Do some days of the week have more flight times than others?
Answer : The day with the most departure times for this route is Monday with 67 options. Note that Saturday offers the least number of options with 47 flight times.

Question : Which airline is least likely to get you to DEN on time?
Answer : Frontier Airlines flights from SEA to DEN are delayed 44% of the time. If you're on Frontier Airlines, be sure to sign up for the delay notifications to stay up to date with your flight's status.