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Wondering how long to fly from Seattle to Denver? A nonstop flight from Seattle to Denver generally takes around 2 hrs 30 mins to 2 hrs 50 mins. The exact journey time may vary depending on weather, wind conditions, flight route, and aircraft type.
Flights from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN) are usually quickest when travelling nonstop. One-stop flights through cities such as Salt Lake City, Boise, or Portland may take around 4 hrs 30 mins to 7 hrs or more.
Seattle and Denver are not in the same time zone. Denver follows Mountain Time and is usually 1 hour ahead of Seattle.
For the shortest journey, select a nonstop Seattle to Denver flight and compare fares, schedules, baggage policies, and airline services.
The average Seattle to Denver flight time depends on your departure airport, airline, aircraft type, weather, wind direction, and flight path. Most nonstop flights from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN) take around 2 hr 35 mins to 2 hr 50 mins.
Denver International Airport (DEN) is the main airport for travelers flying to Denver. Seattle-Tacoma International Airport (SEA) generally offers the widest choice of nonstop flights. Paine Field Airport (PAE) may be considered by travelers based in Everett or north of Seattle, but it is an optional departure airport with limited route availability. Nonstop service from PAE to Denver may not be available, so travelers should check current schedules before booking.
| Departure Airport | Arrival Airport | Estimated Flight Time | Travel Tip |
|---|---|---|---|
| Seattle-Tacoma International Airport (SEA) | Denver International Airport (DEN) | Around 2 hr 35 mins–2 hr 50 mins nonstop | Best option for most travelers, with regular nonstop flights and the widest choice of schedules. |
| Paine Field Airport (PAE) | Denver International Airport (DEN) | Usually 5 hr or more when a connection is required | Optional airport for travelers based in Everett or north of Seattle. Flight choices are limited, and nonstop service may not be available. |
| Seattle-Tacoma International Airport (SEA) | Colorado Springs Airport (COS) | Usually around 4 hr 45 mins–7 hr+ with one or more stops | Optional arrival airport for travelers visiting Colorado Springs or southern Colorado. It is not a Denver airport and may add ground travel if Denver is your final destination. |
For the quickest journey, flights from Seattle-Tacoma International Airport (SEA) to Denver International Airport (DEN) are generally the most practical choice. Paine Field Airport (PAE) is an optional departure airport with fewer flight choices, while Colorado Springs Airport (COS) should only be considered when it better suits your final destination.
The average flight time from Seattle to Denver is around 2 hours 42 minutes, connecting Seattle with Denver. Covering approximately 1,021 miles (1,643 kilometers), this route offers a manageable journey for travelers.
Travelers can choose direct flights or connecting options via major hubs, which may extend the Seattle to Denver flight duration to about 5 to 7 hours. Most flights depart from Seattle-Tacoma International Airport (SEA) and arrive at Denver International Airport (DEN).
Denver is 1 hour ahead of Seattle. This time difference helps travelers plan their flights and adjust their schedules accordingly.
With convenient connecting flights and manageable time differences, traveling from Seattle to Denver is accessible and straightforward. Whether you're visiting for business, leisure, or adventure, knowing the flight duration and time zone helps ensure a smooth journey.
Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below. Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Seattle Flight Times.
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