Cheap flights from Seattle to Denver

Choose between Alaska Airlines, United Airlines, or Delta Air Lines to find the best price

Travelers usually depart from Seattle–Tacoma International, Seattle King Street railway station, Seattle Greyhound Bus Station, Seattle, WA - Poly Clinic, or Seattle, WA-Harborview Med when they travel from Seattle to Denver. Book your trip to arrive at Denver International, Denver Union Station, or Denver Greyhound station. The distance between Seattle and Denver is 1646 km. The most popular airlines for this route are Alaska Airlines, United Airlines, Delta Air Lines, Southwest Airlines, and Frontier Airlines. Seattle and Denver have 213 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights38322451-2444

Fly direct with

Frontier Airlines on Mondays, Thursdays, Fridays, and Sundays.

Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Delta Air Lines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Southwest Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Seattle to Denver

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
Alaska AirlinesASAASYesUnknownNo
United AirlinesUALUAYesUnknownNo
Delta Air LinesDALDLYesUnknownNo
Southwest AirlinesSWAWNNoUnknownNo
Frontier AirlinesFFTF9NoUnknownNo

Frequently asked questions

How long does it take to travel from Seattle to Denver?

A one-way nonstop (direct) flight between Seattle and Denver takes around 2.6 hours.

What is the flight distance between Seattle and Denver?

The flight distance between Seattle and Denver is 1646 km.

What airlines offer nonstop (direct) flights between Seattle and Denver?

Several carriers operate flights between Seattle and Denver. Airlines offering nonstop (direct) flights include United Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, Alaska Airlines.

What are the most popular routes to and from Seattle?

Travelers frequently search for route combinations, such as Seattle and McCarran International, Miami International, Denver International, Hartsfield–Jackson Atlanta International, San Francisco International, Logan International, George Bush Intercontinental, Phoenix Sky Harbor International, Baltimore–Washington International, O Hare International, Vancouver International.

What are the most popular routes to and from Denver?

Travelers frequently search for route combinations, such as Denver and McCarran International, Miami International, Fort Lauderdale–Hollywood International, Dallas/Fort Worth International, San Francisco International, Phoenix Sky Harbor International, Minneapolis–Saint Paul International, O Hare International, Salt Lake City International, Philadelphia International, Detroit Metropolitan.

Which airports are there in Seattle?

Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Kenmore Air Harbor Seaplane Base, Boeing Field.

What airports are near Seattle?

The main airport in Seattle is Seattle–Tacoma International. It is also served by Portland International, Vancouver International, Bellingham International, Paine Field Everett, Pangborn Memorial, Yakima Air Terminal, Vancouver Harbour Flight Centre, Victoria Inner Harbour SPB, Abbotsford International, Friday Harbor Airport.

What airports are near Denver?

The main airport in Denver is Denver International. It is also served by Colorado Springs, Laramie Regional, Pueblo Memorial, Eagle County Regional, Cheyenne Regional.

What buses and trains depart from Seattle?

A number of bus and train companies depart from Seattle, including Greyhound.

Is it possible to combine flights, buses, and trains in one itinerary when traveling between Seattle and Denver?

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Which airlines fly between Seattle and Denver?

When's the best time to travel between Seattle and Denver?

What flights operate between Seattle and Denver?

How many airports are there near Seattle?

How many airports are there near Denver?

Is it possible to reach Seattle by bus or train?

What time do nonstop (direct) flights between Seattle and Denver depart?

What time do nonstop (direct) flights between Seattle and Denver arrive?

What time do flights between Seattle and Denver depart?

What time do flights between Seattle and Denver arrive?

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