Cheap Flights from Seattle to Denver International in 2019

Flight information Seattle to Denver International

Cheapest roundtrip price last month


Non-stop airlines


Flights per week


Average flight time, total distance 1025 miles

2h 28min

Most popular airline last month


Denver International

1 airport

For anyone who loves the outdoors, Seattle and Denver have majestic scenery and opportunities to glory in nature. There are 1,021 miles to cover from Seattle to Denver, and on a direct service, you’ll spend about two hours and forty minutes in the air.

You have plenty of choice when you’re shopping for nonstop flights from Seattle Tacoma International (SEA) to Denver International (DEN). It’s a popular route, and Alaska, Frontier, Southwest and United Airlines all have multiple direct flights every day.

Making Your Way to Seattle-Tacoma International

Sea-Tac gets consistently delighted reviews from travelers who appreciate the clever layout and wonderful amenities on offer. Seattle-Tacoma consists of a large central terminal with four concourses and two satellite terminals linked by a rapid underground people mover.

Free WiFi is on offer throughout the airport, and you should have to scrounge for a power socket. There’s often a live concert going on somewhere, and when you’re traveling with a dog, the pet relief areas are excellent.

As you might expect from an airport in such an eco-conscious city, there are some great alternatives to driving to SEA. You can bike to the airport and know that you’ll find plenty of secure storage, including both indoor and outdoor parking and a long-term storage facility. There’s also an easy and affordable public transportation option, too. Just hop on the Link Light Rail, which runs every 7.5 to 15 minutes between the hours of 5:00am and 1:00am. Fare is just $2.75.

Arriving in Denver

Almost everyone who visits Denver feels the call of the mountains, and you should really think about renting a car. Even a simple drive along the 15-mile Mount Evans Scenic Byway is a magnificent outing. The “road into the sky” offers astonishing views as you climb in altitude, traveling through three distinct ecosystems and some of the country’s most beautiful landscapes. Once you’re up in the mountains you can abandon yourself to long days of climbing, hiking, or skiing. Even once you get back to downtown Denver, it’s likely you’ll want to spend much of your time outside.

Strolling or cycling through the city is the best way to explore the lovely neighborhoods and parks, and many of the best attractions are nature-themed. The Museum of Nature and Science is packed with fascinating exhibits, and the Denver Botanic Gardens offer 24 acres of blossoming beauty. For a taste of Denver nightlife, head to the lively Larimer Square, where restaurants, clubs, and shops populate the area’s Victorian buildings.

It couldn’t be simpler to book your flights from Seattle to Denver with Skyscanner’s free airfare comparison tool. You just enter your dates, and in minutes we’ll have done all the hard work of tracking down the cheapest tickets.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.