AED230 Cheap Flights from Seattle (SEA) to Denver (DEN)

View AED230 flight on Fri, 7 November 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Denver Intl. Airport (DEN)

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Cheap Flights from Seattle to Denver (SEA-DEN)

Prices were available within the past 7 days and start at AED230 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Seattle (SEA) to Denver (DEN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Distance
1635 km
Average flight time
3 hours 38 mins

Seattle to Denver Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Seattle to Denver offer the perfect respite. Not only does exploring Denver provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Seattle to Denver may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from SEA to DEN today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Denver are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Denver more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Denver is AED230 now!

Frequently asked questions

How long does it take to fly from Sea-Tac Airport to DIA airport?
United Airlines operates a direct flight jetting off from Seattle - Tacoma Intl. Airport (SEA) at 4:19PM and coming in to land at DIA airport at 8:02PM — a flying time of 2 hours and 43 minutes. Select your perfect seat, bring some things to keep you busy and the time will rush by.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Denver Airport last minute?
Being the spontaneous type is a rewarding way to travel around, but it isn't necessarily the smartest method to find a cheap fare. It's better to book your Sea-Tac Airport to DEN trip ahead of time instead of leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Save up that spontaneity for when you're discovering DEN!
What airline has the least delays from Sea-Tac Airport to DIA airport?
Book a seat with Delta Air Lines from Sea-Tac Airport to Denver Airport and you're more likely to touch down at the time printed on your boarding card. This carrier clinches first place on this route, with an on-time score of 89%. If your flight is delayed for some reason, the Expedia App is a great way to stay in the loop. Our helpful app will give you notifications right when you need them, from flight delays to gate changes and baggage carousel numbers.
What airports do you fly into for Denver from Seattle?
With Denver Intl. Airport (DEN), Centennial Airport (APA) and Broomfield, CO (BJC-Rocky Mountain Metropolitan) to pick from, flying from Seattle to Denver is easy. The city's busiest terminal, Denver Intl. Airport (DEN), is about 31 kilometers east of the center. As well as the price of fares, consider factors like public transportation options from the airport and the distance to your hotel before making your decision. Get your Denver trip off to a fun start by checking out Empower Field at Mile High and Coors Field.
What are the most popular departure times for flights from SEA to DIA airport?
Between 7:00 AM - 8:00 AM is when you'll find the most Delta Air Lines flights from SEA to Denver Intl. Airport (DEN). Our suggestion? Book a journey that departs sometime in the morning. With air traffic yet to build up, your chances of boarding a delay-free flight are higher.
Can I change the date of my flight from SEA to DIA airport?
Life can throw a spanner in your plans, so Expedia is here to help make amending your journey as easy as possible. To start, access your Sea-Tac Airport to DEN itinerary through the Expedia Trips portal and check the ticket rules and conditions to see if change fees apply. If you booked your fare in the last 24 hours, some airlines will let you cancel without charge and organize new flights. If you booked your fare more than 24 hours ago, contact us through our Customer Service portal to learn more about your options.

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