$74 Cheap Flights from Seattle (SEA) to Denver (DEN)

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Cheap Flights from Seattle - Tacoma Intl. to Denver Intl.

Prices were available within the past 7 days and starts at $74 for one-way flights and $134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
United
Frontier Airlines
Frontier Airlines
Frontier Airlines
United
United
Spirit Airlines
Delta
United
Frontier Airlines
Frontier Airlines
Delta
Frontier Airlines
Frontier Airlines
United
Alaska Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flight from Seattle to Denver route information
Origin AirportSeattle - Tacoma Intl.
Destination AirportDenver Intl.
Airlines ServingAlaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Flight Price$134
Distance1022 mi

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 $74 now!

Frequently asked questions

How much is a flight from Sea-Tac Airport to DEN?
Pack your bags, because round-trip journeys from SEA to Denver Airport start from $134. That’s based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Denver Airport?
Each air carrier has different terms and conditions. If you decide to cancel your vacation, visit our Customer Service Portal.
How do I find cheap flights from SEA to DIA airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Sea-Tac Airport to Denver Intl. Airport (DEN) flights, you’ll see a “no change fees” filter for you to select.
How many hours is the flight from Sea-Tac Airport to DEN?
It only takes roughly 2 hours and 43 minutes to fly from Seattle - Tacoma Intl. Airport (SEA) to DEN — perfect for a nap. You’ll be starting your descent into Denver by the time you open your eyes.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to DIA airport?
The flying distance between Seattle - Tacoma Intl. Airport (SEA) (SEA) and Denver Airport (DEN) is 1,025 mi (1,650 km). Work your way through your travel song playlist or get stuck into a book and the trip will fly by.
Which airlines fly direct from SEA to Denver Airport?
You have plenty of options when flying from Seattle - Tacoma Intl. Airport (SEA) to DEN. Lock in your ticket with one of these sought-after carriers:

  • United Airlines - (UA) with 152 monthly flights
  • Southwest Airlines - (WN) with 130 monthly flights
  • Alaska Airlines - (AS) with 126 monthly flights
  • Delta Air Lines - (DL) with 91 monthly flights

Are SEA to DIA airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so it’s no sure thing. While last-minute flight deals between Sea-Tac Airport and Denver Intl. Airport (DEN) are possible, it also makes sense to monitor prices well before you fly. In fact, some carriers publish their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest airfare bargains around, so keep checking back and be ready to pounce when the price dips.
Can I fly from Sea-Tac Airport to Denver Intl. Airport (DEN) right now?
To see what travel restrictions and quarantine requirements are in place for different citizens flying from SEA to Denver Intl. Airport (DEN) please visit our COVID 19 travel advisor portal link
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