CA $96 Cheap Flights from Seattle (SEA) to Denver (DEN)

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Cheap flights from Seattle (SEA) to Denver (DEN)

Prices were available within the past 7 days and start at CA $96 for one-way flights and CA $104 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flight from Seattle to Denver (SEA - DEN) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
CA $104
Distance
1635 km
Average flight time
3 hours 38 mins

Seattle to Denver Flights

The easy way to book your flights from Seattle to Denver 

With Expedia, it’s simple to find and book flights to Denver from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are American Airlines, Qatar Airways, Condor, KLM, JAL, Icelandair, Delta Air Lines, Copa Airlines, United Airlines, Alaska Airlines, Frontier Airlines, Southwest Airlines, Air Tahiti Nui, ANA, Korean Air, WestJet, Virgin Atlantic nonstop flights to Denver Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Denver today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Denver Intl., DEN 

Sort your search results by price to find great deals on your flight from Seattle to Denver—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Denver from Seattle currently is just CA $104 rising to CA $133.  

Here are more money-saving tips: 

  • Fly in April when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Denver  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Denver from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Denver with Expedia today.

Frequently asked questions

How much is a flight from SEA to Denver Airport?
If you’re traveling between SEA and Denver Intl. Airport (DEN), round-trip journeys start from CA $104. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don’t let a good deal pass you by. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Denver Airport?
This can differ between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Sea-Tac Airport to Denver Intl. Airport (DEN) 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 far is the flight from SEA to DIA airport?
The flight distance from SeaTac to Denver is 1,650 kilometers. Bring along a snack, a drink and an interesting novel to read. Keep yourself entertained and the time will fly by.
Which airlines fly direct from SEA to Denver Intl. Airport (DEN)?
It’s easy to fly directly from Sea-Tac Airport to Denver Airport. These are the top carriers that operate nonstop services on this route:

  • United Airlines - (UA) with 147 monthly flights
  • Southwest Airlines - (WN) with 130 monthly flights
  • Alaska Airlines - (AS) with 117 monthly flights
  • Delta Air Lines - (DL) with 91 monthly flights

Are SEA to DEN flight tickets cheaper when they're purchased at the last minute?
It is possible to get a great last-minute deal from SEA to Denver Intl. Airport (DEN), but there’s no guarantee. As many airlines publish prices up to 12 months in advance, it’s worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be sure you’re always getting the latest offers.
Seattle nearby Airports

Seattle Paine Field Intl. Airport

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