Flights from Seattle (SEA) to Denver (DEN)

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Seattle to Denver Flight Information

Find the Cheapest Flights from Seattle (SEA) to Denver (DEN)

Work hard, travel harder! Wotif brings you the cheapest Seattle to Denver flights, making it possible to have a five star holiday without that five star price tag. Browse and compare our top SEA to DEN routes and airport options. So, go ahead and treat yourself, your sweetheart, or the kids to an unforgettable holiday this year.

Seattle to Denver Information

Traveling From
Seattle - Tacoma Intl.
Origin Airport
Seattle
Origin Airport IATA Code
SEA
Traveling To
Denver Intl.
Destination Airport
Denver
Destination Airport IATA Code
DEN
Number of Airlines Serving
19
Average Flight Time
4 hours 46 mins
Direct Flight Time
4 hours 35 mins
Flight Price

Frequently asked questions

How long is the flight from Seattle - Tacoma Intl. Airport (SEA) to DIA airport?
You'll barely finish a couple of chapters in your novel before touching down at DIA airport. The average flight time from Sea-Tac Airport is a cruisy 2 hours and 42 minutes.
What airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to DEN?
If you don't do drama on your holidays, you'll be pleased to hear you can go directly from Seattle - Tacoma Intl. Airport (SEA) to Denver Intl. Airport (DEN) with several airlines. Be sure to keep an eye out for awesome deals with United Airlines and Southwest Airlines.
How many flights are there from Sea-Tac Airport to Denver Airport?
At least 16 flights operate daily between Seattle - Tacoma Intl. Airport (SEA) and Denver Airport. So c'mon — it's time to book that seat and discover the best bits of Denver.
What are the cheapest days to fly?
Here's an insider tip: Monday is typically the cheapest day to fly! Looking at flight demand on Wotif in 2021, we found that flights departing on a Monday generally had the lowest average price, closely followed by flights on a Saturday. You might want to think twice about flying on a Thursday though; generally, our data showed that it had the highest average ticket price.
What is the best day to buy a plane ticket?
Guess what? It turns out that early in the week is the best time to score the cheapest plane tickets. Looking at flight demand on Wotif in 2021, we found that flights purchased on a Monday had the lowest airfares on average. Booking your plane ticket on the weekend also seems to score pretty good deals. However, airfares purchased on a Friday generally have a higher than average ticket value, so you might want to prepare your budget if you're booking on that day.
What is the cheapest month to fly?
When comparing airfares booked through Wotif in 2021, our data shows February is one of the cheapest months to fly. On the other hand, the month of December can be one of the most expensive times to travel, with the highest average ticket price, so it's best to get in early if December is your preferred travel month.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Wotif up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to Wotif's 2021 flight demand trends, you can bag a bargain with some of the cheapest airfares appearing just 1 week prior to travel.*According to flight demand on Wotif.com from January to December 2021. Savings are subject to change and may vary depending on selections made.
Address:
8500 Pena Boulevard
Denver CO, 80249-6340
United States
IATA code:
DEN
Longitude:
-104.673098
Latitude:
39.851382
Time zone:
America/Denver
Address:
Seattle WA, 98158
United States
IATA code:
SEA
Longitude:
-122.301732
Latitude:
47.443839
Time zone:
America/Los_Angeles

Seattle to Denver Flight Deals from

Considering a quick trip to Denver, but not sure which is the best route for you? Well, you’re in luck! Wotif has done the hard work, so all you need to do is check out these flights from SEA to DEN. With heaps of cheap fares from Seattle, we guarantee you’ll be arriving to your holiday destination in style without emptying your bank account in the process.

It’s easy to book flights to Denver from Seattle  

For a huge choice of flights, simply enter your travel dates and hit search and we’ll hunt out fantastic deals on one-way, return and multi-city airfares to Denver from Seattle from different airlines. If you click the ‘direct flights’ box, you see flights that’ll get you to Denver in just 4 hour(s) and 35 mins, too.   

Snap up great deals on flights to Denver from Seattle 

Choose from 47 flights a day on average, with prices starting at and rising to depending on the cabin class, travel dates, and airline carrier. And if you’re up for a last-minute getaway, you can get great deals on flights from Seattle to Denver today!  

Find cheap airfares to Denver from Seattle 

Here are our insider tips for bagging a flight bargain: 

  • Look for midweek flights and late night, early morning arrival and departure times
  • Check out other airports near Seattle and Denver
  • Avoid peak season (prices tend to be lower in )
  • Be flexible with your travel dates and you can usually get cheaper options  

Reasons to book your flights to Denver from Seattle with Wotif

Wotif is a super-easy way to find the best flight for you to Denver. Get more bang for your buck on flight and hotel or car rental combos and download the free Wotif app to tap into exclusive deals. Book now with Wotif and have a great flight!

 

Great places to stay after flight from Seattle to Denver

The Westin Denver International Airport

The Westin Denver International Airport

4.5 out of 5
8300 Pena Boulevard, Denver, CO
The price is AU$559 per night from 4 Oct to 5 Oct
AU$559
4 Oct - 5 Oct
includes taxes & fees
Stay at this 4.5-star luxury hotel in Denver. Enjoy 2 bars/lounges, breakfast (surcharge), and room service. Our guests praise the helpful staff and the clean ...
9/10 Wonderful! (1,587 reviews)
"Made getting a very early flight at the Denver Airport much easier."

Reviewed on 13 Sept 2025

The Westin Denver International Airport
Quality Inn & Suites Denver International Airport

Quality Inn & Suites Denver International Airport

2.5 out of 5
6890 Tower Rd, Denver, CO
The price is AU$149 per night from 1 Oct to 2 Oct
AU$149
1 Oct - 2 Oct
includes taxes & fees
Book a stay at this business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (2,756 reviews)
"A local brewery in a walking distance!"

Reviewed on 18 Sept 2025

Quality Inn & Suites Denver International Airport
Spark by Hilton Denver International Airport

Spark by Hilton Denver International Airport

3.5 out of 5
7020 Tower Rd, Denver, CO
The price is AU$154 per night from 4 Oct to 5 Oct
AU$154
4 Oct - 5 Oct
includes taxes & fees
Stay at this 3.5-star business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and parking (surcharge). Our guests praise the helpful staff and the ...
8.4/10 Very Good! (327 reviews)
Great stay
"Very friendly staff, newer clean hotel within walking distance of a good restaurant. Easy shuttle to/from airport"

Reviewed on 15 Sept 2025

Spark by Hilton Denver International Airport
See all 410 properties in Denver Intl.
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Flight to DEN

Other Flight Destinations

^Savings based on all package bookings made with Flight + Hotel on Wotif.com from , as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.