$40 Cheap Flights from Denver to Seattle

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Find The Best Dates To Fly from Denver Intl. to Seattle - Tacoma Intl.

Amazing DEN to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $79 round trip and $40 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for DEN to SEA

CarrierFlightDepart DENArrive SEATue
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Best Seattle - Tacoma Intl. Flight and Hotel Packages

Seattle - Tacoma Intl. flight + hotel packages - economy flights

The Oxford Seattle-Downtown by Kasa
Palihotel Seattle
The Edgewater - A Noble House Hotel
Best Western Plus Renton Inn
Hyatt House Seattle/Downtown
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FAQs about flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA)

Can I catch a flight from Denver, CO Airport (DEN-Denver Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) right now?

Make sure you check out the Covid-19 Travel Advisor to see if there are any current travel advice reports and quarantine requirements in place in Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) when jet-setting from Denver, CO Airport (DEN-Denver Intl.).

Are there direct flights from Denver, CO Airport (DEN-Denver Intl.) to Sea-Tac Airport?

Kick off your getaway calm and relaxed and head straight to SEA from DEN. Alaska Airlines and United Airlines are among the airlines that offer direct services on this route.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.

How long is the flight from Denver Intl. Airport (DEN) to SEA?

Traveling from DIA airport to Seattle - Tacoma Intl. Airport (SEA) is a piece of cake as the flight normally takes 2 hours and 56 minutes. With such a short flight time, it's highly likely that you'll hop off the plane feeling as energetic as when you boarded.

What is the flight distance from Denver Airport to SEA?

There's a flight distance of 1,025 mi between DIA airport and Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). This is classified as a medium-haul flight. You'll have lots of time to enjoy the in-flight entertainment and fit in a little sleep if you want to feel fresh on landing.

What airlines fly from Denver Intl. Airport (DEN) to SEA?

If you're planning to travel from Denver to Seattle, there is a good range of airlines that'll fly you there. Reserve a seat with these airlines that fly direct from Denver Airport to Sea-Tac Airport:

  • Alaska Airlines - (AS) with 128 flights every month
  • United Airlines - (UA) with 125 flights every month
  • Delta - (DL) with 158 flights every month
  • Frontier Airlines - (F9) with 26 flights every month
What airlines have practices regarding COVID-19 in place and use social distancing?

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with Alaska Airlines, Delta or Southwest Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

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 Travelocity 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 our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Denver Intl. to Seattle - Tacoma Intl. Flight FAQ

Traveling From Denver Intl.
Traveling To Seattle - Tacoma Intl.
Shortest Flight Time 2 hours 56 mins
Earliest Departure Time 6:05AM MDT
Latest Departure Time 9:30PM MDT
Lowest Flight Price $79

Route Info

Flight path for flights from Denver International Airport to Seattle-Tacoma International Airport

Distance:
1,028.00 miles

Airlines & Aircraft Used on DEN to SEA Flight Routes

Airline Carrier
Aircraft
United Airlines
Aerospatiale/Alenia ATR 42-300 / 320

Discover our best flights from Denver DEN to Seattle SEA. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Denver DEN to Seattle SEA at the right price  

Airfares to Seattle SEA from Denver DEN currently cost between $79 and $99. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Denver DEN to Seattle SEA 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Denver DEN to Seattle SEA on Travelocity starting at $40. Prices and availability subject to change. Additional terms may apply. 

 

Get to Seattle SEA from Denver DEN quicker with direct flights. 

Get to Seattle faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SEA from DEN to take around 2 hour(s) 56 min(s).  

 

Find our cheapest airfares for flights from Denver DEN to Seattle SEA

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SEA from DEN. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Denver DEN to Seattle SEA today 

If you’re flexible about when you travel, October is usually the cheapest month to fly from Denver DEN to Seattle SEA. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Seattle SEA from Denver DEN 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SEA from DEN have this option.  

 

Travel with confidence when you book flights to Seattle SEA from Denver DEN with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.