$51 Cheap flights from Denver Intl. to Seattle - Tacoma Intl. (DEN to SEA)

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

Compare Flight Prices from Denver to Seattle

Affordable Airfare Tickets from DEN to SEA Airport

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $100 round trip and $51 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Apr 30 - Tue, May 6
DEN
Denver
SEA
Seattle
$100 Roundtrip, just found
$100
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 30 from Denver to Seattle, returning Tue, May 6, priced at $100 just found
Tue, May 6 - Sat, May 10
DEN
Denver
SEA
Seattle
$101 Roundtrip, just found
$101
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 6 from Denver to Seattle, returning Sat, May 10, priced at $101 just found
Sat, May 17 - Sat, May 24
DEN
Denver
SEA
Seattle
$125 Roundtrip, found 19 hours ago
$125
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Sat, May 17 from Denver to Seattle, returning Sat, May 24, priced at $125 found 19 hours ago
Fri, May 9 - Tue, May 13
DEN
Denver
SEA
Seattle
$145 Roundtrip, just found
$145
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 9 from Denver to Seattle, returning Tue, May 13, priced at $145 just found
Fri, May 9 - Tue, May 13
DEN
Denver
SEA
Seattle
$146 Roundtrip, just found
$146
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 9 from Denver to Seattle, returning Tue, May 13, priced at $146 just found
Sat, May 17 - Mon, May 26
DEN
Denver
SEA
Seattle
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 17 from Denver to Seattle, returning Mon, May 26, priced at $147 found 1 day ago
Sat, Jun 21 - Sat, Jun 28
DEN
Denver
SEA
Seattle
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jun 21 from Denver to Seattle, returning Sat, Jun 28, priced at $148 just found
Sat, Jul 5 - Sat, Jul 12
DEN
Denver
SEA
Seattle
$149 Roundtrip, found 23 hours ago
$149
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Sat, Jul 5 from Denver to Seattle, returning Sat, Jul 12, priced at $149 found 23 hours ago
Sat, May 10 - Sat, May 17
DEN
Denver
SEA
Seattle
$151 Roundtrip, just found
$151
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 10 from Denver to Seattle, returning Sat, May 17, priced at $151 just found
Wed, Apr 30 - Tue, May 6
DEN
Denver
SEA
Seattle
$154 Roundtrip, just found
$154
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 30 from Denver to Seattle, returning Tue, May 6, priced at $154 just found

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

Price found within the past 48 hours. Click for updated prices.
DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
per person
May 25 - May 27
found 1 day ago
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Beacon Hill Retro - Central Location

Beacon Hill Retro - Central Location

3 out of 5
per person
Jun 17 - Jun 21
found 1 day ago
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Hillside in Seattle - well appointed

Hillside in Seattle - well appointed

3 out of 5
per person
Jun 17 - Jun 21
found 1 day ago
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Sleep Inn - SeaTac Airport

Sleep Inn - SeaTac Airport

2.5 out of 5
per person
May 25 - May 27
found 1 day ago
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Comfort Inn & Suites Sea-Tac Airport

Comfort Inn & Suites Sea-Tac Airport

3 out of 5
per person
May 25 - May 27
found 1 day ago
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
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Frequently asked questions

Are there direct flights from DIA airport to SEA?
Kick off your escape calm and relaxed and head straight to Sea-Tac Airport from DIA airport. United Airlines and Southwest Airlines are among the airlines that sell direct services on this route.
How long is the flight from DEN to SEA?
If you’re flying from Denver to Seattle, you can expect the journey to take an average of 3 hours and 2 minutes. If this sounds longer than you had hoped, why not make the most of it? Read up on your destination, fine tune your itinerary and have a nap before the adventure starts.
What is the flight distance from DEN to Seattle - Tacoma Intl. Airport (SEA)?
The flight distance from DEN to SEA is 1,000 mi. Make sure to pack some reading material or a few podcasts to make the journey more relaxing.
What airlines fly from DIA airport to Seattle - Tacoma Intl. Airport (SEA)?
With quite a few airlines operating direct flights from Denver Intl. Airport (DEN) to Seattle - Tacoma Intl. Airport (SEA), you shouldn’t have a problem finding that perfect fare. Here are some of the top air carriers:

  • United Airlines - (UA) with 182 flights every month
  • Southwest Airlines - (WN) with 178 flights every month
  • Alaska Airlines - (AS) with 121 flights every month
  • Delta - (DL) with 121 flights every month

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 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that 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 2021, 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 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Denver to Seattle

 

Traveling From
Denver Intl.
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
2 hours 55 mins
Earliest Departure Time
6:30AM MDT
Latest Departure Time
10:36PM MDT
Lowest Flight Price
$100

Route Info

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


Origin:
DEN - Denver International Airport
Destination:
SEA - 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 $100 and $154. 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 $51. 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) 55 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, April 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.