$39 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.

Amazing DEN to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $71 round trip and $39 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Aug 13 - Wed, Aug 28
DEN
Denver
SEA
Seattle
$71 Roundtrip, found 2 days ago
$71
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Aug 13 from Denver to Seattle, returning Wed, Aug 28, priced at $71 found 2 days ago
Thu, May 9 - Tue, May 28
DEN
Denver
SEA
Seattle
$80 Roundtrip, found 2 days ago
$80
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, May 9 from Denver to Seattle, returning Tue, May 28, priced at $80 found 2 days ago
Wed, May 8 - Sat, May 25
DEN
Denver
SEA
Seattle
$83 Roundtrip, found 6 days ago
$83
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Wed, May 8 from Denver to Seattle, returning Sat, May 25, priced at $83 found 6 days ago
Mon, May 20 - Wed, Jun 5
DEN
Denver
SEA
Seattle
$86 Roundtrip, found 2 days ago
$86
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, May 20 from Denver to Seattle, returning Wed, Jun 5, priced at $86 found 2 days ago
Sat, Sep 28 - Sat, Oct 5
DEN
Denver
SEA
Seattle
$88 Roundtrip, found 6 days ago
$88
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Sep 28 from Denver to Seattle, returning Sat, Oct 5, priced at $88 found 6 days ago
Wed, May 22 - Tue, Jun 11
DEN
Denver
SEA
Seattle
$90 Roundtrip, found 2 days ago
$90
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, May 22 from Denver to Seattle, returning Tue, Jun 11, priced at $90 found 2 days ago
Tue, Jun 11 - Tue, Jun 25
DEN
Denver
SEA
Seattle
$91 Roundtrip, found 2 days ago
$91
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Jun 11 from Denver to Seattle, returning Tue, Jun 25, priced at $91 found 2 days ago
Sat, May 4 - Tue, May 7
DEN
Denver
SEA
Seattle
$92 Roundtrip, found 7 hours ago
$92
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, May 4 from Denver to Seattle, returning Tue, May 7, priced at $92 found 7 hours ago
Tue, May 7 - Wed, May 22
DEN
Denver
SEA
Seattle
$93 Roundtrip, found 2 days ago
$93
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 7 from Denver to Seattle, returning Wed, May 22, priced at $93 found 2 days ago
Sun, May 19 - Wed, Jun 5
DEN
Denver
SEA
Seattle
$96 Roundtrip, found 2 days ago
$96
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 19 from Denver to Seattle, returning Wed, Jun 5, priced at $96 found 2 days ago

Flight Schedule for DEN to SEA

CarrierFlightDepart DENArrive SEAFri
4/26		Sat
4/27		Sun
4/28		Mon
4/29		Tue
4/30		Wed
5/1		Thu
5/2		Stops
DL173106:15 am08:28 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS64306:45 am08:42 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA139907:46 am09:47 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS68110:53 am00:50 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA69011:35 am01:36 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
DL66411:55 am02:04 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
F9235902:54 pm05:03 pmCheck Fare
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0 Stops
AS61703:45 pm05:39 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA125704:05 pm06:08 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA220107:05 pm09:08 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
F9160707:25 pm09:34 pmCheck Fare
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0 Stops
DL295607:50 pm09:56 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS70507:55 pm09:49 pmCheck Fare
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Check FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA265108:57 pm11:00 pmCheck Fare
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Check FareCheck Fare
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-
0 Stops
F9214711:44 am01:55 pm
-
Check Fare
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0 Stops
F9464706:22 pm08:32 pm
-
Check Fare
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0 Stops
F9464907:31 pm09:40 pm
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Check Fare
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0 Stops
F9117505:11 am07:20 am
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0 Stops
F9181506:25 pm08:35 pm
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0 Stops
F9340502:49 pm04:58 pm
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Check Fare
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0 Stops
UA71001:30 pm03:31 pm
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-
Check Fare
0 Stops
F9462507:05 pm09:14 pm
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Check Fare
0 Stops
UA244508:59 pm11:02 pm
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0 Stops

Best Seattle - Tacoma Intl. Flight and Hotel Packages

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

Prices and availability subject to change. Additional terms may apply.
Pan Pacific Seattle

Pan Pacific Seattle

4 out of 5
Save 100% on your flight
per person
Jun 4 - Jun 10
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Bellevue Club Hotel

Bellevue Club Hotel

4.5 out of 5
Save 100% on your flight
per person
Jun 4 - Jun 10
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Comfort Inn & Suites Sea-Tac Airport

Comfort Inn & Suites Sea-Tac Airport

3 out of 5
Save 100% on your flight
per person
Jun 6 - Jun 10
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Kimpton Palladian Hotel, an IHG Hotel

Kimpton Palladian Hotel, an IHG Hotel

4 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 11
Roundtrip flight included
Denver (DEN) to Seattle (SEA)
Level Seattle Downtown - South Lake Union

Level Seattle Downtown - South Lake Union

3.5 out of 5
Save 100% on your flight
per person
Jun 7 - Jun 12
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.

 

Traveling From
Denver Intl.
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
2 hours 54 mins
Earliest Departure Time
6:15AM MDT
Latest Departure Time
10:00PM MDT
Lowest Flight Price
$71

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 $71 and $96. 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 $39. 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) 54 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, August 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.