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Cheap Flights from Denver to Seattle, WA, United States - DEN to SEA

Popular flights from Denver to Seattle

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Aug 24, 2016 Aug 24, 2016 $212
American Airlines
Departure Date Return Date Lowest Price
Aug 24, 2016 Aug 30, 2016 $217
Frontier Airlines
Departure Date Return Date Lowest Price
Jun 7, 2016 Jun 8, 2016 $148
United Airlines
Departure Date Return Date Lowest Price
May 17, 2016 May 24, 2016 $190
May 18, 2016 May 24, 2016 $190
May 18, 2016 May 25, 2016 $190
Virgin America
Departure Date Return Date Lowest Price
Aug 3, 2016 Aug 8, 2016 $265

How Much Does it Cost to Fly from Denver to Seattle (DEN to SEA)?

We have collected flight cost data from across the web for travel from Denver to Seattle, and have found the average flight price for this trip to be $178.

When Can I Buy the Cheapest Flight from Denver to Seattle (DEN to SEA)?

Airlines can adjust prices for plane tickets from Denver to Seattle based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Denver to Seattle

The chart below shows up-to-date information regarding how far in advance a flight from Denver to Seattle should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $248 $257
7-14 days $190 $198
14-21 days $190 $198
21-30 days $192 $198
30-60 days $148 $219
60-90 days $208 $222
90+ days $138 $217

Cheapest Day To Fly from Denver to Seattle

The chart below shows up-to-date information regarding the cheapest days to fly from Denver to Seattle.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$173 $148 $178 $193 $203 $178 $173

Lowest Fares Chart By Month from Denver to Seattle

The chart below shows the lowest fare by month when flying from Denver to Seattle.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Denver Seattle United 5/17/16 5/24/16 0 $190
June Denver Seattle Frontier 6/7/16 6/8/16 0 $148
July Denver Seattle Frontier 7/26/16 8/1/16 0 $208
August Denver Seattle Frontier 8/3/16 8/8/16 0 $208
September Denver Seattle Frontier 9/7/16 9/13/16 0 $138
October Denver Seattle Frontier 10/19/16 10/25/16 0 $138
November Denver Seattle American 11/3/16 11/5/16 1 $224
December Denver Seattle American 12/15/16 12/20/16 1 $248

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Denver to Seattle

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Denver to Seattle.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$300
8 9 10 11 12 13 14
$300 $224
15 16 17 18 19 20 21
$224 $193
22 23 24 25 26 27 28
$193 $219
29 30 31 1 2 3 4
$219 $201
5 6 7 8 9 10 11
$201

Non-Stop vs Connecting Flights from Denver to Seattle (DEN to SEA)

Your Denver to Seattle flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Denver to Seattle is $256.

The average price for non-stop flights from Denver to Seattle is $227.

The chart below shows up to date information regarding non-stop flights from Denver to Seattle.

Nonstop Flight Details from Denver to Seattle
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 5 5 4 4 5 4 5 06:10 19:40
Delta 5 5 4 4 5 4 4 08:00 19:24
Frontier 2 2 2 2 2 2 2 08:55 18:35
United 6 5 5 5 5 4 4 07:55 22:15

Round Trip vs One Way Flights from Denver to Seattle (DEN to SEA)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Denver to Seattle. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Denver to Seattle is $112.

The average price for round trip flights from Denver to Seattle is $229.

Denver to Seattle Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Denver to Seattle?
Answer: The average Denver to Seattle flight time is 2 hours and 51 minutes.
Question: How many miles are there between Denver and Seattle?
Answer: The distance from Denver to Seattle is 1021 miles.
Question: How common are direct flights from Denver to Seattle?
Answer: There are 106 direct flights from Denver to Seattle.
Question: What is the most popular airline for non-stop flights from Denver to Seattle?
Answer: Alaska Airlines provides 30% of the non-stop flights between Denver and Seattle.
Question: What are the most popular connecting cities when flying from Denver to Seattle?
Answer: Las Vegas, NV

Airlines Flying from Denver to Seattle (DEN to SEA)

Below are the different airlines that fly from Denver to Seattle with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Denver to Seattle.

Denver to Seattle
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX X X X X X X X
Alaska - X X X X X X X
Delta - X X X X X X X
Delta SLC X X X X X X X
Frontier - X X X X X X X
Spirit LAX X X X X X X X
United - X X X X X X X
United SFO X X X X X X X
Virgin America SFO X X X X X X X
Virgin America SFO / LAX X X X X X X X
Southwest - X X X X X X X
Southwest SMF X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Denver and Seattle, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Denver - DEN

FlightsAirlineLowest Price
Denver to Portland American, Alaska, Frontier, United, Virgin America $168
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $96
Denver to Las Vegas American, Alaska, Frontier, Spirit, United $91
Denver to Bellingham American, Alaska, United $362
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $78
Denver to Chicago American, Alaska, Frontier, Spirit, United $81
Denver to San Francisco American, Alaska, Frontier, United, Virgin America $137
Denver to Spokane American, Alaska, United $282
Denver to Atlanta American, Alaska, Frontier, Spirit, United $140
Denver to Pasco American, Alaska, United $337
Denver to Phoenix American, Alaska, Frontier, Spirit, United $81
Denver to Salt Lake City Boutique, American, Frontier, United $108
Denver to Eugene American, Alaska, United $280
Denver to Yakima American, Alaska $338
Denver to Wenatchee American, Alaska $402
Denver to Boise United $272
Denver to Redmond American, Alaska, United $358
Denver to Sacramento American, Alaska, United $247
Denver to Medford American, Alaska, United $410
Denver to Reno American, Alaska, United $237
Denver to San Diego American, Alaska, Frontier, Spirit, United, Virgin America $117

Cheap International Flights from Denver - DEN

FlightsAirlineLowest Price
Denver to Vancouver Boutique, American, Air Canada, Alaska, Frontier, Sun Country, United, Virgin America, WestJet $402
Denver to Victoria American, Air Canada, Alaska, Frontier, United, WestJet $254

Cheap Domestic Flights to Seattle - SEA

FlightsAirlineLowest Price
Colorado Springs to Seattle Alaska, United $269
Montrose to Seattle American, United $1,037
Aspen to Seattle American, Alaska, United $541
Gunnison to Seattle United $472
Hayden - Steamboat to Seattle Alaska, United $372
Vail to Seattle American, Alaska, United $512
Colorado Springs to Portland Alaska, United $308
Cheap Flights from Denver to Seattle, WA, United States, from $148 Round trip from DEN to SEA