Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Flights
Hotels
1 traveler
Unsupported Browser!
Find Flights

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

Popular flights from Seattle to Denver

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
May 25, 2016 Jun 6, 2016 $212
American Airlines
Departure Date Return Date Lowest Price
Jun 21, 2016 Jun 28, 2016 $216
Frontier Airlines
Departure Date Return Date Lowest Price
Jun 1, 2016 Jun 8, 2016 $138
Spirit Airlines
Departure Date Return Date Lowest Price
May 11, 2016 May 17, 2016 $228
United Airlines
Departure Date Return Date Lowest Price
May 18, 2016 May 25, 2016 $187
Virgin America
Departure Date Return Date Lowest Price
Jun 6, 2016 Jun 8, 2016 $249

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

We have collected flight cost data from across the web for travel from Seattle to Denver, and have found the average flight price for this trip to be $159.

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

Airlines can adjust prices for plane tickets from Seattle to Denver 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 Seattle to Denver

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

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $276 $253
7-14 days $187 $195
14-21 days $171 $195
21-30 days $138 $217
30-60 days $148 $216
60-90 days $206 $221
90+ days $148 $215

Cheapest Day To Fly from Seattle to Denver

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$168 $163 $138 $171 $163 $147 $163

Lowest Fares Chart By Month from Seattle to Denver

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Seattle Denver Frontier 5/28/16 6/8/16 0 $147
June Seattle Denver Frontier 6/1/16 6/8/16 0 $138
July Seattle Denver Frontier 7/11/16 7/26/16 0 $208
August Seattle Denver Frontier 8/1/16 8/4/16 0 $206
September Seattle Denver Frontier 9/7/16 9/17/16 0 $148
October Seattle Denver Frontier 10/1/16 10/11/16 0 $148
November Seattle Denver American 11/9/16 11/15/16 1 $224
December Seattle Denver American 12/2/16 12/9/16 1 $224

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

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 Seattle to Denver.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$349
8 9 10 11 12 13 14
$349 $300
15 16 17 18 19 20 21
$300 $248
22 23 24 25 26 27 28
$248 $233
29 30 31 1 2 3 4
$233 $148
5 6 7 8 9 10 11
$148

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

Your Seattle to Denver 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 Seattle to Denver is $233.

The average price for non-stop flights from Seattle to Denver is $222.

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

Nonstop Flight Details from Seattle to Denver
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 5 4 4 5 5 4 5 06:30 20:30
Delta 5 5 4 4 5 4 4 07:40 19:55
Frontier 2 2 2 2 2 2 2 11:30 19:15
United 5 5 5 5 5 3 3 05:12 17:22

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

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 Seattle to Denver. 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 Seattle to Denver is $99.

The average price for round trip flights from Seattle to Denver is $217.

More Cheap Flights

FlightsAirlineLowest Price
Portland to Denver American, Alaska, Frontier, Spirit, United, Virgin America $168
Vancouver to Denver Pacific Coastal, American, Air Canada, Alaska, Frontier, United, WestJet $361
Bellingham to Denver American, Alaska $343
Pasco to Denver American, Alaska, United $263
Victoria to Denver American, Air Canada, Alaska, United, WestJet $289
Yakima to Denver American, Alaska $389
Wenatchee to Denver American, Alaska $351
Comox to Denver American, Air Canada, Alaska, United, WestJet Check Dates
Nanaimo to Denver American, Air Canada, Alaska, United, WestJet Check Dates
Penticton to Denver American, Air Canada, Alaska, United, WestJet Check Dates
Seattle to Dallas - Ft Worth American, Alaska, Frontier, Spirit, Sun Country, United, Virgin America $240
Seattle to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $195
Seattle to Colorado Springs American, Alaska, United $226
Seattle to Los Angeles American, Alaska, Spirit, United, Virgin America $106
Seattle to Atlanta American, Alaska, Frontier, Spirit, United $368
Seattle to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $80
Portland to Dallas - Ft Worth American, Alaska, Frontier, Hawaiian, Spirit, United, Virgin America $152
Portland to Colorado Springs American, Alaska, United $409
Seattle to New York American, Alaska, JetBlue, Frontier, Hawaiian, Sun Country, United, Virgin America $300
Portland to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $137
Seattle to Phoenix American, Alaska, Frontier, United $208
Portland to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $107
Seattle to Salt Lake City American, Alaska, United $254
Portland to Los Angeles American, Alaska, Spirit, United, Virgin America $87
Portland to Atlanta American, Alaska, Frontier, United $337
Portland to Phoenix American, Alaska, Frontier, United $184
Vancouver to Los Angeles Pacific Coastal, American, Air Canada, Alaska, JetBlue, Spirit, United, Virgin America, WestJet $168
Portland to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $313
Seattle to Minneapolis - St Paul American, Alaska, Frontier, Spirit, Sun Country, United $227
Vancouver to Las Vegas Pacific Coastal, American, Air Canada, Alaska, Hawaiian, Spirit, United, Virgin America, WestJet $234

Airlines Flying from Seattle to Denver (SEA to DEN)

Below are the different airlines that fly from Seattle to Denver 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 Seattle to Denver.

Seattle to Denver
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 MSP 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 LAX / SFO X X X X X X
Southwest - X X X X X X X
Southwest SJC X X X X X X X

Airports for Your Route

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

Seattle to Denver Flight Questions

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

Question: How long is a direct flight from Seattle to Denver?
Answer: The average Seattle to Denver flight time is 2 hours and 42 minutes.
Question: How many miles are there between Seattle and Denver?
Answer: The distance from Seattle to Denver is 1021 miles.
Question: How common are direct flights from Seattle to Denver?
Answer: There are 104 direct flights from Seattle to Denver.
Question: What is the most popular airline for non-stop flights from Seattle to Denver?
Answer: Alaska Airlines provides 30% of the non-stop flights between Seattle and Denver.
Question: What are the most popular connecting cities when flying from Seattle to Denver?
Answer: San Francisco, CA
Seattle (SEA) To Denver, CO (DEN) Flights: Cheap Flights From Seattle To Denver | FareCompare.