Alaska Airlines Seattle to Denver Flights

Return flight: Denver – Seattle

Cheapflightsplus.com will find cheap Alaska Airlines flights from Seattle to Denver. Compare airline ticket prices and book air tickets starting from $34 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Alaska Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Denver (CO) by Alaska Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in october: one-way - $34, two-way – $58.
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Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
12:40 pm — 4:25 pm
12:40 pm — 4:25 pm AS1474 Alaska Airlines
Seattle — Denver
2h 45m
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from$34
1:45 pm — 5:31 pm
1:45 pm — 5:31 pm AS668 Alaska Airlines
Seattle — Denver
2h 46m
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from$125
2:05 pm — 5:35 pm
2:05 pm — 5:35 pm AS668 Alaska Airlines
Seattle — Denver
2h 30m
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from$34
2:05 pm — 5:35 pm
2:05 pm — 5:35 pm AS920 Alaska Airlines
Seattle — Denver
2h 30m
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from$42
3:25 pm — 7:05 pm
3:25 pm — 7:05 pm AS682 Alaska Airlines
Seattle — Denver
2h 40m
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from$136
6:25 pm — 10:13 pm
6:25 pm — 10:13 pm AS1170 Alaska Airlines
Seattle — Denver
2h 48m
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from$48
7:20 pm — 10:53 pm
7:20 pm — 10:53 pm AS684 Alaska Airlines
Seattle — Denver
2h 33m
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from$42
7:45 am — 11:30 am
7:45 am — 11:30 am AS682 Alaska Airlines
Seattle — Denver
2h 45m
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from$34
7:55 pm — 11:26 pm
7:55 pm — 11:26 pm AS1151 Alaska Airlines
Seattle — Denver
2h 31m
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from$34
9:10 am — 1:00 pm
9:10 am — 1:00 pm AS672 Alaska Airlines
Seattle — Denver
2h 50m
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from$136
9:20 pm — 1:00 am
+1 day
9:20 pm — 1:00 am AS678 Alaska Airlines
Seattle — Denver
2h 40m
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from$57
9:35 am — 1:20 pm
9:35 am — 1:20 pm AS674 Alaska Airlines
Seattle — Denver
2h 45m
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from$35
0:45 am — 9:28 am
0:45 am — 6:55 am AS20 Alaska Airlines
Seattle — Chicago
55m stop
7:50 am — 9:28 am UA675 United Airlines
Chicago — Denver
7h 43m
including layover
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from$300
0:45 am — 11:54 am
0:45 am — 6:55 am AS20 Alaska Airlines
Seattle — Chicago
3h 25m stop
10:20 am — 11:54 am UA1942 United Airlines
Chicago — Denver
10h 9m
including layover
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from$300
10:30 pm — 12:45 pm
+1 day
10:30 pm — 11:18 pm AS1205 Alaska Airlines
Seattle — Portland
9h 57m stop
9:15 am — 12:45 pm AS616 Alaska Airlines
Portland — Denver
13h 15m
including layover
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from$78
10:30 pm — 9:04 am
+1 day
10:30 pm — 11:18 pm AS1205 Alaska Airlines
Seattle — Portland
6h 12m stop
5:30 am — 9:04 am UA1987 United Airlines
Portland — Denver
9h 34m
including layover
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from$103
11:15 pm — 6:19 pm
+1 day
11:15 pm — 5:03 am AS1014 Alaska Airlines
Seattle — Chicago
11h 23m stop
4:26 pm — 6:19 pm F9411 Frontier Airlines
Chicago — Denver
18h 4m
including layover
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from$72
11:15 pm — 10:13 pm
+1 day
11:15 pm — 5:03 am AS1014 Alaska Airlines
Seattle — Chicago
15h 16m stop
8:19 pm — 10:13 pm F9413 Frontier Airlines
Chicago — Denver
21h 58m
including layover
Find flight
from$74
12:20 pm — 5:45 pm
12:20 pm — 1:15 pm AS3498 Alaska Airlines
Seattle — Portland
1h stop
2:15 pm — 5:45 pm AS620 Alaska Airlines
Portland — Denver
4h 25m
including layover
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from$129
4:00 pm — 9:35 pm
4:00 pm — 4:53 pm AS2166 Alaska Airlines
Seattle — Portland
1h 12m stop
6:05 pm — 9:35 pm UA2239 United Airlines
Portland — Denver
4h 35m
including layover
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from$478
4:40 pm — 6:45 am
+1 day
4:40 pm — 7:16 pm AS105 Alaska Airlines
Seattle — Anchorage
4h 29m stop
11:45 pm — 6:45 am UA1104 United Airlines
Anchorage — Denver
13h 5m
including layover
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from$880
5:35 pm — 7:04 am
+1 day
5:35 pm — 11:28 pm AS26 Alaska Airlines
Seattle — Chicago
5h 57m stop
5:25 am — 7:04 am UA2273 United Airlines
Chicago — Denver
12h 29m
including layover
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from$92
5:45 pm — 12:45 pm
+1 day
5:45 pm — 6:33 pm AS2881 Alaska Airlines
Seattle — Portland
14h 42m stop
9:15 am — 12:45 pm AS616 Alaska Airlines
Portland — Denver
18h
including layover
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from$84
6:45 pm — 12:45 pm
+1 day
6:45 pm — 7:33 pm AS2595 Alaska Airlines
Seattle — Portland
13h 42m stop
9:15 am — 12:45 pm AS616 Alaska Airlines
Portland — Denver
17h
including layover
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from$84
8:10 am — 6:11 pm
8:10 am — 10:49 am AS1172 Alaska Airlines
Seattle — San Diego
4h 8m stop
2:57 pm — 6:11 pm UA1040 United Airlines
San Diego — Denver
9h 1m
including layover
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from$274
8:20 am — 2:15 pm
8:20 am — 9:15 am AS2264 Alaska Airlines
Seattle — Portland
1h 30m stop
10:45 am — 2:15 pm AS616 Alaska Airlines
Portland — Denver
4h 55m
including layover
Find flight
from$129
1:15 pm — 10:14 pm
1:15 pm — 2:09 pm AS2063 Alaska Airlines
Seattle — Portland
2h 50m stop
4:59 pm — 7:45 pm DL1194 Delta Air Lines Inc.
Portland — Salt Lake City
51m stop
8:36 pm — 10:14 pm DL724 Delta Air Lines Inc.
Salt Lake City — Denver
7h 59m
including layover
Find flight
from$205
3:05 pm — 10:14 pm
3:05 pm — 4:00 pm AS2697 Alaska Airlines
Seattle — Portland
59m stop
4:59 pm — 7:45 pm DL1194 Delta Air Lines Inc.
Portland — Salt Lake City
51m stop
8:36 pm — 10:14 pm DL724 Delta Air Lines Inc.
Salt Lake City — Denver
6h 9m
including layover
Find flight
from$205
*Departure and arrival times are local. Last updated on 10/06/2024

Flight Information

There are 12 flights by Alaska Airlines from Seattle to Denver every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Denver International and Arapahoe Co.

Departures start from 0:30 am to 9:55 am. Nonstop flight is 2h 30m. The time difference between Seattle and Denver is 1h.

  • The fastest flight 2h 30m
  • Average flight time 2h 43m
  • The earliest flight 0:30 am
  • The latest flight 9:55 am
  • Distance 1022 ml

The cheapest flight by Alaska Airlines that our users were able to find is $34. This airfare is economy class on one-way AS1151 flight for October 24, 2020 leaving Seattle-Tacoma Intl in Seattle at 7:55 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Alaska Airlines there are other 7 airline carriers between Seattle and Denver. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Denver.

Nonstop flights

There are 75 direct flights every day from Seattle. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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