Alaska Airlines Seattle to Denver Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Alaska Airlines flights from Seattle to Denver. Compare airline ticket prices and book air tickets starting from $81 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 december: one-way - $81, two-way – $139.

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Cheap Flights from Seattle to Denver by Alaska Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by Alaska Airlines, their prices start from $81. The fastest nonstop flight takes 2h 37m. The fastest connecting flight — 4h 25m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $81 Find flight	6:59 pm Seattle Seattle-Tacoma Intl	10:36 pm Denver Denver International	2h 37m	Alaska Airlines	AS321
from $95 Find flight	12:34 pm Seattle Seattle-Tacoma Intl	4:12 pm Denver Denver International	2h 38m	Alaska Airlines	AS602
from $107 Find flight	3:21 pm Seattle Seattle-Tacoma Intl	6:59 pm Denver Denver International	2h 38m	Alaska Airlines	AS524
from $102 Find flight	7:42 am Seattle Seattle-Tacoma Intl	1:07 pm Denver Denver International	4h 25m layover 1h 1m - Portland	Alaska Airlines	AS2180 AS336
from $150 Find flight	8:05 am Seattle Seattle-Tacoma Intl	1:57 pm Denver Denver International	4h 52m layover 1h 21m - Portland	Alaska Airlines	AS3362 AS336
from $159 Find flight	8:59 pm Seattle Seattle-Tacoma Intl	1:07 pm+1 день Denver Denver International	15h 8m layover 11h 42m - Portland	Alaska Airlines	AS123 AS336
from $200 Find flight	5:30 pm Seattle Seattle-Tacoma Intl	1:07 pm+1 день Denver Denver International	18h 37m layover 15h 16m - Portland	Alaska Airlines	AS2007 AS336
from $210 Find flight	7:55 pm Seattle Seattle-Tacoma Intl	1:07 pm+1 день Denver Denver International	16h 12m layover 7h 25m - Los Angeles 0h 58m - Portland	Alaska Airlines	AS1224 AS1124 AS336
from $212 Find flight	9:16 pm Seattle Seattle-Tacoma Intl	1:07 pm+1 день Denver Denver International	14h 51m layover 6h 1m - Los Angeles 0h 58m - Portland	Alaska Airlines	AS1292 AS1124 AS336
from $212 Find flight	5:59 pm Seattle Seattle-Tacoma Intl	1:07 pm+1 день Denver Denver International	18h 8m layover 9h 17m - Los Angeles 0h 58m - Portland	Alaska Airlines	AS1054 AS1124 AS336
from $219 Find flight	8:45 am Seattle Seattle-Tacoma Intl	7:15 pm Denver Denver International	9h 30m layover 1h 24m - Portland 2h 13m - Los Angeles	Alaska Airlines	AS2114 AS1172 AS4722
from $245 Find flight	6:55 am Seattle Seattle-Tacoma Intl	7:15 pm Denver Denver International	11h 20m layover 1h 26m - San Francisco 3h 43m - Los Angeles	Alaska Airlines	AS3369 AS2149 AS4722

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 12/21/2024

Alaska Airlines Flight Schedule Seattle to Denver

Below is a detailed 2025 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	Flight Details	Flight Time	Price
12:34 pm — 4:12 pm	12:34 pm — 4:12 pm AS602 Alaska Airlines Seattle — Denver	2h 38m	Find flight from$95
3:21 pm — 6:59 pm	3:21 pm — 6:59 pm AS524 Alaska Airlines Seattle — Denver	2h 38m	Find flight from$107
5:30 pm — 1:07 pm +1 day	5:30 pm — 6:19 pm AS2007 Alaska Airlines Seattle — Portland 15h 16m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	18h 37m including layover	Find flight from$200
5:59 pm — 1:07 pm +1 day	5:59 pm — 8:43 pm AS1054 Alaska Airlines Seattle — Los Angeles 9h 17m stop 6:00 am — 8:37 am AS1124 Alaska Airlines Los Angeles — Portland 58m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	18h 8m including layover	Find flight from$212
6:55 am — 7:15 pm	6:55 am — 9:11 am AS3369 Alaska Airlines Seattle — San Francisco 1h 26m stop 10:37 am — 12:08 pm AS2149 Alaska Airlines San Francisco — Los Angeles 3h 43m stop 3:51 pm — 7:15 pm AS4722 Alaska Airlines Los Angeles — Denver	11h 20m including layover	Find flight from$245
6:59 pm — 10:36 pm	6:59 pm — 10:36 pm AS321 Alaska Airlines Seattle — Denver	2h 37m	Find flight from$81
7:42 am — 1:07 pm	7:42 am — 8:34 am AS2180 Alaska Airlines Seattle — Portland 1h 1m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	4h 25m including layover	Find flight from$102
7:42 am — 7:15 pm	7:42 am — 8:34 am AS2180 Alaska Airlines Seattle — Portland 2h 36m stop 11:20 am — 1:48 pm AS1172 Alaska Airlines Portland — Los Angeles 2h 13m stop 3:51 pm — 7:15 pm AS4722 Alaska Airlines Los Angeles — Denver	10h 33m including layover	Find flight from$219
7:55 pm — 1:07 pm +1 day	7:55 pm — 10:35 pm AS1224 Alaska Airlines Seattle — Los Angeles 7h 25m stop 6:00 am — 8:37 am AS1124 Alaska Airlines Los Angeles — Portland 58m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	16h 12m including layover	Find flight from$210
8:05 am — 1:57 pm	8:05 am — 8:58 am AS3362 Alaska Airlines Seattle — Portland 1h 21m stop 10:19 am — 1:57 pm AS336 Alaska Airlines Portland — Denver	4h 52m including layover	Find flight from$150
8:45 am — 7:15 pm	8:45 am — 9:46 am AS2114 Alaska Airlines Seattle — Portland 1h 24m stop 11:20 am — 1:48 pm AS1172 Alaska Airlines Portland — Los Angeles 2h 13m stop 3:51 pm — 7:15 pm AS4722 Alaska Airlines Los Angeles — Denver	9h 30m including layover	Find flight from$219
8:59 pm — 1:07 pm +1 day	8:59 pm — 9:53 pm AS123 Alaska Airlines Seattle — Portland 11h 42m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	15h 8m including layover	Find flight from$159
9:16 pm — 1:07 pm +1 day	9:16 pm — 11:59 pm AS1292 Alaska Airlines Seattle — Los Angeles 6h 1m stop 6:00 am — 8:37 am AS1124 Alaska Airlines Los Angeles — Portland 58m stop 9:35 am — 1:07 pm AS336 Alaska Airlines Portland — Denver	14h 51m including layover	Find flight from$212

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 12/21/2024

Flight Information

There are 3 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 12:34 pm to 9:16 pm. Nonstop flight is 2h 37m. The time difference between Seattle and Denver is 1h.

The fastest flight 2h 37m
Average flight time 2h 38m
The earliest flight 12:34 pm
The latest flight 9:16 pm
Distance 1022 ml

The cheapest months for traveling to Denver are january (from 81 $), february (from 95 $).

The cheapest flight by Alaska Airlines that our users were able to find is $81. This airfare is economy class on one-way AS321 flight for January 22, 2025 leaving Seattle-Tacoma Intl in Seattle at 6:59 pm, it includes all taxes and additional fees.

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Alaska Airlines Airplanes on the Route

List of the most popular Alaska Airlines airplanes flying from Seattle to Denver:

Other Popular Airlines on the Route

Besides Alaska Airlines there are other 5 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 11 direct flights every day from Seattle. Airlines and fares are below:

F9 - Frontier Airlines

from $60

Find
UA - United Airlines

from $117

Find

See more direct flights

Connecting Flights

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

F9 - Frontier Airlines

from $65

Find
UA - United Airlines

from $138

Find
NK - Spirit Airlines

from $212

Find
Y4 - Volaris

from $398

Find
AM - Aeromexico

from $957

Find

See more connecting flights

How to book an air ticket yourself?

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