United Airlines Seattle to Denver Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Seattle to Denver. Compare airline ticket prices and book air tickets starting from $92 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Denver (CO) by United 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 march: one-way - $92, two-way – $158.

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Cheap Flights from Seattle to Denver by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $92. The fastest nonstop flight takes 2h 42m. The fastest connecting flight — 5h 47m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $92 Find flight	5:02 am Seattle Seattle-Tacoma Intl	8:44 am Denver Denver International	2h 42m	United Airlines	UA2269
from $140 Find flight	7:13 pm Seattle Seattle-Tacoma Intl	10:57 pm Denver Denver International	2h 44m	United Airlines	UA1387
from $232 Find flight	12:46 pm Seattle Seattle-Tacoma Intl	4:31 pm Denver Denver International	2h 45m	United Airlines	UA423
from $138 Find flight	9:20 am Seattle Seattle-Tacoma Intl	6:05 pm Denver Denver International	7h 45m layover 2h 46m - San Francisco	United Airlines	UA1960 UA1691
from $145 Find flight	3:04 pm Seattle Seattle-Tacoma Intl	10:28 pm Denver Denver International	6h 24m layover 1h 17m - Los Angeles	United Airlines	UA2610 UA2610
from $150 Find flight	3:24 pm Seattle Seattle-Tacoma Intl	11:45 pm Denver Denver International	7h 21m layover 2h 23m - San Francisco	United Airlines	UA589 UA624
from $150 Find flight	4:58 pm Seattle Seattle-Tacoma Intl	11:45 pm Denver Denver International	5h 47m layover 0h 55m - San Francisco	United Airlines	UA2482 UA624
from $241 Find flight	12:37 pm Seattle Seattle-Tacoma Intl	7:40 pm Denver Denver International	6h 3m layover 1h 5m - San Francisco	United Airlines	UA1482 UA566
from $249 Find flight	7:15 am Seattle Seattle-Tacoma Intl	6:05 pm Denver Denver International	9h 50m layover 4h 49m - San Francisco	United Airlines	UA1403 UA1691
from $279 Find flight	6:15 am Seattle Seattle-Tacoma Intl	2:41 pm Denver Denver International	7h 26m layover 2h 14m - Los Angeles	United Airlines	UA1571 UA393

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/23/2025

United 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
12:37 pm — 9:45 pm	12:37 pm — 2:55 pm UA1482 United Airlines Seattle — San Francisco 3h 10m stop 6:05 pm — 9:45 pm UA297 United Airlines San Francisco — Denver	8h 8m including layover	Find flight from$150
12:37 pm — 7:40 pm	12:37 pm — 2:55 pm UA1482 United Airlines Seattle — San Francisco 1h 5m stop 4:00 pm — 7:40 pm UA566 United Airlines San Francisco — Denver	6h 3m including layover	Find flight from$241
12:37 pm — 11:45 pm	12:37 pm — 2:55 pm UA1482 United Airlines Seattle — San Francisco 5h 10m stop 8:05 pm — 11:45 pm UA624 United Airlines San Francisco — Denver	10h 8m including layover	Find flight from$273
12:37 pm — 10:45 pm	12:37 pm — 2:55 pm UA1482 United Airlines Seattle — San Francisco 4h 10m stop 7:05 pm — 10:45 pm UA2862 United Airlines San Francisco — Denver	9h 8m including layover	Find flight from$273
12:46 pm — 4:31 pm	12:46 pm — 4:31 pm UA423 United Airlines Seattle — Denver	2h 45m	Find flight from$232
3:04 pm — 10:28 pm	3:04 pm — 5:48 pm UA2610 United Airlines Seattle — Los Angeles 1h 17m stop 7:05 pm — 10:28 pm UA2610 United Airlines Los Angeles — Denver	6h 24m including layover	Find flight from$145
3:24 pm — 11:45 pm	3:24 pm — 5:42 pm UA589 United Airlines Seattle — San Francisco 2h 23m stop 8:05 pm — 11:45 pm UA624 United Airlines San Francisco — Denver	7h 21m including layover	Find flight from$150
4:58 pm — 11:45 pm	4:58 pm — 7:10 pm UA2482 United Airlines Seattle — San Francisco 55m stop 8:05 pm — 11:45 pm UA624 United Airlines San Francisco — Denver	5h 47m including layover	Find flight from$150
5:02 am — 8:44 am	5:02 am — 8:44 am UA2269 United Airlines Seattle — Denver	2h 42m	Find flight from$92
6:15 am — 2:41 pm	6:15 am — 9:01 am UA1571 United Airlines Seattle — Los Angeles 2h 14m stop 11:15 am — 2:41 pm UA393 United Airlines Los Angeles — Denver	7h 26m including layover	Find flight from$279
6:15 am — 6:15 pm	6:15 am — 9:01 am UA1571 United Airlines Seattle — Los Angeles 5h 48m stop 2:49 pm — 6:15 pm UA756 United Airlines Los Angeles — Denver	11h including layover	Find flight from$279
7:13 pm — 10:57 pm	7:13 pm — 10:57 pm UA1387 United Airlines Seattle — Denver	2h 44m	Find flight from$140
7:15 am — 6:05 pm	7:05 am — 9:25 am UA1403 United Airlines Seattle — San Francisco 4h 49m stop 2:40 pm — 6:20 pm UA1691 United Airlines San Francisco — Denver	9h 50m including layover	Find flight from$249
9:20 am — 6:05 pm	9:20 am — 11:39 am UA1960 United Airlines Seattle — San Francisco 2h 46m stop 2:40 pm — 6:20 pm UA1691 United Airlines San Francisco — Denver	7h 45m including layover	Find flight from$138

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

*Departure and arrival times are local. Last updated on 02/23/2025

Flight Information

There are 3 flights by United 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 12:37 pm to 9:20 am. Nonstop flight is 2h 42m. The time difference between Seattle and Denver is 1h.

The fastest flight 2h 42m
Average flight time 2h 44m
The earliest flight 12:37 pm
The latest flight 9:20 am
Distance 1022 ml

The cheapest months for traveling to Denver are december (from 92 $), january (from 117 $), february (from 117 $).

The cheapest flight by United Airlines that our users were able to find is $92. This airfare is economy class on one-way UA2269 flight for February 21, 2025 leaving Seattle-Tacoma Intl in Seattle at 5:02 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

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

Other Popular Airlines on the Route

Besides United Airlines there are other 4 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 6 direct flights every day from Seattle. Airlines and fares are below:

AS - Alaska Airlines

from $95

Find
F9 - Frontier Airlines

from $30

Find

See more direct flights

Connecting Flights

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

AS - Alaska Airlines

from $150

Find
F9 - Frontier Airlines

from $59

Find
NK - Spirit Airlines

from $212

Find
Y4 - Volaris

from $398

Find

See more connecting flights

How to book an air ticket yourself?

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