United Airlines Denver to Seattle Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Denver to Seattle. Compare airline ticket prices and book air tickets starting from $157 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 Denver (CO) — Seattle (WA) 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 may: one-way - $157, two-way – $269.

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Cheap Flights from Denver to Seattle 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 $157. The fastest nonstop flight takes 2h 57m. The fastest connecting flight — 5h 59m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $221 Find flight	8:32 pm Denver Denver International	10:30 pm Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA2651
from $311 Find flight	7:11 pm Denver Denver International	9:08 pm Seattle Seattle-Tacoma Intl	2h 57m	United Airlines	UA299
from $403 Find flight	11:30 am Denver Denver International	1:28 pm Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA690
from $157 Find flight	5:00 am Denver Denver International	11:21 am Seattle Seattle-Tacoma Intl	7h 21m layover 2h 22m - San Francisco	United Airlines	UA2367 UA1417
from $248 Find flight	1:26 pm Denver Denver International	9:11 pm Seattle Seattle-Tacoma Intl	8h 45m layover 3h 45m - San Francisco	United Airlines	UA1812 UA2019
from $250 Find flight	5:59 pm Denver Denver International	0:59 am+1 день Seattle Seattle-Tacoma Intl	8h 0m layover 3h 5m - San Francisco	United Airlines	UA1007 UA573
from $255 Find flight	1:25 pm Denver Denver International	9:58 pm Seattle Seattle-Tacoma Intl	9h 33m layover 4h 9m - Los Angeles	United Airlines	UA1252 UA684
from $255 Find flight	7:52 am Denver Denver International	9:58 pm Seattle Seattle-Tacoma Intl	15h 6m layover 9h 42m - Los Angeles	United Airlines	UA1638 UA684
from $255 Find flight	10:10 am Denver Denver International	9:58 pm Seattle Seattle-Tacoma Intl	12h 48m layover 7h 24m - Los Angeles	United Airlines	UA405 UA684
from $267 Find flight	8:50 pm Denver Denver International	9:50 am+1 день Seattle Seattle-Tacoma Intl	14h 0m layover 6h 45m - Chicago	United Airlines	UA377 UA1643
from $287 Find flight	6:00 am Denver Denver International	6:53 pm Seattle Seattle-Tacoma Intl	13h 53m layover 6h 29m - Chicago	United Airlines	UA1377 UA2278
from $293 Find flight	11:16 am Denver Denver International	9:58 pm Seattle Seattle-Tacoma Intl	11h 42m layover 6h 18m - Los Angeles	United Airlines	UA1013 UA684
from $295 Find flight	3:45 pm Denver Denver International	9:58 pm Seattle Seattle-Tacoma Intl	7h 13m layover 1h 49m - Los Angeles	United Airlines	UA564 UA684
from $295 Find flight	7:52 am Denver Denver International	1:26 pm Seattle Seattle-Tacoma Intl	6h 34m layover 1h 10m - Los Angeles	United Airlines	UA1638 UA2279
from $297 Find flight	9:44 pm Denver Denver International	8:49 am+1 день Seattle Seattle-Tacoma Intl	12h 5m layover 7h 0m - San Francisco	United Airlines	UA1412 UA1969
from $267 Find flight	10:10 am Denver Denver International	9:11 pm Seattle Seattle-Tacoma Intl	12h 1m layover 4h 27m - Los Angeles 1h 16m - San Francisco	United Airlines	UA405 UA2019 UA2019

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 05/15/2025

United Airlines Flight Schedule Denver to Seattle

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
11:30 am — 1:28 pm	11:30 am — 1:28 pm UA690 United Airlines Denver — Seattle	2h 58m	Find flight from$403
4:15 pm — 6:14 pm	4:15 pm — 6:14 pm UA745 United Airlines Denver — Seattle	2h 59m	Find flight from$403
7:11 pm — 9:08 pm	7:11 pm — 9:08 pm UA299 United Airlines Denver — Seattle	2h 57m	Find flight from$311
8:08 am — 10:08 am	8:08 am — 10:08 am UA204 United Airlines Denver — Seattle	3h	Find flight from$403
8:32 pm — 10:30 pm	8:32 pm — 10:30 pm UA2651 United Airlines Denver — Seattle	2h 58m	Find flight from$221
10:10 am — 9:58 pm	10:10 am — 11:43 am UA405 United Airlines Denver — Los Angeles 7h 24m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	12h 48m including layover	Find flight from$255
11:16 am — 9:58 pm	11:16 am — 12:49 pm UA1013 United Airlines Denver — Los Angeles 6h 18m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	11h 42m including layover	Find flight from$293
11:30 am — 6:25 pm	11:30 am — 1:14 pm UA1561 United Airlines Denver — San Francisco 2h 58m stop 4:12 pm — 6:25 pm UA343 United Airlines San Francisco — Seattle	7h 55m including layover	Find flight from$309
1:25 pm — 9:58 pm	1:35 pm — 3:09 pm UA1252 United Airlines Denver — Los Angeles 4h 9m stop 7:30 pm — 10:30 pm UA684 United Airlines Los Angeles — Seattle	9h 33m including layover	Find flight from$255
1:26 pm — 9:11 pm	1:26 pm — 3:10 pm UA1812 United Airlines Denver — San Francisco 3h 45m stop 6:55 pm — 9:11 pm UA2019 United Airlines San Francisco — Seattle	8h 45m including layover	Find flight from$248
3:45 pm — 9:58 pm	3:45 pm — 5:18 pm UA564 United Airlines Denver — Los Angeles 1h 49m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	7h 13m including layover	Find flight from$295
5:00 am — 11:21 am	5:00 am — 6:42 am UA2367 United Airlines Denver — San Francisco 2h 22m stop 9:04 am — 11:21 am UA1417 United Airlines San Francisco — Seattle	7h 21m including layover	Find flight from$157
5:00 am — 0:59 am +1 day	5:00 am — 6:42 am UA2367 United Airlines Denver — San Francisco 16h 8m stop 10:50 pm — 0:59 am UA573 United Airlines San Francisco — Seattle	20h 59m including layover	Find flight from$241
6:00 am — 6:53 pm	6:00 am — 9:41 am UA1377 United Airlines Denver — Chicago 6h 29m stop 4:10 pm — 6:53 pm UA2278 United Airlines Chicago — Seattle	13h 53m including layover	Find flight from$287
7:52 am — 9:58 pm	7:52 am — 9:25 am UA1638 United Airlines Denver — Los Angeles 9h 42m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	15h 6m including layover	Find flight from$255
7:52 am — 1:26 pm	7:52 am — 9:25 am UA1638 United Airlines Denver — Los Angeles 1h 10m stop 10:35 am — 1:26 pm UA2279 United Airlines Los Angeles — Seattle	6h 34m including layover	Find flight from$295
8:50 pm — 9:50 am +1 day	8:50 pm — 0:25 am UA377 United Airlines Denver — Chicago 6h 45m stop 7:10 am — 9:50 am UA1643 United Airlines Chicago — Seattle	14h including layover	Find flight from$267
9:44 pm — 8:49 am +1 day	9:44 pm — 11:30 pm UA1412 United Airlines Denver — San Francisco 7h stop 6:30 am — 8:49 am UA1969 United Airlines San Francisco — Seattle	12h 5m including layover	Find flight from$297
10:10 am — 9:11 pm	10:10 am — 11:43 am UA405 United Airlines Denver — Los Angeles 4h 27m stop 4:10 pm — 5:39 pm UA2019 United Airlines Los Angeles — San Francisco 1h 16m stop 6:55 pm — 9:11 pm UA2019 United Airlines San Francisco — Seattle	12h 1m including layover	Find flight from$267

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

*Departure and arrival times are local. Last updated on 05/15/2025

Flight Information

There are 5 flights by United Airlines from Denver to Seattle every week with departures from Denver International and Arapahoe Co. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 10:10 am to 9:44 pm. Nonstop flight is 2h 57m. The time difference between Denver and Seattle is 1h.

The fastest flight 2h 57m
Average flight time 2h 58m
The earliest flight 10:10 am
The latest flight 9:44 pm
Distance 1022 ml

The cheapest months for traveling to Seattle are january (from 140 $), may (from 140 $), february (from 142 $).

The most expensive and popular months are november (from 164 $), december (from 152 $), february (from 142 $).

The cheapest flight by United Airlines that our users were able to find is $157. This airfare is economy class on one-way UA2367 flight for May 25, 2025 leaving Denver International in Denver at 5:00 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 Denver to Seattle:

Other Popular Airlines on the Route

Besides United Airlines there are other 5 airline carriers between Denver and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to Seattle.

Nonstop flights

There are 17 direct flights every day from Denver. Airlines and fares are below:

F9 - Frontier Airlines

from $172

Find
AS - Alaska Airlines

from $169

Find
HA - Hawaiian Airlines

from $165

Find

See more direct flights

Connecting Flights

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

F9 - Frontier Airlines

from $111

Find
AS - Alaska Airlines

from $220

Find
SY - Sun Country Airlines

from $277

Find
HA - Hawaiian Airlines

from $210

Find
G4 - Allegiant Air

from $284

Find

See more connecting flights

How to book an air ticket yourself?

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