United Airlines Denver to Seattle Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap United Airlines flights from Denver to Seattle. Compare airline ticket prices and book air tickets starting from $112 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 august: one-way - $112, two-way – $192.

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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 $112. The fastest nonstop flight takes 2h 58m. The fastest connecting flight — 5h 56m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $112 Find flight	6:00 am Denver Denver International	8:01 am Seattle Seattle-Tacoma Intl	3h 1m	United Airlines	UA751
from $134 Find flight	8:08 am Denver Denver International	10:08 am Seattle Seattle-Tacoma Intl	3h 0m	United Airlines	UA204
from $145 Find flight	1:56 pm Denver Denver International	3:54 pm Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA1951
from $160 Find flight	11:20 am Denver Denver International	1:18 pm Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA690
from $159 Find flight	4:00 pm Denver Denver International	8:56 pm Seattle Seattle-Tacoma Intl	5h 56m layover 0h 57m - San Francisco	United Airlines	UA2633 UA2019
from $256 Find flight	5:30 am Denver Denver International	10:48 am Seattle Seattle-Tacoma Intl	6h 18m layover 1h 18m - San Francisco	United Airlines	UA2367 UA2367
from $313 Find flight	5:35 am Denver Denver International	1:46 pm Seattle Seattle-Tacoma Intl	9h 11m layover 3h 46m - Los Angeles	United Airlines	UA1093 UA357
from $357 Find flight	8:02 am Denver Denver International	1:25 pm Seattle Seattle-Tacoma Intl	6h 23m layover 1h 25m - San Francisco	United Airlines	UA1493 UA433
from $494 Find flight	3:40 pm Denver Denver International	10:16 pm Seattle Seattle-Tacoma Intl	7h 36m layover 2h 12m - Los Angeles	United Airlines	UA564 UA684
from $494 Find flight	7:25 pm Denver Denver International	0:59 am+1 день Seattle Seattle-Tacoma Intl	6h 34m layover 1h 43m - San Francisco	United Airlines	UA2681 UA2400
from $571 Find flight	8:01 am Denver Denver International	1:46 pm Seattle Seattle-Tacoma Intl	6h 45m layover 1h 20m - Los Angeles	United Airlines	UA1638 UA357
from $573 Find flight	11:54 pm Denver Denver International	10:37 am+1 день Seattle Seattle-Tacoma Intl	11h 43m layover 1h 54m - Newark	United Airlines	UA1745 UA1330
from $997 Find flight	5:02 am Denver Denver International	12:46 pm Seattle Seattle-Tacoma Intl	8h 44m layover 1h 26m - Houston	United Airlines	UA320 UA2606
from $1688 Find flight	11:24 am Denver Denver International	4:50 pm Seattle Seattle-Tacoma Intl	6h 26m layover 1h 41m - Las Vegas	United Airlines	UA526 AS676

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 08/21/2025

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
11:20 am — 1:18 pm	11:20 am — 1:18 pm UA690 United Airlines Denver — Seattle	2h 58m	Find flight from$160
11:24 am — 4:50 pm	11:24 am — 12:23 pm UA526 United Airlines Denver — Las Vegas 1h 41m stop 2:04 pm — 4:50 pm AS676 Alaska Airlines Las Vegas — Seattle	6h 26m including layover	Find flight from$1688
11:54 pm — 10:37 am +1 day	11:54 pm — 5:36 am UA1745 United Airlines Denver — Newark 1h 54m stop 8:19 am — 11:29 am UA1330 United Airlines Newark — Seattle	11h 43m including layover	Find flight from$573
1:56 pm — 3:54 pm	1:56 pm — 3:54 pm UA1951 United Airlines Denver — Seattle	2h 58m	Find flight from$145
3:40 pm — 10:16 pm	3:40 pm — 5:13 pm UA564 United Airlines Denver — Los Angeles 2h 12m stop 7:25 pm — 10:16 pm UA684 United Airlines Los Angeles — Seattle	7h 36m including layover	Find flight from$494
4:00 pm — 8:56 pm	4:00 pm — 5:51 pm UA2633 United Airlines Denver — San Francisco 57m stop 6:55 pm — 9:11 pm UA2019 United Airlines San Francisco — Seattle	5h 56m including layover	Find flight from$159
5:02 am — 12:46 pm	5:02 am — 8:31 am UA320 United Airlines Denver — Houston 1h 26m stop 9:57 am — 12:46 pm UA2606 United Airlines Houston — Seattle	8h 44m including layover	Find flight from$997
5:30 am — 10:48 am	5:30 am — 7:12 am UA2367 United Airlines Denver — San Francisco 1h 18m stop 8:30 am — 10:48 am UA2367 United Airlines San Francisco — Seattle	6h 18m including layover	Find flight from$256
5:35 am — 1:46 pm	5:25 am — 6:58 am UA1093 United Airlines Denver — Los Angeles 3h 46m stop 10:54 am — 1:46 pm UA357 United Airlines Los Angeles — Seattle	9h 11m including layover	Find flight from$313
6:00 am — 8:01 am	6:00 am — 8:01 am UA751 United Airlines Denver — Seattle	3h 1m	Find flight from$112
7:25 pm — 0:59 am +1 day	7:25 pm — 9:12 pm UA2681 United Airlines Denver — San Francisco 1h 43m stop 10:55 pm — 0:59 am UA2400 United Airlines San Francisco — Seattle	6h 34m including layover	Find flight from$494
8:01 am — 1:46 pm	8:01 am — 9:34 am UA1638 United Airlines Denver — Los Angeles 1h 20m stop 10:54 am — 1:46 pm UA357 United Airlines Los Angeles — Seattle	6h 45m including layover	Find flight from$571
8:02 am — 1:25 pm	8:02 am — 9:45 am UA1493 United Airlines Denver — San Francisco 1h 25m stop 11:10 am — 1:25 pm UA433 United Airlines San Francisco — Seattle	6h 23m including layover	Find flight from$357
8:08 am — 10:08 am	8:08 am — 10:08 am UA204 United Airlines Denver — Seattle	3h	Find flight from$134

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

*Departure and arrival times are local. Last updated on 08/21/2025

Flight Information

There are 4 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 11:20 am to 8:08 am. Nonstop flight is 2h 58m. The time difference between Denver and Seattle is 1h.

The fastest flight 2h 58m
Average flight time 2h 59m
The earliest flight 11:20 am
The latest flight 8:08 am
Distance 1022 ml

The cheapest months for traveling to Seattle are august (from 112 $), june (from 124 $), january (from 144 $).

The most expensive and popular months are may (from 156 $), february (from 147 $), july (from 145 $).

The cheapest flight by United Airlines that our users were able to find is $112. This airfare is economy class on one-way UA751 flight for July 27, 2025 leaving Denver International in Denver at 6:00 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 7 direct flights every day from Denver. Airlines and fares are below:

F9 - Frontier Airlines

from $76

Find
AS - Alaska Airlines

from $86

Find
HA - Hawaiian Airlines

from $82

Find

See more direct flights

Connecting Flights

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

F9 - Frontier Airlines

from $102

Find
AS - Alaska Airlines

from $113

Find
SY - Sun Country Airlines

from $334

Find
HA - Hawaiian Airlines

from $147

Find
G4 - Allegiant Air

from $263

Find

See more connecting flights

How to book an air ticket yourself?

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