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 $110 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 - $110, two-way – $189.

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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 $110. The fastest nonstop flight takes 3h 1m. The fastest connecting flight — 4h 24m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $110 Find flight	7:45 am Denver Denver International	9:53 am Seattle Seattle-Tacoma Intl	3h 8m	United Airlines	UA1399
from $140 Find flight	7:46 am Denver Denver International	9:49 am Seattle Seattle-Tacoma Intl	3h 3m	United Airlines	UA204
from $141 Find flight	8:44 pm Denver Denver International	10:45 pm Seattle Seattle-Tacoma Intl	3h 1m	United Airlines	UA2651
from $152 Find flight	7:00 pm Denver Denver International	9:01 pm Seattle Seattle-Tacoma Intl	3h 1m	United Airlines	UA299
from $153 Find flight	4:01 pm Denver Denver International	6:03 pm Seattle Seattle-Tacoma Intl	3h 2m	United Airlines	UA745
from $155 Find flight	11:50 am Denver Denver International	1:54 pm Seattle Seattle-Tacoma Intl	3h 4m	United Airlines	UA690
from $164 Find flight	4:04 pm Denver Denver International	6:09 pm Seattle Seattle-Tacoma Intl	3h 5m	United Airlines	UA759
from $209 Find flight	11:50 am Denver Denver International	1:57 pm Seattle Seattle-Tacoma Intl	3h 7m	United Airlines	UA2246
from $268 Find flight	11:55 am Denver Denver International	2:00 pm Seattle Seattle-Tacoma Intl	3h 5m	United Airlines	UA316
from $418 Find flight	11:50 am Denver Denver International	1:57 pm Seattle Seattle-Tacoma Intl	3h 7m	United Airlines	UA423
from $116 Find flight	7:45 am Denver Denver International	3:21 pm Seattle Seattle-Tacoma Intl	8h 36m layover 3h 31m - San Francisco	United Airlines	UA2391 UA2391
from $139 Find flight	9:15 am Denver Denver International	3:25 pm Seattle Seattle-Tacoma Intl	7h 10m layover 1h 59m - San Francisco	United Airlines	UA754 UA2650
from $139 Find flight	6:01 am Denver Denver International	12:53 pm Seattle Seattle-Tacoma Intl	7h 52m layover 2h 45m - San Francisco	United Airlines	UA281 UA2315
from $139 Find flight	6:01 am Denver Denver International	11:53 am Seattle Seattle-Tacoma Intl	6h 52m layover 1h 42m - San Francisco	United Airlines	UA281 UA573
from $139 Find flight	9:40 am Denver Denver International	3:18 pm Seattle Seattle-Tacoma Intl	6h 38m layover 1h 35m - San Francisco	United Airlines	UA510 UA2650
from $164 Find flight	6:00 am Denver Denver International	10:46 am Seattle Seattle-Tacoma Intl	5h 46m layover 0h 36m - San Francisco	United Airlines	UA573 UA2849

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 04/24/2025

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
11:50 am — 1:54 pm	11:50 am — 1:54 pm UA690 United Airlines Denver — Seattle	3h 4m	Find flight from$155
11:50 am — 1:57 pm	11:50 am — 1:57 pm UA2246 United Airlines Denver — Seattle	3h 7m	Find flight from$209
11:50 am — 1:57 pm	11:50 am — 1:57 pm UA423 United Airlines Denver — Seattle	3h 7m	Find flight from$418
11:55 am — 2:00 pm	11:55 am — 2:00 pm UA316 United Airlines Denver — Seattle	3h 5m	Find flight from$268
4:01 pm — 6:03 pm	4:01 pm — 6:03 pm UA745 United Airlines Denver — Seattle	3h 2m	Find flight from$153
4:04 pm — 6:09 pm	4:04 pm — 6:09 pm UA759 United Airlines Denver — Seattle	3h 5m	Find flight from$164
7:00 pm — 9:01 pm	7:00 pm — 9:01 pm UA299 United Airlines Denver — Seattle	3h 1m	Find flight from$152
7:45 am — 9:53 am	7:45 am — 9:53 am UA1399 United Airlines Denver — Seattle	3h 8m	Find flight from$110
7:46 am — 9:49 am	7:46 am — 9:49 am UA204 United Airlines Denver — Seattle	3h 3m	Find flight from$140
8:44 pm — 10:45 pm	8:44 pm — 10:45 pm UA2651 United Airlines Denver — Seattle	3h 1m	Find flight from$141
10:15 am — 3:45 pm	10:15 am — 12:04 pm UA2041 United Airlines Denver — San Francisco 1h 21m stop 1:25 pm — 3:45 pm UA593 United Airlines San Francisco — Seattle	6h 30m including layover	Find flight from$165
10:15 am — 9:20 pm	9:47 am — 11:45 am UA2041 United Airlines Denver — San Francisco 6h 56m stop 6:52 pm — 9:09 pm UA2019 United Airlines San Francisco — Seattle	12h 5m including layover	Find flight from$298
1:34 pm — 9:20 pm	1:34 pm — 3:25 pm UA304 United Airlines Denver — San Francisco 3h 35m stop 7:00 pm — 9:20 pm UA2019 United Airlines San Francisco — Seattle	8h 46m including layover	Find flight from$166
1:34 pm — 6:52 pm	1:34 pm — 3:25 pm UA304 United Airlines Denver — San Francisco 1h 7m stop 4:32 pm — 6:52 pm UA2603 United Airlines San Francisco — Seattle	6h 18m including layover	Find flight from$166
3:59 pm — 9:15 pm	3:43 pm — 5:32 pm UA1300 United Airlines Denver — San Francisco 1h 5m stop 6:50 pm — 9:07 pm UA2019 United Airlines San Francisco — Seattle	6h 16m including layover	Find flight from$164
3:59 pm — 11:50 pm	3:43 pm — 5:32 pm UA1300 United Airlines Denver — San Francisco 3h 40m stop 9:29 pm — 11:44 pm UA1971 United Airlines San Francisco — Seattle	8h 51m including layover	Find flight from$176
5:25 pm — 11:44 pm	5:25 pm — 7:14 pm UA1007 United Airlines Denver — San Francisco 2h 15m stop 9:29 pm — 11:44 pm UA1971 United Airlines San Francisco — Seattle	7h 19m including layover	Find flight from$216
5:50 pm — 0:55 am +1 day	5:50 pm — 7:46 pm UA1007 United Airlines Denver — San Francisco 2h 49m stop 10:35 pm — 0:55 am UA1743 United Airlines San Francisco — Seattle	8h 5m including layover	Find flight from$292
6:01 am — 12:53 pm	6:01 am — 7:50 am UA281 United Airlines Denver — San Francisco 2h 45m stop 10:35 am — 12:53 pm UA2315 United Airlines San Francisco — Seattle	7h 52m including layover	Find flight from$139
6:01 am — 11:53 am	6:01 am — 7:50 am UA281 United Airlines Denver — San Francisco 1h 42m stop 9:32 am — 11:53 am UA573 United Airlines San Francisco — Seattle	6h 52m including layover	Find flight from$139
7:45 am — 3:21 pm	7:45 am — 9:32 am UA2391 United Airlines Denver — San Francisco 3h 31m stop 1:03 pm — 3:21 pm UA2391 United Airlines San Francisco — Seattle	8h 36m including layover	Find flight from$116
8:05 am — 10:30 pm	7:45 am — 9:16 am UA1638 United Airlines Denver — Los Angeles 9h 54m stop 7:30 pm — 10:30 pm UA1657 United Airlines Los Angeles — Seattle	15h 25m including layover	Find flight from$255
9:15 am — 3:25 pm	9:06 am — 10:55 am UA754 United Airlines Denver — San Francisco 1h 59m stop 1:00 pm — 3:18 pm UA2650 United Airlines San Francisco — Seattle	7h 10m including layover	Find flight from$139
9:40 am — 3:18 pm	9:40 am — 11:25 am UA510 United Airlines Denver — San Francisco 1h 35m stop 1:00 pm — 3:18 pm UA2650 United Airlines San Francisco — Seattle	6h 38m including layover	Find flight from$139

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

*Departure and arrival times are local. Last updated on 04/24/2025

Flight Information

There are 10 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 9:59 am. Nonstop flight is 3h 1m. The time difference between Denver and Seattle is 1h.

The fastest flight 3h 1m
Average flight time 3h 5m
The earliest flight 10:10 am
The latest flight 9:59 am
Distance 1022 ml

The cheapest months for traveling to Seattle are december (from 110 $), november (from 139 $), january (from 140 $).

The most expensive and popular months are february (from 142 $), january (from 140 $), november (from 139 $).

The cheapest flight by United Airlines that our users were able to find is $110. This airfare is economy class on one-way UA1399 flight for January 3, 2025 leaving Denver International in Denver at 7:45 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:

Boeing 737

from $322

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Boeing 737 MAX 8

from $329

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Boeing 777

from $329

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Airbus A319

from $337

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Boeing 757-200

from $350

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Boeing 757

from $360

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Boeing 737-900

from $383

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Boeing 737-800

from $394

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Boeing 757-300

from $421

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Embraer 175

from $523

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Other Popular Airlines on the Route

Besides United Airlines there are other 7 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 24 direct flights every day from Denver. Airlines and fares are below:

F9 - Frontier Airlines

from $36

Find
DL - Delta Air Lines Inc.

from $123

Find
AS - Alaska Airlines

from $71

Find

See more direct flights

Connecting Flights

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

F9 - Frontier Airlines

from $67

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DL - Delta Air Lines Inc.

from $195

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AA - American Airlines

from $226

Find
AS - Alaska Airlines

from $125

Find
SY - Sun Country Airlines

from $321

Find
Y4 - Volaris

from $604

Find
AM - Aeromexico

from $679

Find

See more connecting flights

How to book an air ticket yourself?

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