Cheap Flights from Denver, CO to Seattle, WA from $76

One way Round trip

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On Cheapflightsplus.com you will find 7 direct and 56 connecting flights from Denver to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $76, book and save on cheap plane tickets and last minute offers. Also check out DEN-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $76 (one-way), $130 (round-trip).

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Best Flights from Denver to Seattle Today

Take a look at the list of non stop flights and flights with layovers from Denver to Seattle with the lowest price of $76. The fastest direct flight takes 2h 57m and the fastest connecting – 4h 51m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $76 Find flight	16:44 Denver Denver International	18:46 Seattle Seattle-Tacoma Intl	3h 2m	Frontier Airlines	F91175
from $82 Find flight	15:03 Denver Denver International	17:00 Seattle Seattle-Tacoma Intl	2h 57m	Hawaiian Airlines	HA4865
from $86 Find flight	15:03 Denver Denver International	17:00 Seattle Seattle-Tacoma Intl	2h 57m	Alaska Airlines	AS535
from $112 Find flight	06:00 Denver Denver International	08:01 Seattle Seattle-Tacoma Intl	3h 1m	United Airlines	UA751
from $134 Find flight	08:08 Denver Denver International	10:08 Seattle Seattle-Tacoma Intl	3h 0m	United Airlines	UA204
from $145 Find flight	13:56 Denver Denver International	15:54 Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA1951
from $183 Find flight	11:20 Denver Denver International	13:18 Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA690
from $108 Find flight	22:29 Denver Denver International	10:02+1 день Seattle Seattle-Tacoma Intl	12h 33m layover 7h 24m - Phoenix	Frontier Airlines	F94753 F91723
from $113 Find flight	11:33 Denver Denver International	15:24 Seattle Seattle-Tacoma Intl	4h 51m layover 1h 10m - Portland	Alaska Airlines	AS1136 AS2188
from $114 Find flight	07:00 Denver Denver International	14:06 Seattle Seattle-Tacoma Intl	8h 6m layover 3h 15m - Las Vegas	Frontier Airlines	F92015 F92407
from $147 Find flight	11:33 Denver Denver International	16:40 Seattle Seattle-Tacoma Intl	6h 7m layover 2h 20m - Portland	Hawaiian Airlines	HA4863 HA6419
from $159 Find flight	16:00 Denver Denver International	20:56 Seattle Seattle-Tacoma Intl	5h 56m layover 0h 57m - San Francisco	United Airlines	UA2633 UA2019
from $256 Find flight	05:30 Denver Denver International	10:48 Seattle Seattle-Tacoma Intl	6h 18m layover 1h 18m - San Francisco	United Airlines	UA2367 UA2367
from $288 Find flight	07:49 Denver Denver International	12:53 Seattle Seattle-Tacoma Intl	6h 4m layover 0h 54m - Ontario	Frontier Airlines	F91261 F93164
from $263 Find flight	08:00 Denver Denver International	22:47 Seattle Seattle-Tacoma Intl	15h 47m layover 6h 18m - Covington 1h 0m - Minneapolis	Allegiant Air	G4411 SY220 SY289
from $290 Find flight	08:00 Denver Denver International	17:11+1 день Seattle Seattle-Tacoma Intl	34h 11m layover 3h 12m - Covington 22h 30m - Minneapolis	Allegiant Air	G4411 SY220 SY285

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on August 01, 2025

Flight Schedule Denver (Colorado) to Seattle (Washington)

Full flight schedule will help you in detecting at what time planes fly from Denver to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
06:00 — 08:01	06:00 — 08:01 UA751 United Airlines Denver — Seattle	3h 1m	Find flight from$112
08:08 — 10:08	08:08 — 10:08 UA204 United Airlines Denver — Seattle	3h	Find flight from$134
11:20 — 13:18	11:20 — 13:18 UA690 United Airlines Denver — Seattle	2h 58m	Find flight from$183
13:56 — 15:54	13:56 — 15:54 UA1951 United Airlines Denver — Seattle	2h 58m	Find flight from$145
15:03 — 17:00	15:03 — 17:00 HA4865 Hawaiian Airlines Denver — Seattle	2h 57m	Find flight from$82
15:03 — 17:00	15:03 — 17:00 AS535 Alaska Airlines Denver — Seattle	2h 57m	Find flight from$86
16:44 — 18:46	16:44 — 18:46 F91175 Frontier Airlines Denver — Seattle	3h 2m	Find flight from$76
05:30 — 10:48	05:30 — 07:12 UA2367 United Airlines Denver — San Francisco 1h 18m stop 08:30 — 10:48 UA2367 United Airlines San Francisco — Seattle	6h 18m including layover	Find flight from$256
05:35 — 13:46	05:25 — 06:58 UA1093 United Airlines Denver — Los Angeles 3h 46m stop 10:54 — 13:46 UA357 United Airlines Los Angeles — Seattle	9h 11m including layover	Find flight from$313
07:00 — 14:06	06:00 — 07:09 F92015 Frontier Airlines Denver — Las Vegas 3h 15m stop 15:44 — 18:38 F92407 Frontier Airlines Las Vegas — Seattle	8h 6m including layover	Find flight from$114
07:49 — 12:53	07:49 — 09:09 F91261 Frontier Airlines Denver — Ontario 54m stop 10:03 — 12:53 F93164 Frontier Airlines Ontario — Seattle	6h 4m including layover	Find flight from$288
11:33 — 15:24	11:33 — 13:20 AS1136 Alaska Airlines Denver — Portland 1h 10m stop 14:30 — 15:24 AS2188 Alaska Airlines Portland — Seattle	4h 51m including layover	Find flight from$113
11:33 — 16:40	11:33 — 13:20 HA4863 Hawaiian Airlines Denver — Portland 2h 20m stop 15:40 — 16:40 HA6419 Hawaiian Airlines Portland — Seattle	6h 7m including layover	Find flight from$147
12:09 — 22:47	12:09 — 15:06 SY654 Sun Country Airlines Denver — Minneapolis 5h 54m stop 21:00 — 22:47 SY289 Sun Country Airlines Minneapolis — Seattle	11h 38m including layover	Find flight from$396
12:09 — 07:59 +1 day	12:09 — 15:06 SY654 Sun Country Airlines Denver — Minneapolis 15h 6m stop 06:12 — 07:59 SY281 Sun Country Airlines Minneapolis — Seattle	20h 50m including layover	Find flight from$413
13:33 — 14:06 +1 day	13:33 — 14:40 F92349 Frontier Airlines Denver — Las Vegas 20h 34m stop 11:14 — 14:06 F92407 Frontier Airlines Las Vegas — Seattle	25h 33m including layover	Find flight from$294
16:00 — 20:56	16:00 — 17:51 UA2633 United Airlines Denver — San Francisco 57m stop 18:55 — 21:11 UA2019 United Airlines San Francisco — Seattle	5h 56m including layover	Find flight from$159
17:51 — 14:06 +1 day	17:51 — 18:56 F94967 Frontier Airlines Denver — Las Vegas 16h 18m stop 11:14 — 14:06 F92407 Frontier Airlines Las Vegas — Seattle	21h 15m including layover	Find flight from$317
18:12 — 07:59 +1 day	18:12 — 21:13 SY658 Sun Country Airlines Denver — Minneapolis 8h 59m stop 06:12 — 07:59 SY281 Sun Country Airlines Minneapolis — Seattle	14h 47m including layover	Find flight from$394
18:12 — 22:47 +1 day	18:12 — 21:13 SY658 Sun Country Airlines Denver — Minneapolis 23h 47m stop 21:00 — 22:47 SY289 Sun Country Airlines Minneapolis — Seattle	29h 35m including layover	Find flight from$435
19:06 — 23:02	19:06 — 20:50 HA4864 Hawaiian Airlines Denver — Portland 1h 9m stop 21:59 — 23:02 HA6414 Hawaiian Airlines Portland — Seattle	4h 56m including layover	Find flight from$518
19:25 — 00:59 +1 day	19:25 — 21:12 UA2681 United Airlines Denver — San Francisco 1h 43m stop 22:55 — 00:59 UA2400 United Airlines San Francisco — Seattle	6h 34m including layover	Find flight from$494
21:15 — 08:34 +1 day	21:15 — 00:24 F92632 Frontier Airlines Denver — Dallas 5h 46m stop 06:10 — 08:34 F94065 Frontier Airlines Dallas — Seattle	12h 19m including layover	Find flight from$361
22:29 — 10:02 +1 day	22:29 — 23:27 F94753 Frontier Airlines Denver — Phoenix 7h 24m stop 06:48 — 10:04 F91723 Frontier Airlines Phoenix — Seattle	12h 33m including layover	Find flight from$108
22:29 — 12:53 +1 day	22:29 — 23:50 F91499 Frontier Airlines Denver — Ontario 10h 13m stop 10:03 — 12:53 F93164 Frontier Airlines Ontario — Seattle	15h 24m including layover	Find flight from$294
23:54 — 10:37 +1 day	23:54 — 05:36 UA1745 United Airlines Denver — Newark 1h 54m stop 08:19 — 11:29 UA1330 United Airlines Newark — Seattle	11h 43m including layover	Find flight from$573
08:00 — 22:47	08:00 — 12:44 G4411 Allegiant Air Denver — Covington 6h 18m stop 18:30 — 19:30 SY220 Sun Country Airlines Covington — Minneapolis 1h stop 21:00 — 22:50 SY289 Sun Country Airlines Minneapolis — Seattle	15h 47m including layover	Find flight from$263
20:05 — 16:25 +1 day	16:00 — 19:01 SY658 Sun Country Airlines Denver — Minneapolis 9h 24m stop 08:24 — 09:45 SY103 Sun Country Airlines Minneapolis — Las Vegas 3h 49m stop 13:40 — 16:25 NK1681 Spirit Airlines Las Vegas — Seattle	21h 20m including layover	Find flight from$325
20:55 — 16:25 +1 day	20:55 — 23:52 SY1610 Sun Country Airlines Denver — Minneapolis 8h 38m stop 08:30 — 09:51 SY103 Sun Country Airlines Minneapolis — Las Vegas 3h 49m stop 13:40 — 16:25 NK1681 Spirit Airlines Las Vegas — Seattle	20h 30m including layover	Find flight from$531
23:59 — 00:59 +2 days	23:59 — 06:01 UA2610 United Airlines Denver — Boston 12h 10m stop 18:11 — 21:49 UA2400 United Airlines Boston — San Francisco 1h 6m stop 22:55 — 00:59 UA2400 United Airlines San Francisco — Seattle	26h including layover	Find flight from$739

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

*Departure and arrival times - local. Updated on August 1, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Denver and Seattle is 1644 miles. Time difference between the cities is 1h. Airplanes depart 05:02 to 23:59 from 2 Denver airports and arrive 05:02 to 23:59 to 3 Seattle airports. Average flight time is 2h 58m.

The fastest flight 2h 57m
Average flight time 2h 58m
The earliest flight 05:02
The latest flight 23:59
Distance 1022 ml

The cheapest months to travel to Seattle are august (from 76 $), july (from 99 $), may (from 104 $).

The most expensive months are november (from 197 $), february (from 147 $), january (from 144 $).

What is the lowest airfare Denver to Seattle?

The cheapest plane ticket found by our users is $76. This airfare is for economy class on one-way F91175 flight by Frontier Airlines for August 15, 2025 which leaves Denver International in Denver at 16:44 am and arrives at Seattle Seattle-Tacoma Intl at 18:46.

Economy class

$76

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Business class

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First class

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Popular Airlines on the Route

The flight Denver — Seattle is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 11 departures per week at the price of from $ 76 . And the most expensive tickets are offered by United Airlines airline - from $ 1688.

Direct flights

There are 7 nonstop flights on the route. The fastest direct flight is HA4865 by Hawaiian Airlines takes 2h 57m and the cheapest is F91175 by Frontier Airlines for $76.

F9 - Frontier Airlines

from $76

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UA - United Airlines

from $112

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AS - Alaska Airlines

from $86

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HA - Hawaiian Airlines

from $82

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Connecting Flights

There are 56 flights with layovers on the route. The fastest connecting flight is AS1136 by Alaska Airlines takes 4h 51m and the cheapest is F91175 by Frontier Airlines for $108.

F9 - Frontier Airlines

from $108

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UA - United Airlines

from $159

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AS - Alaska Airlines

from $113

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SY - Sun Country Airlines

from $325

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HA - Hawaiian Airlines

from $147

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G4 - Allegiant Air

from $263

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Airports

You can fly from Denver to Seattle from 2 airports (Denver International, Arapahoe Co).

Denver airports

Denver International-DEN

from $76
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Arapahoe Co-APA

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Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

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Kenmore Air Harbor SPB-LKE

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Airplanes

There are flights to Seattle from Denver by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Denver

You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.

Denver — Las Vegas

from $70

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Denver — Phoenix

from $59

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Denver — Boston

from $68

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Denver — Seattle

from $75

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Denver — Orlando

from $74

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Denver — Chicago

from $66

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Denver — Miami

from $68

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Denver — Tampa

from $57

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Denver — Los Angeles

from $17

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Denver — Houston

from $67

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Top International Destinations from Denver

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Denver — Cancun

from $66

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Denver — London

from $63

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Denver — Tokyo

from $75

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Denver — Vancouver

from $60

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Denver — Toronto

from $60

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Denver — Paris

from $75

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Denver — Mexico City

from $66

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Denver — Calgary

from $68

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Denver — Dublin

from $69

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Denver — San Jose

from $72

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.