Cheap Flights from Denver, CO to Seattle, WA from $111

One way Round trip

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On Cheapflightsplus.com you will find 17 direct and 58 connecting flights from Denver to Seattle. You can compare airfare deals from 6 airlines and multiple travel sites from $111, 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: $111 (one-way), $190 (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 $111. The fastest direct flight takes 2h 55m and the fastest connecting – 4h 41m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $165 Find flight	06:00 Denver Denver International	07:59 Seattle Seattle-Tacoma Intl	2h 59m	Hawaiian Airlines	HA4850
from $169 Find flight	06:00 Denver Denver International	07:59 Seattle Seattle-Tacoma Intl	2h 59m	Alaska Airlines	AS643
from $172 Find flight	16:08 Denver Denver International	18:15 Seattle Seattle-Tacoma Intl	3h 7m	Frontier Airlines	F91175
from $172 Find flight	22:29 Denver Denver International	00:37+1 день Seattle Seattle-Tacoma Intl	3h 8m	Frontier Airlines	F93405
from $221 Find flight	20:32 Denver Denver International	22:30 Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA2651
from $238 Find flight	08:00 Denver Denver International	09:59 Seattle Seattle-Tacoma Intl	2h 59m	Alaska Airlines	AS525
from $266 Find flight	08:00 Denver Denver International	09:59 Seattle Seattle-Tacoma Intl	2h 59m	Hawaiian Airlines	HA4868
from $282 Find flight	12:56 Denver Denver International	14:55 Seattle Seattle-Tacoma Intl	2h 59m	Alaska Airlines	AS427
from $311 Find flight	19:11 Denver Denver International	21:08 Seattle Seattle-Tacoma Intl	2h 57m	United Airlines	UA299
from $323 Find flight	12:56 Denver Denver International	14:55 Seattle Seattle-Tacoma Intl	2h 59m	Hawaiian Airlines	HA4869
from $403 Find flight	11:30 Denver Denver International	13:28 Seattle Seattle-Tacoma Intl	2h 58m	United Airlines	UA690
from $111 Find flight	07:51 Denver Denver International	13:03 Seattle Seattle-Tacoma Intl	6h 12m layover 0h 48m - Ontario	Frontier Airlines	F91261 F93164
from $116 Find flight	22:29 Denver Denver International	13:03+1 день Seattle Seattle-Tacoma Intl	15h 34m layover 10h 12m - Ontario	Frontier Airlines	F91499 F93164
from $157 Find flight	05:00 Denver Denver International	11:21 Seattle Seattle-Tacoma Intl	7h 21m layover 2h 22m - San Francisco	United Airlines	UA2367 UA1417
from $157 Find flight	22:39 Denver Denver International	09:59+1 день Seattle Seattle-Tacoma Intl	12h 20m layover 7h 2m - Phoenix	Frontier Airlines	F94753 F93973
from $210 Find flight	11:40 Denver Denver International	18:32 Seattle Seattle-Tacoma Intl	7h 52m layover 4h 20m - Portland	Hawaiian Airlines	HA4863 HA6402

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 12, 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 — 07:59	06:00 — 07:59 HA4850 Hawaiian Airlines Denver — Seattle	2h 59m	Find flight from$165
06:00 — 07:59	06:00 — 07:59 AS643 Alaska Airlines Denver — Seattle	2h 59m	Find flight from$169
08:00 — 09:59	08:00 — 09:59 AS525 Alaska Airlines Denver — Seattle	2h 59m	Find flight from$238
08:00 — 09:59	08:00 — 09:59 HA4868 Hawaiian Airlines Denver — Seattle	2h 59m	Find flight from$266
08:08 — 10:08	08:08 — 10:08 UA204 United Airlines Denver — Seattle	3h	Find flight from$403
11:30 — 13:28	11:30 — 13:28 UA690 United Airlines Denver — Seattle	2h 58m	Find flight from$403
12:56 — 14:55	12:56 — 14:55 AS427 Alaska Airlines Denver — Seattle	2h 59m	Find flight from$282
12:56 — 14:55	12:56 — 14:55 HA4869 Hawaiian Airlines Denver — Seattle	2h 59m	Find flight from$323
14:58 — 16:58	14:58 — 16:58 HA4865 Hawaiian Airlines Denver — Seattle	3h	Find flight from$281
14:58 — 16:58	14:58 — 16:58 AS426 Alaska Airlines Denver — Seattle	3h	Find flight from$282
16:08 — 18:15	16:08 — 18:15 F91175 Frontier Airlines Denver — Seattle	3h 7m	Find flight from$172
16:15 — 18:14	16:15 — 18:14 UA745 United Airlines Denver — Seattle	2h 59m	Find flight from$403
17:49 — 19:44	17:49 — 19:44 HA4867 Hawaiian Airlines Denver — Seattle	2h 55m	Find flight from$437
17:49 — 19:44	17:49 — 19:44 AS605 Alaska Airlines Denver — Seattle	2h 55m	Find flight from$437
19:11 — 21:08	19:11 — 21:08 UA299 United Airlines Denver — Seattle	2h 57m	Find flight from$311
20:32 — 22:30	20:32 — 22:30 UA2651 United Airlines Denver — Seattle	2h 58m	Find flight from$221
22:29 — 00:37 +1 day	22:29 — 00:37 F93405 Frontier Airlines Denver — Seattle	3h 8m	Find flight from$172
05:00 — 11:21	05:00 — 06:42 UA2367 United Airlines Denver — San Francisco 2h 22m stop 09:04 — 11:21 UA1417 United Airlines San Francisco — Seattle	7h 21m including layover	Find flight from$157
05:00 — 00:59 +1 day	05:00 — 06:42 UA2367 United Airlines Denver — San Francisco 16h 8m stop 22:50 — 00:59 UA573 United Airlines San Francisco — Seattle	20h 59m including layover	Find flight from$241
07:51 — 13:03	08:20 — 09:46 F91261 Frontier Airlines Denver — Ontario 48m stop 07:58 — 10:54 F93164 Frontier Airlines Ontario — Seattle	6h 12m including layover	Find flight from$111
07:52 — 21:58	07:52 — 09:25 UA1638 United Airlines Denver — Los Angeles 9h 42m stop 19:07 — 21:58 UA684 United Airlines Los Angeles — Seattle	15h 6m including layover	Find flight from$255
10:10 — 21:58	10:10 — 11:43 UA405 United Airlines Denver — Los Angeles 7h 24m stop 19:07 — 21:58 UA684 United Airlines Los Angeles — Seattle	12h 48m including layover	Find flight from$255
11:40 — 18:32	11:40 — 13:10 HA4863 Hawaiian Airlines Denver — Portland 4h 20m stop 17:30 — 18:32 HA6402 Hawaiian Airlines Portland — Seattle	7h 52m including layover	Find flight from$210
11:40 — 21:41	11:40 — 13:10 HA4863 Hawaiian Airlines Denver — Portland 7h 35m stop 20:45 — 21:41 HA6399 Hawaiian Airlines Portland — Seattle	11h 1m including layover	Find flight from$210
13:25 — 21:58	13:35 — 15:09 UA1252 United Airlines Denver — Los Angeles 4h 9m stop 19:30 — 22:30 UA684 United Airlines Los Angeles — Seattle	9h 33m including layover	Find flight from$255
13:26 — 21:11	13:26 — 15:10 UA1812 United Airlines Denver — San Francisco 3h 45m stop 18:55 — 21:11 UA2019 United Airlines San Francisco — Seattle	8h 45m including layover	Find flight from$248
15:45 — 21:58	15:45 — 17:18 UA564 United Airlines Denver — Los Angeles 1h 49m stop 19:07 — 21:58 UA684 United Airlines Los Angeles — Seattle	7h 13m including layover	Find flight from$295
17:46 — 14:16 +1 day	17:46 — 18:55 F94967 Frontier Airlines Denver — Las Vegas 16h 24m stop 11:19 — 14:16 F92407 Frontier Airlines Las Vegas — Seattle	21h 30m including layover	Find flight from$289
17:59 — 00:59 +1 day	17:59 — 19:45 UA1007 United Airlines Denver — San Francisco 3h 5m stop 22:50 — 00:59 UA573 United Airlines San Francisco — Seattle	8h including layover	Find flight from$250
18:30 — 08:14 +1 day	18:30 — 21:34 SY658 Sun Country Airlines Denver — Minneapolis 8h 56m stop 06:30 — 08:14 SY281 Sun Country Airlines Minneapolis — Seattle	14h 44m including layover	Find flight from$277
19:05 — 12:55 +1 day	19:05 — 20:50 HA4864 Hawaiian Airlines Denver — Portland 15h 8m stop 11:58 — 12:55 HA6228 Hawaiian Airlines Portland — Seattle	18h 50m including layover	Find flight from$276
19:51 — 08:19 +1 day	19:51 — 23:13 F92632 Frontier Airlines Denver — Dallas 6h 47m stop 06:00 — 08:19 F94065 Frontier Airlines Dallas — Seattle	13h 28m including layover	Find flight from$261
20:50 — 09:50 +1 day	20:50 — 00:25 UA377 United Airlines Denver — Chicago 6h 45m stop 07:10 — 09:50 UA1643 United Airlines Chicago — Seattle	14h including layover	Find flight from$267
21:44 — 08:49 +1 day	21:44 — 23:30 UA1412 United Airlines Denver — San Francisco 7h stop 06:30 — 08:49 UA1969 United Airlines San Francisco — Seattle	12h 5m including layover	Find flight from$297
22:29 — 13:03 +1 day	22:29 — 23:51 F91499 Frontier Airlines Denver — Ontario 10h 12m stop 10:03 — 13:03 F93164 Frontier Airlines Ontario — Seattle	15h 34m including layover	Find flight from$116
22:39 — 09:59 +1 day	22:39 — 23:41 F94753 Frontier Airlines Denver — Phoenix 7h 2m stop 06:43 — 09:59 F93973 Frontier Airlines Phoenix — Seattle	12h 20m including layover	Find flight from$157
10:10 — 21:11	10:10 — 11:43 UA405 United Airlines Denver — Los Angeles 4h 27m stop 16:10 — 17:39 UA2019 United Airlines Los Angeles — San Francisco 1h 16m stop 18:55 — 21:11 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 - local. Updated on May 12, 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 05:00 to 23:59 from 2 Denver airports and arrive 05:00 to 23:59 to 3 Seattle airports. Average flight time is 2h 59m.

The fastest flight 2h 55m
Average flight time 2h 59m
The earliest flight 05:00
The latest flight 23:59
Distance 1022 ml

The cheapest months to travel to Seattle are november (from 67 $), may (from 67 $), december (from 70 $).

The most expensive months are february (from 142 $), january (from 98 $), december (from 70 $).

What is the lowest airfare Denver to Seattle?

The cheapest plane ticket found by our users is $111. This airfare is for economy class on one-way F91261 flight by Frontier Airlines for May 25, 2025 which leaves Denver International in Denver at 07:51 am and arrives at Seattle Seattle-Tacoma Intl at 13:03.

Economy class

$111

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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 $ 111 . And the most expensive tickets are offered by United Airlines airline - from $ 987.

Direct flights

There are 17 nonstop flights on the route. The fastest direct flight is HA4867 by Hawaiian Airlines takes 2h 55m and the cheapest is F91261 by Frontier Airlines for $165.

F9 - Frontier Airlines

from $172

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UA - United Airlines

from $221

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AS - Alaska Airlines

from $169

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HA - Hawaiian Airlines

from $165

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Connecting Flights

There are 58 flights with layovers on the route. The fastest connecting flight is AS350 by Alaska Airlines takes 4h 41m and the cheapest is F91261 by Frontier Airlines for $111.

F9 - Frontier Airlines

from $111

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UA - United Airlines

from $157

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AS - Alaska Airlines

from $220

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SY - Sun Country Airlines

from $277

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HA - Hawaiian Airlines

from $210

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G4 - Allegiant Air

from $284

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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 $111
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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.
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