Cheap Flights from Seattle, WA to Denver, CO from $30

One way Round trip

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On Cheapflightsplus.com you will find 6 direct and 18 connecting flights from Seattle to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $30, book and save on cheap plane tickets and last minute offers. Also check out SEA-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Denver 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: $30 (one-way), $51 (round-trip).

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Best Flights from Seattle to Denver Today

Take a look at the list of non stop flights and flights with layovers from Seattle to Denver with the lowest price of $30. The fastest direct flight takes 2h 38m and the fastest connecting – 4h 52m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $30 Find flight	22:08 Seattle Seattle-Tacoma Intl	01:51+1 день Denver Denver International	2h 43m	Frontier Airlines	F91176
from $91 Find flight	05:02 Seattle Seattle-Tacoma Intl	08:44 Denver Denver International	2h 42m	United Airlines	UA2269
from $94 Find flight	12:34 Seattle Seattle-Tacoma Intl	16:12 Denver Denver International	2h 38m	Alaska Airlines	AS602
from $106 Find flight	15:21 Seattle Seattle-Tacoma Intl	18:59 Denver Denver International	2h 38m	Alaska Airlines	AS524
from $138 Find flight	19:13 Seattle Seattle-Tacoma Intl	22:57 Denver Denver International	2h 44m	United Airlines	UA1387
from $230 Find flight	12:46 Seattle Seattle-Tacoma Intl	16:31 Denver Denver International	2h 45m	United Airlines	UA423
from $58 Find flight	19:51 Seattle Seattle-Tacoma Intl	12:09+1 день Denver Denver International	15h 18m layover 10h 26m - Las Vegas	Frontier Airlines	F94830 F92016
from $86 Find flight	17:21 Seattle Seattle-Tacoma Intl	07:53+1 день Denver Denver International	13h 32m layover 7h 2m - Dallas	Frontier Airlines	F94066 F93365
from $136 Find flight	09:20 Seattle Seattle-Tacoma Intl	18:05 Denver Denver International	7h 45m layover 2h 46m - San Francisco	United Airlines	UA1960 UA1691
from $143 Find flight	15:04 Seattle Seattle-Tacoma Intl	22:28 Denver Denver International	6h 24m layover 1h 17m - Los Angeles	United Airlines	UA2610 UA2610
from $148 Find flight	08:05 Seattle Seattle-Tacoma Intl	13:57 Denver Denver International	4h 52m layover 1h 21m - Portland	Alaska Airlines	AS3362 AS336
from $148 Find flight	16:58 Seattle Seattle-Tacoma Intl	23:45 Denver Denver International	5h 47m layover 0h 55m - San Francisco	United Airlines	UA2482 UA624
from $148 Find flight	15:24 Seattle Seattle-Tacoma Intl	23:45 Denver Denver International	7h 21m layover 2h 23m - San Francisco	United Airlines	UA589 UA624
from $148 Find flight	12:37 Seattle Seattle-Tacoma Intl	21:45 Denver Denver International	8h 8m layover 3h 10m - San Francisco	United Airlines	UA1482 UA297
from $239 Find flight	12:37 Seattle Seattle-Tacoma Intl	19:40 Denver Denver International	6h 3m layover 1h 5m - San Francisco	United Airlines	UA1482 UA566
from $210 Find flight	18:37 Seattle Seattle-Tacoma Intl	09:08+1 день Denver Denver International	13h 31m layover 2h 48m - Las Vegas 2h 43m - Minneapolis	Spirit Airlines	NK782 SY778 SY651

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on February 22, 2025

Flight Schedule Seattle (Washington) to Denver (Colorado)

Full flight schedule will help you in detecting at what time planes fly from Seattle to Denver. 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
05:02 — 08:44	05:02 — 08:44 UA2269 United Airlines Seattle — Denver	2h 42m	Find flight from$91
12:34 — 16:12	12:34 — 16:12 AS602 Alaska Airlines Seattle — Denver	2h 38m	Find flight from$94
12:46 — 16:31	12:46 — 16:31 UA423 United Airlines Seattle — Denver	2h 45m	Find flight from$230
15:21 — 18:59	15:21 — 18:59 AS524 Alaska Airlines Seattle — Denver	2h 38m	Find flight from$106
19:13 — 22:57	19:13 — 22:57 UA1387 United Airlines Seattle — Denver	2h 44m	Find flight from$138
22:08 — 01:51 +1 day	22:08 — 01:51 F91176 Frontier Airlines Seattle — Denver	2h 43m	Find flight from$30
06:15 — 14:41	06:15 — 09:01 UA1571 United Airlines Seattle — Los Angeles 2h 14m stop 11:15 — 14:41 UA393 United Airlines Los Angeles — Denver	7h 26m including layover	Find flight from$276
06:15 — 18:15	06:15 — 09:01 UA1571 United Airlines Seattle — Los Angeles 5h 48m stop 14:49 — 18:15 UA756 United Airlines Los Angeles — Denver	11h including layover	Find flight from$276
07:15 — 18:05	07:05 — 09:25 UA1403 United Airlines Seattle — San Francisco 4h 49m stop 14:40 — 18:20 UA1691 United Airlines San Francisco — Denver	9h 50m including layover	Find flight from$246
08:05 — 13:57	08:05 — 08:58 AS3362 Alaska Airlines Seattle — Portland 1h 21m stop 10:19 — 13:57 AS336 Alaska Airlines Portland — Denver	4h 52m including layover	Find flight from$148
09:20 — 18:05	09:20 — 11:39 UA1960 United Airlines Seattle — San Francisco 2h 46m stop 14:40 — 18:20 UA1691 United Airlines San Francisco — Denver	7h 45m including layover	Find flight from$136
12:37 — 21:45	12:37 — 14:55 UA1482 United Airlines Seattle — San Francisco 3h 10m stop 18:05 — 21:45 UA297 United Airlines San Francisco — Denver	8h 8m including layover	Find flight from$148
15:04 — 22:28	15:04 — 17:48 UA2610 United Airlines Seattle — Los Angeles 1h 17m stop 19:05 — 22:28 UA2610 United Airlines Los Angeles — Denver	6h 24m including layover	Find flight from$143
16:58 — 23:45	16:58 — 19:10 UA2482 United Airlines Seattle — San Francisco 55m stop 20:05 — 23:45 UA624 United Airlines San Francisco — Denver	5h 47m including layover	Find flight from$148
17:21 — 07:53 +1 day	17:21 — 23:31 F94066 Frontier Airlines Seattle — Dallas 7h 2m stop 06:33 — 07:53 F93365 Frontier Airlines Dallas — Denver	13h 32m including layover	Find flight from$86
19:51 — 12:09 +1 day	14:55 — 17:32 F94830 Frontier Airlines Seattle — Las Vegas 10h 26m stop 08:18 — 11:19 F92016 Frontier Airlines Las Vegas — Denver	15h 18m including layover	Find flight from$58
19:51 — 14:31 +1 day	14:55 — 17:32 F94830 Frontier Airlines Seattle — Las Vegas 12h 41m stop 11:00 — 14:06 F92350 Frontier Airlines Las Vegas — Denver	17h 40m including layover	Find flight from$86
21:58 — 10:25 +1 day	21:58 — 04:50 Y41851 Volaris Seattle — Guadalajara 3h 6m stop 07:56 — 10:25 Y41760 Volaris Guadalajara — Denver	11h 27m including layover	Find flight from$393
21:58 — 11:10 +1 day	21:58 — 04:50 Y41851 Volaris Seattle — Guadalajara 3h 55m stop 08:45 — 11:10 AM468 Aeromexico Guadalajara — Denver	12h 12m including layover	Find flight from$508
18:37 — 09:08 +1 day	18:37 — 21:11 NK782 Spirit Airlines Seattle — Las Vegas 2h 48m stop 23:59 — 05:04 SY778 Sun Country Airlines Las Vegas — Minneapolis 2h 43m stop 07:47 — 09:08 SY651 Sun Country Airlines Minneapolis — Denver	13h 31m including layover	Find flight from$210

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

*Departure and arrival times - local. Updated on February 22, 2025

Flight Information

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

Distance between Seattle and Denver is 1644 miles. Time difference between the cities is 1h. Airplanes depart 05:02 to 22:08 from 3 Seattle airports and arrive 05:02 to 22:08 to 2 Denver airports. Average flight time is 2h 43m.

The fastest flight 2h 38m
Average flight time 2h 43m
The earliest flight 05:02
The latest flight 22:08
Distance 1022 ml

The cheapest months to travel to Denver are november (from 30 $), december (from 58 $), february (from 60 $).

The most expensive months are january (from 116 $), february (from 60 $), december (from 58 $).

What is the lowest airfare Seattle to Denver?

The cheapest plane ticket found by our users is $30. This airfare is for economy class on one-way F91176 flight by Frontier Airlines for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 22:08 am and arrives at Denver Denver International at 01:51.

Economy class

$30

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — Denver is served by 5 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 3 departures per week at the price of from $ 94 . And the most expensive tickets are offered by Volaris airline - from $ 508.

Direct flights

There are 6 nonstop flights on the route. The fastest direct flight is AS602 by Alaska Airlines takes 2h 38m and the cheapest is F91176 by Frontier Airlines for $30.

AS - Alaska Airlines

from $94

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F9 - Frontier Airlines

from $30

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UA - United Airlines

from $91

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Connecting Flights

There are 18 flights with layovers on the route. The fastest connecting flight is AS3362 by Alaska Airlines takes 4h 52m and the cheapest is F91176 by Frontier Airlines for $58.

AS - Alaska Airlines

from $148

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F9 - Frontier Airlines

from $58

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UA - United Airlines

from $136

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NK - Spirit Airlines

from $210

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Y4 - Volaris

from $393

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Airports

You can fly from Seattle to Denver from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

from $30
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Kenmore Air Harbor SPB-LKE

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Denver airports

Denver International-DEN

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Arapahoe Co-APA

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Airplanes

There are flights to Denver from Seattle by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Seattle

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

Seattle — Spokane

from $65

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Seattle — Phoenix

from $67

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Seattle — Los Angeles

from $53

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Seattle — Houston

from $59

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Seattle — Charlotte

from $63

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Seattle — Miami

from $66

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Seattle — Milwaukee

from $75

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Seattle — Tucson

from $79

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Seattle — Denver

from $243

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Seattle — San Antonio

from $54

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Top International Destinations from Seattle

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.

Seattle — Frankfurt

from $60

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Seattle — Sydney

from $56

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Seattle — Dublin

from $76

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Seattle — London

from $70

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Seattle — Berlin

from $67

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Seattle — Rome

from $59

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Seattle — Manila

from $56

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Seattle — Barcelona

from $78

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Seattle — Dubai

from $79

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Seattle — Venice

from $53

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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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