Cheap Flights from Seattle, WA to Denver, CO from $60

Return flight: Denver – Seattle

On Cheapflightsplus.com you will find 11 direct and 68 connecting flights from Seattle to Denver. You can compare airfare deals from 6 airlines and multiple travel sites from $60, 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: $60 (one-way), $103 (round-trip).
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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 Arrival Flight Details Flight Duration Price
05:02 — 08:44
05:02 — 08:44 UA2269 United Airlines
Seattle — Denver
2h 42m
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from$117
09:00 — 12:43
09:00 — 12:43 UA1829 United Airlines
Seattle — Denver
2h 43m
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from$117
12:34 — 16:12
12:34 — 16:12 AS602 Alaska Airlines
Seattle — Denver
2h 38m
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from$95
12:35 — 16:17
12:35 — 16:17 UA1483 United Airlines
Seattle — Denver
2h 42m
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from$128
12:46 — 16:31
12:46 — 16:31 UA423 United Airlines
Seattle — Denver
2h 45m
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from$232
15:18 — 19:00
15:18 — 19:00 UA757 United Airlines
Seattle — Denver
2h 42m
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from$128
15:21 — 18:59
15:21 — 18:59 AS524 Alaska Airlines
Seattle — Denver
2h 38m
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from$107
18:00 — 21:44
18:00 — 21:44 UA1279 United Airlines
Seattle — Denver
2h 44m
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from$117
18:59 — 22:36
18:59 — 22:36 AS321 Alaska Airlines
Seattle — Denver
2h 37m
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from$81
19:13 — 22:57
19:13 — 22:57 UA1387 United Airlines
Seattle — Denver
2h 44m
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from$140
22:08 — 01:51
+1 day
22:08 — 01:51 F91176 Frontier Airlines
Seattle — Denver
2h 43m
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from$60
06:15 — 18:09
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
5h 38m stop
14:40 — 18:09 UA1897 United Airlines
Los Angeles — Denver
10h 54m
including layover
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from$229
06:15 — 19:40
06:15 — 09:02 UA1571 United Airlines
Seattle — Los Angeles
7h 9m stop
16:11 — 19:40 UA2146 United Airlines
Los Angeles — Denver
12h 25m
including layover
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from$229
07:05 — 14:30
07:05 — 09:25 UA1403 United Airlines
Seattle — San Francisco
1h 19m stop
11:10 — 14:56 UA1986 United Airlines
San Francisco — Denver
6h 25m
including layover
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from$186
07:42 — 13:07
07:42 — 08:34 AS2180 Alaska Airlines
Seattle — Portland
1h 1m stop
09:35 — 13:07 AS336 Alaska Airlines
Portland — Denver
4h 25m
including layover
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from$102
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
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from$150
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
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from$138
10:36 — 08:01
+1 day
09:57 — 13:05 F94988 Frontier Airlines
Seattle — Salt Lake City
16h 38m stop
06:15 — 07:52 F93862 Frontier Airlines
Salt Lake City — Denver
20h 25m
including layover
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from$75
10:36 — 12:25
+1 day
09:57 — 13:05 F94988 Frontier Airlines
Seattle — Salt Lake City
21h 13m stop
10:45 — 12:22 F93982 Frontier Airlines
Salt Lake City — Denver
24h 49m
including layover
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from$75
16:35 — 23:33
19:28 — 22:08 F93163 Frontier Airlines
Seattle — Ontario
1h stop
06:30 — 09:54 F91500 Frontier Airlines
Ontario — Denver
5h 58m
including layover
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from$65
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
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from$150
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
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from$87
17:30 — 13:07
+1 day
17:30 — 18:19 AS2007 Alaska Airlines
Seattle — Portland
15h 16m stop
09:35 — 13:07 AS336 Alaska Airlines
Portland — Denver
18h 37m
including layover
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from$200
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
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from$87
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
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from$87
20:59 — 13:07
+1 day
20:59 — 21:53 AS123 Alaska Airlines
Seattle — Portland
11h 42m stop
09:35 — 13:07 AS336 Alaska Airlines
Portland — Denver
15h 8m
including layover
Find flight
from$159
21:52 — 10:03
+1 day
21:52 — 01:44 F93974 Frontier Airlines
Seattle — Phoenix
6h 21m stop
08:15 — 10:11 F94768 Frontier Airlines
Phoenix — Denver
11h 11m
including layover
Find flight
from$70
08:45 — 19:15
08:45 — 09:46 AS2114 Alaska Airlines
Seattle — Portland
1h 24m stop
11:20 — 13:48 AS1172 Alaska Airlines
Portland — Los Angeles
2h 13m stop
15:51 — 19:15 AS4722 Alaska Airlines
Los Angeles — Denver
9h 30m
including layover
Find flight
from$219
21:16 — 13:07
+1 day
21:16 — 23:59 AS1292 Alaska Airlines
Seattle — Los Angeles
6h 1m stop
06:00 — 08:37 AS1124 Alaska Airlines
Los Angeles — Portland
58m stop
09:35 — 13:07 AS336 Alaska Airlines
Portland — Denver
14h 51m
including layover
Find flight
from$212
*Departure and arrival times - local. Updated on December 21, 2024

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 42m.

  • The fastest flight 2h 37m
  • Average flight time 2h 42m
  • 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 59 $), february (from 60 $).

The most expensive months are january (from 65 $), february (from 60 $), december (from 59 $).

What is the lowest airfare Seattle to Denver?

The cheapest plane ticket found by our users is $60. 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
$60
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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 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 13 departures per week at the price of from $ 81 . And the most expensive tickets are offered by Aeromexico airline - from $ 1140.

Direct flights

There are 11 nonstop flights on the route. The fastest direct flight is AS321 by Alaska Airlines takes 2h 37m and the cheapest is F91176 by Frontier Airlines for $60.

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Connecting Flights

There are 68 flights with layovers on the route. The fastest connecting flight is AS2180 by Alaska Airlines takes 4h 25m and the cheapest is F91176 by Frontier Airlines for $65.

See more connecting flights

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 $60
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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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How to book a plane ticket yourself?

How to book an air 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.

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