Cheap Flights from Colorado Springs, CO to Seattle, WA from $128

On Cheapflightsplus.com you will find 121 connecting flights from Colorado Springs to Seattle. You can compare airfare deals from 2 airlines and multiple travel sites from $128, book and save on cheap plane tickets and last minute offers. Also check out COS-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

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

Distance between Colorado Springs and Seattle is 1714 miles. Time difference between the cities is 1h. Airplanes depart 05:30 to 18:35 from 3 Colorado Springs airports and arrive 05:30 to 18:35 to 3 Seattle airports. Average flight time is 10h 20m.

  • The fastest flight 4h 44m
  • Average flight time 10h 20m
  • The earliest flight 05:30
  • The latest flight 18:35
  • Distance 1066 ml

The cheapest months to travel to Seattle are july (from 128 $), august (from 159 $), october (from 332 $).

The most expensive months are february (from 332 $), november (from 332 $), january (from 332 $).

What is the lowest airfare Colorado Springs to Seattle?

The cheapest plane ticket found by our users is $128. This airfare is for economy class on one-way G41600 flight by Allegiant Air for August 8, 2025 which leaves Colorado Springs in Colorado Springs at 17:09 am and arrives at Seattle Seattle-Tacoma Intl at 16:25.

Economy class
$128
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Business class
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First class
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Flight Schedule Colorado Springs (Colorado) to Seattle (Washington)

05:30 — 10:08
5h 38m flight time
Find flight
from$278
05:30 — 06:30 Colorado Springs — Denver
UA4696 United Airlines
1h 38m stop
08:08 — 10:08 Denver — Seattle
UA204 United Airlines
05:30 — 22:59
18h 29m flight time
Find flight
from$305
05:30 — 06:30 Colorado Springs — Denver
UA4696 United Airlines
14h 30m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
06:00 — 22:59
17h 59m flight time
Find flight
from$305
06:00 — 07:01 Colorado Springs — Denver
UA5291 United Airlines
13h 59m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
07:30 — 22:59
16h 29m flight time
Find flight
from$305
07:30 — 08:22 Colorado Springs — Denver
UA2244 United Airlines
12h 38m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
10:30 — 22:59
13h 29m flight time
Find flight
from$305
10:30 — 11:31 Colorado Springs — Denver
UA5266 United Airlines
9h 29m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
11:35 — 22:59
12h 24m flight time
Find flight
from$305
11:35 — 12:36 Colorado Springs — Denver
UA4675 United Airlines
8h 24m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
12:55 — 18:00
6h 5m flight time
Find flight
from$238
12:55 — 13:55 Colorado Springs — Denver
UA5399 United Airlines
2h 6m stop
16:01 — 18:00 Denver — Seattle
UA1254 United Airlines
12:55 — 22:59
11h 4m flight time
Find flight
from$305
12:55 — 13:55 Colorado Springs — Denver
UA5399 United Airlines
7h 5m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
14:00 — 22:59
9h 59m flight time
Find flight
from$305
13:20 — 14:25 Colorado Springs — Denver
UA4647 United Airlines
6h stop
21:10 — 23:17 Denver — Seattle
UA2651 United Airlines
15:35 — 21:23
6h 48m flight time
Find flight
from$238
15:35 — 16:28 Colorado Springs — Denver
UA2101 United Airlines
2h 57m stop
19:25 — 21:23 Denver — Seattle
UA299 United Airlines
15:35 — 08:01+1day
17h 26m flight time
Find flight
from$286
15:35 — 16:28 Colorado Springs — Denver
UA2101 United Airlines
13h 32m stop
06:00 — 08:01 Denver — Seattle
UA751 United Airlines
17:20 — 22:59
6h 39m flight time
Find flight
from$154
17:20 — 18:20 Colorado Springs — Denver
UA4719 United Airlines
2h 40m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
17:20 — 21:23
5h 3m flight time
Find flight
from$278
17:20 — 18:20 Colorado Springs — Denver
UA4719 United Airlines
1h 5m stop
19:35 — 21:33 Denver — Seattle
UA299 United Airlines
18:35 — 22:59
5h 24m flight time
Find flight
from$154
18:35 — 19:35 Colorado Springs — Denver
UA5391 United Airlines
1h 25m stop
21:00 — 22:59 Denver — Seattle
UA2651 United Airlines
18:35 — 08:01+1day
14h 26m flight time
Find flight
from$286
18:35 — 19:35 Colorado Springs — Denver
UA5391 United Airlines
10h 25m stop
06:00 — 08:01 Denver — Seattle
UA751 United Airlines
Full flight schedule will help you in detecting at what time planes fly from Colorado Springs 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 and arrival times - local. Updated on October 26, 2025.

Popular Airlines on the Route

The flight Colorado Springs — Seattle is served by 2 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by United Airlines - 116 departures per week at the price of from $ 154 . And the most expensive tickets are offered by United Airlines airline - from $ 770.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 121 flights with layovers on the route. The fastest connecting flight is UA5634 by United Airlines takes 4h 44m and the cheapest is G41600 by Allegiant Air for $128.

  • UA - United Airlines
    from $154
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  • G4 - Allegiant Air
    from $128
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See more connecting flights

Airports

You can fly from Colorado Springs to Seattle from 3 airports (USAF Academy Airstrip, Colorado Springs, Butts AAF).

Colorado Springs airports

  • USAF Academy Airstrip-AFF
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  • Colorado Springs-COS
    from $128
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  • Butts AAF-FCS
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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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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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