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Cheap flights from Colorado Springs to Seattle from $149

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado Springs to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:14 am - 5:57 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 43m1 stop Denver Intl
United Airlines Logo
12:45 pm - 8:49 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 04m1 stop Denver Intl
$297United Airlines
Wed, Nov 4 - Sat, Nov 7
United Airlines Logo
5:30 am - 9:47 amCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 17m1 stop Denver Intl
United Airlines Logo
3:49 pm - 9:22 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 33m1 stop Denver Intl
$297United Airlines
Sat, Nov 7 - Sat, Nov 7
United Airlines Logo
5:05 pm - 9:19 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 14m1 stop Denver Intl
United Airlines Logo
12:45 pm - 8:49 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 04m1 stop Denver Intl
$297United Airlines
Tue, Nov 3 - Sat, Nov 7
Southwest Logo
5:25 pm - 10:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
9:35 am - 5:10 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 35m1 stop Denver Intl
$307Southwest
Sat, Oct 24 - Sat, Oct 31
Delta Logo
6:07 pm - 10:05 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
4h 58m1 stop Salt Lake City
Delta Logo
9:25 am - 5:28 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 03m1 stop Salt Lake City
$307Delta
Wed, Nov 4 - Tue, Nov 10
Southwest Logo
5:25 pm - 10:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
5:55 am - 4:05 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 10m2 stops Sacramento Intl Las Vegas Harry Reid Intl
$312Southwest
Sat, Oct 24 - Sat, Oct 31
Delta Logo
8:17 am - 4:45 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
9h 28m2 stops Salt Lake City Los Angeles
Delta Logo
7:15 am - 5:28 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 13m2 stops Los Angeles Salt Lake City
$317Delta
Tue, Nov 3 - Tue, Nov 10
Southwest Logo
3:05 pm - 10:20 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
8h 15m2 stops Phoenix Sky Harbor Intl Sacramento Intl
Southwest Logo
11:35 am - 8:55 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
8h 20m2 stops Sacramento Intl Las Vegas Harry Reid Intl
$317Southwest
Wed, Nov 4 - Tue, Nov 10
American Airlines Logo
10:27 am - 4:48 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 21m1 stop Dallas/Fort Worth
American Airlines Logo
3:45 pm - 11:31 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 46m1 stop Dallas/Fort Worth
$627American Airlines
Tue, Oct 6 - Wed, Oct 14
American Airlines Logo
5:29 pm - 12:58 amCOS  Colorado Springs-SEA Seattle/Tacoma Intl
8h 29m1 stop Dallas/Fort Worth
American Airlines Logo
11:59 pm - 10:00 amSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 01m1 stop Dallas/Fort Worth
$627American Airlines
Sat, Dec 26 - Sun, Jan 3

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Southwest flights from Colorado Springs to Seattle

Our best Southwest deals on Colorado Springs to Seattle flight tickets
Southwest
Oct 24
COS5:25 pmColorado Springs
6h 00m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
Oct 31
SEA9:35 amSeattle/Tacoma Intl
6h 35m
1 stop
COS5:10 pmColorado Springs
$307
Southwest
Oct 24
COS5:25 pmColorado Springs
6h 00m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
Oct 31
SEA5:55 amSeattle/Tacoma Intl
9h 10m
2 stops
COS4:05 pmColorado Springs
$312
Southwest
Oct 24
COS6:55 amColorado Springs
7h 25m
2 stops
SEA1:20 pmSeattle/Tacoma Intl
Oct 31
SEA5:55 amSeattle/Tacoma Intl
9h 10m
2 stops
COS4:05 pmColorado Springs
$352

Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Nov 3
COS8:17 amColorado Springs
9h 28m
2 stops
SEA4:45 pmSeattle/Tacoma Intl
Nov 10
SEA7:15 amSeattle/Tacoma Intl
9h 13m
2 stops
COS5:28 pmColorado Springs
$317
Delta
Nov 2
COS6:07 pmColorado Springs
4h 58m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
Nov 10
SEA9:25 amSeattle/Tacoma Intl
7h 03m
1 stop
COS5:28 pmColorado Springs
$331
Delta
Nov 6
COS6:07 pmColorado Springs
4h 58m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
Nov 10
SEA11:30 amSeattle/Tacoma Intl
4h 58m
1 stop
COS5:28 pmColorado Springs
$333

momondo Fare Finder

 
Use the filters below to find and compare flights from Colorado Springs to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 11/4

11:14 am-5:57 pm

1 stop7h 43m

Seattle/Tacoma Intl

Sat 11/7

12:45 pm-8:49 pm

1 stop7h 04m

$297
Quickest round-trip

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 11/7

5:30 am-9:47 am

1 stop5h 17m

Seattle/Tacoma Intl

Sat 11/7

3:49 pm-9:22 pm

1 stop4h 33m

$297

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Tue 11/3

5:05 pm-9:19 pm

1 stop5h 14m

Seattle/Tacoma Intl

Sat 11/7

12:45 pm-8:49 pm

1 stop7h 04m

$297

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 10/24

5:25 pm-10:25 pm

1 stop6h 00m

Seattle/Tacoma Intl

Sat 10/31

9:35 am-5:10 pm

1 stop6h 35m

$307

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 11/4

6:07 pm-10:05 pm

1 stop4h 58m

Seattle/Tacoma Intl

Tue 11/10

9:25 am-5:28 pm

1 stop7h 03m

$307

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 10/24

5:25 pm-10:25 pm

1 stop6h 00m

Seattle/Tacoma Intl

Sat 10/31

5:55 am-4:05 pm

2 stops9h 10m

$312

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Tue 11/3

8:17 am-4:45 pm

2 stops9h 28m

Seattle/Tacoma Intl

Tue 11/10

7:15 am-5:28 pm

2 stops9h 13m

$317

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 11/4

3:05 pm-10:20 pm

2 stops8h 15m

Seattle/Tacoma Intl

Tue 11/10

11:35 am-8:55 pm

2 stops8h 20m

$317

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Tue 10/6

10:27 am-4:48 pm

1 stop7h 21m

Seattle/Tacoma Intl

Wed 10/14

3:45 pm-11:31 pm

1 stop6h 46m

$627

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 12/26

5:29 pm-12:58 am

1 stop8h 29m

Seattle/Tacoma Intl

Sun 1/3

11:59 pm-10:00 am

1 stop9h 01m

$627

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Colorado Springs to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Colorado Springs and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $322 to $464.
The lowest price recently found on this route was $297.

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Colorado Springs to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $224. If you don’t want to visit Seattle in January, then you should wait until October to fly from Colorado Springs, when ticket prices are also cheap, with an average price of $316.

How far in advance should I book a flight from Colorado Springs to Seattle?

You are more likely to see cheaper flights to Seattle from Colorado Springs when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Colorado Springs for as low as $276 on momondo.

How have Colorado Springs to Seattle flight prices changed over time?

As of September 2026, prices for Colorado Springs to Seattle flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from Colorado Springs to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Colorado Springs to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Colorado Springs to Seattle (COS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado Springs to Seattle

Best Price Found

$149

Fastest flight time

4h 58m

Direct flights

None
The best one-way flight to Seattle from Colorado Springs in the past 72 hours is $149. The best round-trip flight deal from Colorado Springs to Seattle found on momondo in the last 72 hours is $297.
The fastest flight from Colorado Springs to Seattle takes 4h 58m
There are no direct flights from Colorado Springs to Seattle. There are no popular flight routes from Colorado Springs to Seattle.
Search flight deals

Frequently asked questions about flying from Colorado Springs to Seattle

  • How far is Colorado Springs to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 1065.8 mi away from Colorado Springs. Flights usually cover this in 4h 58m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Colorado Springs Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Colorado Springs Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Colorado Springs Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Colorado Springs Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado Springs Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Colorado Springs to Seattle?

Best airlines flying from Colorado Springs to Seattle

Compare and see reviews for airlines that fly from Colorado Springs to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $137Free CancellationRating
7.8
8,594 reviews
Search Delta flights
SouthwestPriceFrom $162Free CancellationRating
8.0
4,199 reviews
Search Southwest flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
10,233 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Colorado Springs to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Colorado Springs.

Can I find flights from Colorado Springs to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Colorado Springs which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado Springs to Seattle?

Once all potential Colorado Springs to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Colorado Springs to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado Springs to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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