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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
5:45 am - 9:46 amCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 01m1 stop Denver Intl
United Airlines Logo
4:00 pm - 10:09 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 09m1 stop Denver Intl
$297United Airlines
Tue, Dec 15 - Tue, Jan 19
United Airlines Logo
3:15 pm - 9:21 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 06m1 stop Denver Intl
United Airlines Logo
4:00 pm - 10:09 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 09m1 stop Denver Intl
$297United Airlines
Wed, Dec 9 - Tue, Jan 19
United Airlines Logo
7:00 am - 1:49 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 49m1 stop Denver Intl
United Airlines Logo
5:05 am - 12:37 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 32m1 stop Denver Intl
$297United Airlines
Wed, Dec 9 - Sat, Dec 12
Southwest Logo
7:00 am - 12:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 25m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:00 pm - 9:40 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 40m1 stop Las Vegas Harry Reid Intl
$337Southwest
Sat, Feb 20 - Sat, Feb 27
Southwest Logo
10:10 am - 4:05 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 55m1 stop Denver Intl
Southwest Logo
2:05 pm - 8:15 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 10m1 stop Las Vegas Harry Reid Intl
$337Southwest
Sat, Dec 12 - Tue, Jan 19
Delta Logo
8:11 am - 2:45 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 34m1 stop Salt Lake City
Delta Logo
5:45 am - 11:27 amSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 42m1 stop Salt Lake City
$337Delta
Wed, Feb 17 - Sat, Feb 27
Delta Logo
6:05 pm - 10:47 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 42m1 stop Salt Lake City
Delta Logo
5:35 am - 11:27 amSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 52m1 stop Salt Lake City
$337Delta
Sat, Dec 12 - Sat, Jan 16
Delta Logo
8:02 am - 2:43 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 41m1 stop Salt Lake City
Delta Logo
11:30 am - 5:23 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 53m1 stop Salt Lake City
$337Delta
Mon, Dec 7 - Tue, Dec 15
Southwest Logo
5:15 am - 12:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
8h 10m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl
Southwest Logo
11:25 am - 9:40 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 15m2 stops San Jose Las Vegas Harry Reid Intl
$383Southwest
Sat, Feb 20 - Sat, Feb 27
American Airlines Logo
10:36 am - 8:55 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
11h 19m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
6:00 am - 6:40 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
11h 40m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$538American Airlines
Fri, Jan 22 - Fri, Jan 29

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Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Dec 7
COS8:02 amColorado Springs
7h 41m
1 stop
SEA2:43 pmSeattle/Tacoma Intl
Dec 15
SEA7:15 amSeattle/Tacoma Intl
9h 08m
2 stops
COS5:23 pmColorado Springs
$342
Delta
Feb 17
COS12:10 pmColorado Springs
5h 27m
1 stop
SEA4:37 pmSeattle/Tacoma Intl
Mar 1
SEA5:45 amSeattle/Tacoma Intl
4h 42m
1 stop
COS11:27 amColorado Springs
$346
Delta
Dec 9
COS8:02 amColorado Springs
5h 34m
1 stop
SEA12:36 pmSeattle/Tacoma Intl
Jan 18
SEA5:35 amSeattle/Tacoma Intl
4h 52m
1 stop
COS11:27 amColorado Springs
$347

United Airlines flights from Colorado Springs to Seattle

Our best United Airlines deals on Colorado Springs to Seattle flight tickets
United Airlines
Dec 9
COS11:10 amColorado Springs
8h 14m
1 stop
SEA6:24 pmSeattle/Tacoma Intl
Dec 12
SEA5:05 amSeattle/Tacoma Intl
6h 32m
1 stop
COS12:37 pmColorado Springs
$297
United Airlines
Dec 9
COS5:45 amColorado Springs
11h 27m
2 stops
SEA4:12 pmSeattle/Tacoma Intl
Dec 12
SEA5:05 amSeattle/Tacoma Intl
6h 32m
1 stop
COS12:37 pmColorado Springs
$302
United Airlines
Dec 12
COS1:40 pmColorado Springs
9h 18m
2 stops
SEA9:58 pmSeattle/Tacoma Intl
Jan 20
SEA1:18 pmSeattle/Tacoma Intl
7h 51m
2 stops
COS10:09 pmColorado Springs
$307

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
Quickest round-trip

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Tue 12/15

5:45 am-9:46 am

1 stop5h 01m

Seattle/Tacoma Intl

Tue 1/19

4:00 pm-10:09 pm

1 stop5h 09m

$297

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 12/9

3:15 pm-9:21 pm

1 stop7h 06m

Seattle/Tacoma Intl

Tue 1/19

4:00 pm-10:09 pm

1 stop5h 09m

$297

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 12/9

7:00 am-1:49 pm

1 stop7h 49m

Seattle/Tacoma Intl

Sat 12/12

5:05 am-12:37 pm

1 stop6h 32m

$297

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 2/20

7:00 am-12:25 pm

1 stop6h 25m

Seattle/Tacoma Intl

Sat 2/27

3:00 pm-9:40 pm

1 stop5h 40m

$337

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 12/12

10:10 am-4:05 pm

1 stop6h 55m

Seattle/Tacoma Intl

Tue 1/19

2:05 pm-8:15 pm

1 stop5h 10m

$337

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Wed 2/17

8:11 am-2:45 pm

1 stop7h 34m

Seattle/Tacoma Intl

Sat 2/27

5:45 am-11:27 am

1 stop4h 42m

$337

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 12/12

6:05 pm-10:47 pm

1 stop5h 42m

Seattle/Tacoma Intl

Sat 1/16

5:35 am-11:27 am

1 stop4h 52m

$337

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Mon 12/7

8:02 am-2:43 pm

1 stop7h 41m

Seattle/Tacoma Intl

Tue 12/15

11:30 am-5:23 pm

1 stop4h 53m

$337

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Sat 2/20

5:15 am-12:25 pm

2 stops8h 10m

Seattle/Tacoma Intl

Sat 2/27

11:25 am-9:40 pm

2 stops9h 15m

$383

Colorado SpringsSeattle

COS Colorado Springs - SEA Seattle/Tacoma Intl

COSSEA

Colorado Springs

Fri 1/22

10:36 am-8:55 pm

2 stops11h 19m

Seattle/Tacoma Intl

Fri 1/29

6:00 am-6:40 pm

2 stops11h 40m

$538

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 typical for flights on this route.

Typical prices usually range from $279 to $562.
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 March to fly from Colorado Springs, when ticket prices are also cheap, with an average price of $317.

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 $410 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 $283 on momondo.

Can stopping save me money on Colorado Springs to Seattle flights?

You could potentially save up to 14% on your flight if you consider stops on a Colorado Springs to Seattle flight.

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

As of November 2026, prices for Colorado Springs to Seattle flights are approximately 0% 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

5h 04m

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 5h 04m
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 5h 04m, 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
8,698 reviews
Search Delta flights
SouthwestPriceFrom $196Free CancellationRating
8.0
4,215 reviews
Search Southwest flights
United AirlinesPriceFrom $217Free CancellationRating
7.3
10,469 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
Kent
Olympia
Federal Way
Redmond
Lakewood
Lynnwood
Fife
Puyallup
Tukwila
Cle Elum
Marysville
Lacey
Kirkland
Centralia
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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