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Cheap flights from Colorado Springs to Seattle from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado Springs to Seattle departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Colorado Springs to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:55 am - 6:30 pm
COS
-
SEA
7h 35m
1 stop
Delta Logo
5:35 am - 11:12 am
SEA
-
COS
4h 37m
1 stop
$158Delta
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
8:05 pm - 1:55 am
COS
-
SEA
6h 50m
1 stop
Southwest Logo
11:40 am - 8:45 pm
SEA
-
COS
8h 05m
2 stops
$162Southwest
Sun, May 31 - Wed, Jun 3
Delta Logo
11:55 am - 6:30 pm
COS
-
SEA
7h 35m
1 stop
Delta Logo
5:35 am - 11:12 am
SEA
-
COS
4h 37m
1 stop
$203Delta
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
4:45 pm - 11:35 pm
COS
-
SEA
7h 50m
1 stop
Southwest Logo
2:20 pm - 8:45 pm
SEA
-
COS
5h 25m
1 stop
$217Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
4:05 pm - 11:35 pm
COS
-
SEA
8h 30m
2 stops
Southwest Logo
9:20 am - 3:30 pm
SEA
-
COS
5h 10m
1 stop
$222Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
4:05 pm - 11:35 pm
COS
-
SEA
8h 30m
2 stops
Southwest Logo
11:35 am - 9:20 pm
SEA
-
COS
8h 45m
2 stops
$227Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
8:05 pm - 1:55 am
COS
-
SEA
6h 50m
1 stop
Southwest Logo
11:40 am - 10:20 pm
SEA
-
COS
9h 40m
1 stop
$228Southwest
Sun, May 31 - Wed, Jun 3
Delta Logo
11:55 am - 6:30 pm
COS
-
SEA
7h 35m
1 stop
Delta Logo
5:35 am - 11:12 am
SEA
-
COS
4h 37m
1 stop
$237Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
11:55 am - 6:30 pm
COS
-
SEA
7h 35m
1 stop
Delta Logo
5:35 am - 11:12 am
SEA
-
COS
4h 37m
1 stop
$238Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
11:55 am - 6:30 pm
COS
-
SEA
7h 35m
1 stop
Delta Logo
1:45 pm - 10:13 pm
SEA
-
COS
7h 28m
2 stops
$242Delta
Tue, Apr 14 - Tue, Apr 21

United Airlines flights from Colorado Springs to Seattle

Our best United Airlines deals on Colorado Springs to Seattle flight tickets
United Airlines
Apr 17
COS6:00 amColorado Springs
4h 46m
1 stop
SEA9:46 amSeattle/Tacoma Intl
Apr 28
SEA5:00 amSeattle/Tacoma Intl
5h 05m
1 stop
COS11:05 amColorado Springs
$265
United Airlines
May 11
COS6:57 pmColorado Springs
5h 02m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
May 18
SEA5:05 amSeattle/Tacoma Intl
6h 21m
1 stop
COS12:26 pmColorado Springs
$274
United Airlines
Apr 23
COS6:00 amColorado Springs
4h 46m
1 stop
SEA9:46 amSeattle/Tacoma Intl
Apr 26
SEA5:00 amSeattle/Tacoma Intl
6h 36m
1 stop
COS12:36 pmColorado Springs
$277

Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Apr 14
COS11:55 amColorado Springs
7h 35m
1 stop
SEA6:30 pmSeattle/Tacoma Intl
Apr 21
SEA5:35 amSeattle/Tacoma Intl
4h 37m
1 stop
COS11:12 amColorado Springs
$158
Delta
Apr 14
COS11:55 amColorado Springs
7h 35m
1 stop
SEA6:30 pmSeattle/Tacoma Intl
Apr 21
SEA5:35 amSeattle/Tacoma Intl
4h 37m
1 stop
COS11:12 amColorado Springs
$203
Delta
Apr 14
COS11:55 amColorado Springs
7h 35m
1 stop
SEA6:30 pmSeattle/Tacoma Intl
Apr 21
SEA5:35 amSeattle/Tacoma Intl
4h 37m
1 stop
COS11:12 amColorado Springs
$237

momondo Fare Finder

 
Customize your flight search to find flights from Colorado Springs to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 24, 2026.
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 - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-6:30 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$158

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sun 5/31

8:05 pm-1:55 am

1 stop6h 50m

Seattle/Tacoma Intl

Wed 6/3

11:40 am-8:45 pm

2 stops8h 05m

$162

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-6:30 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$203

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 5/5

4:45 pm-11:35 pm

1 stop7h 50m

Seattle/Tacoma Intl

Tue 5/12

2:20 pm-8:45 pm

1 stop5h 25m

$217

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 5/5

4:05 pm-11:35 pm

2 stops8h 30m

Seattle/Tacoma Intl

Tue 5/12

9:20 am-3:30 pm

1 stop5h 10m

$222

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 5/5

4:05 pm-11:35 pm

2 stops8h 30m

Seattle/Tacoma Intl

Tue 5/12

11:35 am-9:20 pm

2 stops8h 45m

$227

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sun 5/31

8:05 pm-1:55 am

1 stop6h 50m

Seattle/Tacoma Intl

Wed 6/3

11:40 am-10:20 pm

1 stop9h 40m

$228

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-6:30 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$237

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-6:30 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 4/21

5:35 am-11:12 am

1 stop4h 37m

$238

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 4/14

11:55 am-6:30 pm

1 stop7h 35m

Seattle/Tacoma Intl

Tue 4/21

1:45 pm-10:13 pm

2 stops7h 28m

$242

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 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 $282.

How far in advance should I book a flight 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 $357 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 $268 on momondo.

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

As of March 2026, prices for Colorado Springs to Seattle flights are approximately 12% 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

Fastest flight time

4h 46m

Direct flights

None
The fastest flight from Colorado Springs to Seattle takes 4h 46m
There are no direct flights from Colorado Springs to Seattle. There are no popular flight routes from Colorado Springs to Seattle.
Search flight deals

  • 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 46m, 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
7.9
8,320 reviews
Search Delta flights
SouthwestPriceFrom $162Free CancellationRating
8.0
4,329 reviews
Search Southwest flights
American AirlinesPriceFrom $186Free CancellationRating
7.1
11,492 reviews
Search American Airlines flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
9,469 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
Olympia
Lynnwood
Kent
Redmond
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Kirkland
Tumwater

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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