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Cheap flights from Colorado Springs to Seattle from $134

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 9/5. 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

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
7:00 am - 11:44 am
COS
-
SEA
5h 44m
1 stop
United Airlines Logo
5:00 am - 10:21 am
SEA
-
COS
4h 21m
1 stop
$267United Airlines
Wed, Aug 26 - Wed, Sep 9
United Airlines Logo
11:30 am - 3:52 pm
COS
-
SEA
5h 22m
1 stop
United Airlines Logo
5:00 am - 10:21 am
SEA
-
COS
4h 21m
1 stop
$267United Airlines
Wed, Aug 26 - Wed, Sep 9
Southwest Logo
5:10 pm - 12:45 am
COS
-
SEA
8h 35m
1 stop
Southwest Logo
9:05 am - 4:30 pm
SEA
-
COS
6h 25m
1 stop
$267Southwest
Thu, Sep 10 - Fri, Sep 11
Southwest Logo
4:15 pm - 11:05 pm
COS
-
SEA
7h 50m
1 stop
Southwest Logo
6:25 am - 12:35 pm
SEA
-
COS
5h 10m
1 stop
$267Southwest
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
5:30 am - 9:47 am
COS
-
SEA
5h 17m
1 stop
United Airlines Logo
3:49 pm - 9:22 pm
SEA
-
COS
4h 33m
1 stop
$267United Airlines
Wed, Oct 28 - Wed, Oct 28
Southwest Logo
5:45 pm - 9:30 pm
COS
-
SEA
4h 45m
1 stop
Southwest Logo
9:05 am - 4:30 pm
SEA
-
COS
6h 25m
1 stop
$267Southwest
Sat, Sep 5 - Fri, Sep 11
Delta Logo
6:16 pm - 10:05 pm
COS
-
SEA
4h 49m
1 stop
Delta Logo
12:35 pm - 10:25 pm
SEA
-
COS
8h 50m
2 stops
$272Delta
Tue, Sep 1 - Sat, Sep 12
Delta Logo
6:16 pm - 10:05 pm
COS
-
SEA
4h 49m
1 stop
Delta Logo
7:15 am - 5:31 pm
SEA
-
COS
9h 16m
2 stops
$282Delta
Sat, Aug 29 - Tue, Sep 29
American Airlines Logo
3:51 pm - 12:50 am
COS
-
SEA
9h 59m
1 stop
American Airlines Logo
11:16 pm - 9:18 am
SEA
-
COS
9h 02m
1 stop
$607American Airlines
Sun, Aug 23 - Mon, Aug 24
American Airlines Logo
8:07 am - 2:51 pm
COS
-
SEA
7h 44m
1 stop
American Airlines Logo
2:26 pm - 10:59 pm
SEA
-
COS
7h 33m
1 stop
$607American Airlines
Thu, Sep 10 - Mon, Oct 5

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United Airlines flights from Colorado Springs to Seattle

Our best United Airlines deals on Colorado Springs to Seattle flight tickets
United Airlines
Sep 26
COS5:30 amColorado Springs
5h 31m
1 stop
SEA10:01 amSeattle/Tacoma Intl
Sep 29
SEA5:00 amSeattle/Tacoma Intl
6h 27m
1 stop
COS12:27 pmColorado Springs
$297
United Airlines
Sep 26
COS5:30 amColorado Springs
5h 31m
1 stop
SEA10:01 amSeattle/Tacoma Intl
Sep 29
SEA1:19 pmSeattle/Tacoma Intl
7h 47m
2 stops
COS10:06 pmColorado Springs
$302
United Airlines
Sep 26
COS1:29 pmColorado Springs
10h 58m
2 stops
SEA11:27 pmSeattle/Tacoma Intl
Sep 29
SEA6:30 amSeattle/Tacoma Intl
8h 56m
2 stops
COS4:26 pmColorado Springs
$307

Southwest flights from Colorado Springs to Seattle

Our best Southwest deals on Colorado Springs to Seattle flight tickets
Southwest
Sep 5
COS5:45 pmColorado Springs
4h 45m
1 stop
SEA9:30 pmSeattle/Tacoma Intl
Sep 11
SEA9:05 amSeattle/Tacoma Intl
6h 25m
1 stop
COS4:30 pmColorado Springs
$267
Southwest
Sep 1
COS7:20 amColorado Springs
4h 40m
1 stop
SEA11:00 amSeattle/Tacoma Intl
Sep 12
SEA5:30 amSeattle/Tacoma Intl
10h 40m
1 stop
COS5:10 pmColorado Springs
$273
Southwest
Aug 26
COS5:20 pmColorado Springs
7h 05m
1 stop
SEA11:25 pmSeattle/Tacoma Intl
Sep 2
SEA6:25 amSeattle/Tacoma Intl
5h 10m
1 stop
COS12:35 pmColorado Springs
$277

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 August 3, 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

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 8/26

7:00 am-11:44 am

1 stop5h 44m

Seattle/Tacoma Intl

Wed 9/9

5:00 am-10:21 am

1 stop4h 21m

$267
Quickest round-trip

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 8/26

11:30 am-3:52 pm

1 stop5h 22m

Seattle/Tacoma Intl

Wed 9/9

5:00 am-10:21 am

1 stop4h 21m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 9/10

5:10 pm-12:45 am

1 stop8h 35m

Seattle/Tacoma Intl

Fri 9/11

9:05 am-4:30 pm

1 stop6h 25m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 8/25

4:15 pm-11:05 pm

1 stop7h 50m

Seattle/Tacoma Intl

Tue 9/1

6:25 am-12:35 pm

1 stop5h 10m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 10/28

5:30 am-9:47 am

1 stop5h 17m

Seattle/Tacoma Intl

Wed 10/28

3:49 pm-9:22 pm

1 stop4h 33m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sat 9/5

5:45 pm-9:30 pm

1 stop4h 45m

Seattle/Tacoma Intl

Fri 9/11

9:05 am-4:30 pm

1 stop6h 25m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 9/1

6:16 pm-10:05 pm

1 stop4h 49m

Seattle/Tacoma Intl

Sat 9/12

12:35 pm-10:25 pm

2 stops8h 50m

$272

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sat 8/29

6:16 pm-10:05 pm

1 stop4h 49m

Seattle/Tacoma Intl

Tue 9/29

7:15 am-5:31 pm

2 stops9h 16m

$282

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sun 8/23

3:51 pm-12:50 am

1 stop9h 59m

Seattle/Tacoma Intl

Mon 8/24

11:16 pm-9:18 am

1 stop9h 02m

$607

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 9/10

8:07 am-2:51 pm

1 stop7h 44m

Seattle/Tacoma Intl

Mon 10/5

2:26 pm-10:59 pm

1 stop7h 33m

$607

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 $294 to $447.
The lowest price recently found on this route was $267.

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 $283.

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 $384 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 $219 on momondo.

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

As of August 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 49m

Direct flights

None
The fastest flight from Colorado Springs to Seattle takes 4h 49m
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 49m, 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
8,482 reviews
Search Delta flights
SouthwestPriceFrom $186Free CancellationRating
8.0
4,224 reviews
Search Southwest flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
10,058 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
Lynnwood
Redmond
Lakewood
Puyallup
Fife
Federal Way
Tukwila
Cle Elum
Marysville
Kirkland
Centralia
Shoreline
Lacey

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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