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Cheap flights from Colorado Springs to Seattle from $89

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 10/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Southwest Logo
6:10 pm - 10:55 pmCOS-SEA
5h 45m1 stop
Southwest Logo
5:50 am - 1:05 pmSEA-COS
6h 15m1 stop
$177Southwest
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Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
10:37 am - 4:54 pmCOS-SEA
7h 17m1 stop
American Airlines Logo
5:22 am - 3:58 pmSEA-COS
9h 36m1 stop
$197American Airlines
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Tue, Oct 7 - Tue, Oct 14
United Airlines Logo
6:20 pm - 11:10 pmCOS-SEA
5h 50m1 stop
United Airlines Logo
5:05 am - 11:18 amSEA-COS
5h 13m1 stop
$237United Airlines
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Tue, Nov 25 - Sat, Dec 6
Delta Logo
5:55 pm - 11:59 pmCOS-SEA
7h 04m1 stop
Delta Logo
1:30 pm - 10:10 pmSEA-COS
7h 40m1 stop
$247Delta
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Thu, Oct 2 - Tue, Oct 7
United Airlines Logo
6:20 pm - 11:29 pmCOS-SEA
6h 09m1 stop
United Airlines Logo
5:00 am - 10:40 amSEA-COS
4h 40m1 stop
$257United Airlines
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Fri, Oct 10 - Sun, Oct 12
Delta Logo
5:55 pm - 10:24 pmCOS-SEA
5h 29m1 stop
Delta Logo
7:15 am - 5:15 pmSEA-COS
9h 00m2 stops
$262Delta
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Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
5:05 pm - 9:33 pmCOS-SEA
5h 28m1 stop
United Airlines Logo
8:36 am - 2:29 pmSEA-COS
4h 53m1 stop
$264United Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 16
Southwest Logo
12:15 pm - 10:55 pmCOS-SEA
11h 40m1 stop
Southwest Logo
5:35 am - 11:25 amSEA-COS
4h 50m1 stop
$267Southwest
Find Deal
Tue, Nov 11 - Sun, Nov 16
Multiple Airlines Logo
3:41 pm - 1:03 pmCOS-SEA
22h 22m2 stops
Multiple Airlines Logo
8:22 pm - 2:58 pmSEA-COS
17h 36m1 stop
$268Multiple Airlines
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Sun, Nov 2 - Sat, Nov 8
American Airlines Logo
12:45 pm - 7:00 pmCOS-SEA
7h 15m1 stop
American Airlines Logo
3:51 pm - 11:48 pmSEA-COS
6h 57m1 stop
$277American Airlines
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Fri, Nov 14 - Sun, Nov 16

American Airlines flights from Colorado Springs to Seattle

Our best American Airlines deals on Colorado Springs to Seattle flight tickets
American Airlines
Oct 7
COS10:37 amColorado Springs
7h 17m
1 stop
SEA4:54 pmSeattle/Tacoma Intl
Oct 14
SEA5:22 amSeattle/Tacoma Intl
9h 36m
1 stop
COS3:58 pmColorado Springs
$197
Find similar
American Airlines
Nov 14
COS12:45 pmColorado Springs
7h 15m
1 stop
SEA7:00 pmSeattle/Tacoma Intl
Nov 16
SEA3:51 pmSeattle/Tacoma Intl
6h 57m
1 stop
COS11:48 pmColorado Springs
$277
Find similar
American Airlines
Nov 25
COS5:45 amColorado Springs
9h 23m
2 stops
SEA2:08 pmSeattle/Tacoma Intl
Dec 5
SEA12:31 amSeattle/Tacoma Intl
8h 23m
1 stop
COS9:54 amColorado Springs
$362
Find similar

Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Oct 2
COS5:55 pmColorado Springs
7h 04m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Oct 7
SEA1:30 pmSeattle/Tacoma Intl
7h 40m
1 stop
COS10:10 pmColorado Springs
$247
Find similar
Delta
Sep 30
COS5:55 pmColorado Springs
5h 29m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
Oct 4
SEA9:35 amSeattle/Tacoma Intl
6h 40m
1 stop
COS5:15 pmColorado Springs
$257
Find similar
Delta
Sep 30
COS5:55 pmColorado Springs
5h 29m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
Oct 4
SEA7:15 amSeattle/Tacoma Intl
9h 00m
2 stops
COS5:15 pmColorado Springs
$262
Find similar

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 September 16, 2025.
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

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 10/14

6:10 pm-10:55 pm

1 stop5h 45m

Seattle/Tacoma Intl

Tue 10/21

5:50 am-1:05 pm

1 stop6h 15m

$177

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 10/7

10:37 am-4:54 pm

1 stop7h 17m

Seattle/Tacoma Intl

Tue 10/14

5:22 am-3:58 pm

1 stop9h 36m

$197

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 11/25

6:20 pm-11:10 pm

1 stop5h 50m

Seattle/Tacoma Intl

Sat 12/6

5:05 am-11:18 am

1 stop5h 13m

$237

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 10/2

5:55 pm-11:59 pm

1 stop7h 04m

Seattle/Tacoma Intl

Tue 10/7

1:30 pm-10:10 pm

1 stop7h 40m

$247

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 10/10

6:20 pm-11:29 pm

1 stop6h 09m

Seattle/Tacoma Intl

Sun 10/12

5:00 am-10:40 am

1 stop4h 40m

$257

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 9/30

5:55 pm-10:24 pm

1 stop5h 29m

Seattle/Tacoma Intl

Sat 10/4

7:15 am-5:15 pm

2 stops9h 00m

$262

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 11/11

5:05 pm-9:33 pm

1 stop5h 28m

Seattle/Tacoma Intl

Sun 11/16

8:36 am-2:29 pm

1 stop4h 53m

$264

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 11/11

12:15 pm-10:55 pm

1 stop11h 40m

Seattle/Tacoma Intl

Sun 11/16

5:35 am-11:25 am

1 stop4h 50m

$267

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sun 11/2

3:41 pm-1:03 pm

2 stops22h 22m

Seattle/Tacoma Intl

Sat 11/8

8:22 pm-2:58 pm

1 stop17h 36m

$268

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 11/14

12:45 pm-7:00 pm

1 stop7h 15m

Seattle/Tacoma Intl

Sun 11/16

3:51 pm-11:48 pm

1 stop6h 57m

$277

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $206. If you don’t want to visit Seattle in January, then you should wait until February to fly from Colorado Springs, when ticket prices are also cheap, with an average price of $314.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Colorado Springs is on a Friday. momondo users have found tickets for Friday departures for as low as $289. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Colorado Springs because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $460.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Colorado Springs in the evening is the least expensive time of day to depart. momondo users have found prices as low as $275 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $390. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $370 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 $290 on momondo.

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

As of September 2025, prices for Colorado Springs to Seattle flights are approximately 42% cheaper 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

Direct flights

None
There are no direct flights from Colorado Springs to Seattle. There are no popular flight routes from Colorado Springs to Seattle.
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  • 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 35m, 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 $174Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $186Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

Traveling to a place near Seattle?

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

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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