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Cheap flights from Colorado Springs to Seattle from $99

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 8/26. 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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0 bags

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Find the cheapest flights from Colorado Springs to Seattle

Cheap round-trip flights

Delta Logo
5:55 pm - 10:20 pmCOS-SEA
5h 25m1 stop
Delta Logo
11:55 pm - 10:16 amSEA-COS
9h 21m1 stop
$197Delta
Find Deal
Wed, Aug 20 - Tue, Aug 26
Delta Logo
5:55 pm - 10:20 pmCOS-SEA
5h 25m1 stop
Delta Logo
7:10 am - 5:15 pmSEA-COS
9h 05m2 stops
$202Delta
Find Deal
Wed, Aug 20 - Tue, Aug 26
Delta Logo
5:55 pm - 11:59 pmCOS-SEA
7h 04m1 stop
Delta Logo
1:30 pm - 10:11 pmSEA-COS
7h 41m1 stop
$217Delta
Find Deal
Thu, Sep 18 - Tue, Sep 23
Delta Logo
5:55 pm - 11:59 pmCOS-SEA
7h 04m1 stop
Delta Logo
7:15 am - 5:15 pmSEA-COS
9h 00m2 stops
$222Delta
Find Deal
Thu, Sep 18 - Tue, Sep 23
Delta Logo
5:55 pm - 11:59 pmCOS-SEA
7h 04m1 stop
Delta Logo
1:30 pm - 10:11 pmSEA-COS
7h 41m1 stop
$227Delta
Find Deal
Thu, Sep 18 - Tue, Sep 23
Southwest Logo
5:50 pm - 12:05 amCOS-SEA
7h 15m1 stop
Southwest Logo
5:35 am - 4:10 pmSEA-COS
9h 35m1 stop
$238Southwest
Find Deal
Wed, Sep 3 - Tue, Sep 9
Southwest Logo
2:35 pm - 8:55 pmCOS-SEA
7h 20m1 stop
Southwest Logo
5:15 am - 12:35 pmSEA-COS
6h 20m1 stop
$242Southwest
Find Deal
Wed, Sep 3 - Mon, Sep 8
American Airlines Logo
5:45 am - 1:10 pmCOS-SEA
8h 25m1 stop
American Airlines Logo
12:59 am - 11:45 amSEA-COS
9h 46m1 stop
$287American Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
6:25 pm - 10:59 pmCOS-SEA
5h 34m1 stop
United Airlines Logo
5:02 am - 12:09 pmSEA-COS
6h 07m1 stop
$296United Airlines
Find Deal
Fri, Aug 22 - Mon, Aug 25
United Airlines Logo
6:35 pm - 10:59 pmCOS-SEA
5h 24m1 stop
United Airlines Logo
5:02 am - 10:54 amSEA-COS
4h 52m1 stop
$302United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19

Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Aug 20
COS5:55 pmColorado Springs
5h 25m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
Aug 26
SEA11:55 pmSeattle/Tacoma Intl
9h 21m
1 stop
COS10:16 amColorado Springs
$197
Find similar
Delta
Aug 20
COS5:55 pmColorado Springs
5h 25m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
Aug 26
SEA7:10 amSeattle/Tacoma Intl
9h 05m
2 stops
COS5:15 pmColorado Springs
$202
Find similar
Delta
Sep 18
COS5:55 pmColorado Springs
7h 04m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Sep 23
SEA1:30 pmSeattle/Tacoma Intl
7h 41m
1 stop
COS10:11 pmColorado Springs
$217
Find similar

American Airlines flights from Colorado Springs to Seattle

Our best American Airlines deals on Colorado Springs to Seattle flight tickets
American Airlines
Nov 7
COS5:45 amColorado Springs
8h 25m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
Nov 9
SEA12:59 amSeattle/Tacoma Intl
9h 46m
1 stop
COS11:45 amColorado Springs
$287
Find similar
American Airlines
Aug 11
COS10:54 amColorado Springs
9h 22m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
Aug 21
SEA12:58 amSeattle/Tacoma Intl
8h 04m
1 stop
COS10:02 amColorado Springs
$382
Find similar
American Airlines
Aug 11
COS10:54 amColorado Springs
9h 22m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
Aug 21
SEA12:58 amSeattle/Tacoma Intl
8h 04m
1 stop
COS10:02 amColorado Springs
$393
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 July 31, 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

Wed 8/20

5:55 pm-10:20 pm

1 stop5h 25m

Seattle/Tacoma Intl

Tue 8/26

11:55 pm-10:16 am

1 stop9h 21m

$197

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 8/20

5:55 pm-10:20 pm

1 stop5h 25m

Seattle/Tacoma Intl

Tue 8/26

7:10 am-5:15 pm

2 stops9h 05m

$202

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 9/18

5:55 pm-11:59 pm

1 stop7h 04m

Seattle/Tacoma Intl

Tue 9/23

1:30 pm-10:11 pm

1 stop7h 41m

$217

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 9/18

5:55 pm-11:59 pm

1 stop7h 04m

Seattle/Tacoma Intl

Tue 9/23

7:15 am-5:15 pm

2 stops9h 00m

$222

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 9/18

5:55 pm-11:59 pm

1 stop7h 04m

Seattle/Tacoma Intl

Tue 9/23

1:30 pm-10:11 pm

1 stop7h 41m

$227

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 9/3

5:50 pm-12:05 am

1 stop7h 15m

Seattle/Tacoma Intl

Tue 9/9

5:35 am-4:10 pm

1 stop9h 35m

$238

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Wed 9/3

2:35 pm-8:55 pm

1 stop7h 20m

Seattle/Tacoma Intl

Mon 9/8

5:15 am-12:35 pm

1 stop6h 20m

$242

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 11/7

5:45 am-1:10 pm

1 stop8h 25m

Seattle/Tacoma Intl

Sun 11/9

12:59 am-11:45 am

1 stop9h 46m

$287

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 8/22

6:25 pm-10:59 pm

1 stop5h 34m

Seattle/Tacoma Intl

Mon 8/25

5:02 am-12:09 pm

1 stop6h 07m

$296

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 8/15

6:35 pm-10:59 pm

1 stop5h 24m

Seattle/Tacoma Intl

Tue 8/19

5:02 am-10:54 am

1 stop4h 52m

$302

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 $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 $309.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $286. 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 $440.

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

Flying to Seattle from Colorado Springs in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $257 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $382. 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 $376 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 $301 on momondo.

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

As of July 2025, prices for Colorado Springs to Seattle flights are approximately 1% 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

$99

Fastest flight time

4h 50m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Colorado Springs in the past 72 hours is $99. The best round-trip flight deal from Colorado Springs to Seattle found on momondo in the last 72 hours is $197.
The fastest flight from Colorado Springs to Seattle takes 4h 50m
There are no direct flights from Colorado Springs to Seattle. Popular non-direct route for this connection is Colorado Springs Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
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 50m, 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 $182Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $206Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
SouthwestPriceFrom $246Free CancellationRating
8.0
4,246 reviews
Search Southwest 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
Olympia
Renton
Kent
Federal Way
Puyallup
Lynnwood
Marysville
Tukwila
Kirkland
Lakewood
Fife
Centralia
Cle Elum
Shoreline
Westport
Redmond

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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