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Cheap flights from Colorado Springs to Seattle from $131

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 1/9. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:00 pm - 4:40 pm
COS
-
SEA
5h 40m1 stop
Delta Logo
5:25 am - 11:17 am
SEA
-
COS
4h 52m1 stop
$137Delta
Sat, Jan 10 - Sat, Jan 17
Delta Logo
12:00 pm - 10:24 pm
COS
-
SEA
11h 24m2 stops
Delta Logo
5:25 am - 11:17 am
SEA
-
COS
4h 52m1 stop
$142Delta
Sat, Jan 10 - Sat, Jan 17
Delta Logo
12:03 pm - 6:29 pm
COS
-
SEA
7h 26m1 stop
Delta Logo
11:17 am - 10:23 pm
SEA
-
COS
10h 06m2 stops
$173Delta
Thu, Feb 5 - Mon, Feb 9
Delta Logo
12:00 pm - 6:29 pm
COS
-
SEA
7h 29m1 stop
Delta Logo
5:25 am - 11:17 am
SEA
-
COS
4h 52m1 stop
$203Delta
Sun, Jan 11 - Tue, Jan 13
Delta Logo
7:59 am - 4:58 pm
COS
-
SEA
9h 59m2 stops
Delta Logo
4:55 pm - 10:23 pm
SEA
-
COS
4h 28m1 stop
$208Delta
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
5:50 am - 9:55 am
COS
-
SEA
5h 05m1 stop
United Airlines Logo
5:00 am - 10:57 am
SEA
-
COS
4h 57m1 stop
$219United Airlines
Fri, Jan 16 - Sun, Jan 18
United Airlines Logo
3:30 pm - 12:59 am
COS
-
SEA
10h 29m2 stops
United Airlines Logo
8:40 am - 2:34 pm
SEA
-
COS
4h 54m1 stop
$223United Airlines
Tue, Jan 27 - Thu, Jan 29
United Airlines Logo
1:25 pm - 9:12 pm
COS
-
SEA
8h 47m2 stops
United Airlines Logo
5:00 am - 10:57 am
SEA
-
COS
4h 57m1 stop
$224United Airlines
Thu, Jan 15 - Mon, Jan 19
Southwest Logo
5:40 pm - 11:40 pm
COS
-
SEA
7h 00m1 stop
Southwest Logo
5:15 am - 11:20 am
SEA
-
COS
5h 05m1 stop
$225Southwest
Mon, Feb 9 - Mon, Feb 23
Southwest Logo
4:50 pm - 11:40 pm
COS
-
SEA
7h 50m2 stops
Southwest Logo
5:15 am - 11:20 am
SEA
-
COS
5h 05m1 stop
$230Southwest
Mon, Feb 9 - Mon, Feb 23

Delta flights from Colorado Springs to Seattle

Our best Delta deals on Colorado Springs to Seattle flight tickets
Delta
Jan 10
COS12:00 pmColorado Springs
5h 40m
1 stop
SEA4:40 pmSeattle/Tacoma Intl
Jan 17
SEA5:25 amSeattle/Tacoma Intl
4h 52m
1 stop
COS11:17 amColorado Springs
$137
Find similar
Delta
Jan 16
COS7:59 amColorado Springs
9h 59m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
Jan 20
SEA5:30 amSeattle/Tacoma Intl
4h 47m
1 stop
COS11:17 amColorado Springs
$142
Find similar
Delta
Jan 16
COS7:59 amColorado Springs
9h 59m
2 stops
SEA4:58 pmSeattle/Tacoma Intl
Jan 20
SEA11:17 amSeattle/Tacoma Intl
10h 06m
2 stops
COS10:23 pmColorado Springs
$147
Find similar

Southwest flights from Colorado Springs to Seattle

Our best Southwest deals on Colorado Springs to Seattle flight tickets
Southwest
Jan 16
COS6:10 pmColorado Springs
6h 05m
1 stop
SEA11:15 pmSeattle/Tacoma Intl
Jan 20
SEA2:05 pmSeattle/Tacoma Intl
6h 30m
1 stop
COS9:35 pmColorado Springs
$151
Find similar
Southwest
Feb 9
COS5:40 pmColorado Springs
7h 00m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
Feb 23
SEA5:15 amSeattle/Tacoma Intl
5h 05m
1 stop
COS11:20 amColorado Springs
$225
Find similar
Southwest
Feb 9
COS4:50 pmColorado Springs
7h 50m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
Feb 23
SEA5:15 amSeattle/Tacoma Intl
5h 05m
1 stop
COS11:20 amColorado Springs
$230
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 December 21, 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

Sat 1/10

12:00 pm-4:40 pm

1 stop5h 40m

Seattle/Tacoma Intl

Sat 1/17

5:25 am-11:17 am

1 stop4h 52m

$137

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sat 1/10

12:00 pm-10:24 pm

2 stops11h 24m

Seattle/Tacoma Intl

Sat 1/17

5:25 am-11:17 am

1 stop4h 52m

$142

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 2/5

12:03 pm-6:29 pm

1 stop7h 26m

Seattle/Tacoma Intl

Mon 2/9

11:17 am-10:23 pm

2 stops10h 06m

$173

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Sun 1/11

12:00 pm-6:29 pm

1 stop7h 29m

Seattle/Tacoma Intl

Tue 1/13

5:25 am-11:17 am

1 stop4h 52m

$203

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 1/16

7:59 am-4:58 pm

2 stops9h 59m

Seattle/Tacoma Intl

Fri 1/23

4:55 pm-10:23 pm

1 stop4h 28m

$208

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Fri 1/16

5:50 am-9:55 am

1 stop5h 05m

Seattle/Tacoma Intl

Sun 1/18

5:00 am-10:57 am

1 stop4h 57m

$219

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Tue 1/27

3:30 pm-12:59 am

2 stops10h 29m

Seattle/Tacoma Intl

Thu 1/29

8:40 am-2:34 pm

1 stop4h 54m

$223

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Thu 1/15

1:25 pm-9:12 pm

2 stops8h 47m

Seattle/Tacoma Intl

Mon 1/19

5:00 am-10:57 am

1 stop4h 57m

$224

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Mon 2/9

5:40 pm-11:40 pm

1 stop7h 00m

Seattle/Tacoma Intl

Mon 2/23

5:15 am-11:20 am

1 stop5h 05m

$225

Colorado SpringsSeattle

COS - SEA

COSSEA

Colorado Springs

Mon 2/9

4:50 pm-11:40 pm

2 stops7h 50m

Seattle/Tacoma Intl

Mon 2/23

5:15 am-11:20 am

1 stop5h 05m

$230

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 October to fly from Colorado Springs, when ticket prices are also cheap, with an average price of $279.

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 $291. 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 $466.

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 $276 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $393. 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 $355 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 $292 on momondo.

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

As of December 2025, prices for Colorado Springs to Seattle flights are approximately 37% 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

Fastest flight time

4h 59m

Direct flights

None
The fastest flight from Colorado Springs to Seattle takes 4h 59m
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 59m, 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 $156Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $186Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,257 reviews
Search Southwest flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,100 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
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
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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