COS - SEA

$144 Find Cheap Flights from Colorado Springs to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$287
Typical prices: $282-$469
Southwest
Wed 12/12Sat 12/15
COS - SEA • 1 stop
Cheapest one-way
$144
Typical prices: $153-$272
Delta
Sun 9/30
COS - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Colorado Springs and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
12 weeks
in advance
Our data shows that travelers who book at least 12 weeks in advance save around 60% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 40% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Diego (SAN)
Cheapest • Avg $294 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 20m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Colorado Springs to Seattle (COS-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado Springs to Seattle

Sat, Oct 24 - Sat, Oct 31
Delta Logo
8:17 am - 2:50 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 33m1 stop Salt Lake City
Delta Logo
9:42 am - 5:32 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 50m1 stop Salt Lake City
$287Delta
Sat, Dec 12 - Tue, Dec 15
Southwest Logo
6:00 am - 11:20 amCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 20m1 stop Phoenix Sky Harbor Intl
Southwest Logo
5:40 am - 1:00 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 20m1 stop Phoenix Sky Harbor Intl
$287Southwest
Sat, Oct 24 - Sat, Oct 31
Southwest Logo
5:25 pm - 10:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
11:45 am - 6:30 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 45m1 stop Phoenix Sky Harbor Intl
$287Southwest
Sat, Oct 24 - Sat, Oct 31
Southwest Logo
5:25 pm - 10:25 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
7:55 am - 4:05 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 10m2 stops Oakland Las Vegas Harry Reid Intl
$292Southwest
Wed, Oct 14 - Tue, Oct 20
United Airlines Logo
5:08 pm - 10:59 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 51m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:27 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 27m1 stop Denver Intl
$297United Airlines
Sat, Oct 17 - Tue, Oct 20
United Airlines Logo
5:07 pm - 9:15 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 08m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:27 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 27m1 stop Denver Intl
$297United Airlines
Sat, Oct 10 - Sat, Oct 17
Delta Logo
6:07 pm - 10:05 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
4h 58m1 stop Salt Lake City
Delta Logo
9:42 am - 5:27 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 45m1 stop Salt Lake City
$307Delta
Tue, Oct 13 - Wed, Oct 21
Delta Logo
6:07 pm - 10:05 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
4h 58m1 stop Salt Lake City
Delta Logo
11:05 am - 5:27 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
5h 22m1 stop Salt Lake City
$307Delta
Sun, Nov 22 - Mon, Nov 30
American Airlines Logo
8:00 am - 2:51 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 51m1 stop Dallas/Fort Worth
American Airlines Logo
3:41 pm - 11:56 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 15m1 stop Dallas/Fort Worth
$568American Airlines
Sun, Feb 28 - Sun, Mar 7
American Airlines Logo
1:10 pm - 10:08 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
9h 58m1 stop Dallas/Fort Worth
American Airlines Logo
6:22 pm - 9:41 amSEA  Seattle/Tacoma Intl-COS Colorado Springs
14h 19m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$643American Airlines
Booking Insights

Price, demand and travel trends for Colorado Springs to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Colorado Springs to Seattle with more confidence.

How much is a round-trip flight from Colorado Springs to Seattle?

Round-trip flights from Colorado Springs to Seattle start at $287. Prices are typical for this route right now, with typical round-trip fares ranging from $282 to $469. The lowest price found in the past 5 days was $287 on Southwest.

What's the cheapest day of the week to fly from Colorado Springs to Seattle?

Friday is the cheapest day of the week to fly from Colorado Springs to Seattle, it is 21% cheaper than the average day. Monday is the most expensive day with flight prices 34% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Colorado Springs to Seattle?

  • January is the cheapest month to fly from Colorado Springs to Seattle at $224 round-trip.
  • June ($579) and December ($471) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 158% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Colorado Springs to Seattle the cheapest?

Flights from Colorado Springs to Seattle are cheapest 12 weeks before departure. Booking in this window typically costs about 60% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Colorado Springs to Seattle flights

Low season

January

Cheapest flight

$144
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Colorado Springs to Seattle

When to book flights from Colorado Springs to Seattle

Are your dates flexible? Find out the best times to travel from Colorado Springs to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Colorado Springs to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Colorado Springs to Seattle?

    Flights from Colorado Springs to Seattle usually depart from Colorado Springs (COS) and arrive at Seattle/Tacoma Intl (SEA).

  • What cabin classes can I book on flights from Colorado Springs to Seattle?

    Two cabin classes are available on flights from Colorado Springs to Seattle:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Colorado Springs to Seattle pass through?

    One-stop flights from Colorado Springs to Seattle most commonly connect through:

    • Denver Intl (DEN) - 65% of one-stop connections
    • Salt Lake City (SLC) - 21% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 5% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 4% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Colorado Springs to Seattle?

    Yes. Being flexible with your travel dates can save you up to 42% on the Colorado Springs to Seattle route. Friday is the cheapest departure day at $294 round-trip on average, while Monday is the most expensive at $501, a difference of $207. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Pier 66 and Lumen Field. These are among the most viewed places in Seattle on KAYAK.

  • How expensive are last-minute Colorado Springs to Seattle flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 18% above the route average of $372. Book 12 weeks before departure for the lowest fares.

  • How long is a flight from Colorado Springs to Seattle?

    A nonstop flight from Colorado Springs to Seattle takes 0h 00m, covering 1,065 miles.

  • Do I need a passport to fly from Colorado Springs to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Colorado Springs to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $287 to $1,247. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Colorado Springs to Seattle looking right now?

    One-way fares from Colorado Springs to Seattle are currently lower than usual. Average one-way flight prices are about $173, which is 15% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Colorado Springs to Seattle?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 20m, compared with 5h 26m via Salt Lake City (SLC) and 6h 19m via San Diego (SAN).

  • What is the time difference between Colorado Springs and Seattle?

    Seattle is 1 hour behind Colorado Springs (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    · Fox
    · Europcar
    · Thrifty
    · Budget
    · Dollar

  • How much should I expect to pay for a Colorado Springs to Seattle flight?

    Round-trip flights from Colorado Springs to Seattle range from $282 to $469, with an average of $372 over the past 12 months. Anything below $282 counts as a good deal.

Your guide to booking Colorado Springs to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Monday. On this route, Friday flights average $294 - about $207 less than Monday (41% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 12 weeks before you fly. On this route, that window historically saves about 60% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Colorado Springs to Seattle trip for January. Fares historically average $224 round-trip in that month - typically $355 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Colorado Springs to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle