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: $296-$478
Southwest
Sat 12/8Mon 12/10
COS - SEA • 1 stop
Cheapest one-way
$144
Typical prices: $173-$287
Southwest
Sat 12/8
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
10 weeks
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 41% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $341 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 18m (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

Tue, Dec 8 - Thu, Dec 10
Southwest Logo
5:35 pm - 10:20 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 45m1 stop Las Vegas Harry Reid Intl
Southwest Logo
5:40 am - 1:00 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 20m1 stop Phoenix Sky Harbor Intl
$287Southwest
Sat, Nov 21 - Thu, Nov 26
Delta Logo
6:08 pm - 10:44 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 36m1 stop Salt Lake City
Delta Logo
11:30 am - 5:28 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 58m1 stop Salt Lake City
$287Delta
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
5:05 pm - 9:21 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 16m1 stop Denver Intl
United Airlines Logo
4:04 pm - 10:03 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 59m1 stop Denver Intl
$287United Airlines
Thu, Dec 10 - Mon, Dec 14
United Airlines Logo
1:40 pm - 6:24 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 44m1 stop Denver Intl
United Airlines Logo
5:05 am - 12:37 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 32m1 stop Denver Intl
$287United Airlines
Thu, Nov 19 - Mon, Nov 23
United Airlines Logo
6:25 pm - 11:15 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 50m1 stop Denver Intl
United Airlines Logo
3:49 pm - 11:59 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
7h 10m1 stop Denver Intl
$287United Airlines
Thu, Nov 19 - Thu, Nov 26
Delta Logo
6:08 pm - 11:59 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
6h 51m1 stop Salt Lake City
Delta Logo
11:30 am - 5:28 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 58m1 stop Salt Lake City
$287Delta
Mon, Dec 7 - Thu, Dec 10
Delta Logo
8:02 am - 2:43 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 41m1 stop Salt Lake City
Delta Logo
11:30 am - 5:23 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
4h 53m1 stop Salt Lake City
$287Delta
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
11:50 am - 5:50 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
7h 00m1 stop Denver Intl
Southwest Logo
1:55 pm - 9:50 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
6h 55m1 stop Denver Intl
$307Southwest
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
5:35 pm - 10:20 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
5h 45m1 stop Las Vegas Harry Reid Intl
Southwest Logo
11:15 am - 9:50 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 35m2 stops Sacramento Intl Denver Intl
$312Southwest
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
3:05 pm - 10:20 pmCOS  Colorado Springs-SEA Seattle/Tacoma Intl
8h 15m2 stops Phoenix Sky Harbor Intl Sacramento Intl
Southwest Logo
11:15 am - 9:50 pmSEA  Seattle/Tacoma Intl-COS Colorado Springs
9h 35m2 stops Sacramento Intl Denver Intl
$317Southwest
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 with more confidence.

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

Round-trip flights from Colorado Springs to Seattle typically range from $296 to $478. 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?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Colorado Springs to Seattle. It’s 17% cheaper than the average day, while Monday is the most expensive, with prices 31% higher.

What’s 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 ($486) 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 flights from Colorado Springs to Seattle the cheapest?

Flights from Colorado Springs to Seattle are cheapest 10 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Colorado Springs to Seattle flights

Low season

January

Cheapest flight

$144
Beat the crowds with an average 37% drop in travelers.
The most popular month to fly with an average 31% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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

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

    A nonstop flight from Colorado Springs to Seattle takes 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.

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

    Round-trip flights from Colorado Springs to Seattle range from $296 to $478, with an average of $382 over the past 12 months. Anything below $296 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the $382 route average. Book 10 weeks before departure for the lowest fares.

  • 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 $1,831. That means the highest observed fare was about 6x 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 $168, which is 27% below the typical average for this route.

  • 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 averaging $61 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • 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).

  • 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) - 64% of one-stop connections
    • Salt Lake City (SLC) - 22% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 5% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 37% on flights from Colorado Springs to Seattle. Friday is the cheapest departure day at $318 round-trip on average, while Monday is the most expensive at $501, a difference of $183.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 18m, compared with 5h 27m 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 popular places can I visit in Seattle?

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

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 are flexible, aim for a Friday departure and avoid flying on Monday. On this route, Friday flights average $318, about $183 less than Monday fares (37% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 38% 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.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • 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