SEA - COS

$149 Find Cheap Flights from Seattle to Colorado Springs

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Colorado Springs departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado Springs

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Colorado Springs, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Colorado Springs, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$243
Typical prices: $407-$282
Delta
Tue 9/29Tue 10/6
SEA - COS • 1 stop
Cheapest one-way
$149
Typical prices: $141-$268
United Airlines
Tue 9/29
SEA - COS • 1 stop
Top airlines
Cheapest • from $243 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Colorado Springs. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $323 (round-trip)
Shortest trip • 4h 55m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 44% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Colorado Springs!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Colorado Springs that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Colorado Springs

Tue, Sep 29 - Tue, Oct 6
Delta Logo
11:22 am - 5:34 pm
SEA
-
COS
5h 12m
1 stop
Delta Logo
5:55 pm - 10:05 pm
COS
-
SEA
5h 10m
1 stop
$243Delta
Tue, Sep 29 - Tue, Oct 6
Delta Logo
12:36 pm - 10:54 pm
SEA
-
COS
9h 18m
2 stops
Delta Logo
8:00 am - 2:50 pm
COS
-
SEA
7h 50m
1 stop
$248Delta
Fri, Sep 18 - Tue, Sep 22
Delta Logo
12:36 pm - 10:54 pm
SEA
-
COS
9h 18m
2 stops
Delta Logo
6:14 pm - 10:05 pm
COS
-
SEA
4h 51m
1 stop
$264Delta
Fri, Aug 7 - Wed, Aug 12
Southwest Logo
9:10 am - 4:30 pm
SEA
-
COS
6h 20m
1 stop
Southwest Logo
5:20 pm - 11:25 pm
COS
-
SEA
7h 05m
1 stop
$291Southwest
Fri, Jul 3 - Fri, Jul 10
Southwest Logo
5:20 pm - 1:20 am
SEA
-
COS
7h 00m
1 stop
Southwest Logo
7:55 pm - 12:55 am
COS
-
SEA
6h 00m
1 stop
$292Southwest
Fri, Aug 7 - Wed, Aug 12
Southwest Logo
9:10 am - 4:30 pm
SEA
-
COS
6h 20m
1 stop
Southwest Logo
1:15 pm - 9:15 pm
COS
-
SEA
9h 00m
2 stops
$296Southwest
Sat, Aug 8 - Wed, Aug 12
Southwest Logo
5:30 am - 12:10 pm
SEA
-
COS
5h 40m
1 stop
Southwest Logo
5:20 pm - 11:25 pm
COS
-
SEA
7h 05m
1 stop
$303Southwest
Sat, Aug 8 - Wed, Aug 12
Southwest Logo
5:30 am - 12:10 pm
SEA
-
COS
5h 40m
1 stop
Southwest Logo
1:15 pm - 9:15 pm
COS
-
SEA
9h 00m
2 stops
$308Southwest
Wed, Jul 15 - Sat, Jul 18
Delta Logo
9:30 am - 5:35 pm
SEA
-
COS
7h 05m
1 stop
Delta Logo
6:16 pm - 10:00 pm
COS
-
SEA
4h 44m
1 stop
$325Delta
Fri, Jul 3 - Fri, Jul 10
Southwest Logo
5:20 pm - 1:20 am
SEA
-
COS
7h 00m
1 stop
Southwest Logo
4:55 pm - 11:35 pm
COS
-
SEA
7h 40m
2 stops
$327Southwest
Booking Insights

KAYAK's insights & trends for Seattle to Colorado Springs flights

Get data-powered insights and trends into flights from Seattle to Colorado Springs to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Colorado Springs departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Colorado Springs, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Colorado Springs is January, where tickets cost $187 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $461 and $386 respectively.

How far in advance should I book a flight from Seattle to Colorado Springs?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Colorado Springs, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Colorado Springs, you should book around 4 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$149
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Seattle to Colorado Springs

When to book flights from Seattle to Colorado Springs

Are your dates flexible? Find out the best times to travel from Seattle to Colorado Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Colorado Springs

  • What is the cheapest flight from Seattle to Colorado Springs?

    In the last 3 days, the lowest price for a flight from Seattle to Colorado Springs was $149 for a one-way ticket and $243 for a round-trip.

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

    No, a passport isn't needed to fly from Seattle to Colorado Springs. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Seattle to Colorado Springs?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Colorado Springs?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Colorado Springs, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Colorado Springs from Seattle?

    Denver is the most popular layover city among KAYAK users traveling from Seattle to Colorado Springs.

  • Which is the best airline for flights from Seattle to Colorado Springs, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Colorado Springs are Southwest and Delta. With an average price for the route of $353 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $282 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seattle to Colorado Springs?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Colorado Springs.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Colorado Springs?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado Springs from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Colorado Springs?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Colorado Springs with an airline and back to Seattle with another airline. Booking your flights between Seattle and COS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Colorado Springs?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Colorado Springs from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Seattle to Colorado Springs

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Colorado Springs. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Colorado Springs? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4263 reviews
8.1Boarding
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

It was a short flight so I was expecting too much

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Everything you need to know for your flight from Seattle to Colorado Springs

Information on your arrival and departure airports