SEA - COS

$69 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 2/21. 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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Everything you should know

Cheapest round-trip
$137
Overall average: $302
Delta
Thu 2/5Wed 2/11
SEA - COS • 1 stop
Cheapest one-way
$69
Typical prices: $140-$238
Delta
Sat 2/21
SEA - COS • 1 stop
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 21% price drop
March
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

Thu, Feb 5 - Wed, Feb 11
Delta Logo
5:00 am - 11:18 am
SEA
-
COS
5h 18m
1 stop
Delta Logo
7:59 am - 12:33 pm
COS
-
SEA
5h 34m
1 stop
$137Delta
Thu, Feb 5 - Wed, Feb 11
Delta Logo
5:00 am - 11:18 am
SEA
-
COS
5h 18m
1 stop
Delta Logo
7:59 am - 6:42 pm
COS
-
SEA
11h 43m
2 stops
$142Delta
Tue, Feb 24 - Thu, Mar 5
Southwest Logo
2:05 pm - 9:35 pm
SEA
-
COS
6h 30m
1 stop
Southwest Logo
5:55 am - 2:30 pm
COS
-
SEA
9h 35m
2 stops
$156Southwest
Tue, Feb 10 - Tue, Feb 17
Delta Logo
5:30 am - 11:18 am
SEA
-
COS
4h 48m
1 stop
Delta Logo
12:00 pm - 4:48 pm
COS
-
SEA
5h 48m
1 stop
$157Delta
Tue, Feb 10 - Thu, Feb 19
American Airlines Logo
6:00 am - 2:12 pm
SEA
-
COS
7h 12m
1 stop
American Airlines Logo
4:49 pm - 12:55 am
COS
-
SEA
9h 06m
1 stop
$159American Airlines
Tue, Apr 7 - Tue, Apr 21
Delta Logo
5:30 am - 11:14 am
SEA
-
COS
4h 44m
1 stop
Delta Logo
7:59 am - 2:46 pm
COS
-
SEA
7h 47m
1 stop
$177Delta
Mon, Mar 16 - Tue, Mar 17
Delta Logo
5:30 am - 11:14 am
SEA
-
COS
4h 44m
1 stop
Delta Logo
7:55 am - 2:54 pm
COS
-
SEA
7h 59m
1 stop
$178Delta
Tue, Apr 7 - Tue, Apr 21
Delta Logo
5:30 am - 11:14 am
SEA
-
COS
4h 44m
1 stop
Delta Logo
7:59 am - 6:39 pm
COS
-
SEA
11h 40m
2 stops
$182Delta
Thu, Feb 5 - Wed, Feb 11
Delta Logo
5:00 am - 11:18 am
SEA
-
COS
5h 18m
1 stop
Delta Logo
7:59 am - 6:42 pm
COS
-
SEA
11h 43m
2 stops
$183Delta
Tue, Apr 7 - Tue, Apr 21
Delta Logo
5:30 am - 11:14 am
SEA
-
COS
4h 44m
1 stop
Delta Logo
7:59 am - 2:46 pm
COS
-
SEA
7h 47m
1 stop
$197Delta
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.

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 October, where tickets cost $296 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $461 and $446 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 3 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$69
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 10% 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 $69 for a one-way ticket and $137 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 $363 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 $241 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 4258 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

We got exit row seats both flights. Everything was running on time

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Terrible. They wouldn't allow me on my flight on the 14th..

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

Information on your arrival and departure airports