Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Seattle to Colorado from $38

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 departing on 7/6. 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
0 bags
Wed 6/5
Wed 6/12

Search hundreds of travel sites at once for deals on flights to Colorado

In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Colorado Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Denver
Denvernonstop$73
Aspen
Aspen1 stop$417
Grand Junction
Grand Junction1 stop$264
Vail
Vail1 stop$477
Durango
Durango1 stop$350
Montrose
Montrose1 stop$316
Hayden
Hayden1 stop$432
Gunnison
Gunnison1 stop$522

Good to know

Low season

January

High season

July

Cheapest flight

$38
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Seattle to Denver

FAQs - booking Colorado flights

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado 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?

    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 with an airline and back to Seattle with another airline.

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

    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 from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Denver $88 one-way - $152 round-trip
  • Morning departure is around 9% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Seattle to Colorado

 
Need help choosing which airline to fly with from Seattle to Colorado? 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.
8.3
EVA AirOverall score based on 1537 reviews
8.2Comfort
8.6Crew
8.0Entertainment
7.9Food
8.4Boarding
Airline reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

8.0 ExcellentAnonymous, Apr 2024TPE - JFK
Read more about EVA Air reviews

The type of the food requested (Asian vegetarian) was not properly met with. They have very limited snack items that may compensate for the main meals.

The quality of the food is pretty good. Thank you, EVA Air.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

Pleasant crew. Very long flight, a bit uncomfortable at times being seated, but not too bad.

No ice for the drinks. Only gave a half a cup of your beverage. Not enough water. I got very dehydrated.

Eva is one of the top airlines in Asia... but often are over priced. Finally found a reasonable rate.

My original flight was rescheduled & EVA did a good job rescheduling my flight & connecting flight.

Polite hard working crew. No complaints really. Meals were not to my liking.

Everything was fantastic! The crew really went above and beyond to make it a great flight. I felt cared for with EVA.

t and I Flight crew did excellent job taking care of us and feeding us and staying professional. The boarding was delayed by an hour and then extra security measures were taken. No real explanation except for they said it was more of a maintenance dey

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

Easy peasy. Crew was great. Take-off and landing nice anc chill (good job by the pilot). Thank you UA!

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

It was an excellent experience, traveling from Toronto to Denver with United.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

The Air Canada agent was very helpful helping with my luggage and cat carrier when I went there instead of United.

Lost my bag. My first ever flight with them that they forced me to gate check my bag on, due to them having a 30 year old plane with small carry on bins, and they lost my bag. Never again.

United force you to download their App to do the check-in.

Economy seats were surprisingly comfortable, and snacks not too bad. Checked luggage arrived at destination without problems. It was annoying to wait until last to board as lowest-tier seats but understand it’s difficult to gauge when loading a full plane At least checked carryon luggage seemed to come off first. Annoying to have to use app to order food/drink when wifi availability didn’t allow time for it. Advance communication would have helped Food on menu seemed highly processed and unpalatable, overpriced and over packaged. So maybe a good thing to have missed chance to order

I liked Seattle but nothing air Canada did there was any good at all neither was kayak as when I purchased my flights the price I purchased at was not what kayak charged to my card and there has been no responses to my emails ....

There is no food or entertainment on these short flights. Again the wheelchair situation in Denver is nasty. They are short staffed due to cut backs and layoffs and this impacts on travel comfort and ease.

Book cheap flights from Seattle to Colorado

Recent round-trip flight deals

5/21Tue
nonstopFrontier
3h 01mSEA-DEN
5/26Sun
nonstopFrontier
3h 03mDEN-SEA
$73
5/22Wed
nonstopFrontier
2h 52mSEA-DEN
5/29Wed
nonstopFrontier
3h 03mDEN-SEA
$75
5/29Wed
1 stopAlaska Airlines
6h 52mSEA-DEN
6/8Sat
nonstopAlaska Airlines
2h 57mDEN-SEA
$178
7/21Sun
nonstopDelta
2h 48mSEA-DEN
7/27Sat
nonstopDelta
3h 00mDEN-SEA
$182
6/28Fri
nonstopDelta
2h 44mSEA-DEN
7/1Mon
nonstopDelta
3h 04mDEN-SEA
$187
5/10Fri
1 stopAmerican Airlines
7h 45mSEA-COS
5/14Tue
2 stopsAmerican Airlines
10h 29mCOS-SEA
$245
5/10Fri
1 stopAmerican Airlines
7h 45mSEA-COS
5/14Tue
1 stopAmerican Airlines
8h 07mCOS-SEA
$256
5/29Wed
1 stopUnited Airlines
4h 46mSEA-MTJ
6/5Wed
1 stopUnited Airlines
6h 53mMTJ-SEA
$316
5/29Wed
1 stopUnited Airlines
4h 33mSEA-MTJ
6/6Thu
1 stopUnited Airlines
4h 57mMTJ-SEA
$327
8/25Sun
1 stopAlaska Airlines
7h 55mSEA-GJT
8/31Sat
1 stopAlaska Airlines
7h 51mGJT-SEA
$487

Search by stops

Search by airline

Search by price

Recent one-way flight deals

7/6Sat
nonstopFrontier
2h 41mSEA-DEN
$38
9/23Mon
nonstopFrontier
2h 43mSEA-DEN
$39
5/26Sun
nonstopDelta
2h 54mSEA-DEN
$94
5/29Wed
1 stopAlaska Airlines
4h 11mSEA-DEN
$103
6/21Fri
nonstopDelta
2h 44mSEA-DEN
$109
5/22Wed
nonstopAlaska Airlines
2h 47mSEA-DEN
$115
5/23Thu
1 stopAmerican Airlines
8h 24mSEA-DEN
$120
6/4Tue
1 stopAmerican Airlines
5h 28mSEA-DEN
$124
6/5Wed
1 stopUnited Airlines
7h 29mSEA-DEN
$133
5/10Fri
1 stopUnited Airlines
7h 22mSEA-DEN
$163

Search by stops

Search by airline

Search by price

Last minute flights from Seattle to Colorado

Last minute flight, train and bus deals

5/10Fri
nonstopFrontier
2h 50mSEA-DEN
5/17Fri
nonstopFrontier
3h 05mDEN-SEA
$141
5/10Fri
multi-stopFrontier
6h 14mSEA-DEN
5/11Sat
multi-stopFrontier
12h 19mDEN-SEA
$154
5/10Fri
multi-stopAmerican Airlines
7h 45mSEA-COS
5/14Tue
multi-stopAmerican Airlines
10h 29mCOS-SEA
$245
5/9Thu
multi-stopAmerican Airlines
8h 24mSEA-DEN
5/14Tue
multi-stopAmerican Airlines
5h 44mDEN-SEA
$256
5/7Tue
multi-stopDelta
7h 25mSEA-DEN
5/15Wed
nonstopDelta
3h 03mDEN-SEA
$311
5/6Mon
multi-stopUnited Airlines
6h 57mSEA-DEN
5/7Tue
nonstopUnited Airlines
3h 03mDEN-SEA
$316
5/7Tue
nonstopUnited Airlines
2h 51mSEA-DEN
5/11Sat
multi-stopUnited Airlines
8h 38mDEN-SEA
$317
5/9Thu
nonstopDelta
2h 48mSEA-DEN
5/13Mon
multi-stopDelta
6h 49mDEN-SEA
$321
5/10Fri
multi-stopAlaska Airlines
6h 47mSEA-DEN
5/17Fri
multi-stopAlaska Airlines
13h 11mDEN-SEA
$675
5/9Thu
multi-stopAlaska Airlines
9h 30mSEA-DEN
5/10Fri
multi-stopAlaska Airlines
5h 12mDEN-SEA
$750

Search by stops

Search by airline

Search by price