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Find cheap flights from Seattle to Fort Collins from $28

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 Fort Collins departing on 8/24. 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
Thu 7/11
Thu 7/18

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Good to know

Low season

January

High season

June

Cheapest flight

$28
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Seattle to Denver

When to book flights from Seattle to Fort Collins

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

FAQs for booking flights from Seattle to Fort Collins

  • Which airports will I be using when flying from Seattle to Fort Collins?

    When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Fort Collins does not have its own airport so you’ll be flying into nearby Denver Intl airport, which is 54.6 mi away.

  • How long does a flight from Seattle to Fort Collins take?

    Direct flights cover the 1,022 miles separating Seattle and Fort Collins in about 2h 38m.

  • How many flights are there between Seattle and Fort Collins?

    67 direct flights run between Seattle and Fort Collins on a daily basis. On average, there are about 473 departures each week.

  • What’s the cheapest day of the week to fly between Seattle and Fort Collins?

    Consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

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

    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 Fort Collins.

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

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

    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 Fort Collins 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 Fort Collins?

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

  • Which airlines provide the cheapest flights from Seattle to Fort Collins?

    In the last 72 hours, the cheapest one-way ticket between Seattle and Fort Collins found on KAYAK was with Frontier for $28. Frontier offered a round-trip connection from $51 and Delta from $109.

See more FAQs

Top tips for finding cheap flights from Seattle to Fort Collins

  • There is no airport in Fort Collins. Instead, you’ll be flying into Denver Airport when flying between Seattle and Fort Collins.
  • The cheapest flight from Seattle to Fort Collins was found 71 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is January.
See more tips

Top 5 airlines serving Seattle to Fort Collins

Need help choosing which airline to fly with from Seattle to Fort Collins? 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
Alaska AirlinesOverall score based on 9267 reviews
7.9Comfort
8.6Crew
8.2Boarding
7.3Entertainment
7.3Food
Airline reviews

I was in second from last seat. My luggage was in row 15. I asked the stewardess if I could move up before the plane lands. There were 3 empty rows. She went on to explain to me, how no one was sitting there when the plane took off and there was no education on the exit doors. Blah, blah, blah. I said ok, S he kept over explaining to me. So whatever if that’s the rules. She went in the back to the other 2 stewards to tell them the entire conversation I just had with her. Not only could I hear her so could all the back rows of the plane. This was very unprofessional and inappropriate.

6.0 GoodAnonymous, Jun 2024SEA - DTW
Read more about Alaska Airlines reviews

I was in second from last seat. My luggage was in row 15. I asked the stewardess if I could move up before the plane lands. There were 3 empty rows. She went on to explain to me, how no one was sitting there when the plane took off and there was no education on the exit doors. Blah, blah, blah. I said ok, S he kept over explaining to me. So whatever if that’s the rules. She went in the back to the other 2 stewards to tell them the entire conversation I just had with her. Not only could I hear her so could all the back rows of the plane. This was very unprofessional and inappropriate.

The crew members were wonderful. When we encountered a little turbulence, the pilots let us know and provided an estimate of how long it would last. Another nice amenity: every seat has AC power outlets and USB ports. It was a 6-hour flight, which seems a bit much for a single-aisle jet: over 200 passengers with access to only 3 restrooms (assuming you time it right and won't be blocked in by beverage carts); food is mediocre, over-priced, and (if you failed to reserve a meal ahead of time) the flight attendants have to process food/meal sales in the aisle. To access any entertainment, you must use your own device to log on to the plane's wi-fi (or bring your own entertainment).

Seats are more spacious than other airlines that have you packed like sardines.

I would have appreciated notification that our flight was moved to another gate LAST MINUTE so that we would not have missed it. We got no such notice and had to spend another night to catch an available flight in the morning, which was huge inconvenience. We will never fly Alaska again.

Liked premium seat. Did not like: having to pay for entertainment/wi-fi; having to pay for food; single-aisle; and, only three rest rooms.

The airline was way too cold. We were freezing, I don’t know if that is normal. Overall it was pretty good flight. Always flown Alaska Airlines and I am not changing.

I was sitting in row 31 and felt bad smell coming from the toilets especially when boarding and exiting not much during the flight.

Great. They got us on an earlier flight. Really appreciated that

I had very little legroom and the only food available was really salty

Offer snacks/meals for people with food sensitivities. HAVE TV SCREENS!

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

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.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Not worth the price of premium class ticket paid, felt more like steerage.

The Wi-Fi was unavailable on this flight for some reason.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

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.

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

9 hours of delay!! Was not able to check my luggage that I paid for!!!

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Plane could have been more on time. More leg room .

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Not have to pay for every single item to take a flight. Seating and delays sucked.

Terrible. Seats are bad and the baggage policy is inconsistent

Book cheap flights from Seattle to Fort Collins

Recent round-trip flight deals

9/7Sat
nonstopFrontier
2h 43mSEA-DEN
9/14Sat
nonstopFrontier
3h 02mDEN-SEA
$51
9/16Mon
nonstopFrontier
2h 43mSEA-DEN
9/21Sat
nonstopFrontier
3h 02mDEN-SEA
$57
9/4Wed
nonstopFrontier
2h 43mSEA-DEN
9/10Tue
nonstopFrontier
3h 02mDEN-SEA
$59
8/17Sat
nonstop
2h 44mSEA-DEN
8/24Sat
nonstop
3h 02mDEN-SEA
$92
9/5Thu
nonstop
2h 39mSEA-DEN
9/8Sun
nonstop
3h 02mDEN-SEA
$108
9/26Thu
nonstopDelta
2h 45mSEA-DEN
9/30Mon
nonstopDelta
3h 00mDEN-SEA
$109
9/26Thu
1 stopUnited Airlines
6h 33mSEA-DEN
9/30Mon
nonstopUnited Airlines
3h 00mDEN-SEA
$114
10/17Thu
nonstopAlaska Airlines
2h 38mSEA-DEN
10/22Tue
nonstopAlaska Airlines
3h 06mDEN-SEA
$117
9/26Thu
1 stopUnited Airlines
6h 33mSEA-DEN
9/29Sun
nonstopUnited Airlines
3h 00mDEN-SEA
$135
8/11Sun
nonstopAlaska Airlines
2h 44mSEA-DEN
8/14Wed
nonstopAlaska Airlines
2h 59mDEN-SEA
$167

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Recent one-way flight deals

8/24Sat
nonstopFrontier
2h 43mSEA-DEN
$28
9/14Sat
nonstopFrontier
2h 43mSEA-DEN
$30
8/6Tue
nonstopDelta
2h 33mSEA-DEN
$55
8/10Sat
nonstopAlaska Airlines
2h 40mSEA-DEN
$59
9/5Thu
nonstopUnited Airlines
2h 41mSEA-DEN
$85
7/6Sat
nonstopAlaska Airlines
2h 44mSEA-DEN
$94
8/15Thu
1 stopUnited Airlines
7h 24mSEA-DEN
$98
11/27Wed
nonstopDelta
2h 38mSEA-DEN
$119
9/5Thu
1 stopAmerican Airlines
9h 05mSEA-DEN
$128
9/6Fri
1 stopAmerican Airlines
11h 33mSEA-DEN
$148

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Last minute flights from Seattle to Fort Collins

Last minute flight, train and bus deals

6/12Wed
nonstopFrontier
2h 51mSEA-DEN
7/24Wed
nonstopFrontier
2h 59mDEN-SEA
$123
6/16Sun
multi-stopFrontier
27h 57mSEA-DEN
6/20Thu
nonstopFrontier
3h 06mDEN-SEA
$132
6/12Wed
nonstopFrontier
2h 53mSEA-DEN
6/18Tue
nonstopFrontier
3h 03mDEN-SEA
$150
6/16Sun
multi-stopFrontier
9h 07mSEA-DEN
6/25Tue
nonstopFrontier
3h 03mDEN-SEA
$154
6/16Sun
multi-stopFrontier
27h 57mSEA-DEN
6/21Fri
multi-stopFrontier
17h 16mDEN-SEA
$157
6/14Fri
nonstopAlaska Airlines
2h 40mSEA-DEN
6/14Fri
nonstopAlaska Airlines
2h 59mDEN-SEA
$301
6/14Fri
multi-stopAmerican Airlines
8h 35mSEA-DEN
6/16Sun
multi-stopAmerican Airlines
6h 07mDEN-SEA
$326
6/15Sat
nonstopDelta
2h 50mSEA-DEN
6/15Sat
multi-stopDelta
4h 42mDEN-SEA
$327
6/12Wed
multi-stopUnited Airlines
7h 29mSEA-DEN
6/14Fri
nonstopUnited Airlines
2h 55mDEN-SEA
$337
6/12Wed
multi-stopAmerican Airlines
8h 35mSEA-DEN
6/14Fri
multi-stopAmerican Airlines
6h 07mDEN-SEA
$376

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Flights to Fort Collins