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Find cheap flights from Seattle to Fort Collins from $44

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 7/19. 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
Fri 6/14
Fri 6/21

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Good to know

Low season

January

High season

July

Cheapest flight

$44
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 38% 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?

    75 direct flights run between Seattle and Fort Collins on a daily basis. On average, there are about 531 departures each week.

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

    Consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

  • 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 $44. Frontier offered a round-trip connection from $76 and Sun Country Air from $173.

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 May, June and July. 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 9157 reviews
8.6Crew
8.2Boarding
7.9Comfort
7.3Entertainment
7.3Food
Airline reviews

Alway a a breeze! And great mountain views on left side of plane during entire flight!

10.0 ExcellentAimee, May 2024SEA - MFR
Read more about Alaska Airlines reviews

Alway a a breeze! And great mountain views on left side of plane during entire flight!

another delayed flight. no one at the desk kept us updated. we found out by an email as the desk was not even staffed up to expected takes off

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

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.

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

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.

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!

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in-flight WiFi. Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay that much for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a shitty attitude for no reason, nor will they act the way this woman did. Unacceptable.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

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.

Because I can’t stand very long in one place, I was allowed to reword.

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

Terrible. Initially we were shocked by the outrageous baggage fees we needed to pay at check in for our so-called "discounted, economy flight" - we paid over $200 (!!) for one check-in and 2 carry-on bags - this felt like a real bait-and-switch" scam. Our flight from Phoenix to SFO was delayed by 4 hours. Multiple apparent causes (from needing to make space for other planes that were landing late to problem with cabins pressure system, and whatever...). After de-boarding and re-boarding we still waited at least an hour on a cramped, poorly ventilated plane before take-off. Seats were cramped, uncomfortable - did not recline at all. No water until we were flying for a while. No complimentary snacks. Upon arrival at SFO my luggage was sent upstairs to the check-in counter. The customer service person there refused to let me examine a bunch of bags that were sitting on a nearby cart because it was "behind the counter", rather made me wait until another attendant did an exhaustive and failed (?computer) search, came back and told me they were unable to locate my bag. I asked her to look on the cart, lo and behold, there was my bag just a few feet away! Missed my choir rehearsal that evening due to all of the delays. One more thing, a few days later my husband and I tested positive for Covid. Since we both are fully vaccinated, careful about masking and have never had Covid previously, we will never know, but suspect we may have acquired the infection during the prolonged wait on your poorly ventilated plane (person in the row in front of us was coughing). After registering a complaint, we received a measly $50 voucher for future flights. Needless to say we have no intention of flying with Frontier Airlines ever again.

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

It’s a cheap airline. I wish they had better seats.

The only issues had were outside of Frontier’s control or weren’t expected. It was a two hour flight they completed fast. We landed almost an hour ahead of schedule. The issues with no entertainment or food weren’t issues since there was no expectations. The issue of the loud or crying babies was outside of frontiers control.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Book cheap flights from Seattle to Fort Collins

Recent round-trip flight deals

6/2Sun
nonstopFrontier
2h 52mSEA-DEN
6/5Wed
nonstopFrontier
3h 00mDEN-SEA
$76
6/1Sat
nonstopFrontier
2h 53mSEA-DEN
6/14Fri
nonstopFrontier
3h 00mDEN-SEA
$77
6/3Mon
nonstopFrontier
3h 01mSEA-DEN
6/7Fri
nonstopFrontier
3h 00mDEN-SEA
$78
6/3Mon
nonstopFrontier
3h 01mSEA-DEN
6/11Tue
nonstopFrontier
3h 03mDEN-SEA
$80
6/11Tue
nonstopFrontier
2h 59mSEA-DEN
6/12Wed
nonstopFrontier
3h 00mDEN-SEA
$81
5/26Sun
nonstop
2h 55mSEA-DEN
6/2Sun
1 stop
7h 40mDEN-SEA
$109
6/5Wed
nonstop
2h 51mSEA-DEN
6/6Thu
1 stop
13h 43mDEN-SEA
$111
5/31Fri
1 stopSun Country Air
15h 56mSEA-DEN
6/6Thu
1 stopSun Country Air
13h 43mDEN-SEA
$173
6/1Sat
1 stopSun Country Air
6h 45mSEA-DEN
6/11Tue
1 stopSun Country Air
7h 00mDEN-SEA
$176
7/3Wed
nonstopDelta
2h 50mSEA-DEN
7/24Wed
nonstopDelta
3h 01mDEN-SEA
$177

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Recent one-way flight deals

7/19Fri
nonstopFrontier
2h 43mSEA-DEN
$44
6/8Sat
nonstopFrontier
2h 56mSEA-DEN
$46
6/12Wed
nonstopAlaska Airlines
2h 47mSEA-DEN
$75
7/3Wed
nonstopDelta
2h 50mSEA-DEN
$89
6/28Fri
nonstopDelta
2h 44mSEA-DEN
$109
6/19Wed
nonstopAlaska Airlines
2h 40mSEA-DEN
$144
5/31Fri
1 stopUnited Airlines
7h 29mSEA-DEN
$150
5/18Sat
1 stopUnited Airlines
6h 36mSEA-DEN
$159
7/1Mon
1 stopAmerican Airlines
10h 38mSEA-DEN
$218
6/17Mon
1 stopAmerican Airlines
11h 41mSEA-DEN
$238

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Last minute flights from Seattle to Fort Collins

Last minute flight, train and bus deals

5/20Mon
nonstopFrontier
3h 01mSEA-DEN
5/23Thu
nonstopFrontier
3h 05mDEN-SEA
$161
5/18Sat
nonstopFrontier
2h 53mSEA-DEN
5/19Sun
nonstopFrontier
3h 03mDEN-SEA
$173
5/16Thu
nonstopAlaska Airlines
2h 43mSEA-DEN
5/19Sun
multi-stopAlaska Airlines
5h 17mDEN-SEA
$316
5/17Fri
nonstopAlaska Airlines
2h 43mSEA-DEN
5/19Sun
multi-stopAlaska Airlines
5h 17mDEN-SEA
$317
5/16Thu
multi-stopDelta
5h 27mSEA-DEN
5/19Sun
nonstopDelta
3h 03mDEN-SEA
$321
5/16Thu
multi-stopUnited Airlines
6h 26mSEA-DEN
5/18Sat
multi-stopUnited Airlines
8h 28mDEN-SEA
$322
5/17Fri
multi-stopDelta
5h 05mSEA-DEN
5/19Sun
multi-stopDelta
4h 25mDEN-SEA
$336
5/18Sat
multi-stopUnited Airlines
6h 36mSEA-DEN
5/22Wed
multi-stopUnited Airlines
24h 25mDEN-SEA
$482
5/20Mon
multi-stopAmerican Airlines
13h 47mSEA-DEN
5/28Tue
multi-stopAmerican Airlines
9h 09mDEN-SEA
$650
5/20Mon
multi-stopAmerican Airlines
11h 42mSEA-DEN
5/24Fri
multi-stopAmerican Airlines
6h 22mDEN-SEA
$720

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Flights to Fort Collins