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Fort Collins

$79+ Cheap flights from Seattle (SEA) to Fort Collins, CO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Fort Collins are usually found in September or October, booked 86 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap flight deals from Seattle to Fort Collins

Keep the following information in mind while searching for Seattle to Fort Collins flight deals. Data was last updated marzo 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$107
(Cheapflightsfares)

One-way from

$79
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$207
Provider with most accurate pricing for Seattle/Tacoma Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Denver Intl flights.
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From Seattle/Tacoma Intl to Fort Collins
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One-way flight from Seattle/Tacoma Intl to Fort Collins
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Highest demand for flights based on searches. 7% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Fort Collins

Cheapest flights from Seattle to Fort Collins
Explore the most affordable flight options available from Seattle to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/2512:30 pmSEA - DEN
Nonstop2h 56mFrontier
sáb. 4/2610:37 pmDEN - SEA
Nonstop3h 07mFrontier
Deal found 3/27$107
This Orbitz deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/295:30 amSEA - DEN
1 stop4h 51mMultiple Airlines
sáb. 5/310:36 pmDEN - SEA
Nonstop3h 08mMultiple Airlines
Deal found 3/27$143
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/63:15 pmSEA - DEN
Nonstop2h 44mDelta
mar. 5/136:45 pmDEN - SEA
Nonstop2h 58mDelta
Deal found 3/28$157
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/107:00 amSEA - DEN
1 stop6h 59mUnited Airlines
mar. 5/137:00 pmDEN - SEA
Nonstop3h 02mUnited Airlines
Deal found 3/26$163
This Alaska Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/31:58 pmSEA - DEN
Nonstop2h 40mAlaska Airlines
mié. 5/146:37 pmDEN - SEA
1 stop5h 54mAlaska Airlines
Deal found 3/28$167
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/306:15 amSEA - DEN
2 stops8h 20mSouthwest
lun. 5/59:40 pmDEN - SEA
Nonstop2h 55mSouthwest
Deal found 3/27$192
This Hawaiian Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/166:39 amSEA - DEN
1 stop6h 14mHawaiian Airlines
mar. 4/228:20 amDEN - SEA
1 stop5h 09mHawaiian Airlines
Deal found 3/28$256

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Fort Collins that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 28, 2025.
Use the filters below to find and compare flights from Seattle to Fort Collins that are best for you.

Fly from

Seattle

Fly to

Fort Collins

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

vie. 4/25

12:30 pm-4:26 pm

Nonstop2h 56m

Denver Intl

sáb. 4/26

10:37 pm-12:44 am

Nonstop3h 07m

$107

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mar. 4/29

5:30 am-11:21 am

1 stop4h 51m

Denver Intl

sáb. 5/3

10:36 pm-12:44 am

Nonstop3h 08m

$143

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mar. 5/6

3:15 pm-6:59 pm

Nonstop2h 44m

Denver Intl

mar. 5/13

6:45 pm-8:43 pm

Nonstop2h 58m

$157

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

sáb. 5/10

7:00 am-2:59 pm

1 stop6h 59m

Denver Intl

mar. 5/13

7:00 pm-9:02 pm

Nonstop3h 02m

$163

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

sáb. 5/3

1:58 pm-5:38 pm

Nonstop2h 40m

Denver Intl

mié. 5/14

6:37 pm-11:31 pm

1 stop5h 54m

$167

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mié. 4/30

6:15 am-3:35 pm

2 stops8h 20m

Denver Intl

lun. 5/5

9:40 pm-11:35 pm

Nonstop2h 55m

$192

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mié. 4/16

6:39 am-1:53 pm

1 stop6h 14m

Denver Intl

mar. 4/22

8:20 am-12:29 pm

1 stop5h 09m

$256

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

vie. 7/11

11:59 pm-9:25 am

1 stop8h 26m

Denver Intl

lun. 7/14

10:14 am-10:50 pm

1 stop13h 36m

$285

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mié. 5/21

5:15 am-8:58 am

Nonstop2h 43m

$79

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

lun. 4/21

1:56 pm-5:46 pm

Nonstop2h 50m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 17 results
1
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Best time to book a flight from Seattle to Fort Collins

Have a flexible travel schedule? Discover the best time to fly to Fort Collins from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Fort Collins

How far ahead should I book a flight from Seattle to Fort Collins?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Fort Collins. Price data was last updated on March 21, 2025.

The best time to book flights from Seattle to Fort Collins is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Fort Collins?

Currently, October is the cheapest month in which you can book a flight from Seattle to Fort Collins (average of $197). Flying from Seattle to Fort Collins in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to FC9?

Find hourly flight availability from Seattle to Fort Collins. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Fort Collins as you normally would.

What is the cheapest day to fly from Seattle to Fort Collins?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Fort Collins. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Fort Collins flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Fort Collins

Explore weekly flight availability from Seattle to Fort Collins. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated marzo 28, 2025.

The most flights from SEA to FC9 are scheduled on a Thursday (42 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Fort Collins by month

Plan your trip to Fort Collins by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Fort Collins ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Fort Collins when rainfall is around 0.5 in.

Temperature in Fort Collins by month

Plan your trip to Fort Collins by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Fort Collins, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Fort Collins

Get insights into the airlines that provide service to Fort Collins. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Fort Collins. Reviews last updated marzo 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to Fort Collins have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Overall

8.1

Comfort

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Fort Collins. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Fort Collins?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Fort Collins. On average, Seattle/Tacoma Intl has 23 outbound flights to Fort Collins per day from 6 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How popular is this Seattle to Fort Collins flight route?

    Within the past month, 302 users have taken a look at flights from Seattle/Tacoma Intl to Fort Collins.

  • What are the cheapest airlines to fly from Seattle to Fort Collins one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $79. Users have also found prices from $88 and $94 on Frontier and Southwest, respectively.

  • What are the most reliable airlines from Seattle to Fort Collins?

    The top 3 most reliable airlines when flying from Seattle to Fort Collins are China Airlines (100%), Aeromexico (100%) and LATAM Airlines (100%).

  • What are the cheapest flights from Seattle to Fort Collins?

    The cheapest flight price from Seattle to Fort Collins is $77. On average you can expect to pay $866. The most popular route, (Seattle/Tacoma Intl - Denver Intl), can usually be booked for $125.

  • Can I find deals for flights from Seattle to Fort Collins that include hotel bookings?

    Yes. In addition to deals on Seattle to Fort Collins flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Fort Collins?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Fort Collins.

  • Can I find deals for business class flights from Seattle to Fort Collins?

    Yes. Cheapflights offers flight deals from Seattle to Fort Collins by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Fort Collins?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Fort Collins (average of $197). Flying from Seattle to Fort Collins in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 6 airlines flying from Seattle to Fort Collins

Discover the top 6 airlines that operate flights from Seattle to Fort Collins. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$140FlexibilityNo cancel feeOn-time62%
DeltaCheapest$93Average$243FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$98Average$221FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$118Average$229FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$139Average$280FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$148Average$377FlexibilityNo cancel feeOn-time69%
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