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Fort Collins

$69+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
jan. 26 — feb. 21
zo 1/26
zo 2/2
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Fort Collins are usually found in March or April, booked 69 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Seattle to Fort Collins

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Fort Collins (FC9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated januari 21, 2025.

Round-trip from

$98
(Frontier)

One-way from

$69
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$186
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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High demand for flights, 13% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 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 januari 21, 2025.

This Frontier deal was found by Cheapflights users on 1/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 2/23:18 pmSEA - DEN
Nonstop2h 47mFrontier
ma 2/1012:20 pmDEN - SEA
Nonstop3h 05mFrontier
Deal found 1/19$98
This Delta deal was found by Cheapflights users on 1/20. 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.
di 2/117:55 pmSEA - DEN
Nonstop2h 47mDelta
do 2/136:25 amDEN - SEA
Nonstop3h 14mDelta
Deal found 1/20$117
This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 3/198:20 pmSEA - DEN
Nonstop2h 38mMultiple Airlines
ma 3/2410:44 pmDEN - SEA
1 stop11h 46mMultiple Airlines
Deal found 1/20$154
This United Airlines deal was found by Cheapflights users on 1/21. 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.
wo 2/193:04 pmSEA - DEN
1 stop6h 24mUnited Airlines
wo 2/266:00 amDEN - SEA
1 stop6h 12mUnited Airlines
Deal found 1/21$188
This Southwest deal was found by Cheapflights users on 1/20. 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.
wo 3/512:25 pmSEA - DEN
2 stops7h 20mSouthwest
ma 3/1010:50 pmDEN - SEA
Nonstop3h 00mSouthwest
Deal found 1/20$198
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
wo 4/93:22 pmSEA - DEN
Nonstop2h 39mAlaska Airlines
di 4/152:53 pmDEN - SEA
1 stop6h 42mAlaska Airlines
Deal found 1/21$237

Find flights from Seattle to Fort Collins within your budget

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 januari 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

zo 2/2

3:18 pm-7:05 pm

Nonstop2h 47m

Denver Intl

ma 2/10

12:20 pm-2:25 pm

Nonstop3h 05m

$98

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

di 2/11

7:55 pm-11:42 pm

Nonstop2h 47m

Denver Intl

ma 2/17

6:25 am-8:39 am

Nonstop3h 14m

$117

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

wo 3/19

8:20 pm-11:58 pm

Nonstop2h 38m

Denver Intl

ma 3/24

10:44 pm-9:30 am

1 stop11h 46m

$154

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

wo 2/12

6:00 pm-9:44 pm

Nonstop2h 44m

Denver Intl

wo 2/19

6:00 am-11:12 am

1 stop6h 12m

$183

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

wo 3/5

12:25 pm-8:45 pm

2 stops7h 20m

Denver Intl

ma 3/10

10:50 pm-12:50 am

Nonstop3h 00m

$198

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

wo 4/9

3:22 pm-7:01 pm

Nonstop2h 39m

Denver Intl

di 4/15

2:53 pm-8:35 pm

1 stop6h 42m

$237

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

zo 4/27

6:00 am-9:46 am

Nonstop2h 46m

$69

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

di 4/15

1:01 pm-4:40 pm

Nonstop2h 39m

$89

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

zo 2/23

7:55 pm-11:42 pm

Nonstop2h 47m

$99

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

zo 5/25

7:00 am-3:00 pm

1 stop7h 00m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 14 results
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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.

Travel insights for flights from Seattle to Fort Collins

Get recent, data-driven insights about flights from Seattle to Fort Collins including ideal travel times, pricing trends, and more.

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 January 17, 2025.

The best time to book flights from Seattle to Fort Collins is 69 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 januari 21, 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 Tuesday evenings when fares are most often at their lowest. Thursday at noon 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 januari 21, 2025.

The most flights from SEA to FC9 are scheduled on a Monday (34 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 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 januari 21, 2025.
See what other customers who have flown with Frontier, Delta and Southwest 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
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 22 outbound flights to Fort Collins per day from 5 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, 309 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 Frontier. According to our data, you can fly for as low as $69. Users have also found prices from $80 and $89 on American Airlines and Delta, 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 United Airlines (94%), Japan Airlines (93%) and Copa Airlines (91%).

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

    The cheapest flight price from Seattle to Fort Collins is $78. On average you can expect to pay $725. The most popular route, (Seattle/Tacoma Intl - Denver Intl), can usually be booked for $75.

  • 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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Alternative routes for Seattle to Fort Collins

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Top 5 airlines flying from Seattle to Fort Collins

Discover the top 5 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 januari 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$130FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$236FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$118Average$204FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$123Average$277FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$128Average$375FlexibilityNo cancel feeOn-time69%
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