Fort Collins

$126+ Cheap flights from San Francisco (SFO) 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
Jul 13 — Jul 201
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Cheapflights Tip: The best prices from San Francisco to Fort Collins are usually found in October or September, booked 71 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from San Francisco to Fort Collins

Cheapest flights from San Francisco to Fort Collins
Explore the most affordable flight options available from San Francisco to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Thu 7/309:39 pm
SFO
-
DEN
Nonstop2h 50m
Frontier
Tue 8/410:00 am
DEN
-
SFO
1 stop6h 25m
Frontier
Deal found 6/10$217
This Frontier deal was found by Cheapflights users on 6/10. 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.
Sun 8/306:00 am
SFO
-
DEN
Nonstop2h 44m
Frontier
Thu 9/103:09 pm
DEN
-
SFO
Nonstop2h 48m
Frontier
Deal found 6/10$218
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Wed 7/296:00 am
SFO
-
DEN
Nonstop2h 46m
Frontier
Tue 8/410:29 pm
DEN
-
SFO
Nonstop2h 54m
Frontier
Deal found 6/10$219
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:39 pm
SFO
-
DEN
Nonstop2h 50m
Frontier
Wed 7/299:33 am
DEN
-
SFO
Nonstop2h 54m
Frontier
Deal found 6/11$220
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Wed 7/296:00 am
SFO
-
DEN
Nonstop2h 46m
Frontier
Sat 8/110:29 pm
DEN
-
SFO
Nonstop2h 54m
Frontier
Deal found 6/10$221
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:30 pm
SFO
-
DEN
1 stop5h 20m
Frontier
Fri 8/1410:29 pm
DEN
-
SFO
Nonstop2h 49m
Frontier
Deal found 6/11$222
This Frontier deal was found by Cheapflights users on 6/10. 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.
Fri 10/232:07 pm
SFO
-
DEN
Nonstop2h 40m
Frontier
Tue 10/278:30 am
DEN
-
SFO
1 stop7h 20m
Frontier
Deal found 6/10$223
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:22 pm
SFO
-
DEN
Nonstop2h 48m
Frontier
Sat 7/1110:29 pm
DEN
-
SFO
Nonstop2h 54m
Frontier
Deal found 6/11$225
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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.
Sat 7/116:00 am
SFO
-
DEN
Nonstop2h 46m
Frontier
Sat 7/116:58 pm
DEN
-
SFO
Nonstop2h 56m
Frontier
Deal found 6/9$226
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:17 pm
SFO
-
DEN
Nonstop2h 42m
Frontier
Mon 9/219:47 am
DEN
-
SFO
Nonstop2h 49m
Frontier
Deal found 6/10$227
This Frontier deal was found by Cheapflights users on 6/10. 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.
Sat 7/189:39 pm
SFO
-
DEN
Nonstop2h 50m
Frontier
Thu 7/3010:29 pm
DEN
-
SFO
Nonstop2h 54m
Frontier
Deal found 6/10$228

Find flight deals from San Francisco to Fort Collins

Keep the following information in mind while searching for San Francisco to Fort Collins flight deals. Data was last updated June 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Cheapflightsfares)

One-way from

$126
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$347
Provider with most accurate pricing for San Francisco-Denver Intl flight deals.
Provider most trusted by Cheapflights users for San Francisco-Denver Intl flights.
From San Francisco to Fort Collins
One-way flight from San Francisco to Fort Collins
Highest demand for flights based on searches. 13% potential increase in price ($43 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 June 13, 2026.
Use the filters below to find and compare flights from San Francisco to Fort Collins that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 9/15

1:35 pm-9:20 pm

2 stops6h 45m

Denver Intl

Thu 9/17

3:10 pm-8:30 pm

2 stops6h 20m

$270

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 9/1

4:55 pm-11:58 pm

1 stop6h 03m

Denver Intl

Fri 9/11

12:59 pm-5:50 pm

1 stop5h 51m

$283

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 9/14

5:50 am-12:05 pm

1 stop5h 15m

Denver Intl

Mon 9/14

7:25 pm-8:24 am

1 stop13h 59m

$321
Quickest round-trip

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 9/5

2:20 pm-6:09 pm

Nonstop2h 49m

Denver Intl

Mon 9/7

5:00 am-6:41 am

Nonstop2h 41m

$333

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 8/5

11:15 am-5:05 pm

1 stop4h 50m

Denver Intl

Fri 8/7

9:10 pm-10:50 pm

Nonstop2h 40m

$334

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 8/29

2:05 pm-8:55 pm

1 stop5h 50m

Denver Intl

Sat 9/5

9:20 am-5:45 pm

2 stops9h 25m

$338

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 7/17

2:15 pm-7:40 pm

1 stop4h 25m

Denver Intl

Tue 7/21

8:15 am-2:15 pm

2 stops7h 00m

$359

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 8/21

6:45 am-1:30 pm

1 stop5h 45m

Denver Intl

Mon 8/24

3:10 pm-8:30 pm

2 stops6h 20m

$361

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 9/23

1:35 pm-9:20 pm

2 stops6h 45m

Denver Intl

Sun 9/27

5:25 pm-10:50 pm

2 stops6h 25m

$363

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 8/25

4:55 pm-11:58 pm

1 stop6h 03m

Denver Intl

Thu 8/27

12:54 pm-11:50 pm

2 stops11h 56m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Fort Collins

Have a flexible travel schedule? Discover the best time to fly to Fort Collins from San Francisco 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 San Francisco to Fort Collins

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

Find hourly flight availability from San Francisco 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 June 13, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 27% on flights from San Francisco to Fort Collins by exploring options for tickets in the evening.

Weekly flight availability from San Francisco to Fort Collins

Explore weekly flight availability from San Francisco 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 June 13, 2026.

The most flights from SFO to FC9 are scheduled on a Friday (58 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (37 on average).

How much does it cost to fly round-trip from San Francisco to Fort Collins?

What is the cheapest day to fly from San Francisco to Fort Collins?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Fort Collins. Price data was last updated on June 13, 2026.

Travelers seeking maximum savings on their San Francisco to Fort Collins flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 June 13, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from San Francisco to Fort Collins have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Overall

7.9

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Fort Collins?

    For a flight from San Francisco to Fort Collins, you will be flying from San Francisco. San Francisco (SFO) is just 11.0 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 48 outbound flights to Fort Collins per day. 5 airlines have flights to Fort Collins from San Francisco on a regular basis.

  • How popular is this San Francisco to Fort Collins flight route?

  • How long is the flight from San Francisco to Fort Collins?

    For as low as $333, Southwest can have you in Fort Collins from San Francisco in 2h 49m. San Francisco and Fort Collins are separated by a distance of 964 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $42 on Allegiant Air. Other airlines that offer cheap prices include Frontier from $44 and Southwest from $78 one-way.

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

    No one likes to see their flight delayed. When booking a flight from San Francisco to Fort Collins consider choosing SWISS (100%), Asiana Airlines (93%) or United Airlines (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to Fort Collins?

    On average you can expect to pay $963 for a flight from San Francisco to Fort Collins. The cheapest flight overall is $124 while the most popular route, (San Francisco - Denver Intl) is currently priced at $113.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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.

See more FAQs

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Alternative routes for San Francisco to Fort Collins

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from San Francisco to Fort Collins

Discover the top 5 airlines that operate flights from San Francisco 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 June 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$226FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$157Average$319FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$183Average$374FlexibilityNo cancel feeOn-time69%
DeltaCheapest$223Average$326FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$226Average$342FlexibilityNo cancel feeOn-time62%

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