
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $92 (Kiwi.com) |
One-way from | $64 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $275 |
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Tue 1/20
4:46 pm-11:35 pm
1 stop5h 49m
Denver Intl
Tue 2/3
12:34 pm-5:48 pm
1 stop6h 14m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Tue 1/20
7:00 am-11:58 pm
1 stop15h 58m
Denver Intl
Sat 1/31
5:09 pm-11:03 pm
1 stop6h 54m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Fri 1/9
2:52 pm-11:58 pm
1 stop8h 06m
Denver Intl
Tue 1/13
12:34 pm-4:32 pm
1 stop4h 58m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sat 1/17
5:10 am-8:40 am
Nonstop2h 30m
Denver Intl
Sun 1/18
8:35 am-10:30 am
Nonstop2h 55m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Fri 1/23
7:00 am-11:35 pm
1 stop15h 35m
Denver Intl
Wed 1/28
7:00 am-2:00 pm
1 stop8h 00m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Thu 1/8
2:39 pm-11:25 pm
1 stop7h 46m
Denver Intl
Mon 1/12
12:49 pm-11:28 pm
2 stops11h 39m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Wed 1/28
10:30 am-7:29 pm
2 stops7h 59m
Denver Intl
Mon 2/2
6:29 am-1:43 pm
1 stop8h 14m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Fri 1/30
4:40 pm-11:25 pm
1 stop5h 45m
Denver Intl
Mon 2/2
5:15 am-1:43 pm
2 stops9h 28m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sat 2/21
10:25 am-9:06 pm
2 stops9h 41m
Denver Intl
Fri 2/27
6:40 am-1:48 pm
1 stop8h 08m
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Wed 1/28
10:30 am-7:29 pm
2 stops7h 59m
Denver Intl
Sat 1/31
6:29 am-1:43 pm
1 stop8h 14m
Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Fort Collins. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, February is the cheapest month in which you can book a flight from San Francisco to Fort Collins (average of $28). Flying from San Francisco to Fort Collins in June is currently the most expensive (average of $106). 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.
Unlike at noon, when flights are generally more expensive, you can save up to 6% on flights from San Francisco to Fort Collins by exploring options for tickets in the evening.
Travelers seeking maximum savings on their San Francisco to Fort Collins flight should consider departing on Friday mornings 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.
The most flights from SFO to FC9 are scheduled on a Thursday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$187 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$100 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$157 | Average$277 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$163 | Average$380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$176 | Average$428 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$216 | Average$276 | FlexibilityNo cancel fee | On-timeN/A |