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Cheap flights San Francisco to Denver

1 passenger, economy

Cheap flights San Francisco to Denver

Compare prices, duration and stops

Frontier Airlines
F9 3308
16:00
San Francisco (SFO)
Wed, 16 sep
7h 32min
1 stop
23:32
Denver (DEN)
Wed, 16 sep
81 S$
Frontier Airlines
F9 3436 Best price
18:42
San Francisco (SFO)
Wed, 16 sep
2h 48min
Direct
21:30
Denver (DEN)
Wed, 16 sep
59 S$
Frontier Airlines
F9 1230
13:04
San Francisco (SFO)
Thu, 17 sep
2h 42min
Direct
15:46
Denver (DEN)
Thu, 17 sep
72 S$
Frontier Airlines
F9 4310
16:42
San Francisco (SFO)
Thu, 17 sep
2h 47min
Direct
19:29
Denver (DEN)
Thu, 17 sep
76 S$
Frontier Airlines
F9 2858 🔥 Hot deal
19:07
San Francisco (SFO)
Thu, 17 sep
28h 52min
1 stop
23:59
Denver (DEN)
Fri, 18 sep +1
117 S$
Frontier Airlines
F9 2678
01:02
San Francisco (SFO)
Sat, 19 sep
20h 5min
1 stop
21:07
Denver (DEN)
Sat, 19 sep
94 S$
Frontier Airlines
F9 1230
13:04
San Francisco (SFO)
Sat, 19 sep
2h 42min
Direct
15:46
Denver (DEN)
Sat, 19 sep
67 S$
Frontier Airlines
F9 2930
06:58
San Francisco (SFO)
Sun, 20 sep
7h 17min
1 stop
14:15
Denver (DEN)
Sun, 20 sep
169 S$
Frontier Airlines
F9 2638
20:10
San Francisco (SFO)
Sun, 20 sep
9h 38min
1 stop
05:48
Denver (DEN)
Mon, 21 sep +1
176 S$
Frontier Airlines
F9 3382
23:31
San Francisco (SFO)
Sun, 20 sep
16h 28min
1 stop
15:59
Denver (DEN)
Mon, 21 sep +1
147 S$
Frontier Airlines
F9 3440
23:34
San Francisco (SFO)
Mon, 21 sep
2h 46min
Direct
02:20
Denver (DEN)
Tue, 22 sep +1
82 S$
Frontier Airlines
F9 2930
06:58
San Francisco (SFO)
Tue, 22 sep
7h 17min
1 stop
14:15
Denver (DEN)
Tue, 22 sep
170 S$
Frontier Airlines
F9 1230
13:04
San Francisco (SFO)
Tue, 22 sep
2h 42min
Direct
15:46
Denver (DEN)
Tue, 22 sep
77 S$
Frontier Airlines
F9 4158
18:17
San Francisco (SFO)
Tue, 22 sep
11h 27min
1 stop
05:44
Denver (DEN)
Wed, 23 sep +1
95 S$
Frontier Airlines
F9 3308
16:00
San Francisco (SFO)
Wed, 23 sep
29h 5min
1 stop
21:05
Denver (DEN)
Thu, 24 sep +1
80 S$
Frontier Airlines
F9 1230
13:04
San Francisco (SFO)
Thu, 24 sep
2h 42min
Direct
15:46
Denver (DEN)
Thu, 24 sep
84 S$
Frontier Airlines
F9 2858
19:07
San Francisco (SFO)
Thu, 24 sep
4h 52min
1 stop
23:59
Denver (DEN)
Thu, 24 sep
177 S$
Frontier Airlines
F9 3440
23:34
San Francisco (SFO)
Fri, 25 sep
2h 46min
Direct
02:20
Denver (DEN)
Sat, 26 sep +1
111 S$
Frontier Airlines
F9 3436
18:42
San Francisco (SFO)
Sat, 26 sep
2h 48min
Direct
21:30
Denver (DEN)
Sat, 26 sep
86 S$
Frontier Airlines
F9 3382
23:31
San Francisco (SFO)
Sun, 27 sep
16h 28min
1 stop
15:59
Denver (DEN)
Mon, 28 sep +1
163 S$
Frontier Airlines
F9 2930
06:58
San Francisco (SFO)
Tue, 29 sep
7h 17min
1 stop
14:15
Denver (DEN)
Tue, 29 sep
204 S$
Frontier Airlines
F9 1230
13:04
San Francisco (SFO)
Wed, 30 sep
2h 42min
Direct
15:46
Denver (DEN)
Wed, 30 sep
65 S$
Frontier Airlines
F9 3436
18:42
San Francisco (SFO)
Wed, 30 sep
2h 48min
Direct
21:30
Denver (DEN)
Wed, 30 sep
85 S$
Frontier Airlines
F9 3382
23:31
San Francisco (SFO)
Wed, 30 sep
16h 28min
1 stop
15:59
Denver (DEN)
Thu, 1 oct +1
155 S$
Frontier Airlines
F9 4402
05:24
San Francisco (SFO)
Fri, 2 oct
20h 57min
2 stops
02:21
Denver (DEN)
Sat, 3 oct +1
150 S$

Low price calendar

September 2026
Price chart (September 2026)
min: 67 S$ · max: 204 S$
01.09.2026 — no data 02.09.2026 — no data 03.09.2026 — no data 04.09.2026 — no data 05.09.2026 — no data 06.09.2026 — no data 07.09.2026 — no data 08.09.2026 — no data 09.09.2026 — no data 10.09.2026 — no data 11.09.2026 — no data 12.09.2026 — no data 13.09.2026 — no data 14.09.2026 — no data 15.09.2026 — no data 16.09.2026 — 81 S$ 17.09.2026 — 117 S$ 18.09.2026 — no data 19.09.2026 — 67 S$ 20.09.2026 — 169 S$ 21.09.2026 — 82 S$ 22.09.2026 — 95 S$ 23.09.2026 — 80 S$ 24.09.2026 — 177 S$ 25.09.2026 — 111 S$ 26.09.2026 — 86 S$ 27.09.2026 — 163 S$ 28.09.2026 — no data 29.09.2026 — 204 S$ 30.09.2026 — 155 S$ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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Wed
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Sat
Sun
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15
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16
Good deal
81 S$
17
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117 S$
18
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no data
19
Good deal
67 S$
20
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169 S$
21
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82 S$
22
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95 S$
23
Good deal
80 S$
24
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177 S$
25
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111 S$
26
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86 S$
27
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163 S$
28
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29
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204 S$
30
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155 S$

Cheap flights San Francisco to Denver

Frontier Airlines
Frontier Airlines
Mon, Tue, Wed, Thu, Fri, Sat, Sun
Price from
S$95

Popular destinations from San Francisco

All →
SFO
San Francisco — Los Angeles
United States → United States
LAX
from
S$23
SFO
San Francisco — San Diego
United States → United States
SAN
from
S$23
SFO
San Francisco — Ontario
United States → United States
ONT
from
S$27
SFO
San Francisco — Las Vegas
United States → United States
LAS
from
S$27
SFO
San Francisco — Los Angeles
United States → United States
SNA
from
S$56
SFO
San Francisco — Seattle
United States → United States
SEA
from
S$58
SFO
San Francisco — Phoenix
United States → United States
PHX
from
S$59
SFO
San Francisco — Portland
United States → United States
PDX
from
S$70

Popular destinations to Denver

All →
PHX
Phoenix — Denver
United States → United States
DEN
from
S$29
CHI
Chicago — Denver
United States → United States
DEN
from
S$31
SEA
Seattle — Denver
United States → United States
DEN
from
S$31
SLC
Salt Lake City — Denver
United States → United States
DEN
from
S$33
ATL
Atlanta — Denver
United States → United States
DEN
from
S$33
DFW
Dallas — Denver
United States → United States
DEN
from
S$33
AUS
Austin — Denver
United States → United States
DEN
from
S$33
LAX
Los Angeles — Denver
United States → United States
DEN
from
S$34
MSP
Minneapolis — Denver
United States → United States
DEN
from
S$38

Cheap flights San Francisco to Denver

Interesting facts about the route

Flight time

6h 4min

Distance

1 554 km

Average price

S$90

Most frequent flight

F9 1230

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · United States

All plans

change

3 GB

data

30

days

S$11

Buy

change

2 GB

data

15

days

S$16

Buy

change

5 GB

data

30

days

S$18

Buy

change

3 GB

data

30

days

S$20

Buy

change

5 GB

data

30

days

S$29

Buy

Frequently Asked Questions

The average ticket price San Francisco Denver is S$90. The cheapest ticket costs S$59, operated by Frontier Airlines, flight 3436, departing San Francisco on 16 September at 18:42, arriving Denver on 16 September at 21:30.
The average flight time is 2 hours 48 minutes. The fastest flight takes 2 hours 42 minutes, flight 1230 operated by Frontier Airlines, departing San Francisco on 17 September at 13:04, arriving Denver on 17 September at 15:46.
Flights on the San Francisco - Denver route are operated by the following airlines: Frontier Airlines.
The distance from San Francisco to Denver is 1554 km.