Find Cheap Flights from Colorado to San Francisco

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Sat 2/17
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Book cheap flights from Colorado to San Francisco (round-trip)

Airports
Origin
Grand Junction
$278
only
$278
Durango
$278
only
$278
Denver
$117
only
$117
Colorado Springs
$246
only
$246
Destination
San Francisco
$117
only
$117
Tue, Feb 27
DEN
SFO
2h 47m
Sat, Mar 3
SFO
DEN
2h 35m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 8
DEN
SFO
2h 48m
Mon, Mar 12
SFO
DEN
2h 41m
Trip: 4 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

DEN
SFO
Good 7.0

I did not like the lack of space.

DEN
SFO
Okay 4.0

Connecting flight was delayed by one hour!!!!!

DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

DEN
SFO
Good 6.0

Nice flight with competent crew.

Kiosks did not work for check-in so I had to queue up and wait for help. Then I got charged $45 for a carry-on. Not a great start to the day.

Thu, Mar 1
DEN
SFO
2h 49m
Wed, Mar 7
SFO
DEN
2h 31m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
DEN
SFO
2h 45m
Wed, Apr 4
SFO
DEN
2h 41m
Trip: 2 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Good 6.0

Nice flight with competent crew.

Kiosks did not work for check-in so I had to queue up and wait for help. Then I got charged $45 for a carry-on. Not a great start to the day.

DEN
SFO
Excellent 8.0

that it cost $45 per bag whether you used baggage shipped or carried one. Was then told if did,t pay it at counter, would cost $60 upstairs to carry on. Would only use airline as last resort due to this tactic

DEN
SFO
Good 7.0

I did not like the lack of space.

DEN
SFO
Good 6.0

The crew were great and considerate knowing a large portion of the passengers had just had a horrible flight from Atlanta.

Can't fault anything but the lack of healthy and/or meal options on the menu

DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

Sat, Apr 28
COS
SFO
5h 21m
Sat, May 5
SFO
COS
5h 52m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

Sat, Mar 3
DEN
SFO
2h 45m
Sun, Mar 4
SFO
DEN
2h 41m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
DRO
SFO
4h 52m
Wed, Apr 4
SFO
DRO
4h 19m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

LHR
JFK
Excellent 9.3

Great flat beds, entertainment, noise cancelling headphones. Awesome 3 course meal.

Could have made the bar area more exciting ... as Virgin Atlantic bars do.

JFK
EZE
Excellent 9.0

Beautiful design n great storage

Hard to get out of seat unless in fully upright biz class position

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

Tue, Apr 17
DEN
SFO
2h 45m
Sat, Apr 21
SFO
DEN
2h 40m
Trip: 5 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

DEN
SFO
Okay 5.0

Everything was ok. Not great and not aweful.

The seating was very crammed. Seats were too small.

DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

DEN
SFO
Good 6.0

The crew were great and considerate knowing a large portion of the passengers had just had a horrible flight from Atlanta.

Can't fault anything but the lack of healthy and/or meal options on the menu

Tue, May 1
DEN
SFO
2h 46m
Sun, May 13
SFO
DEN
2h 30m
Trip: 13 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 5.0

Everything was ok. Not great and not aweful.

The seating was very crammed. Seats were too small.

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

DEN
SFO
Good 6.0

The flight was delayed an hour and the website would never work on my phone to check in and pay for our baggage.

DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

DEN
SFO
Good 6.0

The crew were great and considerate knowing a large portion of the passengers had just had a horrible flight from Atlanta.

Can't fault anything but the lack of healthy and/or meal options on the menu

Tue, Apr 10
DEN
SFO
2h 45m
Sat, Apr 14
SFO
DEN
2h 29m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
DEN
SFO
2h 45m
Thu, Apr 5
SFO
DEN
2h 42m
Trip: 3 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Good 6.0

Fairly inexpensiveI

I did not like the fact that I was charged $45 for a carry on piece of luggage both ways. It added $90 to the cost of my trip.

DEN
SFO
Okay 5.0

Everything was ok. Not great and not aweful.

The seating was very crammed. Seats were too small.

DEN
SFO
Excellent 8.0

that it cost $45 per bag whether you used baggage shipped or carried one. Was then told if did,t pay it at counter, would cost $60 upstairs to carry on. Would only use airline as last resort due to this tactic

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

Thu, Mar 22
GJT
SFO
4h 05m
Sun, Mar 25
SFO
GJT
3h 56m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

Tue, Jun 5
DEN
SFO
2h 46m
Wed, Jun 13
SFO
DEN
2h 29m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
DEN
SFO
2h 46m
Sun, May 13
SFO
DEN
2h 30m
Trip: 4 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 4.0

Connecting flight was delayed by one hour!!!!!

DEN
SFO
Mediocre 2.0

The crew was rude to the passengers. They charge form 9$ to 40$ for seat selection. Charge for a Carry on bag (anything that doesn't fit under your seat). The flights had maintenance issue, hence delayed. I will absolutely avoid traveling with frontier in the future.

DEN
SFO
Mediocre 3.0

Not to much

Was like riding a city bus. Even in row one didn't have much room to stretch out. Check in took awhile. Only thing they had going for them was good pilots and staff. But the planes are trash no entertainment, little selection of food and drinks. Don't suggest at all.

DEN
SFO
Good 6.0

Nice flight with competent crew.

Kiosks did not work for check-in so I had to queue up and wait for help. Then I got charged $45 for a carry-on. Not a great start to the day.

DEN
SFO
Good 6.0

The crew were great and considerate knowing a large portion of the passengers had just had a horrible flight from Atlanta.

Can't fault anything but the lack of healthy and/or meal options on the menu

Fri, Jun 1
DEN
SFO
2h 40m
Tue, Jun 5
SFO
DEN
2h 30m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 17
DEN
SFO
2h 45m
Mon, Mar 19
SFO
DEN
2h 41m
Trip: 3 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 582 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 5.0

Everything was ok. Not great and not aweful.

The seating was very crammed. Seats were too small.

DEN
SFO
Good 6.0

Fairly inexpensiveI

I did not like the fact that I was charged $45 for a carry on piece of luggage both ways. It added $90 to the cost of my trip.

DEN
SFO
Good 7.0

I did not like the lack of space.

DEN
SFO
Good 6.0

The crew were great and considerate knowing a large portion of the passengers had just had a horrible flight from Atlanta.

Can't fault anything but the lack of healthy and/or meal options on the menu

DEN
SFO
Good 6.0

Nice flight with competent crew.

Kiosks did not work for check-in so I had to queue up and wait for help. Then I got charged $45 for a carry-on. Not a great start to the day.

Wed, Jun 6
DEN
SFO
2h 40m
Sat, Jun 9
SFO
DEN
2h 42m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
GJT
SFO
4h 49m
Mon, Apr 9
SFO
GJT
4h 09m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

Fri, Apr 6
GJT
SFO
4h 56m
Mon, Apr 9
SFO
GJT
6h 07m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
SJU
MIA
Excellent 9.3

New onboard entertainment

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

DFW
FLL
Excellent 8.0

No issues at all

N/A

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

JFK
EZE
Excellent 9.0

Beautiful design n great storage

Hard to get out of seat unless in fully upright biz class position

Thu, Jun 7
DEN
SFO
2h 40m
Fri, Jun 8
SFO
DEN
2h 42m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews

Colorado to San Francisco Flight Information

Flights Arrive in San Francisco
Flights Depart from Colorado
Flight Price $117
Airlines Frontier, United, American Airlines, Delta
*
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