Find Cheap Flights from Colorado to San Francisco

Search hundreds of travel sites at once for deals on flights to San Francisco

Depart
Return
Any month
Compare vs. KAYAK |

Colorado to San Francisco Flight Information

Flights Arrive in San Francisco
Flights Depart from Colorado
Flight Price $97
Airlines Frontier, United Airlines, American Airlines, Delta

Book cheap flights from Colorado to San Francisco (round-trip)

Airports
Origin
Grand Junction
$230
only
$230
Denver
$97
only
$97
Montrose
$639
only
$639
Colorado Springs
$216
only
$216
Destination
San Francisco
$97
only
$97
Wed, Jan 30
DEN
Denver International
SFO
San Francisco
2h 59m
Sat, Feb 2
SFO
San Francisco
DEN
Denver International
2h 42m
Trip: 4 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Okay 4.0

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

DEN
SFO
Mediocre 2.0

Cons: 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 2.6

Pros: Nothing

Cons: Frontier is the worst airline. No sense of flight time, service is horrible, seats are terrible, flight stinks. And prices are not cheap at all. They fly whenever they like.

DEN
SFO
Mediocre 2.0

Cons: We missed this flight because our earlier flight was delayed and all frontier would do is tell us that we could “google” flights on other airlines to get us where we needed to go. No hotel voucher for the forced overnight, no refund for the missed leg, nothing. I really don’t understand how this company is in business.

DEN
SFO
Mediocre 2.0

Pros: Nothing

Cons: Everything

Tue, Mar 5
DEN
Denver International
SFO
San Francisco
2h 46m
Wed, Mar 6
SFO
San Francisco
DEN
Denver International
2h 48m
Trip: 2 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 193 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
SFO
Excellent 8.6

Pros: Good flight with no issues.

Cons: No complaints

DEN
SFO
Okay 5.3

Pros: Got an aisle seat

Cons: Plane was late. No Wi-Fi.

DEN
SFO
Excellent 10.0

Pros: Food was great

DEN
SFO
Excellent 10.0

Pros: On time!

DEN
SFO
Excellent 10.0

Cons: Boarding group is getting huge!!!

Tue, Jan 22
COS
Colorado Springs
SFO
San Francisco
7h 37m
Tue, Jan 29
SFO
San Francisco
COS
Colorado Springs
4h 07m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
JFK
DCA
Good 7.5

Pros: It was quick.

Cons: Flying these days is no better than taking a local bus.

BNA
LAX
Excellent 8.8

Pros: there was an open seat between aisle and window seat!!! however I did pay extra $40 for that seat. so nice to be able to move without constantly knocking into person sitting smashed next to you! great AA crew, polite & professional. on time departure and arrival. comfortable cabin, seats

Cons: would be nice to have individual entertainment screen - instead it was above every few seats

ROC
CLT
Good 6.0

Pros: The airlines don't allow enough room to sit comfortably. I am 6' 2" 250 lbs. My knees touch the back of the seat in front of me and there is no room side to side. Very uncomfortable.

CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

PHL
MAD
Excellent 8.0

Pros: Punctual, connexion gate very close

Tue, Jan 8
GJT
Grand Junction Regnl
SFO
San Francisco
6h 04m
Sat, Jan 12
SFO
San Francisco
GJT
Grand Junction Regnl
3h 46m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,950 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
FCO
ATL
Good 7.0

Pros: THe crew was super

Cons: Confort no good very tight seats Movies hard to understand Announcements hard to hear

BOS
PHL
Excellent 8.6

Pros: We left early

RDU
JFK
Mediocre 2.0

Pros: Nothing

Cons: I missed my flight due to Tsa

LAX
HNL
Good 6.0

Pros: One of the flight attendants was nice.

Cons: 5+ hours and just some bagged snacks. Had to wait forever for soda. Screen was difficult to work - touch wasn’t working. Much smaller program selection than flights 6 days ago from RSW to LAX via ATL.

DTW
LAX
Excellent 10.0

Pros: Everything went smoothly. Baggage was at carousel before we were, a first.

Cons: Everything was fine.

Fri, Feb 1
DEN
Denver International
SFO
San Francisco
2h 47m
Wed, Feb 20
SFO
San Francisco
DEN
Denver International
2h 42m
Trip: 20 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Mediocre 2.0

Pros: The clerk was accommodating enough to look up other airlines where I could purchase another ticket. She also told me to never trust the alerts or website and to show up on scheduled time. I wish I had known this an hour earlier and $400 later. Thanks Frontier!

Cons: Got alerts from Frontier and checked their website and both said that the flight had been delayed an hour and a half. I showed up an hour before the delayed departure time and the clerk told me that the plane was loading and I would not be able to board. I understand I should have showed up earlier but my rating is based on the dishonesty of the time I was given.

DEN
SFO
Mediocre 3.0

Pros: Not to much

Cons: 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
Mediocre 2.0

Cons: 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

Cons: It's $40 to bring a carry on... really?

DEN
SFO
Good 6.0

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

Tue, Feb 5
DEN
Denver International
SFO
San Francisco
2h 47m
Fri, Feb 8
SFO
San Francisco
DEN
Denver International
2h 42m
Trip: 4 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Mediocre 2.0

Cons: 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 4.0

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

DEN
SFO
Mediocre 3.0

Pros: Not to much

Cons: 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
Mediocre 2.0

Cons: We missed this flight because our earlier flight was delayed and all frontier would do is tell us that we could “google” flights on other airlines to get us where we needed to go. No hotel voucher for the forced overnight, no refund for the missed leg, nothing. I really don’t understand how this company is in business.

DEN
SFO
Good 6.0

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

Wed, Apr 17
DEN
Denver International
SFO
San Francisco
2h 57m
Wed, Apr 24
SFO
San Francisco
DEN
Denver International
2h 48m
Trip: 8 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Mediocre 2.0

Pros: Nothing

Cons: Everything

DEN
SFO
Good 6.0

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

DEN
SFO
Mediocre 2.0

Pros: The clerk was accommodating enough to look up other airlines where I could purchase another ticket. She also told me to never trust the alerts or website and to show up on scheduled time. I wish I had known this an hour earlier and $400 later. Thanks Frontier!

Cons: Got alerts from Frontier and checked their website and both said that the flight had been delayed an hour and a half. I showed up an hour before the delayed departure time and the clerk told me that the plane was loading and I would not be able to board. I understand I should have showed up earlier but my rating is based on the dishonesty of the time I was given.

DEN
SFO
Mediocre 2.0

Cons: 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

Cons: 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.

Fri, Mar 1
DEN
Denver International
SFO
San Francisco
2h 46m
Mon, Mar 4
SFO
San Francisco
DEN
Denver International
2h 32m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 193 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
SFO
Good 7.6

Pros: The crew and the fact that they at least acted like they cared.

Cons: After UA posted a four hour delay for my original flight, I switched to the next available 1.5 hours later. That flight got delayed and then delayed some more, and by the time I got to SFO, the flight I originally booked, landed about 20 minutes later.

DEN
SFO
Excellent 10.0

Pros: On time!

DEN
SFO
Excellent 10.0

Pros: Personal entertainment system

DEN
SFO
Excellent 10.0

Cons: Boarding group is getting huge!!!

DEN
SFO
Excellent 8.6

Pros: Good flight with no issues.

Cons: No complaints

Tue, May 7
DEN
Denver International
SFO
San Francisco
2h 40m
Wed, May 15
SFO
San Francisco
DEN
Denver International
2h 45m
Trip: 9 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Mediocre 2.0

Cons: 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

Cons: We missed this flight because our earlier flight was delayed and all frontier would do is tell us that we could “google” flights on other airlines to get us where we needed to go. No hotel voucher for the forced overnight, no refund for the missed leg, nothing. I really don’t understand how this company is in business.

DEN
SFO
Mediocre 2.0

Pros: The clerk was accommodating enough to look up other airlines where I could purchase another ticket. She also told me to never trust the alerts or website and to show up on scheduled time. I wish I had known this an hour earlier and $400 later. Thanks Frontier!

Cons: Got alerts from Frontier and checked their website and both said that the flight had been delayed an hour and a half. I showed up an hour before the delayed departure time and the clerk told me that the plane was loading and I would not be able to board. I understand I should have showed up earlier but my rating is based on the dishonesty of the time I was given.

DEN
SFO
Mediocre 3.0

Pros: Not to much

Cons: 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

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

Fri, Apr 26
DEN
Denver International
SFO
San Francisco
2h 45m
Mon, Apr 29
SFO
San Francisco
DEN
Denver International
5h 25m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 193 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
SFO
Good 7.6

Pros: The crew and the fact that they at least acted like they cared.

Cons: After UA posted a four hour delay for my original flight, I switched to the next available 1.5 hours later. That flight got delayed and then delayed some more, and by the time I got to SFO, the flight I originally booked, landed about 20 minutes later.

DEN
SFO
Excellent 10.0

Cons: Boarding group is getting huge!!!

DEN
SFO
Mediocre 2.0

Cons: I didn't go on my trip. My course in SF was cancelled and United would n't refund my money or change the dates for my trips because of there basic economy package. They have 3 different economy packages and the economy basic doesn't get refunds and you can't change the flights if needed. It feels like they are banking on increasing there ROI with this basic economy ticket which is 40 -60 dollars cheaper than the next economy package. Intuitively they know people will pick that, but if something comes up the customer is screwed.

DEN
SFO
Okay 5.3

Pros: Got an aisle seat

Cons: Plane was late. No Wi-Fi.

DEN
SFO
Okay 5.3

Cons: Flight was 65 mins delayed due to mechanical issues. Updates came from flight attendants insisting gate agents update the flight status.

Wed, Dec 19
DEN
Denver International
SFO
San Francisco
2h 47m
Sat, Jan 12
SFO
San Francisco
DEN
Denver International
2h 42m
Trip: 25 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Okay 4.0

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

DEN
SFO
Mediocre 2.6

Pros: Nothing

Cons: Frontier is the worst airline. No sense of flight time, service is horrible, seats are terrible, flight stinks. And prices are not cheap at all. They fly whenever they like.

DEN
SFO
Mediocre 2.0

Cons: 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 3.6

Cons: Too many hiccups on Frontier website. Hidden fees and/or charges for everything. Delayed flights. Unfriendly team.

DEN
SFO
Good 6.0

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

Tue, Apr 2
DEN
Denver International
SFO
San Francisco
2h 49m
Wed, Apr 24
SFO
San Francisco
DEN
Denver International
2h 48m
Trip: 23 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Mediocre 3.0

Pros: Not to much

Cons: 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
Mediocre 2.0

Cons: We missed this flight because our earlier flight was delayed and all frontier would do is tell us that we could “google” flights on other airlines to get us where we needed to go. No hotel voucher for the forced overnight, no refund for the missed leg, nothing. I really don’t understand how this company is in business.

DEN
SFO
Good 6.0

Cons: It's $40 to bring a carry on... really?

DEN
SFO
Okay 4.0

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

DEN
SFO
Mediocre 3.6

Cons: Too many hiccups on Frontier website. Hidden fees and/or charges for everything. Delayed flights. Unfriendly team.

Wed, Feb 20
GJT
Grand Junction Regnl
SFO
San Francisco
5h 15m
Tue, Feb 26
SFO
San Francisco
GJT
Grand Junction Regnl
4h 45m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
ORD
LGA
Mediocre 2.0

Cons: They lost my luggage. They did not allow me to take her whit me in the plane because i did not fit a suitcase that always travel on top because is small suitcase terrible I will never travel again with amercan airlines

CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

ROC
CLT
Good 6.0

Pros: The airlines don't allow enough room to sit comfortably. I am 6' 2" 250 lbs. My knees touch the back of the seat in front of me and there is no room side to side. Very uncomfortable.

GSP
CLT
Okay 4.0

Pros: Seats

Cons: WiFi was weak...things were stolen out of my carry on checked at the gate in Charlotte...I had the only bag checked at the gate.

ICT
ORD
Mediocre 2.0

Cons: Poor they lost my luggage. They did not allowed me to take my suitcas whit me because the plan was too small. I never travel again whit amercan airlines

Sun, Dec 23
DEN
Denver International
SFO
San Francisco
2h 47m
Fri, Dec 28
SFO
San Francisco
DEN
Denver International
2h 29m
Trip: 6 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Okay 4.0

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

DEN
SFO
Mediocre 2.0

Cons: 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

Cons: 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

Pros: THe passengers were well behave during and polite

Cons: The 2 hour flight delay

DEN
SFO
Mediocre 2.0

Pros: The clerk was accommodating enough to look up other airlines where I could purchase another ticket. She also told me to never trust the alerts or website and to show up on scheduled time. I wish I had known this an hour earlier and $400 later. Thanks Frontier!

Cons: Got alerts from Frontier and checked their website and both said that the flight had been delayed an hour and a half. I showed up an hour before the delayed departure time and the clerk told me that the plane was loading and I would not be able to board. I understand I should have showed up earlier but my rating is based on the dishonesty of the time I was given.

Sat, Feb 2
COS
Colorado Springs
SFO
San Francisco
8h 24m
Thu, Feb 7
SFO
San Francisco
COS
Colorado Springs
5h 39m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
CLT
SFO
Okay 4.6

Pros: Plane was clean

Cons: My belongings stolen

AKL
LAX
Excellent 10.0

Pros: I was in business class and the individual cubicles were so comfortable. I slept well. The airline attendant was so attentive and helpful

Cons: Going through LAX what a mess

RSW
DFW
Okay 4.6

Cons: On both segments of the trip American changed my seat which I. I’d not realize until boarding. Way to late to protest. You pay for preferred seating but then get bumped to a lousy seat with no explanation. Likely because I was a single traveler and an American employee wanted my seat. Better not happen on the return flight

JFK
DCA
Good 7.5

Pros: It was quick.

Cons: Flying these days is no better than taking a local bus.

SFO
PHL
Excellent 8.0

Pros: Puntual, connexion gates very closed,

Cons: I need to paid 100$ or more to have a seat

Mon, Dec 31
GJT
Grand Junction Regnl
SFO
San Francisco
7h 05m
Wed, Jan 9
SFO
San Francisco
GJT
Grand Junction Regnl
3h 55m
Trip: 10 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,950 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
SEA
GEG
Mediocre 2.0

Cons: The pplane was two hours late to depart due to technical issues.

ANC
SEA
Excellent 9.0

Pros: Everything was fine. Delta did a great job.

Cons: The kid screaming in my ear for 3 hours

RDU
JFK
Mediocre 2.0

Pros: Nothing

Cons: I missed my flight due to Tsa

LAX
HNL
Good 6.0

Pros: One of the flight attendants was nice.

Cons: 5+ hours and just some bagged snacks. Had to wait forever for soda. Screen was difficult to work - touch wasn’t working. Much smaller program selection than flights 6 days ago from RSW to LAX via ATL.

ATL
MCI
Excellent 10.0

Pros: Nice people

Cons: Waiting at gate in KC

Mon, Dec 24
MTJ
Montrose County
SFO
San Francisco
11h 35m
Sun, Dec 30
SFO
San Francisco
MTJ
Montrose County
2h 15m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 21
COS
Colorado Springs
SFO
San Francisco
4h 59m
Wed, Dec 26
SFO
San Francisco
COS
Colorado Springs
6h 11m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,989 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
TPA
IAD
Good 6.0

Pros: Very helpful, took time to assist me with using computer to print boarding passes. Security check was quick.

Cons: No entertainment

NRT
LAX
Excellent 10.0

Pros: Friendly staff and fast service.

IAD
MUC
Excellent 8.3

Pros: The arrival gate was extemely close to the departing gate. I did not have to walk the usually long and exhausting distance from one terminal to another. Thank goodness.

Cons: Broarding was well organized by groups andmoved quickly. The choice of dinner was not an option. By the time the stewardess reached me, only pasta was left. But having italian gelato for dessert was an acceptable compensation. Breakfast ,however, was ho..hummm without any redeeming compensation. choice of beverages was refreshing.

SAN
IAH
Excellent 10.0

Pros: Wonderful timely departure and landing

Cons: None

BRU
IAD
Excellent 8.0

Pros: The flight was fine, despite the distance.

Fri, Jan 18
COS
Colorado Springs
SFO
San Francisco
6h 57m
Sun, Jan 20
SFO
San Francisco
COS
Colorado Springs
8h 28m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 35,815 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.8
Entertainment
6.8
Food
6.7
PHL
MAD
Excellent 8.0

Pros: Punctual, connexion gate very close

AKL
LAX
Excellent 10.0

Pros: I was in business class and the individual cubicles were so comfortable. I slept well. The airline attendant was so attentive and helpful

Cons: Going through LAX what a mess

ROC
CLT
Good 6.0

Pros: The airlines don't allow enough room to sit comfortably. I am 6' 2" 250 lbs. My knees touch the back of the seat in front of me and there is no room side to side. Very uncomfortable.

ORD
LGA
Mediocre 2.0

Cons: They lost my luggage. They did not allow me to take her whit me in the plane because i did not fit a suitcase that always travel on top because is small suitcase terrible I will never travel again with amercan airlines

SFO
PHL
Excellent 8.0

Pros: Puntual, connexion gates very closed,

Cons: I need to paid 100$ or more to have a seat

Wed, May 1
DEN
Denver International
SFO
San Francisco
2h 43m
Sun, May 5
SFO
San Francisco
DEN
Denver International
2h 34m
Trip: 5 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 596 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
DEN
SFO
Okay 4.3

Cons: Everything. The flights are constantly being delayed. Poor selection of snacks and beverages. If people are going to pay $3 for a can of orange juice. It should be a lot better than concentrate minute maid. There are no business class seats. None of the seats recline on the whole plane. Im still waiting for a voucher from a previously canceled flight.

DEN
SFO
Mediocre 2.6

Pros: Nothing

Cons: Frontier is the worst airline. No sense of flight time, service is horrible, seats are terrible, flight stinks. And prices are not cheap at all. They fly whenever they like.

DEN
SFO
Mediocre 2.0

Cons: 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 2.0

Pros: The clerk was accommodating enough to look up other airlines where I could purchase another ticket. She also told me to never trust the alerts or website and to show up on scheduled time. I wish I had known this an hour earlier and $400 later. Thanks Frontier!

Cons: Got alerts from Frontier and checked their website and both said that the flight had been delayed an hour and a half. I showed up an hour before the delayed departure time and the clerk told me that the plane was loading and I would not be able to board. I understand I should have showed up earlier but my rating is based on the dishonesty of the time I was given.

DEN
SFO
Mediocre 2.0

Pros: Nothing

Cons: Everything

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.