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Colorado to San Francisco Flight Information

Flights Arrive in San Francisco
Flights Depart from Colorado
Flight Price $107
Airlines Frontier, American Airlines, United Airlines, Delta

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

Airports
Origin
Grand Junction
$252
only
$252
Denver
$107
only
$107
Colorado Springs
$252
only
$252
Destination
San Francisco
$107
only
$107
Tue, Oct 30
DEN
Denver International
SFO
San Francisco
2h 48m
Wed, Oct 31
SFO
San Francisco
DEN
Denver International
2h 38m
Trip: 2 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 4.3

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
Good 6.0

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

DEN
SFO
Mediocre 2.6

Nothing

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
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

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.

Wed, Apr 3
DEN
Denver International
SFO
San Francisco
4h 55m
Mon, Apr 15
SFO
San Francisco
DEN
Denver International
2h 25m
Trip: 13 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 34,451 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
PHX
EUG
Excellent 10.0

First class seating comfort and service. Even my flight in the main cabin was relatively comfortable, but I'm a smaller stature person so... On time promise kept every flight.

Extreme noise from the plane at certain times (mostly takeoff which can't be helped, I guess) Sitting in the first row of first class you get the light from the flight attendant kitchen area right in your face (Seat 1A-3A specifically)

PHL
FCO
Excellent 10.0

The meal.

DFW
LHR
Good 6.6

Very strict on baggage.. Even they don’t compromise for an additional kg in check in bag.you need to pay for most of the things.. even for a drink

LAX
PHX
Excellent 8.0

very attentive steward, nice snack choices

they allowed too many late people to board after departure on a 100% full flight; not due to lines, but because they were late to the gate

NRT
LAX
Excellent 9.0

comfortable seating, lots of movie choices. food and drink selections were nice.Galley snack choices were underwhelming

Staff was fair, but nothing compared to the service on JAL from CA to Tokyo. Very loud throughout the flight pushing the drink cart through the 8 Business Class rows instead of just delivering drinks to the 32 people in the section. Once the initial food & beverage service was complete, the service practically disappeared unless i sought them out in the galley.

Fri, Feb 8
DEN
Denver International
SFO
San Francisco
2h 45m
Mon, Feb 11
SFO
San Francisco
DEN
Denver International
4h 32m
Trip: 4 days
6.8GoodShow reviews
Overall 6.8 Good
Based on 187 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
DEN
SFO
Excellent 8.6

Good flight with no issues.

No complaints

DEN
SFO
Good 7.6

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

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
Okay 5.3

Got an aisle seat

Plane was late. No Wi-Fi.

DEN
SFO
Excellent 10.0

Boarding group is getting huge!!!

DEN
SFO
Excellent 10.0

On time!

Sat, Dec 1
DEN
Denver International
SFO
San Francisco
2h 54m
Mon, Dec 3
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 3 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 4.3

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 2.0

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 3.6

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

DEN
SFO
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

DEN
SFO
Good 6.0

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

Wed, Nov 28
DEN
Denver International
SFO
San Francisco
2h 54m
Wed, Dec 5
SFO
San Francisco
DEN
Denver International
2h 38m
Trip: 8 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.6

Nothing

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

Nothing

Everything

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 4.3

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.

Sat, Nov 10
GJT
Grand Junction Regnl
SFO
San Francisco
4h 22m
Wed, Nov 14
SFO
San Francisco
GJT
Grand Junction Regnl
3h 21m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,889 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
ATL
CRW
Excellent 10.0

Delta Flights are always enjoyable and the staff is always treats you with courtesy

The only thing I don't understand is how the planes are loaded. and this is only a comment and I know you and others carriers have there way of doing things. I just don't understand why you load the first section of the plane first and the back of the plane last, It looks like you would want to load the back and come forward so everyone is not getting hit and stood over while everyone is loading.

LAX
SFO
Mediocre 2.0

That it got me home

YYJ
SEA
Mediocre 2.0

Was not allowed to check in even tho flight was delayed. Horrible!

MSP
RDU
Good 6.0

Crew was great

Absolutely no entertainment for a flight that had way more people than my first one. Food options were horrible!

MSP
AMS
Good 7.6

Crew members were all very friendly and made the flight a nice trip as best they could.

It would make a lot more sense for people to board from the back and window seats first so that we are not climbing over each other to get to our tiny seats.

Tue, Nov 6
DEN
Denver International
SFO
San Francisco
2h 54m
Mon, Nov 12
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 7 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 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 4.0

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

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
Mediocre 3.6

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

DEN
SFO
Good 6.0

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

Wed, Dec 12
DEN
Denver International
SFO
San Francisco
2h 54m
Sat, Dec 15
SFO
San Francisco
DEN
Denver International
2h 24m
Trip: 4 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 4.3

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 2.0

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 2.6

Nothing

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
Okay 4.0

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

DEN
SFO
Mediocre 2.0

Nothing

Everything

Fri, Oct 26
DEN
Denver International
SFO
San Francisco
2h 48m
Tue, Oct 30
SFO
San Francisco
DEN
Denver International
2h 29m
Trip: 5 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Good 6.0

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

DEN
SFO
Mediocre 2.0

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!

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
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
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
Okay 4.3

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.

Tue, Feb 12
DEN
Denver International
SFO
San Francisco
2h 47m
Wed, Feb 20
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 9 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
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 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
Okay 4.3

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 3.6

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

DEN
SFO
Mediocre 2.0

Nothing

Everything

Wed, Oct 31
COS
Colorado Springs
SFO
San Francisco
6h 33m
Sat, Nov 3
SFO
San Francisco
COS
Colorado Springs
6h 40m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 34,451 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
PVD
CLT
Good 6.6

Overhead bins were full before my seat, so bag had to go in one behind me and it was a disaster trying to get it when it was time to get off the plane

DFW
SJC
Excellent 9.6

Great flight experience overall!

TUS
PHX
Excellent 10.0

First class seating comfort and service. Even my flight in the main cabin was relatively comfortable, but I'm a smaller stature person so... On time promise kept every flight.

DFW
TPA
Good 7.6

Beverages and biscotti Variety of entertainment Great Crew!!!!!

Only bevarages and biscotti Free entertainment isnt free..$10 wifi charge AND requires personal viewing device Ridiculously small toilets....and only two for large main cabin

BNA
DFW
Excellent 9.6

Great flight experience!

Fri, Dec 14
COS
Colorado Springs
SFO
San Francisco
6h 52m
Sun, Dec 16
SFO
San Francisco
COS
Colorado Springs
6h 47m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,012 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
CUN
IAH
Excellent 8.0

Tight seating

IAH
LIM
Excellent 8.6

Clean, new, amplíe seats... in Economy!

45 min delay...

SFO
YYJ
Good 6.0

The seats had more legroom on this small 2+2 then the 3+3 we connected from.

No entertainment as we were unable to download the app needed and had no notice before we went to the airport. Because small plane and length of flight only snack items available and our connection was late getting us there and left us no time

HAV
IAH
Good 6.3

Over size person sitting next to me. I was very tight in my space.

SFO
CVG
Excellent 10.0

Flight was on time and arrived early!

Fri, Nov 9
DEN
Denver International
SFO
San Francisco
2h 54m
Sat, Nov 10
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 2 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Okay 4.3

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 2.0

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!

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
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
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

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

Sat, Nov 3
COS
Colorado Springs
SFO
San Francisco
6h 33m
Tue, Nov 6
SFO
San Francisco
COS
Colorado Springs
6h 39m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 34,451 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
DFW
SJC
Excellent 9.6

Great flight experience overall!

PHX
EUG
Excellent 10.0

First class seating comfort and service. Even my flight in the main cabin was relatively comfortable, but I'm a smaller stature person so... On time promise kept every flight.

Extreme noise from the plane at certain times (mostly takeoff which can't be helped, I guess) Sitting in the first row of first class you get the light from the flight attendant kitchen area right in your face (Seat 1A-3A specifically)

DFW
LHR
Good 6.6

Very strict on baggage.. Even they don’t compromise for an additional kg in check in bag.you need to pay for most of the things.. even for a drink

TUS
PHX
Excellent 10.0

First class seating comfort and service. Even my flight in the main cabin was relatively comfortable, but I'm a smaller stature person so... On time promise kept every flight.

BNA
DFW
Excellent 9.6

Great flight experience!

Wed, Dec 5
GJT
Grand Junction Regnl
SFO
San Francisco
7h 15m
Sun, Dec 9
SFO
San Francisco
GJT
Grand Junction Regnl
4h 13m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,889 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
MSP
AMS
Good 7.6

Crew members were all very friendly and made the flight a nice trip as best they could.

It would make a lot more sense for people to board from the back and window seats first so that we are not climbing over each other to get to our tiny seats.

SLC
RNO
Excellent 9.6

I have never seen a gate attendant call each person by name as she scanned their boarding passes! At Delta I felt welcomed by every employee. Even the pilots greeted the passengers as they exited. All the other airlines just want my money, they want to cram me into smaller and smaller spaces and want me to sit there and shut up so they don't have to interact with me. I will fly Delta every chance I get, even if I have to pay more money.

STI
JFK
Okay 4.6

That I mis my conecting flight to Washington do to one of the crew members being late

DTW
MTY
Excellent 9.3

I did not like that they would not assign me a seat because the flight appeared to be oversold. Finally I was allowed to board (and it was a good seat location but the seat back was locked in the upright position and I wanted to knap)

ATL
CRW
Excellent 10.0

Delta Flights are always enjoyable and the staff is always treats you with courtesy

The only thing I don't understand is how the planes are loaded. and this is only a comment and I know you and others carriers have there way of doing things. I just don't understand why you load the first section of the plane first and the back of the plane last, It looks like you would want to load the back and come forward so everyone is not getting hit and stood over while everyone is loading.

Sat, Dec 1
COS
Colorado Springs
SFO
San Francisco
6h 43m
Tue, Dec 4
SFO
San Francisco
COS
Colorado Springs
6h 38m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 34,451 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.8
Food
6.7
LAX
PHX
Excellent 8.0

very attentive steward, nice snack choices

they allowed too many late people to board after departure on a 100% full flight; not due to lines, but because they were late to the gate

BNA
DFW
Excellent 9.6

Great flight experience!

CLT
NAS
Good 6.6

Asked for ginger ale, was not given one

PHX
EUG
Excellent 10.0

First class seating comfort and service. Even my flight in the main cabin was relatively comfortable, but I'm a smaller stature person so... On time promise kept every flight.

Extreme noise from the plane at certain times (mostly takeoff which can't be helped, I guess) Sitting in the first row of first class you get the light from the flight attendant kitchen area right in your face (Seat 1A-3A specifically)

DFW
LHR
Good 6.6

Very strict on baggage.. Even they don’t compromise for an additional kg in check in bag.you need to pay for most of the things.. even for a drink

Thu, Nov 8
DEN
Denver International
SFO
San Francisco
2h 54m
Tue, Nov 13
SFO
San Francisco
DEN
Denver International
2h 29m
Trip: 6 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 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 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!

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

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

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
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, Nov 1
COS
Colorado Springs
SFO
San Francisco
4h 41m
Mon, Nov 5
SFO
San Francisco
COS
Colorado Springs
3h 51m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,012 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
IAD
CLE
Good 6.6

Crew is friendly. Flight is on time. Nothing is surprise

The headset plug outlet were not fitting well (very loose) and provide very poor connection. Toilet is dirty after awhile and always busy.

CUN
IAH
Excellent 8.0

Tight seating

LAX
ORD
Excellent 10.0

Great service for my disabled uncle

PIT
ORD
Excellent 10.0

Efficient

Small seat space

BOS
ORD
Mediocre 2.6

Plane was on time.

Even as I was checking in for the flight, as an economy traveler, I was constantly reminded of all the things I wasn’t entitled to -all boarding was based on how much you’d paid, not where you were sitting. I didn’t expect special treatment, but once you’re at the gate, boarding agents usually treat passengers equally. Not so with United.

Thu, Jan 10
DEN
Denver International
SFO
San Francisco
2h 47m
Sat, Feb 2
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 24 days
4.5OkayShow reviews
Overall 4.5 Okay
Based on 592 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

DEN
SFO
Okay 4.0

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

DEN
SFO
Mediocre 2.6

Nothing

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

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 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!

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.

Fri, Jan 4
COS
Colorado Springs
SFO
San Francisco
6h 25m
Sun, Jan 6
SFO
San Francisco
COS
Colorado Springs
5h 12m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 60,012 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
YYJ
Good 6.0

The seats had more legroom on this small 2+2 then the 3+3 we connected from.

No entertainment as we were unable to download the app needed and had no notice before we went to the airport. Because small plane and length of flight only snack items available and our connection was late getting us there and left us no time

LAS
EWR
Excellent 8.0

On time!

Leg space and seat

BOS
ORD
Mediocre 2.6

Plane was on time.

Even as I was checking in for the flight, as an economy traveler, I was constantly reminded of all the things I wasn’t entitled to -all boarding was based on how much you’d paid, not where you were sitting. I didn’t expect special treatment, but once you’re at the gate, boarding agents usually treat passengers equally. Not so with United.

IAH
LIM
Excellent 8.6

Clean, new, amplíe seats... in Economy!

45 min delay...

CUN
IAH
Excellent 8.0

Tight seating

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