Find Cheap Flights from Colorado to San Francisco

I didn’t like anything about it.

I almost missed my flight because you oversold . Your agent at the gate wasn’t friendly at all. I had to call the customer service so I get my seat.

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.

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

Nothing

Everything

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.

The delayed flights and neck pillows.

Seat space was very tight

On time!

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.

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.

Nothing

Everything

I didn’t like anything about it.

I almost missed my flight because you oversold . Your agent at the gate wasn’t friendly at all. I had to call the customer service so I get my seat.

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

I didn’t like anything about it.

I almost missed my flight because you oversold . Your agent at the gate wasn’t friendly at all. I had to call the customer service so I get my seat.

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

Nothing

Everything

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.

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

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

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.

The flight attendants were very kind and hoped to make up for the pilot’s negligence.

Boarding was weird with a lack of overhead bins and then the pilot was inconsistent with updates to safety issues. We were delayed by an hour and twenty mins and then had to wait on the tarmac for another plane to leave the gate. Feels like I wasted two hours in limbo.

Although we ended up being stuck on the plane for 2 hours prior to take off due to high volume, weather and as the pilot put it, "possible military activity" the crew kept us informed every step of the way. There was one flight attendant in particular who was so full of energy and made the unfortunate circumstances not so bad. She entertained us and kept us in the loop the entire time as did the pilots. It made the 2 hours not feel so bad which was appreciated.

That we were delayed on the plane for two hours on a small plane but I know it was out of their control.

The bag service

The flight delays

Flight was delayed.

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.

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.

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

Nothing

Everything

Great crew, on-time arrival, quick boarding

Crowded seats in the back of the plane, Low quality and bland snack options

organized boarding, quick and professional, flight crew was awesome, very comfortable flight, much appreciated no

No entertainment options on 2+ hour flight. Would have been nice to have.

Great movies and food

Being delayed

Pilot was informative.

THe passengers were well behave during and polite

The 2 hour flight delay

Nothing

Everything

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.

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.

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.

THe passengers were well behave during and polite

The 2 hour flight delay

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.

Nothing

Everything

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

Got an aisle seat

Plane was late. No Wi-Fi.

The delayed flights and neck pillows.

On time!

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

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.

THe passengers were well behave during and polite

The 2 hour flight delay

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.

Nothing

Everything

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.

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

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.

Boarding issues cause delay after plane had to be replaced People were double booked Then land awaited on tarmac because of no ground crew Caused me to miss my next flight

The schedule was not good and I was needed to take later flight than I ordered.

Although we ended up being stuck on the plane for 2 hours prior to take off due to high volume, weather and as the pilot put it, "possible military activity" the crew kept us informed every step of the way. There was one flight attendant in particular who was so full of energy and made the unfortunate circumstances not so bad. She entertained us and kept us in the loop the entire time as did the pilots. It made the 2 hours not feel so bad which was appreciated.

That we were delayed on the plane for two hours on a small plane but I know it was out of their control.

The bag service

The flight delays

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.

Nothing

Everything

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.

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.

Flight crew from Geneva was nice

The pilot held the Geneva flight for 35 minutes for late arriving inbound passengers. This helped them but hurt far more passengers connecting in Washington DC. We missed our flight and waited in standby mode all evening for a Denver flight.

Service

Nothing

Agent at the gate

My seats changed so my son and I were not sitting together. The agent at the gate was wonderful and got us seated together.

Efficient

Delayed departure; cramped seat; minimal amenities

THe passengers were well behave during and polite

The 2 hour flight delay

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

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.

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.

Second standby adventure of the day got longer as inbound flight was late.

Everything was on time and on schedule.

No food.

You had us leaving from Dallas...we were on flight from Houston to Amsterdam

Agent at the gate

My seats changed so my son and I were not sitting together. The agent at the gate was wonderful and got us seated together.

The flight was very smooth and the landing also was very good. The selection of movie are plenty.

Everything ran smoothly on this flight. No delays before, pleasant staff, great entertainment selection, okay food options, working equipment (e.g., tv in the headrest worked, seatbelts worked, lavatories were operational, etc.). This flight met all my expectations

The only hiccup was the wait time on the runway before take off. Not sure if that was the airport’s fault or the airline’s fault. We must have waited 45 minutes.

Flight was delayed.

Although we ended up being stuck on the plane for 2 hours prior to take off due to high volume, weather and as the pilot put it, "possible military activity" the crew kept us informed every step of the way. There was one flight attendant in particular who was so full of energy and made the unfortunate circumstances not so bad. She entertained us and kept us in the loop the entire time as did the pilots. It made the 2 hours not feel so bad which was appreciated.

That we were delayed on the plane for two hours on a small plane but I know it was out of their control.