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Find Cheap Flights from San Francisco to Denver International (SFO - DEN)

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San Francisco to Denver International Flight Information

Avg. Flight Duration 2h 41m
Flights Arrive in Denver International
Flights Depart from San Francisco
Flight Price $111
Distance 965 miles
Airlines Frontier, United Airlines, Delta

Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
13%
expected price increase
Average Price:
$226
(avg. price over the last 2 weeks)
Good Deal:
$146
or less (round trip)

When to Book Flights from San Francisco to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $146 or less.
The cheapest flight from San Francisco to Denver International was found 39 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is January.
Morning departure is around 60% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Denver International Flights

How long does a flight from San Francisco to Denver International take?
An average nonstop flight takes 2h 25m, covering a distance of 965 miles.
How many flights are there between San Francisco and Denver International?
There are 1,111 (nonstop) flights between San Francisco and Denver International per week, averaging 161 per day.
Which airlines provide the cheapest flights from San Francisco to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($111), United Airlines ($142) and Delta ($207).
Do I need a passport to fly between San Francisco and Denver International?
No.
Which airlines fly most frequently between San Francisco and Denver International?
Air Canada (38 times daily), Air New Zealand (38 times daily), United Airlines (36 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Denver International?
For San Francisco to Denver International, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Denver International back to San Francisco, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

Airports
Origin
San Francisco
$111
only
$111
Destination
Denver
$111
only
$111
Tue, Nov 6
SFO
San Francisco
DEN
Denver International
2h 35m
Wed, Nov 14
DEN
Denver International
SFO
San Francisco
2h 54m
Trip: 9 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

My flight from SFO to Denver was canceled and I missed this flight. Had to pay more money for a mnother flight.

SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Okay 4.6

Price for flight was good.

Charge you for everything including carry on when we left Charlotte, buy not on the way back. Almost as much as the flight on the way out. Employees were rude in Charlotte but ok on planes and in San Francisco and Denver. Long flight delay in Denver on the way out. Not sure I will fly again. This was my first time on Frontier.

Wed, Jan 30
SFO
San Francisco
DEN
Denver International
2h 34m
Tue, Feb 5
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 186 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Okay 4.6

Nothing

Travel first class during normal breakfast hours and your choice is Raisin Bran? This is the Way United cuts cost and treats there premium class members? Beyond that you are also required to pay for WiFi? I won’t bother flying United again.

SFO
DEN
Good 7.0

Surprisingly positive experience on United. Unfortunately for ANZ, they have to deal with UA as their "partner" stateside, as UA has a habit of always messing something up. On this flight, I was pleasantly surprised...the flight left on time and arrived early, the bags were a little slow but acceptable, and the crew was good. The only complaint is the typical lack of room on UA planes. Fortunately the flight was less than 2 hours.

Lack of space. I have experienced worse on recent UA flights...at least this time my knees weren't actually touching the seat in front of me, and the person in front of me chose not to recline their seat so it stayed that way. The other issue with this flight was the boarding process, which was really slow. Fortunately, they towed the plane to the gate over an hour before departure and started boarding almost immediately so we still managed to leave on time.

SFO
DEN
Mediocre 3.0

Flight delayed over an hour. Connecting flight was held but luggage was left behind and had to be retrieved late the next night.

SFO
DEN
Excellent 10.0

It was incredible to get my flight moved up so my layover was much shorter.

SFO
DEN
Okay 4.0

Pretty sure my flight attendant was racist though I have no way of proving it. She was downright rude to me, and not a second later was overly courteous to the old, white male sitting in front of me. Also, they were really secretive about offering free drinks. Miserly a**holes didn't want to announce it so when I ordered a vodka they quietly told me it was free. So quietly in fact, that not even my wife sitting next to me heard it.

Sun, Apr 28
SFO
San Francisco
DEN
Denver International
4h 21m
Tue, May 14
DEN
Denver International
SFO
San Francisco
8h 27m
Trip: 17 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,906 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
MSP
ATL
Excellent 9.6

The crew was very nice. Quite helpful and pleasant.

The only small item is the gate size in MSP. Always a bit crowded but still departed on time so it’s not a large issue.

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
MCI
Excellent 10.0

The movies kept my daughter busy.

LAX
SFO
Mediocre 2.0

That it got me home

PDX
SEA
Okay 4.0

I was placed on an earlier flight as soon as I arrived at the Portland airport. The flight was full, there was no room for my bag in the overhead bins. The bag was checked, not to just Seattle but all the way to Venice. Well, surprise, surprise, the bag was lost on the way to Venice. KLM does not allow enough time in Amsterdam for luggage to make a connecting flight.

Tue, Oct 30
SFO
San Francisco
DEN
Denver International
2h 28m
Sat, Nov 3
DEN
Denver International
SFO
San Francisco
2h 48m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

Tue, Dec 11
SFO
San Francisco
DEN
Denver International
2h 35m
Sat, Dec 15
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

SFO
DEN
Mediocre 3.6

On time

Small tight seats no recline nopocket

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Mediocre 2.0

My flight from SFO to Denver was canceled and I missed this flight. Had to pay more money for a mnother flight.

Fri, Jan 25
SFO
San Francisco
DEN
Denver International
2h 35m
Tue, Jan 29
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Okay 4.3

the price

the stressful environment with screaming babies/toddlers (six of them) the whole way non-stop

SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

Fri, Feb 1
SFO
San Francisco
DEN
Denver International
2h 35m
Tue, Feb 5
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

SFO
DEN
Mediocre 3.6

On time

Small tight seats no recline nopocket

SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

Sat, Mar 2
SFO
San Francisco
DEN
Denver International
2h 25m
Wed, Mar 6
DEN
Denver International
SFO
San Francisco
2h 57m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 186 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Mediocre 3.0

Crew was nice.

The seats and leg room is way to small and crowded.

SFO
DEN
Okay 4.0

Pretty sure my flight attendant was racist though I have no way of proving it. She was downright rude to me, and not a second later was overly courteous to the old, white male sitting in front of me. Also, they were really secretive about offering free drinks. Miserly a**holes didn't want to announce it so when I ordered a vodka they quietly told me it was free. So quietly in fact, that not even my wife sitting next to me heard it.

SFO
DEN
Good 7.0

Surprisingly positive experience on United. Unfortunately for ANZ, they have to deal with UA as their "partner" stateside, as UA has a habit of always messing something up. On this flight, I was pleasantly surprised...the flight left on time and arrived early, the bags were a little slow but acceptable, and the crew was good. The only complaint is the typical lack of room on UA planes. Fortunately the flight was less than 2 hours.

Lack of space. I have experienced worse on recent UA flights...at least this time my knees weren't actually touching the seat in front of me, and the person in front of me chose not to recline their seat so it stayed that way. The other issue with this flight was the boarding process, which was really slow. Fortunately, they towed the plane to the gate over an hour before departure and started boarding almost immediately so we still managed to leave on time.

SFO
DEN
Good 6.0

Staff was nice!

I didn't like the luggage restrictions associated with our tickets.

SFO
DEN
Excellent 10.0

It was incredible to get my flight moved up so my layover was much shorter.

Tue, Dec 4
SFO
San Francisco
DEN
Denver International
2h 35m
Tue, Dec 11
DEN
Denver International
SFO
San Francisco
2h 54m
Trip: 8 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

Flight crew were rude.

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

Fri, Nov 2
SFO
San Francisco
DEN
Denver International
2h 28m
Wed, Nov 7
DEN
Denver International
SFO
San Francisco
2h 54m
Trip: 6 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Okay 4.6

Price for flight was good.

Charge you for everything including carry on when we left Charlotte, buy not on the way back. Almost as much as the flight on the way out. Employees were rude in Charlotte but ok on planes and in San Francisco and Denver. Long flight delay in Denver on the way out. Not sure I will fly again. This was my first time on Frontier.

SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Mediocre 2.0

Flight crew were rude.

Wed, Nov 21
SFO
San Francisco
DEN
Denver International
6h 31m
Sun, Nov 25
DEN
Denver International
SFO
San Francisco
31h 45m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 11
SFO
San Francisco
DEN
Denver International
2h 35m
Mon, Dec 17
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

Flight crew were rude.

SFO
DEN
Mediocre 2.0

My flight from SFO to Denver was canceled and I missed this flight. Had to pay more money for a mnother flight.

SFO
DEN
Okay 4.3

the price

the stressful environment with screaming babies/toddlers (six of them) the whole way non-stop

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

Thu, Mar 28
SFO
San Francisco
DEN
Denver International
4h 32m
Fri, Apr 5
DEN
Denver International
SFO
San Francisco
5h 05m
Trip: 9 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20,906 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
LAX
SFO
Mediocre 2.0

That it got me home

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)

IND
JFK
Excellent 10.0

Quick and smooth boarding. Crew was very pleasant and welcoming. Temperature was for the most part comfortable. Quick disembarkment

Very tight carry on space requiring gate check. Delay leaving aircraft. Seating at gate assigned. No options. This was a short flight and I was in an exit row, making this flight comfortable

YYJ
SEA
Mediocre 2.0

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

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.

Tue, Feb 5
SFO
San Francisco
DEN
Denver International
2h 35m
Wed, Feb 6
DEN
Denver International
SFO
San Francisco
2h 49m
Trip: 2 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Okay 4.6

Price for flight was good.

Charge you for everything including carry on when we left Charlotte, buy not on the way back. Almost as much as the flight on the way out. Employees were rude in Charlotte but ok on planes and in San Francisco and Denver. Long flight delay in Denver on the way out. Not sure I will fly again. This was my first time on Frontier.

SFO
DEN
Mediocre 2.0

Flight crew were rude.

SFO
DEN
Okay 4.3

the price

the stressful environment with screaming babies/toddlers (six of them) the whole way non-stop

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

Tue, Oct 23
SFO
San Francisco
DEN
Denver International
2h 28m
Sat, Oct 27
DEN
Denver International
SFO
San Francisco
2h 48m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Mediocre 3.6

On time

Small tight seats no recline nopocket

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Okay 4.0

The fact that every time I fly frontier, there is a delay

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

Tue, Apr 23
SFO
San Francisco
DEN
Denver International
2h 32m
Sun, Apr 28
DEN
Denver International
SFO
San Francisco
2h 45m
Trip: 6 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

Flight crew were rude.

SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 3.6

On time

Small tight seats no recline nopocket

SFO
DEN
Okay 4.3

the price

the stressful environment with screaming babies/toddlers (six of them) the whole way non-stop

SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

Thu, Nov 1
SFO
San Francisco
DEN
Denver International
2h 28m
Sat, Nov 3
DEN
Denver International
SFO
San Francisco
13h 22m
Trip: 3 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 3.3

Crew were very nice

$3 for soft drink. Late flight on departure and return. Won't fly Frontier again.

SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

SFO
DEN
Okay 4.0

The fact that every time I fly frontier, there is a delay

Wed, Feb 13
SFO
San Francisco
DEN
Denver International
2h 35m
Mon, Feb 18
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 6 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

SFO
DEN
Mediocre 2.0

Flight crew were rude.

SFO
DEN
Mediocre 2.0

The fact that I almost got home. Almost.

After 4 hours of no information as to why the plane was not boarding, we boarded. Then we were asked to exit the plane and told it was cancelled. Then we had to wait 8 hours with the worst customer service and had to book a flight with United in order to st home. Awful experience.

SFO
DEN
Okay 4.0

The fact that every time I fly frontier, there is a delay

SFO
DEN
Okay 5.6

Low entry fare

Add on fees for everything which is fine if you are aware of them. The low blow was the $8 can of domestic beer.

Wed, Dec 19
SFO
San Francisco
DEN
Denver International
2h 42m
Mon, Dec 31
DEN
Denver International
SFO
San Francisco
2h 46m
Trip: 13 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 648 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SFO
DEN
Mediocre 2.0

The relented after I begged for a refund, but the customer services Dept is just about powerless to solve basic issues and take care of customers

Fly at your own peril, because they could leave you stranded for days if a single plan breaks down or become cancelled, as there is no plan B

SFO
DEN
Mediocre 3.3

The flight attendents were wonderful, funny, and nice.

The seats dont recline. The tray table is tiny. They charge for non alcoholic beverages. They charged me $45 for my carry on bag. Frontier is the worst, not worth the discounted ticket at all.

SFO
DEN
Okay 4.6

Price for flight was good.

Charge you for everything including carry on when we left Charlotte, buy not on the way back. Almost as much as the flight on the way out. Employees were rude in Charlotte but ok on planes and in San Francisco and Denver. Long flight delay in Denver on the way out. Not sure I will fly again. This was my first time on Frontier.

SFO
DEN
Mediocre 2.0

My flight was cacelled. Me amonst other passenger did not get a voucher for a hotel. So I spent 18hours at the SFO airport. My layover in Denver then was 9hours. By the time I got to Phoenix I have been travelling over 29hours. On top of it all I was charged for my baggage as well as my backpack

SFO
DEN
Okay 4.0

The fact that every time I fly frontier, there is a delay

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