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

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San Francisco to Denver Flight Information

Avg. Flight Duration 2h 43m
Flights Arrive in Denver International
Flights Depart from San Francisco
Flight Price $97
Distance 965 miles
Airlines Frontier, United Airlines, Delta

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
November
Most popular time to fly
11%
expected price increase
Average Price:
$187
(avg. price over the last 2 weeks)
Good Deal:
$118
or less (round trip)

When to Book Flights from San Francisco to Denver

Estimated round-trip price
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 $118 or less.
The cheapest flight from San Francisco to Denver was found 33 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 October, November and December. The cheapest month to fly is January.
Morning departure is around 8% cheaper 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 Flights

How long does a flight from San Francisco to Denver take?
An average nonstop flight takes 2h 25m, covering a distance of 965 miles.
How many flights are there between San Francisco and Denver?
There are 639 (nonstop) flights between San Francisco and Denver per week, averaging 96 per day.
Which airlines provide the cheapest flights from San Francisco to Denver?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($97), United Airlines ($132) and Delta ($181).
Do I need a passport to fly between San Francisco and Denver?
No.
Which airlines fly most frequently between San Francisco and Denver?
United Airlines (24 times daily), Air New Zealand (23 times daily), Air Canada (22 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Denver?
For San Francisco to Denver, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Denver back to San Francisco, the best deals are generally found on Saturday, with Friday being the most expensive.
Which airports will I be using when flying from San Francisco to Denver?
When flying out of San Francisco you will be using San Francisco, often referred to as San Francisco Airport. You will be landing at Denver International, also known as Denver Airport.

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

Airports
Origin
San Francisco
$97
only
$97
Destination
Denver
$97
only
$97
Tue, Jan 22
SFO
San Francisco
DEN
Denver International
2h 35m
Tue, Jan 29
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 8 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: 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

Pros: 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

Cons: 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

Cons: Flight crew were rude.

SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

Wed, May 8
SFO
San Francisco
DEN
Denver International
2h 27m
Tue, May 14
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 195 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Excellent 10.0

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

SFO
DEN
Good 6.0

Pros: Staff was nice!

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

SFO
DEN
Mediocre 3.0

Cons: 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
Okay 4.3

Cons: Seat could not recline and sat next to a fat person who took over my armrest and and personal space. I got sick on this flight because of everything and I never got sick on a flight before flying United

SFO
DEN
Good 7.0

Pros: Smooth flight all the way through

Cons: United didn't have their act together in Denver. Waiting on the tarmac for the gate to be disoccupied, 40 minutes and counting. When the entire terminal B is United, you'd think they'd have an open gate that can be used for a 757...

Thu, Apr 18
SFO
San Francisco
DEN
Denver International
6h 00m
Wed, Apr 24
DEN
Denver International
SFO
San Francisco
2h 49m
Trip: 7 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 22,464 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
BKK
ICN
Excellent 10.0

Cons: All was good

BOM
AMS
Excellent 10.0

Pros: Crew - Usual pleasant Dutch hospitality. Aircraft: Clean and nice Seats: Reasonable leg room , big Monitor easy operation. Meal: Outstanding personalized special meal requested. Served in each leg of my journey.

MIA
LGA
Excellent 8.3

Pros: Arrived on time and smooth flight though it was completely full

LAX
CDG
Excellent 8.0

Pros: The food and drinks on this Delta flight was much better than when I flew with them years ago. I was pleasantly surprised. Good entertainment too. Saw two movies I missed in the theaters...

Cons: The legroom was decent, but I couldn't get comfortable. Pillow or no pillow, the headrest just felt wrong.

ATL
FLL
Excellent 10.0

Cons: Everything was good!

Wed, Feb 6
SFO
San Francisco
DEN
Denver International
2h 43m
Sat, Feb 16
DEN
Denver International
SFO
San Francisco
2h 59m
Trip: 11 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

SFO
DEN
Mediocre 2.0

Cons: 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

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

SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

Wed, Mar 6
SFO
San Francisco
DEN
Denver International
2h 48m
Wed, Mar 13
DEN
Denver International
SFO
San Francisco
2h 57m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

SFO
DEN
Okay 4.0

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

SFO
DEN
Okay 5.6

Pros: Low entry fare

Cons: 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 2.0

Cons: 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 4.3

Pros: the price

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

Tue, Feb 5
SFO
San Francisco
DEN
Denver International
2h 37m
Mon, Feb 11
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 3.6

Pros: On time

Cons: Small tight seats no recline nopocket

SFO
DEN
Mediocre 2.0

Cons: Flight crew were rude.

SFO
DEN
Mediocre 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

SFO
DEN
Okay 4.0

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

Thu, May 2
SFO
San Francisco
DEN
Denver International
2h 35m
Sat, May 4
DEN
Denver International
SFO
San Francisco
2h 43m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 195 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Good 7.0

Pros: 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.

Cons: 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
Okay 4.6

Pros: Nothing

Cons: 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
Okay 4.3

Cons: Seat could not recline and sat next to a fat person who took over my armrest and and personal space. I got sick on this flight because of everything and I never got sick on a flight before flying United

SFO
DEN
Excellent 9.3

Pros: The flight was on time! That’s very important to me and I appreciate it when my time is valued.

SFO
DEN
Good 6.0

Pros: Staff was nice!

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

Mon, Jan 21
SFO
San Francisco
DEN
Denver International
2h 35m
Wed, Jan 23
DEN
Denver International
SFO
San Francisco
2h 56m
Trip: 3 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Pros: 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

Cons: 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

Pros: On time

Cons: Small tight seats no recline nopocket

SFO
DEN
Mediocre 2.0

Cons: 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
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

Thu, Apr 25
SFO
San Francisco
DEN
Denver International
7h 27m
Sun, Apr 28
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 22,464 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
CMH
LAX
Excellent 10.0

Pros: Delta never ceases to amaze me. The flight was perfect!

Cons: There’s nothing I can think of.

AMS
IAH
Excellent 10.0

Pros: Excellent hospitality I asked for a cup of coffee at an odd time, the attendant went out of his way to brew fresh pot and served me, instead of just saying "Sorry sir, we don't have any coffee at this time...."

ICN
ATL
Excellent 10.0

Cons: All was good

JFK
BCN
Excellent 8.6

Pros: Good food, entertainment and Delta Comfort section worth the extra cost.

Cons: Boarding at JFK a nightmare.

LAX
ATL
Mediocre 2.0

Cons: ... on top of that I kindly requested to speak with a supervisor and i was denied it. As a customer I deserved that. I would a ticket with Aerolineas and nowhere it said it was delta. I followed the baggage allowance explained on kayak website and on Aerolineas Argentinas. I took a bicycle which is free and i pay $100 to packed it as Aerolineas wanted. When I arrived it was a Delta flight and they told they don't allow bicycles and that i had to play $150. Aerolineas website and kayak clearly says that bicycles were free on my flight. I show the agent my ticket and that no where it said delta to consider what he was saying since it is an alliance but i was not informed about it. He said no and after wait there for a while before boarding i kindly ask to speak with a supervisor and the denied it and disappeared. I request a refund of my fee to you for providing incorrect information.

Mon, Jul 1
SFO
San Francisco
DEN
Denver International
2h 25m
Tue, Jul 9
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 195 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Okay 4.3

Cons: Seat could not recline and sat next to a fat person who took over my armrest and and personal space. I got sick on this flight because of everything and I never got sick on a flight before flying United

SFO
DEN
Excellent 9.3

Pros: The flight was on time! That’s very important to me and I appreciate it when my time is valued.

SFO
DEN
Mediocre 3.0

Pros: It was a quick flight.

Cons: They ran out of baggage space quickly. United needs to police bag sizes more. It’s not fair that people boarding the plane in the second half should have to check a bag because the first half of people brought on way oversized carry on bags and took up more than their fair share of space.

SFO
DEN
Okay 4.6

Pros: Nothing

Cons: 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
Excellent 10.0

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

Tue, Apr 30
SFO
San Francisco
DEN
Denver International
2h 34m
Sat, May 11
DEN
Denver International
SFO
San Francisco
2h 43m
Trip: 12 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Mediocre 2.0

Cons: Flight crew were rude.

SFO
DEN
Mediocre 2.0

Pros: 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

Cons: 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

Pros: On time

Cons: Small tight seats no recline nopocket

Fri, Mar 1
SFO
San Francisco
DEN
Denver International
2h 48m
Wed, Mar 6
DEN
Denver International
SFO
San Francisco
2h 57m
Trip: 6 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

SFO
DEN
Mediocre 3.3

Pros: The flight attendents were wonderful, funny, and nice.

Cons: 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

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Mediocre 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

Fri, Mar 8
SFO
San Francisco
DEN
Denver International
7h 24m
Mon, Mar 11
DEN
Denver International
SFO
San Francisco
7h 32m
Trip: 3 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 22,464 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
JFK
BCN
Excellent 8.6

Pros: Good food, entertainment and Delta Comfort section worth the extra cost.

Cons: Boarding at JFK a nightmare.

CMH
LAX
Excellent 10.0

Pros: Delta never ceases to amaze me. The flight was perfect!

Cons: There’s nothing I can think of.

LAX
CDG
Excellent 8.0

Pros: The food and drinks on this Delta flight was much better than when I flew with them years ago. I was pleasantly surprised. Good entertainment too. Saw two movies I missed in the theaters...

Cons: The legroom was decent, but I couldn't get comfortable. Pillow or no pillow, the headrest just felt wrong.

DEN
JFK
Excellent 9.3

Pros: Staff from Check in to aircraft very pleasant. Snack choice in Coach impressive.

MIA
LGA
Excellent 8.3

Pros: Arrived on time and smooth flight though it was completely full

Tue, Jun 11
SFO
San Francisco
DEN
Denver International
2h 39m
Sat, Jun 15
DEN
Denver International
SFO
San Francisco
2h 45m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: 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

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

SFO
DEN
Mediocre 2.0

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

SFO
DEN
Mediocre 2.0

Cons: Flight crew were rude.

Sat, Jun 22
SFO
San Francisco
DEN
Denver International
4h 02m
Tue, Jun 25
DEN
Denver International
SFO
San Francisco
4h 47m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 22,464 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
LAX
CDG
Excellent 8.0

Pros: The food and drinks on this Delta flight was much better than when I flew with them years ago. I was pleasantly surprised. Good entertainment too. Saw two movies I missed in the theaters...

Cons: The legroom was decent, but I couldn't get comfortable. Pillow or no pillow, the headrest just felt wrong.

DEN
JFK
Excellent 9.3

Pros: Staff from Check in to aircraft very pleasant. Snack choice in Coach impressive.

JFK
BCN
Excellent 8.6

Pros: Good food, entertainment and Delta Comfort section worth the extra cost.

Cons: Boarding at JFK a nightmare.

CMH
LAX
Excellent 10.0

Pros: Delta never ceases to amaze me. The flight was perfect!

Cons: There’s nothing I can think of.

BOM
AMS
Excellent 10.0

Pros: Crew - Usual pleasant Dutch hospitality. Aircraft: Clean and nice Seats: Reasonable leg room , big Monitor easy operation. Meal: Outstanding personalized special meal requested. Served in each leg of my journey.

Mon, Apr 29
SFO
San Francisco
DEN
Denver International
2h 34m
Tue, May 7
DEN
Denver International
SFO
San Francisco
7h 15m
Trip: 9 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Okay 4.0

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

SFO
DEN
Mediocre 2.0

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

SFO
DEN
Okay 5.6

Pros: Low entry fare

Cons: 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, Jul 30
SFO
San Francisco
DEN
Denver International
2h 39m
Mon, Aug 5
DEN
Denver International
SFO
San Francisco
2h 56m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Mediocre 2.0

Pros: 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

Cons: 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

Pros: Low entry fare

Cons: 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 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Mediocre 3.6

Pros: On time

Cons: Small tight seats no recline nopocket

Tue, Jun 11
SFO
San Francisco
DEN
Denver International
2h 34m
Mon, Jun 17
DEN
Denver International
SFO
San Francisco
2h 43m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Mediocre 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Mediocre 3.3

Pros: The flight attendents were wonderful, funny, and nice.

Cons: 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

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Mediocre 3.3

Pros: Crew were very nice

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

Sun, Jun 9
SFO
San Francisco
DEN
Denver International
2h 41m
Sat, Jun 15
DEN
Denver International
SFO
San Francisco
2h 43m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Mediocre 2.0

Pros: 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

Cons: 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 4.3

Pros: the price

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

SFO
DEN
Mediocre 2.0

Cons: Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600.

SFO
DEN
Mediocre 3.6

Pros: On time

Cons: Small tight seats no recline nopocket

Fri, Jan 25
SFO
San Francisco
DEN
Denver International
2h 42m
Sun, Jan 27
DEN
Denver International
SFO
San Francisco
2h 47m
Trip: 3 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 651 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.3

Pros: the price

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

SFO
DEN
Mediocre 3.3

Pros: The flight attendents were wonderful, funny, and nice.

Cons: 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 5.6

Pros: Low entry fare

Cons: 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 2.0

Cons: Negative leg room, Hugh bag fees that were not stated in the original purchase

SFO
DEN
Good 6.3

Pros: The crew from checking too deplaning were incredible. My husband is disabled and we were well taken care of. Thank you.

Cons: Not having a seat that reclines at all is really hard. I miss that, along with any complimentary food. There is flexibility in choosing seat, bags, & boarding but the price of each is a bit crazy.

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