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

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Denver International to San Francisco Flight Information

Avg. Flight Duration 2h 40m
Flights Arrive in San Francisco
Flights Depart from Denver International
Flight Price $107
Distance 965 miles
Airlines Frontier, United Airlines

Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
10%
expected price increase
Average Price:
$201
(avg. price over the last 2 weeks)
Good Deal:
$123
or less (round trip)

When to Book Flights from Denver International to San Francisco

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 $123 or less.
The cheapest flight from Denver International to San Francisco was found 24 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 June, July and August. The cheapest month to fly is January.
Morning departure is around 22% 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 Denver International to San Francisco Flights

How long does a flight from Denver International to San Francisco take?
An average nonstop flight takes 2h 38m, covering a distance of 965 miles.
How many flights are there between Denver International and San Francisco?
There are 985 (nonstop) flights between Denver International and San Francisco per week, averaging 143 per day.
Which airlines provide the cheapest flights from Denver International to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($107) and United Airlines ($132)
Do I need a passport to fly between Denver International and San Francisco?
No.
Which airlines fly most frequently between Denver International and San Francisco?
Air Canada (33 times daily), Air New Zealand (33 times daily), United Airlines (32 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Denver International to San Francisco?
For Denver International to San Francisco, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Francisco back to Denver International, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

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

Airports
Origin
Denver
$107
only
$107
Destination
San Francisco
$107
only
$107
Wed, Jan 9
DEN
Denver International
SFO
San Francisco
2h 47m
Tue, Jan 15
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
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

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

DEN
SFO
Mediocre 2.0

Nothing

Everything

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

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.

Sat, Dec 1
DEN
Denver International
SFO
San Francisco
2h 44m
Wed, Dec 5
SFO
San Francisco
DEN
Denver International
2h 38m
Trip: 5 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
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
Excellent 10.0

Food was great

DEN
SFO
Excellent 10.0

Boarding group is getting huge!!!

DEN
SFO
Excellent 10.0

On time!

DEN
SFO
Good 6.6

Cool crew

Delayed flight

Sat, Nov 3
DEN
Denver International
SFO
San Francisco
2h 48m
Tue, Nov 6
SFO
San Francisco
DEN
Denver International
2h 35m
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
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
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

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
Mediocre 3.6

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

Wed, Nov 28
DEN
Denver International
SFO
San Francisco
2h 54m
Mon, Dec 3
SFO
San Francisco
DEN
Denver International
2h 35m
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 2.6

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

DEN
SFO
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

DEN
SFO
Mediocre 3.6

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

Tue, Dec 4
DEN
Denver International
SFO
San Francisco
2h 54m
Tue, Dec 11
SFO
San Francisco
DEN
Denver International
2h 35m
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 2.0

Nothing

Everything

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
Okay 4.0

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

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.

Mon, Dec 10
DEN
Denver International
SFO
San Francisco
2h 44m
Wed, Dec 12
SFO
San Francisco
DEN
Denver International
2h 35m
Trip: 3 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
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

Food was great

DEN
SFO
Excellent 8.0

The delayed flights and neck pillows.

DEN
SFO
Excellent 8.6

Good flight with no issues.

No complaints

Sat, Oct 27
DEN
Denver International
SFO
San Francisco
2h 48m
Mon, Oct 29
SFO
San Francisco
DEN
Denver International
2h 28m
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

Nothing

Everything

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 2.6

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

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.

Thu, Apr 11
DEN
Denver International
SFO
San Francisco
2h 45m
Mon, Apr 15
SFO
San Francisco
DEN
Denver International
2h 32m
Trip: 5 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 10.0

Boarding group is getting huge!!!

DEN
SFO
Okay 5.3

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

DEN
SFO
Mediocre 2.0

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

DEN
SFO
Good 6.6

Hold time on tarmac. Over an hour. In a hurry to board people. If they knew they had a delay due to weather they might have done some better planning

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.

Fri, Oct 26
DEN
Denver International
SFO
San Francisco
2h 48m
Wed, Oct 31
SFO
San Francisco
DEN
Denver International
2h 30m
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 2.6

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.

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.

Fri, Oct 26
DEN
Denver International
SFO
San Francisco
2h 38m
Sat, Oct 27
SFO
San Francisco
DEN
Denver International
2h 28m
Trip: 2 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
Okay 5.3

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

DEN
SFO
Excellent 10.0

On time!

DEN
SFO
Okay 5.3

Got an aisle seat

Plane was late. No Wi-Fi.

DEN
SFO
Excellent 8.0

The delayed flights and neck pillows.

DEN
SFO
Good 6.6

Hold time on tarmac. Over an hour. In a hurry to board people. If they knew they had a delay due to weather they might have done some better planning

Tue, Jan 29
DEN
Denver International
SFO
San Francisco
2h 47m
Thu, Feb 7
SFO
San Francisco
DEN
Denver International
2h 31m
Trip: 10 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 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
Good 6.0

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

DEN
SFO
Mediocre 3.6

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

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
Okay 4.0

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

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
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
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

DEN
SFO
Mediocre 2.0

Nothing

Everything

DEN
SFO
Okay 4.0

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

Sat, Oct 27
DEN
Denver International
SFO
San Francisco
2h 42m
Mon, Oct 29
SFO
San Francisco
DEN
Denver International
2h 28m
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 3.6

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

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 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 2.0

Nothing

Everything

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 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
Good 6.0

THe passengers were well behave during and polite

The 2 hour flight delay

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

Nothing

Everything

Wed, Feb 13
DEN
Denver International
SFO
San Francisco
2h 47m
Sat, Feb 16
SFO
San Francisco
DEN
Denver International
2h 35m
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
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
Good 6.0

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

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.

Fri, Nov 16
DEN
Denver International
SFO
San Francisco
2h 53m
Sat, Nov 17
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
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
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!!!!!

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