SFO

Find First Class Flights from Denver to San Francisco

1 adult
1 adult, First, 0 bags

KAYAK searches hundreds of travel sites at once for first class flights from Denver to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Francisco, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Cheap First Class Flight Deals from Denver to San Francisco

 
These are the cheapest deals for flights from Denver to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent first class round-trip flight deals from Denver to San Francisco

Wed, Jul 1 - Tue, Jul 7
United Airlines Logo
5:15 am - 6:53 am
DEN
-
SFO
2h 38mnonstop
United Airlines Logo
6:15 am - 9:59 am
SFO
-
DEN
2h 44mnonstop
$717United Airlines
Wed, Jul 1 - Tue, Jul 7
Delta Logo
5:40 am - 8:56 am
DEN
-
SFO
4h 16m
1 stop
Delta Logo
4:39 pm - 11:52 pm
SFO
-
DEN
6h 13m
1 stop
$727Delta
Sat, Aug 15 - Mon, Aug 17
Delta Logo
1:44 pm - 7:43 pm
DEN
-
SFO
6h 59m
1 stop
Delta Logo
4:55 pm - 11:58 pm
SFO
-
DEN
6h 03m
1 stop
$769Delta
Wed, Jun 17 - Mon, Jun 22
Delta Logo
12:29 pm - 6:58 pm
DEN
-
SFO
7h 29m
1 stop
Delta Logo
5:25 pm - 10:41 pm
SFO
-
DEN
4h 16m
1 stop
$787Delta
Sat, Jun 20 - Tue, Jun 23
United Airlines Logo
9:43 am - 11:25 am
DEN
-
SFO
2h 42mnonstop
United Airlines Logo
9:00 pm - 12:47 am
SFO
-
DEN
2h 47mnonstop
$867United Airlines
Wed, Jun 17 - Sun, Jun 21
Delta Logo
12:29 pm - 6:58 pm
DEN
-
SFO
7h 29m
1 stop
Delta Logo
5:25 pm - 10:41 pm
SFO
-
DEN
4h 16m
1 stop
$878Delta
Thu, Oct 1 - Tue, Oct 6
Alaska Airlines Logo
6:17 am - 10:53 am
DEN
-
SFO
5h 36m
1 stop
Alaska Airlines Logo
7:00 am - 6:02 pm
SFO
-
DEN
10h 02m
2 stops
$882Alaska Airlines
Wed, Jun 17 - Mon, Jun 22
United Airlines Logo
5:20 am - 6:58 am
DEN
-
SFO
2h 38mnonstop
United Airlines Logo
7:56 pm - 11:43 pm
SFO
-
DEN
2h 47mnonstop
$899United Airlines
Wed, Jun 17 - Mon, Jun 22
Delta Logo
5:40 am - 12:08 pm
DEN
-
SFO
7h 28m
1 stop
Delta Logo
4:48 pm - 11:59 pm
SFO
-
DEN
6h 11m
1 stop
$909Delta
Wed, Jun 17 - Sun, Jun 21
Delta Logo
7:00 pm - 11:58 pm
DEN
-
SFO
5h 58m
1 stop
Delta Logo
5:50 am - 11:53 am
SFO
-
DEN
5h 03m
1 stop
$939Delta

Good to Know - First Class Flights from Denver to San Francisco

Low seasonJanuary
Cheapest flight$364
Average price round-trip$716
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly with an average 8% increase in price.
Flight from Denver to San Francisco
(price for this month)

KAYAK’s Insights & Trends for Denver to San Francisco First Class Flights

Get data-powered insights and trends into flights from Denver to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly first class from Denver to San Francisco?

The average price of all flights from Denver to San Francisco clicked on KAYAK for each day over the last 12 months.

Look for departures on Thursday when prices are cheapest and avoid leaving on a Monday, as it's usually the priciest day. When flying back from San Francisco, Wednesday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly First Class from Denver to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for First Class flights from Denver to San Francisco is November, where tickets cost $547 (round-trip) on average. On the other hand, the most expensive months are October and January, where the average cost of round-trip tickets is $1,345 and $1,256 respectively.

Which airlines offer First Class tickets between Denver and San Francisco?

There is 1 airline that flies First Class from Denver to San Francisco: United Airlines.

FAQs for First Class Denver to San Francisco Flights

  • What is the best airline when flying first class between Denver and San Francisco?

    The highest-rated airline by KAYAK users offering first class flights for this route is Southwest, with an overall rating of 8.0.

KAYAK's Tips for Finding Cheap First Class Flights from Denver to San Francisco

  • Look for a flight with a layover if you’re looking to save, as direct first class flights are generally more expensive for the route.

Reviews of the Top 3 Airlines Flying First Class from Denver to San Francisco

 
See real verified KAYAK customer reviews for airlines flying to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Denver to San Francisco. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly first class to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4255 reviews
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
8.6Crew
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Not clean and was told I would get a great seat and it was not great at all

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Everything you need to know for your flight to San Francisco

Cabin class types available on flights from Denver to San Francisco

Cabin classes available on flights from Denver to San Francisco. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.