SFO - DEN

Find Cheap Flights from San Francisco to Denver

Round-trip
Economy
San Francisco (SFO)
Denver Intl
Mon 7/22
Mon 7/29
Any month
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San Francisco to Denver Flight Information

Avg. Flight Duration 2h 37m
Flights Arrive in Denver Intl
Flights Depart from San Francisco
Flight Price $122
Distance 965 miles
Airlines United Airlines, Frontier, Delta

Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
November
Most popular time to fly
5%
expected price increase
Average Price:
$237
(avg. price over the last 2 weeks)
Good Deal:
$157
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 $156 or less.
The cheapest flight from San Francisco to Denver was found 34 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 11% 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 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 726 (nonstop) flights between San Francisco and Denver per week, averaging 110 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 United Airlines ($122), Frontier ($137) and Delta ($475).
Do I need a passport to fly between San Francisco and Denver?
No.
Which airlines fly most frequently between San Francisco and Denver?
Air Canada (29 times daily), Air New Zealand (28 times daily), United Airlines (25 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, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Denver back to San Francisco, the best deals are generally found on Tuesday, with Thursday 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 Intl, also known as Denver Airport.

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

Airports
Origin
San Francisco
$122
only
$122
Destination
Denver
$122
only
$122
Mon, Aug 19
SFO
San Francisco
DEN
Denver Intl
2h 25m
Thu, Aug 22
DEN
Denver Intl
SFO
San Francisco
2h 44m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Good 6.0

Cons: Service was horrible.

SFO
DEN
Poor 0.0

Pros: Person on phone who rescheduled my flight was very nice and helpful.

Cons: Flight delay resulted in missing my connecting flight in Denver. Rescheduled flight to fly to Omaha instead. That flight was also delayed twice, and without sufficient notification for me to change flights again. didn't get into Omaha until midnight - over an hour away from my original destination.

SFO
DEN
Mediocre 2.0

Pros: nothing

Cons: united was very rude to me. they charged me twice for the same ticket and never refunded me that money.

SFO
DEN
Good 7.6

Pros: Entertainment

Cons: Weird maple chip things.

SFO
DEN
Excellent 10.0

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

Thu, Sep 12
SFO
San Francisco
DEN
Denver Intl
2h 37m
Wed, Sep 18
DEN
Denver Intl
SFO
San Francisco
2h 52m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Pros: At the check in terminal someone did take my info to refund my flight to denver since it was delayed by 5 hours.

Cons: The flight was delayed five hours so I had to book a flight with another airliner prior to receiving a refund from frontier. Frontiers phone service is horrible. I coul not get a hold of a person to request a refund or book another flight. And the price of the trip does not include carry on baggage or free seat choice. This wa all extra.

SFO
DEN
Mediocre 2.0

Pros: The fact that I almost got home. Almost.

Cons: 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

Cons: Both flights were delayed & the crew didn't work with me at all on getting to my destination that had an important deadline. No effort to reconcile or help me get to my destination, I ended up having to buy a ticket from a different airline to get to where I needed to go and I wasn't even reimbursed for the flight I didnt get onto.

SFO
DEN
Okay 4.0

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

SFO
DEN
Mediocre 3.3

Pros: The price BEFORE I got charged 100$ for carry one and to choose a horrible seat in the back

Cons: Uncomfortable, no entertainment, food, nothing.

Sun, Sep 1
SFO
San Francisco
DEN
Denver Intl
2h 35m
Wed, Sep 4
DEN
Denver Intl
SFO
San Francisco
2h 44m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Excellent 8.0

Pros: The fact that everything went as planned with no delays.

Cons: Nothing

SFO
DEN
Mediocre 3.3

Cons: It was super cold. Miserable.

SFO
DEN
Okay 4.0

Pros: The crew was wonderful

Cons: My flight was severely delayed.

SFO
DEN
Excellent 10.0

Pros: It was great

SFO
DEN
Excellent 9.3

Pros: Efficiency. We left the gate early and arrived even earlier. Seats were comfortable enough for me to fall asleep in, enough legroom too.

Cons: Maybe I missed it, but a little sign on every seat said there was a power outlet between the seat, but I didn't see one.

Fri, Jul 5
SFO
San Francisco
DEN
Denver Intl
2h 26m
Mon, Jul 15
DEN
Denver Intl
SFO
San Francisco
2h 39m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Mediocre 3.6

Pros: Our learned expectations are so low it's hard to be disappointed

Cons: General indifference

SFO
DEN
Excellent 8.0

Pros: Easy & no glitches. Luggage arrived

SFO
DEN
Okay 5.0

Pros: staff were professional

Cons: airline overbooked the flight from SFO to DEN again. every time this happens, this leads to a huge customer disappoint and you lose faithful customers to other airlines, in the hope that the repeated overbooking won't happen again.

SFO
DEN
Excellent 10.0

Pros: It was on time

SFO
DEN
Excellent 10.0

Pros: Left on time, easy flight, fine weather, no problems!

Fri, Jul 5
SFO
San Francisco
DEN
Denver Intl
2h 38m
Sat, Jul 13
DEN
Denver Intl
SFO
San Francisco
2h 31m
Trip: 9 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 3.6

Cons: You have to pay for regular seats that does not recline, And you have to pay for the carry on laugage, the price to check in the bags is more expensive than in any other airline.

SFO
DEN
Good 6.0

Cons: No coffee was available

SFO
DEN
Okay 4.0

Pros: Crew was nice

Cons: Frontier flight delayed and online support was not helpful. Frontier not willing to hold connecting Frontier flight. Had to sprint to make the connection within the two minutes left to board. The seats were also very uncomfortable.

SFO
DEN
Okay 4.3

Cons: I checked in early online the night before my flight only to stand in line for 45-55 minutes to drop off my bag. They also didn't have anyone working the counters until about an hour and a half before my flight departure time. Myself and about 100 others were standing in line for about 20 minutes before anyone showed up to help us check in or take our bags. I was charged a seat fee for both of my flights ( I purchased a round trip ticket) I'm pretty sure that should have been included in my initial ticket purchase. To have a carry on requires an additional fee that is more expensive than it is to check a bag. The website said these charges were to give us the best ticket prices however with all the additional fees it was significantly more expensive than their competitors. I will not fly with Frontier again.

SFO
DEN
Good 6.6

Pros: Great staff, courteous and helpful

Cons: No complementary drinks, no carry-on allowed

Tue, Oct 15
SFO
San Francisco
DEN
Denver Intl
2h 28m
Wed, Oct 16
DEN
Denver Intl
SFO
San Francisco
2h 37m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
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
Excellent 8.0

Cons: Entertainment on the app became unavailable mid flight!

SFO
DEN
Excellent 9.3

Pros: Efficiency. We left the gate early and arrived even earlier. Seats were comfortable enough for me to fall asleep in, enough legroom too.

Cons: Maybe I missed it, but a little sign on every seat said there was a power outlet between the seat, but I didn't see one.

SFO
DEN
Good 6.0

Cons: Flight delayed for 50 minutes, then again for 30 minutes, then again for 20 minutes, etc...

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

Sat, Aug 17
SFO
San Francisco
DEN
Denver Intl
2h 39m
Wed, Aug 21
DEN
Denver Intl
SFO
San Francisco
2h 38m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
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 3.6

Cons: There wasn't any entertainment.

SFO
DEN
Mediocre 2.0

Cons: Flight crew were rude.

SFO
DEN
Mediocre 2.6

Cons: Extra charge for every seat on plane? $40 for carry on or checked baggage? Crew taking six baggage spots forcing passengers to stow bags in rear of plane? Ugh. A new low in air travel.

SFO
DEN
Mediocre 2.0

Pros: Nothing

Cons: Did not once tell me I had to pay for carry on. They charged me for booking a seat in advance.

Tue, Aug 13
SFO
San Francisco
DEN
Denver Intl
2h 28m
Thu, Aug 15
DEN
Denver Intl
SFO
San Francisco
2h 44m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
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...

SFO
DEN
Excellent 8.3

Pros: The food choices were good and the service was excellent, Always kind and responsive to my needs and attentive.

Cons: Boarding could be done by letting people with window seats being seated first, then the middle seats next and finally aisle seats last! That way people would not have to get up from their seats after they have been sitting down to get back up to allow the people in the inner seat to get to their seats a pond boarding the plane after the people in the aisle seat are already sitting!

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
Good 6.6

Pros: A United employee working at the boarding gate who's name was Amy, (I don't know her last name) really did shine in her efforts to assist in getting my luggage and I reunited. Thanks again, Amy!

Cons: The flights were running behind for some reason, but I was too.

SFO
DEN
Okay 4.0

Pros: Got to destination safely

Cons: Don't fit in the seats at all I am 6'7" tall Person in front can't recline And I don't fit at all

Tue, Aug 20
SFO
San Francisco
DEN
Denver Intl
2h 28m
Sat, Aug 24
DEN
Denver Intl
SFO
San Francisco
2h 44m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Mediocre 3.3

Pros: Why's is there to like!!!?

Cons: No blanket.. No pllow

SFO
DEN
Good 7.6

Pros: Entertainment

Cons: Weird maple chip things.

SFO
DEN
Good 6.0

Pros: It got me from a to b

Cons: Being on time, better food service, entertainment usb plug for charging , seat comfort

SFO
DEN
Good 7.6

Pros: Liked United wifi and being able to watch movies to pass the time.

Cons: Perhaps look at getting music added to United wifi

SFO
DEN
Good 6.0

Cons: Service was horrible.

Mon, Nov 4
SFO
San Francisco
DEN
Denver Intl
2h 29m
Sun, Nov 10
DEN
Denver Intl
SFO
San Francisco
2h 54m
Trip: 7 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.6

Pros: Price for flight was good.

Cons: 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 3.6

Cons: Unexplained delay is not ok.

SFO
DEN
Okay 5.0

Pros: The flight was on time.

Cons: Three dollar glass of soda...please!

SFO
DEN
Excellent 10.0

Pros: On time to take off and landed early!

Cons: Bag cost... absurd!

SFO
DEN
Mediocre 2.0

Pros: Paid more to be in row 2 for fast boarding and exiting. Was moved because the two ladies next to be both brought babies which got on for free

Cons: The flight attendant told me if I move that they would take care of the flight. So I moved thinking they were going to refund me. When I asked about the refund she said what she meant was take care of my flight like get me a soda.... soda is alraeady free how the heck does that fix the fact I was booted from the seat I paid for.,.. not happy w frontier... feel tricked

Sat, Dec 21
SFO
San Francisco
DEN
Denver Intl
4h 22m
Thu, Dec 26
DEN
Denver Intl
SFO
San Francisco
2h 46m
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 25,336 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
SGF
ATL
Mediocre 2.0

Pros: Nothing horrible service

Cons: Everything

SAV
ATL
Excellent 10.0

Pros: Don’t wait to much

NRT
ATL
Excellent 10.0

Cons: Bring back the Narita to Minneapolis.

BWI
ATL
Excellent 8.3

Cons: Late departure

CVG
MCO
Excellent 8.3

Pros: Horrible storms kept us in the air for at least an hour past our scheduled landing time. And yet we experienced virtually no turbulence. The pilots did an excellent job of keeping us updated, kept things as smooth as possible with the bad weather and we had plenty of movies and games to choose

Cons: I was charged an extra $100 because my bag was 10lbs overweight. Where is this crazy fee communicated on their website? And why does it have to be so much? I didn't have a way to weigh our bag before we left. I had no idea it was so heavy - ridiculous price.

Fri, Jun 28
SFO
San Francisco
DEN
Denver Intl
2h 45m
Mon, Jul 1
DEN
Denver Intl
SFO
San Francisco
2h 39m
Trip: 4 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Okay 4.3

Cons: I checked in early online the night before my flight only to stand in line for 45-55 minutes to drop off my bag. They also didn't have anyone working the counters until about an hour and a half before my flight departure time. Myself and about 100 others were standing in line for about 20 minutes before anyone showed up to help us check in or take our bags. I was charged a seat fee for both of my flights ( I purchased a round trip ticket) I'm pretty sure that should have been included in my initial ticket purchase. To have a carry on requires an additional fee that is more expensive than it is to check a bag. The website said these charges were to give us the best ticket prices however with all the additional fees it was significantly more expensive than their competitors. I will not fly with Frontier again.

SFO
DEN
Mediocre 3.6

Pros: I got where I needed to be.

Cons: Every time you click to check in, it sends you to booking. You have to switch to landscape view on your phone a few times to get it just right. Then when you do get it, it's 15 questions until you can actually just get your boarding pass. At the departures check in, there's no kiosk so you have to wait in line there too.

SFO
DEN
Mediocre 3.3

Cons: Long wait for luggage Delay in takeoff

SFO
DEN
Mediocre 2.0

Pros: Nothing

Cons: Flight from SFO to DEN was delayed. At check in i expressed concern about missing connecting DEN to PHL red eye (9min window) and was reassured that I "will make the flight." The flight arrived in Denver later than anticipated and the connecting red eye to PHL departed 5mins prior to landing. I was then placed on the next available flight- 5/29 at 6:55pm with arrival to PHL on 5/30 at 1am. No accomandations, re-routing options were given. I then attempted to file a complaint with the airline customer service number twice but both times no complaint was filed. The customer service rep promised to put me on an earlier flight to Trenton and refund my ticket. So I sat on the floor of the airport until ticketing opened at 4am where I was informed that no complaints were filed, I would not be refunded and the Trenton flight was not available. Also requests to retrieve my bag were ignored at the gate. I would have to spend the next 4 hours trying to locate it. I had to be in PHL today for work. I purchased a ticket on southwest.

SFO
DEN
Good 6.6

Pros: Great staff, courteous and helpful

Cons: No complementary drinks, no carry-on allowed

Tue, Jul 30
SFO
San Francisco
DEN
Denver Intl
2h 28m
Sat, Aug 3
DEN
Denver Intl
SFO
San Francisco
2h 31m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Okay 5.0

Pros: staff were professional

Cons: airline overbooked the flight from SFO to DEN again. every time this happens, this leads to a huge customer disappoint and you lose faithful customers to other airlines, in the hope that the repeated overbooking won't happen again.

SFO
DEN
Good 6.0

Pros: First class male flight attendant was AWESOME!

SFO
DEN
Excellent 8.0

Pros: Overall behavior of the officials and creed of the UA.

Cons: Repeated supply of same nature of refreshments in all connecting flights.

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 4.0

Pros: The crew was wonderful

Cons: My flight was severely delayed.

Thu, Jun 27
SFO
San Francisco
DEN
Denver Intl
2h 38m
Sun, Jun 30
DEN
Denver Intl
SFO
San Francisco
2h 40m
Trip: 4 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
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 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
Excellent 8.0

Pros: Efficiency. Food prices were affordable.

Cons: Tight space. Limited bathrooms. $40 for carry on or checked baggage. Seat prices ranged from $5 to over $40. No inflight conveniences.

SFO
DEN
Okay 5.0

Cons: I was told at check in they charge for carry on luggage had to check my bags spent more than if I had bought tickets for a nicer airline

SFO
DEN
Mediocre 3.6

Cons: You have to pay for regular seats that does not recline, And you have to pay for the carry on laugage, the price to check in the bags is more expensive than in any other airline.

Fri, Jun 28
SFO
San Francisco
DEN
Denver Intl
2h 45m
Mon, Jul 1
DEN
Denver Intl
SFO
San Francisco
2h 40m
Trip: 4 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Mediocre 2.0

Cons: Airplane

SFO
DEN
Mediocre 3.3

Cons: Long wait for luggage Delay in takeoff

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: Nothing

Cons: Did not once tell me I had to pay for carry on. They charged me for booking a seat in advance.

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

Tue, Dec 3
SFO
San Francisco
DEN
Denver Intl
2h 30m
Thu, Dec 12
DEN
Denver Intl
SFO
San Francisco
2h 44m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Excellent 9.6

Pros: On time departure, early arrival. Efficient and courteous service, organized boarding process

Cons: Wifi could be cheaper!

SFO
DEN
Okay 5.3

Pros: Seats fit for midgets

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
Mediocre 2.0

Pros: nothing

Cons: united was very rude to me. they charged me twice for the same ticket and never refunded me that money.

SFO
DEN
Good 6.0

Cons: But, after United dragged that poor man from his seat yesterday with a bloody face I will never fly united again.

Thu, Jul 11
SFO
San Francisco
DEN
Denver Intl
2h 32m
Mon, Jul 15
DEN
Denver Intl
SFO
San Francisco
2h 40m
Trip: 5 days
4.9OkayShow reviews
Overall 4.9 Okay
Based on 654 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.9
Entertainment
4.6
Food
4.7
SFO
DEN
Excellent 10.0

Pros: On time to take off and landed early!

Cons: Bag cost... absurd!

SFO
DEN
Okay 4.3

Cons: I checked in early online the night before my flight only to stand in line for 45-55 minutes to drop off my bag. They also didn't have anyone working the counters until about an hour and a half before my flight departure time. Myself and about 100 others were standing in line for about 20 minutes before anyone showed up to help us check in or take our bags. I was charged a seat fee for both of my flights ( I purchased a round trip ticket) I'm pretty sure that should have been included in my initial ticket purchase. To have a carry on requires an additional fee that is more expensive than it is to check a bag. The website said these charges were to give us the best ticket prices however with all the additional fees it was significantly more expensive than their competitors. I will not fly with Frontier again.

SFO
DEN
Good 6.0

Pros: Price, overall experience this trip

Cons: All the extra charges, uncomfortable non recline seats, no entertainment, food service

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 4.6

Cons: They charged for a carry-on. Customers also had to pay for water.

Sat, Nov 23
SFO
San Francisco
DEN
Denver Intl
2h 32m
Thu, Nov 28
DEN
Denver Intl
SFO
San Francisco
2h 46m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Good 7.6

Pros: Entertainment

Cons: Weird maple chip things.

SFO
DEN
Mediocre 2.0

Cons: Our plane was 2 hours late from San Francisco and we missed our flight to Columbia.

SFO
DEN
Good 6.0

Pros: First class male flight attendant was AWESOME!

SFO
DEN
Mediocre 3.0

Pros: Crew was nice.

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

SFO
DEN
Excellent 8.0

Pros: We were on time

Tue, Jul 2
SFO
San Francisco
DEN
Denver Intl
2h 28m
Tue, Jul 9
DEN
Denver Intl
SFO
San Francisco
2h 40m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 204 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SFO
DEN
Good 6.0

Pros: It got me from a to b

Cons: Being on time, better food service, entertainment usb plug for charging , seat comfort

SFO
DEN
Mediocre 2.0

Pros: No incidents, functional, homogeneous, pleasant crew

Cons: Thank you for flying with us- Missing sincerity And service!

SFO
DEN
Excellent 8.0

Pros: Overall behavior of the officials and creed of the UA.

Cons: Repeated supply of same nature of refreshments in all connecting flights.

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...

SFO
DEN
Good 7.3

Pros: Courteous cabin crew.

Cons: I pre-paid $250 to bring my pet, for my extended vacation to visit family, and was careful to book a ticket that allowed me to pre-select my window seat. After I boarded the aircraft, I discovered to my dismay, that my standard sized pet carrier did not fit under the seat in front of me. There was a metal box bolted under the seat, that significantly reduced the size of that space. Having to pay so much extra to bring my pet on board in the cabin, I would have expected United to ensure that my pet carrier would fit under the seat. Based on a previous United flight, I expected to be able to watch a free movie on my smart phone, using the United Wi-Fi entertainment, and my wireless Bluetooth earphones. This aircraft did not offer that service. Instead, there was a screen on the seat back, and a physical headphone jack. I had no way to watch anything, or even follow the aircraft position, without paying extra, and requesting wired headphones. I checked the United website prior to my flight, and saw that they provided Wi-Fi, so I was prepared to take advantage of the free United entertainment, but I was disappointed.

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