Low season | January |
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High season | July |
Cheapest flight | $28 |
Find which airlines fly direct from San Francisco Airport to Denver Intl Airport, which days they fly and book direct flights.
Nonstop departures
Monday
ANA, Air Canada, Air New Zealand, +8 more
ANA, Air Canada, +9 more
7
8
Tuesday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
Wednesday
ANA, Air Canada, Air China, +9 more
ANA, Air Canada, +10 more
8
9
Thursday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
Friday
ANA, Air Canada, Air New Zealand, +8 more
ANA, Air Canada, +9 more
7
8
Saturday
ANA, Air Canada, Air China, +8 more
ANA, Air Canada, +9 more
7
8
Sunday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
Nonstop returns
Monday
ANA, Air Canada, Air New Zealand, +8 more
ANA, Air Canada, +9 more
7
8
Tuesday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
Wednesday
ANA, Air Canada, Air China, +9 more
ANA, Air Canada, +10 more
8
9
Thursday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
Friday
ANA, Air Canada, Air New Zealand, +8 more
ANA, Air Canada, +9 more
7
8
Saturday
ANA, Air Canada, Air China, +8 more
ANA, Air Canada, +9 more
7
8
Sunday
ANA, Air Canada, Air New Zealand, +7 more
ANA, Air Canada, +8 more
6
7
I don't understand why passengers are frequently told that they must check their carry-on luggage due to the full flight and we board and find there are multiple empty overhead cabins with space for our carry-on. Crew should be more accurate in their assessment of the space (they have radios and I assumed they were in communication with a crew member on the plan who could tell them that the spaces were full or that there were remaining spaces). We were told in no uncertain terms that any remaining passengers yet to board had to check their carry on because no space remained on the plane, but there were multiple spaces available (including some that were completely empty) when we boarded. As someone who travels with things I must have with me, I do not appreciate this misinformation which causes me delay because I have to wait at baggage claim to get my small carry-on.
I don't understand why passengers are frequently told that they must check their carry-on luggage due to the full flight and we board and find there are multiple empty overhead cabins with space for our carry-on. Crew should be more accurate in their assessment of the space (they have radios and I assumed they were in communication with a crew member on the plan who could tell them that the spaces were full or that there were remaining spaces). We were told in no uncertain terms that any remaining passengers yet to board had to check their carry on because no space remained on the plane, but there were multiple spaces available (including some that were completely empty) when we boarded. As someone who travels with things I must have with me, I do not appreciate this misinformation which causes me delay because I have to wait at baggage claim to get my small carry-on.
If Alaska Air is going to partner with other airlines, then it has to make the transition to the connecting flight better, especially if Alaska Air is the one that is running late. When I realized our 30 minutes of lateness due to weather was going to make getting to my connecting flight home more difficult ,I would have expected more from the crew than blank stares and "sorry". My son and I had 20 minutes to get from Gate E to the end of Gate K in the Chicago airport. My 50+ year-old body had to sprint and yell to get through the throngs and have any chance of arriving to the gate on time. In addition, the seats I had chosen when I purchased the connecting flight were changed so that my son and I placed in the last rows next to the bathrooms and were separated. There needs to be better communication between the airlines if one is going to be late. The thought of not making it home on time (we still had an 1.5 hour drive to get there) was stressful and unnecessary.
On time. Seats were comfortable. Staff was great. The plane was freezing cold! (And I prefer it to be cold, but it was freezing!) And they only offered water or juice. But overall, would fly again!
They had all the passengers running around the airport as they kept changing the gate (from B7 to C1 to B16). Then they were saying the flight would be delayed and then they immediately boarded it, almost standing passengers who'd wandered off thinking it was delayed.
Good and easy. Seats are a bit crammed and plane was small.
Be prepared for departure delays at SFO while the runways are under construction. No fault of the airlines, so be flexible. Alaska is my favorite air line but needs to pay flight attendants for all the time they're at work, not just when in the air.
Crew was great snacks could be approved upon. Healthier options
Everything was great but there were no entertainment options available.
Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.
The plane had to sit on the tarmac for 45 minutes once it had landed. Not Alaska’s fault.
My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.
There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.
Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!
I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.
There was a loud squeaky sound the whole time we were flying.
I didn’t not like that I could not select my seat and ended up with the worse seat.
The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!
The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.
Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.
Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.
There were issues with the first segment but what really bothered me overall is that you rebooked me and put me in a seat away from my wife and then put her in another booking or boarding group. I don't like having to monitor every little thing you guys do in order to get what I paid for in the first place.
Delays!!! Serious delays. I was told by a member of staff in LGA that I would miss my DEN to LAX flight connection, so I was put on a later flight. Due to delays I would have been able to have made my original flight, where I was sat in business class - seat 1A: I was put on my original flight but bumped from business - 1A to economy 33C. I want a refund for paying business class but only flying economy
Miserable. Active military on orders turned away from Lounge because not in uniform. This is completely contrary to United’s online lounge access policy. Sad that employees aren’t trained better. This is not the United Airlines my parents used to regularly fly with.
Too many canceled flights and kept my wife and I separated on alternate flights. We did not fly out of Denver. We paid a lot of money for the seats we wanted and now that money is gone and we did not sit together. That being said, the many agents were very friendly and did everything possible to help us.
3.5 hour delay known 12-16 hours before departure $15 meal vouchers which did not even cover cost of sandwich. Unable to reach agent for 1.5 hours, only then to be informed any rerouting to my destination would cost an additional $1000. Finally got rebooked on a 7.5 layover in Denver only to find out my original connecting flight was also delayed so I stood by and got on my original connection arriving only 3 hours late instead of 5 hours late. Overall journey was unnecessarily stressful and lenngthy!
When I got our tickets, my husband and I were easily able to get seats together (including a window seat). When we checked in at the airport all the seats were reset and we had to pick new ones, so we couldn’t sit together because there were only middle seats! Ugh that’s the worst. We were back so far we had to check our carry ons which was annoying because I bring an expensive camera that I don’t/cant check so I had to reorganize my items. Once we were seated on the plane we had to wait an hour to take off and they said there was some weather/air traffic in Denver but it was unclear. The lady I sat next to complained that our seats didn’t go back and we both got free complimentary snack boxes which were quite good. I wasn’t going to say anything about the seats, they were the typical uncomfortable kind. It would have been fine if the 2 hr flight hadn’t turned into 3 hrs. Not the best flight but also not the worst.
Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.
Not worth the price of premium class ticket paid, felt more like steerage.
The Wi-Fi was unavailable on this flight for some reason.
This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.
I did not enjoy continuously being lied to about the amount of time we would circle Chicago before deciding to redirect to Milwaukee. Then the amount of time we would sit on the ground in Milwaukee waiting for gas, or to take off again. Or the amount of time it would then take to get to Chicago again, or sit on the runway waiting for a gate. The whole time continuously hopefully we would make our connecting flight that kept getting delayed as well. Only to scramble and miss it. Enough with the BS. Tell me the truth. "Sorry, things are backed up and your probably not going to make your flight. You should rebook on the next flight now rather than wait." You'll never hear those words from an airline. Speaking of which. If the flight has been redirected and/or is seriously delayed, how about making the WiFi free for everyone so they get to rebooking and reserving hotel rooms while still in the air. You've inconvenienced me already and now you want me to pay $20 for Internet so I can try to make other plans. Absolutely disgusting!
Excellent. Attendants served preflight drinks and were courteous and nice.
It was great! It’s been awhile since I’ve flown American but this most recent experience reminded me how much I enjoy flying American. Organized. Informative. Efficient. Friendly. Can’t ask for much more, except my luggage got dinged up a bit. But that could have been the airport.
It was the worst experience ever. Cabin temperature cold, for which they did not have any blankets upon my asking. We paid $125 extra for each passenger to get extra space sits; the sits were ridiculously small, tight, and uncomfortable! The flight attendant dropped ice on me and my sister! All in all, American Airlines deserves below zero!
The flight was delayed two hours, with no information as to why. The gate also changed several times which was aggravating. Would not fly through DFW again.
The inability to be flexible when you need to change a Basic Economy flight, when your company demands you book through a third party, causes raw feelings about the whole experience. A major airline should realize business and personal plans change all the time. I must save my company money on travel. Even if you have to charge me for the change, I get it. But being so rigid with a policy is not the best customer service.
WiFi was down so no entertainment and I could not work either. The flight was Very turbulent at the end (the last 20 min felt like an eternity) I appreciated the pilot for getting us there safely. The flight attending in first class was kind and attentive to everyone.
The gate crew did try to help, however they lacked the information as to whether the flight will operate or not. Being delayed 6 hours and in a limbo on whether the flight will operate or not is not fun. The airline having staffing issues is not encouraging at all.
From check-in staff to in-flight staff, everyone was wonderfully kind
The A321(?) model of the flight for 5+hrs has no seat back screens. Getting the american airlines wifi experience to watch movies on your own devices is not the same.
The flight crew and flight attendants are poorly trained and demonstrate poor professionalism. They have a sloppy appearance and communicate with patrons poorly. It is embarrassing for them to be representatives of an airline and for them to be called professionals.
The flight attendence were extremely rude and I am disabled
Never offer anything to drink ☹️ Flight delayed gate moved poor communication
Frontier charges 25 for the service of checking in and another 79 for a carry on. Will not take this janky air carrier again.
One gate agent in Sioux Falls ruined it for a few people on the flight. It was the usual, that personal item is too large, you are going to have to pay $100 to get it on the flight. One family with a baby were told that they had to have a passport for the baby to get on the flight. Also a Sheriff's Deputy needed to go on the airplane to return a lost cell phone to a minor on the flight. The gate agent would NOT let him go on without a boarding pass. I don't know who this moron was, but the sooner Frontier moves him where he can't interact with people, the better off they will be. Let's just say the deputy did the job that he needed to do and returned the phone to the minor on the plane, even with argument from a gate agent that thought he had way more power than he actually does. Very IRRITATING individual.
They never updated the boarding pass on their apps to show their delay
I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.
9 hours of delay!! Was not able to check my luggage that I paid for!!!
Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.
The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.
San Francisco (SFO)United States
Denver (DEN)United States
Average price | Average duration | |
---|---|---|
Flights | $738 | 2h 32m |
Trains | $397 | 0h 00m |