
Cheap Flights from San Francisco to Colorado
Cheapest round-trip prices found by our users on KAYAK in the last 5 daysBook Cheap San Francisco to Colorado Plane Tickets
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KAYAK's insights & trends for San Francisco to Colorado flights
Get data-powered insights and trends into flights from San Francisco to Colorado to help you find the cheapest flights, the best time to fly and much more.
How much is a round-trip flight from San Francisco to Colorado?
Flight prices are below average for this route right now.
Flights to Colorado from San Francisco usually cost between $207 and $378 in October.The lowest price found in the past 5 days was $161 on Frontier (Oct 30-Nov 19).
What is the cheapest San Francisco to Colorado flight route?
The cheapest ticket to Colorado from San Francisco found in the last 5 days was to Denver, at $165 round-trip. The most popular route is from San Francisco (SFO) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $165.
What is the cheapest time of day to fly to Colorado?
The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $334 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $461.
Can I save money by flying with a layover from San Francisco to Colorado?
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $411 on average.
What is the cheapest month to fly from San Francisco to Colorado?
The cheapest month for flights from San Francisco to Colorado is January, when tickets cost $274 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $404 and $392 respectively.
What’s the cheapest day of the week to fly from San Francisco to Colorado?
If you are looking for a flight deal from San Francisco to Colorado, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Colorado, Friday is the cheapest day to fly and Monday is the most expensive.
How far in advance should I book a flight from San Francisco to Colorado?
To get a below average price on the flight from San Francisco to Colorado, you should book around 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.
Which airlines fly non-stop between San Francisco and Colorado?
There are 4 airlines that fly nonstop from San Francisco to Colorado. They are: Frontier, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $88 for a round-trip flight to Denver (DEN). On average, Frontier offers the best prices for nonstop flights between San Francisco and Colorado.
Which airlines fly most frequently between San Francisco and Colorado?
San Francisco and Colorado are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (90 flights per week), Air New Zealand (83 flights per week), and Air Canada (76 flights per week).
How long does a flight from San Francisco to Colorado take?
The duration of a flight to Colorado depends on your arrival airport. The shortest routes to Colorado from San Francisco are to Aspen, which takes 2h 24m, Montrose, which takes 2h 25m, and Hayden, which takes 2h 30m.
Which cabin class options are there for flights between San Francisco and Colorado?
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.
What’s the earliest departure time from San Francisco to Colorado?
The earliest flight from San Francisco to Colorado departs at 5:00 am, landing in Denver at 8:37 am.
What’s the latest departure time from San Francisco to Colorado?
If you prefer to fly at night, the latest flight from San Francisco to Colorado jets off at 9:24 pm and lands in Denver at 12:59 am.
Good to know
Low season | January |
|---|---|
High season | June |
Cheapest flight | $91 |
FAQs - booking Colorado flights
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Reviews of the top 5 airlines serving from San Francisco to Colorado
Southwest has been a nightmare. Delayed flights, missed connections, systems down. Never again am I flying southwest.
Southwest has been a nightmare. Delayed flights, missed connections, systems down. Never again am I flying southwest.
I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure
3 hour delay. Had to change plans and was still delayed.
As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.
The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.
The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.
Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.
I used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.
The flight was delayed for almost an hour. We sat on the tarmac. There was no announcement. Not by the pilot or the crew. And for some reason, there was no beverage service, so even though it was a short flight, we had sat on the tarmac and the extra hour delay made me understandably thirsty. Water would’ve been nice if they had offered it. And for the first time, I forgot to bring my own water bottle. Reminder to bring your own water bottle because you never know if you’re going to get a beverage.
It was a new plane with larger overhead bins & charging ports at the seats.
WiFi was a major problem and if it does not work on a 4 hour flight then that lowers the overall experience
The Airline Attendant found us in flight and moved us to seats in the front of economy due to the short time we would have to make our connecting flight. We really appreciated it.
Carmen was an absolute delight on the flight staff! Everyone was lovely and made it a very pleasant flight.
Internet connectivity still seems to be touchy on these flights, making it difficult to rely on it for getting work done.
Crew was absolutely fantastic and we’re so welcoming and friendly ❤️
Flight delayed four separate times. I’m now one hour hours late to landing.
The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.
Awesome! On time flight, early arrival, and a complimentary upgrade!
Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.
Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer
This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.
Sitting in coach even in the larger leg space is extremely uncomfortable and the staff pay no attention.
It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.
Lost one piece of luggage even though I checked in 2.5 hours before the flight
Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms
My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.
No screens or meal options. Freezing cold. Dirty seats. Left late.
Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time
Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.
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.
Little communication with passengers after sitting over 1 hour for a maintenance issue Then we had to deplane- no crew communication Poor gate information after deplaned WiFi would not connect AT ALL
Flight attendant made the flight very enjoyable. He was courteous and gave great care to the passengers
Not good. Flight crew, was not friendly and just shoved stuff at us. Not the way I like to travel.
Aside from the little delay, overall was flight good. Made it safely. Thanks!
Over the course of 7 months of travel, I can count on my hand the number of times the flight has departed on time. Majority of the instances have been related to non-weather reasons. Would not recommend flying this Airline
The plane was spartan, the seats not that comfortable. It was like flying a super low budget airline. They charged for coffee!!! I have never, ever experienced that before.
I had no problems but the changing of planes that I was supposed to be on was confusing. Maybe it would be helpful to let people know your flight changed. Not everyone understands airports or how flying works.
Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.
I was not clear if food was offered or not.
Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week
I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.
They didn’t offer a water, even after I asked
Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.
No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.
I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.
It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.
While booking it was not obvious that I had to pay for carryon. Realized it only during check-in. Overall, meh!
Stop changing gates at sfo. When you are elderly going back for it’s not fun.
The flight attendence were extremely rude and I am disabled
There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.