$91 Find Cheap Flights from San Francisco to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Colorado departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Colorado.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Colorado.
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Flight Deals

Cheap Flights from San Francisco to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$151
Aspen
Aspennonstop$429
Vail
Vail1 stop$349
Grand Junction
Grand Junction1 stop$231
Durango
Durango1 stop$298
Montrose
Montrose1 stop$289
Hayden
Hayden1 stop$350
Gunnison
Gunnison1 stop$351
Telluride
Telluride2 stops$842
Cortez
Cortez1 stop$472
Denver
Denvernonstop$151
Aspen
Aspennonstop$429
Vail
Vail1 stop$349
Grand Junction
Grand Junction1 stop$231
Durango
Durango1 stop$298
Montrose
Montrose1 stop$289
Hayden
Hayden1 stop$350
Gunnison
Gunnison1 stop$351
Telluride
Telluride2 stops$842
Cortez
Cortez1 stop$472

Book Cheap San Francisco to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Colorado that are departing in the next months. 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 round-trip flight deals from San Francisco to Colorado

Mon, May 25 - Tue, Jun 2
Frontier Logo
6:00 am - 9:52 am
SFO
-
DEN
2h 52mnonstop
Frontier Logo
10:29 pm - 12:23 am
DEN
-
SFO
2h 54mnonstop
$151Frontier
Thu, May 28 - Sat, Jun 6
Frontier Logo
6:00 am - 9:52 am
SFO
-
DEN
2h 52mnonstop
Frontier Logo
10:29 pm - 12:23 am
DEN
-
SFO
2h 54mnonstop
$152Frontier
Tue, Sep 15 - Tue, Sep 22
Delta Logo
5:00 pm - 10:29 pm
SFO
-
COS
4h 29m
1 stop
Delta Logo
5:55 pm - 11:52 pm
COS
-
SFO
6h 57m
1 stop
$219Delta
Tue, Jul 14 - Wed, Jul 22
Delta Logo
5:16 pm - 9:50 pm
SFO
-
GJT
3h 34m
1 stop
Delta Logo
6:56 pm - 11:52 pm
GJT
-
SFO
5h 56m
1 stop
$231Delta
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
6:50 am - 12:35 pm
SFO
-
COS
4h 45m
1 stop
Southwest Logo
12:50 pm - 6:20 pm
COS
-
SFO
6h 30m
1 stop
$241Southwest
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
6:50 am - 12:35 pm
SFO
-
COS
4h 45m
1 stop
Southwest Logo
6:20 am - 11:35 am
COS
-
SFO
6h 15m
2 stops
$247Southwest
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
3:52 pm - 9:56 pm
SFO
-
GJT
5h 04m
1 stop
American Airlines Logo
6:54 pm - 10:25 pm
GJT
-
SFO
4h 31m
1 stop
$260American Airlines
Tue, Jun 9 - Sat, Jun 13
United Airlines Logo
6:15 am - 12:31 pm
SFO
-
GJT
5h 16m
1 stop
United Airlines Logo
6:10 pm - 10:56 pm
GJT
-
SFO
5h 46m
1 stop
$262United Airlines
Wed, May 6 - Tue, May 12
United Airlines Logo
2:27 pm - 10:18 pm
SFO
-
GJT
6h 51m
1 stop
United Airlines Logo
6:04 pm - 10:42 pm
GJT
-
SFO
5h 38m
1 stop
$271United Airlines
Tue, May 5 - Sat, May 9
American Airlines Logo
11:15 am - 9:53 pm
SFO
-
GJT
9h 38m
2 stops
American Airlines Logo
11:46 am - 3:25 pm
GJT
-
SFO
4h 39m
1 stop
$276American Airlines
Booking Insights

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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Colorado departing in May.

What is the cheapest San Francisco to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from San Francisco found in the last 72 hours was to Denver, at $143 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 72 hours was $143.

What is the cheapest time of day to fly to Colorado?

The average price for all round-trip flights from San Francisco to Colorado depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $285 on average. Morning departures are around 1% more expensive 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 $421.

Can I save money by flying with a layover from San Francisco to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

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 $457 on average.

What is the cheapest month to fly from San Francisco to Colorado?

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

The cheapest month for flights from San Francisco to Colorado is October, when tickets cost $224 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $312 and $301 respectively.

What’s the cheapest day of the week to fly from San Francisco to Colorado?

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

If you are looking for a flight deal from San Francisco to Colorado, look for departures on Saturdays 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 calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Colorado, you should book around 2 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$91
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from San Francisco to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from San Francisco to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Francisco to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: Denver $150 one-way - $259 round-trip

Reviews of the top 5 airlines serving from San Francisco to Colorado

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Colorado? 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 4327 reviews
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

2.0 MediocreJames, Apr 2026
LAX - MCO
Read more Southwest reviews

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

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.

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

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

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.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

On time departure and early arrival. Flight attendant very nice.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

They didn’t offer a water, even after I asked

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Everything you need to know for your flight from San Francisco to Colorado

Information on your arrival and departure airports