$63 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 7/15. 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

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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Flights Deals

Best Colorado Flight Deals from San Francisco

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$95
Aspen
Aspen1 stop$229
Grand Junction
Grand Junction1 stop$223
Durango
Durango1 stop$285
Montrose
Montrose1 stop$222
Hayden
Hayden1 stop$359
Gunnison
Gunnison1 stop$478
Cortez
Cortez1 stop$474
Vail
Vail1 stop$296
Denver
Denvernonstop$95
Aspen
Aspen1 stop$229
Grand Junction
Grand Junction1 stop$223
Durango
Durango1 stop$285
Montrose
Montrose1 stop$222
Hayden
Hayden1 stop$359
Gunnison
Gunnison1 stop$478
Cortez
Cortez1 stop$474
Vail
Vail1 stop$296

Cheap Flights from San Francisco to Colorado

 
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

Fri, Aug 15 - Thu, Aug 21
Frontier Logo
6:37 am - 10:17 amSFO-DEN
2h 40mnonstop
Frontier Logo
9:45 am - 11:29 amDEN-SFO
2h 44mnonstop
$95Frontier
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Sat, Jul 12 - Sat, Jul 19
Frontier Logo
6:37 am - 10:17 amSFO-DEN
2h 40mnonstop
Frontier Logo
9:36 pm - 11:25 pmDEN-SFO
2h 49mnonstop
$103Frontier
Find Deal
Thu, Aug 7 - Mon, Aug 11
Southwest Logo
5:30 am - 8:55 amSFO-DEN
2h 25mnonstop
Southwest Logo
9:35 pm - 11:10 pmDEN-SFO
2h 35mnonstop
$157Southwest
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Thu, Aug 7 - Sat, Aug 9
United Airlines Logo
6:30 am - 10:10 amSFO-DEN
2h 40mnonstop
United Airlines Logo
5:00 am - 6:42 amDEN-SFO
2h 42mnonstop
$167United Airlines
Find Deal
Thu, Aug 7 - Mon, Aug 11
American Airlines Logo
3:21 pm - 10:07 pmSFO-DEN
5h 46m1 stop
American Airlines Logo
2:35 pm - 8:01 pmDEN-SFO
6h 26m1 stop
$177American Airlines
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Wed, Aug 20 - Mon, Aug 25
American Airlines Logo
11:21 am - 5:29 pmSFO-DEN
5h 08m1 stop
American Airlines Logo
11:59 am - 6:54 pmDEN-SFO
7h 55m1 stop
$181American Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
Southwest Logo
11:30 am - 6:40 pmSFO-DEN
6h 10m1 stop
Southwest Logo
7:55 pm - 9:35 pmDEN-SFO
2h 40mnonstop
$201Southwest
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Wed, Jul 16 - Sat, Jul 19
Delta Logo
10:55 am - 6:17 pmSFO-DEN
6h 22m1 stop
Delta Logo
6:10 pm - 10:51 pmDEN-SFO
5h 41m1 stop
$217Delta
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Tue, Aug 5 - Mon, Aug 11
Delta Logo
12:50 am - 9:59 amSFO-COS
8h 09m1 stop
Delta Logo
5:55 pm - 11:48 pmCOS-SFO
6h 53m1 stop
$217Delta
Find Deal
Thu, Nov 13 - Sun, Nov 16
United Airlines Logo
2:49 pm - 8:20 pmSFO-MTJ
4h 31m1 stop
United Airlines Logo
7:15 am - 11:55 amMTJ-SFO
5h 40m1 stop
$229United Airlines
Find Deal
Useful Info

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.

What is the cheapest San Francisco to Colorado flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Francisco to Colorado.

The cheapest ticket to Colorado from San Francisco found in the last 72 hours was to Grand Junction, at $102 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 $138.

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 1 stop layover the cheapest option at $668 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 January, when tickets cost $190 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $277 and $263 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 Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Colorado, Thursday is the cheapest day to fly and Sunday 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. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$63
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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.

  • 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 $246 on average. Morning departures are around 5% 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 $357.

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 $137 one-way - $243 round-trip

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 4278 reviews
8.0Comfort
7.1Food
8.6Crew
7.6Entertainment
8.2Boarding
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

WiFi on the flight was not working. Thus, entertainment options were limited.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

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.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

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.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

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.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

While booking it was not obvious that I had to pay for carryon. Realized it only during check-in. Overall, meh!

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

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