$63 Find Cheap Flights from San Francisco Bay Area to Colorado

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Low seasonApril
High seasonJuly
Cheapest flight$63
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from San Francisco to Denver

FAQs for booking flights from San Francisco Bay Area to Colorado

  • How does KAYAK find such low prices on flights from San Francisco Bay Area 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 Bay Area to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco Bay Area 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 Bay Area 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 Bay Area 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 Bay Area 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 Bay Area to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Colorado?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Colorado is Grand Junction Regnl Airport (GJT), with an average flight price of $54.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Friday where round-trip tickets can be as cheap as $300. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $371 on average.

  • 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.

  • What is the cheapest flight to Colorado?

    The cheapest ticket to Colorado from San Francisco Bay Area found in the last 72 hours was to Grand Junction, at $102 round-trip. The most popular route is Oakland (OAK) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $138.

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

    The cheapest month for flights from San Francisco Bay Area to Colorado is April, when tickets cost $366 (return) on average. On the other hand, the most expensive months are October and August, when the average cost of round-trip tickets is $682 and $664 respectively.

  • How far in advance should I book a flight from San Francisco Bay Area to Colorado?

    To get a below average price on the flight from San Francisco Bay Area 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.

  • How long is the flight to Colorado?

    An average nonstop flight from San Francisco Bay Area to Colorado takes 6h 30m, covering a distance of 841 miles. The shortest route is San Francisco (SFO) to Aspen (ASE) with an average flight time of 2h 18m.

  • What are the most popular destinations in Colorado?

    Based on KAYAK flight searches, the most popular destination is Denver (86% of total searches to Colorado). The next most popular destinations are Aspen (4%) and Colorado Springs (3%). Searches for flights to Durango (2%), to Grand Junction (2%) and to Montrose (2%) are also popular.

Top 5 airlines serving from San Francisco Bay Area to Colorado

 
Need help choosing which airline to fly with from San Francisco Bay Area 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
8.6Crew
8.0Comfort
7.1Food
8.2Boarding
7.6Entertainment
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.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

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.

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.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

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.

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.

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.

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?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Book cheap flights from San Francisco Bay Area to Colorado

Recent round-trip flight deals

8/15Fri
nonstopFrontier
2h 40mSFO-DEN
8/21Thu
nonstopFrontier
2h 44mDEN-SFO
$95
7/12Sat
nonstopFrontier
2h 40mSFO-DEN
7/19Sat
nonstopFrontier
2h 49mDEN-SFO
$103
8/7Thu
nonstopSouthwest
2h 25mSFO-DEN
8/11Mon
nonstopSouthwest
2h 35mDEN-SFO
$157
8/7Thu
nonstopUnited Airlines
2h 40mSFO-DEN
8/9Sat
nonstopUnited Airlines
2h 42mDEN-SFO
$167
8/27Wed
nonstopSouthwest
2h 30mOAK-DEN
9/7Sun
nonstopSouthwest
2h 35mDEN-OAK
$177
8/7Thu
1 stopAmerican Airlines
5h 46mSFO-DEN
8/11Mon
1 stopAmerican Airlines
6h 26mDEN-SFO
$177
8/20Wed
1 stopAmerican Airlines
5h 08mSFO-DEN
8/25Mon
1 stopAmerican Airlines
7h 55mDEN-SFO
$181
8/15Fri
nonstopUnited Airlines
2h 32mSJC-DEN
8/19Tue
nonstopUnited Airlines
2h 36mDEN-SJC
$197
7/16Wed
1 stopDelta
6h 25mOAK-DEN
7/19Sat
1 stopDelta
5h 41mDEN-OAK
$217
7/16Wed
1 stopDelta
6h 22mSFO-DEN
7/19Sat
1 stopDelta
5h 41mDEN-SFO
$217

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Recent one-way flight deals

7/15Tue
nonstopFrontier
2h 40mSFO-DEN
$63
8/12Tue
nonstopFrontier
2h 40mSFO-DEN
$64
9/27Sat
nonstopSouthwest
2h 30mOAK-DEN
$79
8/30Sat
nonstopSouthwest
2h 25mSFO-DEN
$79
8/12Tue
1 stopAmerican Airlines
4h 40mSFO-DEN
$89
8/30Sat
1 stopAmerican Airlines
5h 45mSFO-DEN
$94
10/8Wed
1 stopDelta
5h 02mOAK-DEN
$109
8/13Wed
1 stopDelta
7h 32mSJC-DEN
$109
8/4Mon
nonstopUnited Airlines
2h 36mSFO-DEN
$114
8/30Sat
1 stopUnited Airlines
6h 47mSFO-MTJ
$115

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Last minute flights from San Francisco Bay Area to Colorado

Last minute flight, train and bus deals

6/19Thu
nonstopFrontier
2h 41mSFO-DEN
8/21Thu
nonstopFrontier
2h 44mDEN-SFO
$185
6/20Fri
nonstopFrontier
2h 35mSFO-DEN
7/16Wed
nonstopFrontier
2h 49mDEN-SFO
$187
6/21Sat
multi-stopDelta
5h 58mOAK-DEN
7/8Tue
multi-stopDelta
6h 45mDEN-OAK
$297
6/21Sat
multi-stopDelta
6h 24mSFO-DEN
7/5Sat
multi-stopDelta
4h 53mDEN-SFO
$297
6/19Thu
multi-stopAmerican Airlines
7h 53mSFO-ASE
6/24Tue
multi-stopAmerican Airlines
6h 12mASE-SFO
$309
6/19Thu
multi-stopAmerican Airlines
9h 34mSFO-ASE
6/24Tue
multi-stopAmerican Airlines
9h 00mASE-SFO
$314
6/21Sat
multi-stopUnited Airlines
6h 56mSFO-ASE
6/30Mon
nonstopUnited Airlines
2h 37mASE-SFO
$339
6/21Sat
multi-stopUnited Airlines
4h 44mSFO-ASE
6/30Mon
multi-stopUnited Airlines
6h 43mASE-SFO
$349
6/21Sat
multi-stopSouthwest
9h 25mSFO-DEN
6/25Wed
multi-stopSouthwest
4h 15mDEN-SFO
$402
6/21Sat
multi-stopSouthwest
5h 25mSFO-DEN
6/29Sun
multi-stopSouthwest
5h 55mDEN-SFO
$435

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Everything you need to know for your flight to Colorado

Cabin class types available on flights to San Francisco Bay Area

Cabin classes available on flights to San Francisco Bay Area. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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