What airlines fly to Colorado?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from San Francisco according to our data. Frontier is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 7 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Francisco to Colorado?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from San Francisco to Colorado

How many flights depart from San Francisco to Colorado on average per day?

33 flights are operational daily from San Francisco to Colorado as of December 2025. The most popular departure time for this route is 2:00PM, with 39% of flights per day taking off at noon.

How many flights depart from San Francisco to Colorado on average per week?

The number of flights available between San Francisco and Colorado is 237 per week as of December 2025. The most frequent departure day is Thu, with 25% of weekly flights leaving on this day.

When did momondo last update prices for flights from San Francisco Airport to Colorado?

Prices for flights from San Francisco Airport to Colorado were last updated today.

How many operators does momondo search for flights from San Francisco Airport to Colorado?

There are 6 operators available for flights from San Francisco Airport to Colorado as of December 2025.

How old do you have to be to fly from San Francisco Airport to Colorado?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$60 Cheap Flights from San Francisco to Colorado in 2025/26

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8:58 am - 12:40 pm

SFO

DEN

2h 42mnonstop

8:00 pm - 10:01 pm

DEN

SFO

3h 01mnonstop

$93Frontier

Fri, Jan 9 - Tue, Feb 17

7:00 am - 10:42 am

SFO

DEN

2h 42mnonstop

4:04 pm - 5:59 pm

DEN

SFO

2h 55mnonstop

$94Frontier

Tue, Jan 6 - Wed, Jan 7

7:00 am - 2:17 pm

SFO

COS

30h 17m2 stops

3:07 pm - 9:46 am

COS

SFO

19h 39m1 stop

$201Multiple Airlines

Wed, Jan 7 - Sun, Jan 11

6:00 am - 11:17 am

SFO

COS

4h 17m1 stop

12:03 pm - 5:38 pm

COS

SFO

6h 35m1 stop

$211Delta

Tue, Jan 27 - Tue, Feb 3

11:56 am - 3:18 pm

SFO

MTJ

2h 22mnonstop

2:10 pm - 7:02 pm

MTJ

SFO

5h 52m1 stop

$219United Airlines

Sat, Mar 14 - Thu, Mar 19

6:00 am - 11:17 am

SFO

COS

4h 17m1 stop

7:59 am - 5:49 pm

COS

SFO

10h 50m2 stops

$222Delta

Tue, Jan 27 - Tue, Feb 3

9:32 am - 1:06 pm

SFO

HDN

2h 34mnonstop

2:50 pm - 4:46 pm

HDN

SFO

2h 56mnonstop

$229United Airlines

Fri, Jan 2 - Sat, Jan 10

6:00 am - 2:05 pm

SFO

MTJ

7h 05m1 stop

2:57 pm - 9:37 pm

MTJ

SFO

7h 40m1 stop

$229American Airlines

Fri, Jan 30 - Tue, Feb 3

7:00 am - 5:41 pm

SFO

COS

9h 41m2 stops

6:12 am - 1:46 pm

COS

SFO

8h 34m1 stop

$236American Airlines

Thu, Jan 29 - Wed, Feb 4

1:29 pm - 12:46 pm

SFO

GJT

22h 17m2 stops

1:26 pm - 12:34 pm

GJT

SFO

24h 08m1 stop

$353Multiple Airlines

Wed, Dec 31 - Sun, Jan 4

Frontier flights from San Francisco to Colorado

Our best Frontier deals on San Francisco to Colorado flight tickets

Frontier

Jan 9

SFO8:58 amSan Francisco

2h 42m

DEN12:40 pmDenver Intl

Feb 17

DEN8:00 pmDenver Intl

3h 01m

SFO10:01 pmSan Francisco

$93

Find similar

Frontier

Jan 6

SFO7:00 amSan Francisco

2h 42m

DEN10:42 amDenver Intl

Feb 18

DEN9:24 pmDenver Intl

10h 56m

1 stop

SFO7:20 amSan Francisco

$94

Find similar

Frontier

Feb 11

SFO6:55 amSan Francisco

2h 47m

DEN10:42 amDenver Intl

Feb 15

DEN10:29 pmDenver Intl

2h 59m

SFO12:28 amSan Francisco

$96

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American Airlines flights from San Francisco to Colorado

Our best American Airlines deals on San Francisco to Colorado flight tickets

American Airlines

Jan 30

SFO6:00 amSan Francisco

7h 05m

1 stop

MTJ2:05 pmMontrose County

Feb 3

MTJ2:57 pmMontrose County

7h 40m

1 stop

SFO9:37 pmSan Francisco

$229

Find similar

American Airlines

Jan 29

SFO7:00 amSan Francisco

9h 41m

2 stops

COS5:41 pmColorado Springs

Feb 4

COS3:17 pmColorado Springs

8h 55m

1 stop

SFO11:12 pmSan Francisco

$236

Find similar

American Airlines

Jan 29

SFO7:00 amSan Francisco

9h 41m

2 stops

COS5:41 pmColorado Springs

Feb 4

COS10:21 amColorado Springs

10h 49m

2 stops

SFO8:10 pmSan Francisco

$241

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 1/9

8:58 am-12:40 pm

Nonstop2h 42m

Denver Intl

Tue 2/17

8:00 pm-10:01 pm

Nonstop3h 01m

$93

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 1/6

7:00 am-10:42 am

Nonstop2h 42m

Denver Intl

Wed 1/7

4:04 pm-5:59 pm

Nonstop2h 55m

$94

San FranciscoColorado Springs

SFO - COS

SFOCOS

San Francisco

Wed 1/7

7:00 am-2:17 pm

2 stops30h 17m

Colorado Springs

Sun 1/11

3:07 pm-9:46 am

1 stop19h 39m

$201

San FranciscoColorado Springs

SFO - COS

SFOCOS

San Francisco

Tue 1/27

6:00 am-11:17 am

1 stop4h 17m

Colorado Springs

Tue 2/3

12:03 pm-5:38 pm

1 stop6h 35m

$211

San FranciscoMontrose

SFO - MTJ

SFOMTJ

San Francisco

Sat 3/14

11:56 am-3:18 pm

Nonstop2h 22m

Montrose County

Thu 3/19

2:10 pm-7:02 pm

1 stop5h 52m

$219

San FranciscoColorado Springs

SFO - COS

SFOCOS

San Francisco

Tue 1/27

6:00 am-11:17 am

1 stop4h 17m

Colorado Springs

Tue 2/3

7:59 am-5:49 pm

2 stops10h 50m

$222

San FranciscoHayden

SFO - HDN

SFOHDN

San Francisco

Fri 1/2

9:32 am-1:06 pm

Nonstop2h 34m

Hayden Yampa Valley

Sat 1/10

2:50 pm-4:46 pm

Nonstop2h 56m

$229

San FranciscoMontrose

SFO - MTJ

SFOMTJ

San Francisco

Fri 1/30

6:00 am-2:05 pm

1 stop7h 05m

Montrose County

Tue 2/3

2:57 pm-9:37 pm

1 stop7h 40m

$229

San FranciscoColorado Springs

SFO - COS

SFOCOS

San Francisco

Thu 1/29

7:00 am-5:41 pm

2 stops9h 41m

Colorado Springs

Wed 2/4

6:12 am-1:46 pm

1 stop8h 34m

$236

San FranciscoGrand Junction

SFO - GJT

SFOGJT

San Francisco

Wed 12/31

1:29 pm-12:46 pm

2 stops22h 17m

Grand Junction Regnl

Sun 1/4

1:26 pm-12:34 pm

1 stop24h 08m

$353

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How to get the cheapest flight ticket from San Francisco to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of January is, on average, the cheapest month to fly to Colorado from San Francisco, with most prices found around $162. The month of February is another great option to travel to Colorado, with average flight prices from San Francisco averaging around $207.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from San Francisco to Colorado is on a Friday when prices can be found for as low as $303. On the other hand, Sunday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $373.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $261. At noon is when there is more demand to fly to Colorado, so prices are often more expensive at around $386 per ticket.

What is the cheapest San Francisco to Colorado flight route?

Fly from San Francisco to Denver Intl for the best San Francisco - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $235 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from San Francisco for as low as $187 on momondo.

What cabin class options are available on San Francisco to Colorado flights?

There are 4 cabin classes available to choose from on San Francisco to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Colorado flights?

No. A direct flight is the cheapest option for a flight between San Francisco to Colorado.

Cheap San Francisco to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Colorado

Best Price Found	$140
Fastest flight time	2h 22m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from San Francisco in the past 72 hours is $140. The best round-trip flight deal from San Francisco to Colorado found on momondo in the last 72 hours is $226.

The fastest flight from San Francisco to Colorado takes 2h 22m

Direct flights go from San Francisco to Colorado every day.

There are 87 airports in Colorado. From San Francisco there are direct flights to Montrose County (MTJ), Vail Eagle County (EGE), Aspen Pitkin County (ASE), Hayden Yampa Valley (HDN) and 1 more.

Search flight deals

When did momondo last update prices for flights from San Francisco Airport to Colorado?
Prices for flights from San Francisco Airport to Colorado were last updated today.
How many operators does momondo search for flights from San Francisco Airport to Colorado?
There are 6 operators available for flights from San Francisco Airport to Colorado as of December 2025.
How old do you have to be to fly from San Francisco Airport to Colorado?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to Colorado?
momondo data reveals that the most frequently booked plane model on the route from San Francisco to Colorado is Boeing 737 MAX 8, representing 16.40% of all bookings. The subsequent popular models are Airbus A321neo at 15.63%, Boeing 737 MAX 9 at 10.89%, and Airbus A320neo at 8.14%.

Best airlines flying from San Francisco to Colorado

Compare and see reviews for airlines that fly from San Francisco to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $38	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Allegiant Air	PriceFrom $88	Free Cancellation	Rating 7.2 700 reviews	Search Allegiant Air flights
Southwest	PriceFrom $157	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $163	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights
Delta	PriceFrom $175	Free Cancellation	Rating 7.9 8,006 reviews	Search Delta flights
American Airlines	PriceFrom $176	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Colorado?

Finding the right flight to Colorado from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Colorado quick and easy, saving you time and money.

Can I find flights from San Francisco to Colorado with flexible booking policies on momondo?

momondo does allow users to show only those flights to Colorado from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Colorado?

Once you have performed a search for San Francisco to Colorado flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Francisco to Colorado right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Francisco to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Colorado

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Flights to Las Vegasfrom $49

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Flights to Seattlefrom $58

Cheap flights from San Francisco to Colorado from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Colorado departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from San Francisco to Colorado

Our best Frontier deals on San Francisco to Colorado flight tickets

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See travel insights to Colorado from

How to get the cheapest flight ticket from San Francisco to Colorado

What is the cheapest month to fly to Colorado?

The month of January is, on average, the cheapest month to fly to Colorado from San Francisco, with most prices found around $162. The month of February is another great option to travel to Colorado, with average flight prices from San Francisco averaging around $207.

What is the cheapest day to depart on your flight to Colorado?

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $261. At noon is when there is more demand to fly to Colorado, so prices are often more expensive at around $386 per ticket.

What is the cheapest San Francisco to Colorado flight route?

Fly from San Francisco to Denver Intl for the best San Francisco - Colorado flight prices

How far in advance should I book a flight to Colorado?

What cabin class options are available on San Francisco to Colorado flights?

There are 4 cabin classes available to choose from on San Francisco to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Colorado flights?

No. A direct flight is the cheapest option for a flight between San Francisco to Colorado.

What is the cheapest airline that flies from San Francisco to Colorado?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from San Francisco to Colorado

What airlines fly to Colorado?

How many flights depart from San Francisco to Colorado on average per day?

33 flights are operational daily from San Francisco to Colorado as of December 2025. The most popular departure time for this route is 2:00PM, with 39% of flights per day taking off at noon.

How many flights depart from San Francisco to Colorado on average per week?

The number of flights available between San Francisco and Colorado is 237 per week as of December 2025. The most frequent departure day is Thu, with 25% of weekly flights leaving on this day.

Cheap San Francisco to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Colorado

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

When did momondo last update prices for flights from San Francisco Airport to Colorado?

How many operators does momondo search for flights from San Francisco Airport to Colorado?

How old do you have to be to fly from San Francisco Airport to Colorado?

What documentation or ID do you need to fly to Colorado?

What is the most popular plane model from San Francisco to Colorado?

Best airlines flying from San Francisco to Colorado

Compare and see reviews for airlines that fly from San Francisco to Colorado with momondo

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Colorado?

Can I find flights from San Francisco to Colorado with flexible booking policies on momondo?

How can momondo help me find flights from San Francisco to Colorado?

I’m not ready to book a flight from San Francisco to Colorado right now. Can momondo alert me if prices change?

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo