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$73+ Cheap flights from Colorado to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Find flight deals from Colorado to San Francisco

Cheapest flights from Colorado to San Francisco
Explore the most affordable flight options available from Colorado to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:59 amDEN - SFO
1 stop13h 19mFrontier
Mon 12/154:59 pmSFO - DEN
1 stop9h 59mFrontier
Deal found 11/4$128
This Frontier deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:45 amDEN - SFO
Nonstop2h 48mFrontier
Wed 11/198:55 pmSFO - DEN
1 stop11h 01mFrontier
Deal found 11/3$129
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:50 amDEN - SFO
1 stop8h 27mFrontier
Tue 12/96:00 amSFO - DEN
1 stop15h 29mFrontier
Deal found 11/3$130
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:29 pmDEN - SFO
Nonstop2h 55mFrontier
Thu 12/44:07 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 11/3$131
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amDEN - SFO
1 stop10h 03mFrontier
Tue 12/210:10 pmSFO - DEN
1 stop11h 02mFrontier
Deal found 11/3$132
This Priceline deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:29 pmDEN - SFO
Nonstop2h 55mFrontier
Mon 11/242:54 pmSFO - DEN
Nonstop2h 40mFrontier
Deal found 11/4$133
This Priceline deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:29 pmDEN - SFO
Nonstop2h 55mFrontier
Fri 12/56:30 amSFO - DEN
Nonstop2h 42mFrontier
Deal found 11/3$134
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:45 amDEN - SFO
Nonstop2h 48mFrontier
Tue 11/187:30 amSFO - DEN
1 stop19h 29mFrontier
Deal found 11/3$136
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:11 amDEN - SFO
1 stop7h 32mFrontier
Mon 11/249:03 amSFO - DEN
1 stop13h 05mFrontier
Deal found 11/2$137
This Frontier deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:30 amDEN - SFO
1 stop6h 17mFrontier
Fri 11/2810:03 pmSFO - DEN
1 stop5h 17mFrontier
Deal found 11/4$138
This Frontier deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:54 pmDEN - SFO
Nonstop2h 46mFrontier
Wed 11/198:55 pmSFO - DEN
1 stop11h 01mFrontier
Deal found 11/3$139
This Cheapflightsfares deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:30 amDEN - SFO
Nonstop2h 53mFrontier
Sun 1/188:43 amSFO - DEN
1 stop18h 13mFrontier
Deal found 11/4$140

Cheap flight deals from Colorado to San Francisco

Keep the following information in mind while searching for Colorado to San Francisco flight deals. Data was last updated November 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$128
(Cheapflightsfares)

One-way from

$73
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$247

Good round-trip deal

$230 or less

Good one-way deal

$118 or less
Provider with most accurate pricing for Denver Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-San Francisco flights.
Search Deals
From Colorado to San Francisco
Search Deals
One-way flight from Colorado to San Francisco
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Colorado to San Francisco.
Search Deals
Price to beat on a one-way flight from Colorado to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Colorado to San Francisco that are best for you.

Fly from

Colorado

Fly to

San Francisco

Route

Depart

Return

Price

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 2/13

7:40 pm-9:30 pm

Nonstop2h 50m

San Francisco

Tue 2/17

9:10 am-5:45 pm

2 stops7h 35m

$152

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 12/20

10:37 pm-7:48 am

1 stop10h 11m

San Francisco

Sat 12/27

6:24 am-10:06 am

Nonstop2h 42m

$156

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 11/25

10:29 pm-12:24 am

Nonstop2h 55m

San Francisco

Sat 11/29

6:32 am-10:14 am

Nonstop2h 42m

$158

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 1/6

1:10 pm-9:15 pm

2 stops9h 05m

San Francisco

Fri 1/9

5:30 am-12:50 pm

2 stops6h 20m

$187

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 12/18

6:48 pm-12:27 am

1 stop6h 39m

San Francisco

Sun 1/18

8:20 am-6:41 pm

1 stop9h 21m

$194

DurangoSan Francisco

DRO - SFO

DROSFO

Durango La Plata County

Thu 12/25

6:02 pm-11:05 pm

1 stop6h 03m

San Francisco

Tue 12/30

5:00 am-11:07 am

1 stop5h 07m

$198

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 2/16

9:20 pm-11:17 pm

Nonstop2h 57m

San Francisco

Thu 2/19

5:10 am-8:47 am

Nonstop2h 37m

$207

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 12/23

7:11 pm-11:49 pm

1 stop5h 38m

San Francisco

Tue 12/30

7:20 pm-10:35 am

1 stop14h 15m

$211

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 11/14

12:54 pm-2:40 pm

Nonstop2h 46m

San Francisco

Mon 11/17

3:09 pm-5:21 pm

1 stop25h 12m

$213

DurangoSan Francisco

DRO - SFO

DROSFO

Durango La Plata County

Thu 11/13

4:34 pm-12:35 am

1 stop9h 01m

San Francisco

Sun 11/16

11:59 pm-9:51 am

1 stop8h 52m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 results
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Best time to book a flight from Colorado to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Colorado to San Francisco?

Currently, March is the cheapest month in which you can book a flight from Colorado to San Francisco (average of $38). Flying from Colorado to San Francisco in August is currently the most expensive (average of $124). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to SFO?

Find hourly flight availability from Colorado to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2025.

One of the essential ways to save on airfare from Colorado to San Francisco is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 52% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Colorado to San Francisco. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Colorado to San Francisco flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Colorado to San Francisco

Explore weekly flight availability from Colorado to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 4, 2025.

The most flights from USCO to SFO are scheduled on a Monday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

How much does it cost to fly round-trip from Colorado to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from Colorado to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Colorado?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Colorado. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • How popular is this Colorado to San Francisco flight route?

    The Colorado to San Francisco flight path was viewed by 119 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Colorado to San Francisco?

    There are many flights that can get you from Colorado to San Francisco in 2h 50m. Fly via Southwest, Frontier, or United Airlines to get the fastest option. Colorado and San Francisco are separated by a distance of 964 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Colorado to San Francisco one-way?

    $79 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from $88 and $89, respectively.

  • What are the most popular routes from Colorado to San Francisco?

    While some choose either Aspen Pitkin County - San Francisco or Grand Junction Regnl - San Francisco, Denver Intl - San Francisco is the most popular route from Colorado to San Francisco.

  • What are the most reliable airlines from Colorado to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Colorado to San Francisco consider choosing Air China (89%), Emirates (85%) or United Airlines (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Colorado to San Francisco?

    Looking for the cheapest flight from Colorado to San Francisco? While on average our users pay $915, our data indicates the cheapest price to be $55. The most popular route (Denver Intl - San Francisco), is priced around $58.

  • Can I find deals for flights from Colorado to San Francisco that include hotel bookings?

    Yes. In addition to deals on Colorado to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to San Francisco.

  • Can I find deals for business class flights from Colorado to San Francisco?

    Yes. Cheapflights offers flight deals from Colorado to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to San Francisco?

    Currently, March is the cheapest month in which you can book a flight from Colorado to San Francisco (average of $38). Flying from Colorado to San Francisco in August is currently the most expensive (average of $124). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Watsonville
Sunnyvale
Santa Clara
Antioch
Manteca
Vallejo
Hollister
Vacaville
San Bruno
Foster City
Redwood City
Union City
Fairfield
Burlingame
Lodi

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Colorado to San Francisco

Discover the top 5 airlines that operate flights from Colorado to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$143FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$144Average$350FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$170Average$427FlexibilityNo cancel feeOn-time69%
DeltaCheapest$171Average$301FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$369FlexibilityNo cancel feeOn-time71%

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