San Francisco

$78+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Jun 17 — Jun 241
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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 June 12, 2025.

Round-trip from

$130
(Cheapflightsfares)

One-way from

$79
(Southwest)

Popular in

June

Cheapest in

February

Average price

$265

Good round-trip deal

$218 or less

Good one-way deal

$137 or less
From Colorado to San Francisco
One-way flight from Colorado to San Francisco
Highest demand for flights based on searches. 9% potential increase in price ($21 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Colorado to San Francisco.
Price to beat on a one-way flight from Colorado to San Francisco.

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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Fri 8/2910:29 pmDEN - SFO
Nonstop2h 50mFrontier
Mon 9/16:26 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 6/10$130
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:30 pmDEN - SFO
Nonstop2h 35mSouthwest
Thu 10/95:00 amSFO - DEN
Nonstop2h 30mSouthwest
Deal found 6/10$157
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:43 amDRO - SFO
1 stop8h 33mAmerican Airlines
Sun 10/512:47 amSFO - DRO
1 stop9h 56mAmerican Airlines
Deal found 6/10$212
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:01 amDEN - SFO
1 stop8h 00mAlaska Airlines
Mon 10/136:45 amSFO - DEN
1 stop6h 15mAlaska Airlines
Deal found 6/10$216
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/410:37 amMTJ - SFO
2 stops10h 49mAmerican Airlines
Sun 8/1012:45 amSFO - MTJ
1 stop8h 14mAmerican Airlines
Deal found 6/10$216
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:10 pmDEN - SFO
1 stop5h 41mDelta
Sat 8/912:30 pmSFO - DEN
1 stop4h 47mDelta
Deal found 6/10$217
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:35 pmCOS - SFO
1 stop4h 20mSouthwest
Tue 10/75:45 amSFO - COS
1 stop6h 20mSouthwest
Deal found 6/11$217
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:00 amGJT - SFO
1 stop5h 46mAmerican Airlines
Sun 8/106:42 pmSFO - GJT
1 stop4h 39mAmerican Airlines
Deal found 6/12$217
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:21 pmCOS - SFO
1 stop9h 29mAmerican Airlines
Tue 10/712:46 pmSFO - COS
2 stops9h 42mAmerican Airlines
Deal found 6/11$222
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:08 pmASE - SFO
1 stop4h 29mAmerican Airlines
Sat 8/210:03 amSFO - ASE
1 stop4h 59mAmerican Airlines
Deal found 6/11$227
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:55 pmDRO - SFO
1 stop6h 02mUnited Airlines
Mon 10/65:05 amSFO - DRO
1 stop6h 26mUnited Airlines
Deal found 6/10$236
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:10 pmDEN - SFO
Nonstop2h 47mUnited Airlines
Mon 10/138:52 pmSFO - DEN
Nonstop2h 37mUnited Airlines
Deal found 6/10$247

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 June 12, 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 8/29

10:29 pm-12:19 am

Nonstop2h 50m

San Francisco

Mon 9/1

6:26 am-10:06 am

Nonstop2h 40m

$130

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 10/8

9:30 pm-11:05 pm

Nonstop2h 35m

San Francisco

Thu 10/9

5:00 am-8:30 am

Nonstop2h 30m

$157

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 10/10

7:01 am-2:01 pm

1 stop8h 00m

San Francisco

Mon 10/13

6:45 am-2:00 pm

1 stop6h 15m

$216

MontroseSan Francisco

MTJ - SFO

MTJSFO

Montrose County

Mon 8/4

10:37 am-8:26 pm

2 stops10h 49m

San Francisco

Sun 8/10

12:45 am-9:59 am

1 stop8h 14m

$216

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 8/2

6:10 pm-10:51 pm

1 stop5h 41m

San Francisco

Thu 8/7

5:55 am-11:35 am

1 stop4h 40m

$217

Colorado SpringsSan Francisco

COS - SFO

COSSFO

Colorado Springs

Wed 10/1

2:35 pm-5:55 pm

1 stop4h 20m

San Francisco

Tue 10/7

5:45 am-1:05 pm

1 stop6h 20m

$217

Grand JunctionSan Francisco

GJT - SFO

GJTSFO

Grand Junction Regnl

Wed 8/6

5:00 am-9:46 am

1 stop5h 46m

San Francisco

Sun 8/10

6:42 pm-12:21 am

1 stop4h 39m

$217

DurangoSan Francisco

DRO - SFO

DROSFO

Durango La Plata County

Thu 7/10

6:00 am-9:33 am

1 stop4h 33m

San Francisco

Wed 7/16

6:45 pm-12:10 am

1 stop4h 25m

$218

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Thu 8/7

7:06 pm-11:02 pm

1 stop4h 56m

San Francisco

Sun 8/10

10:05 am-1:29 pm

Nonstop2h 24m

$219

Colorado SpringsSan Francisco

COS - SFO

COSSFO

Colorado Springs

Wed 10/1

12:21 pm-8:50 pm

1 stop9h 29m

San Francisco

Tue 10/7

12:46 pm-11:28 pm

2 stops9h 42m

$222

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 53 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, January is the cheapest month in which you can book a flight from Colorado to San Francisco (average of $276). Flying from Colorado to San Francisco in June is currently the most expensive (average of $364). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to San Francisco as you normally would.

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 June 12, 2025.

The most flights from USCO to SFO are scheduled on a Wednesday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Breeze Airways, Alaska Airlines and Southwest from Colorado to San Francisco to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
8.0
Very good

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Overall

8.1

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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?

  • 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 Southwest. You may also be able to find cheap deals on Frontier and Hawaiian Airlines, with prices starting from $84 and $88, respectively.

  • What are the most popular routes 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 Emirates (92%), ANA (92%) or Air China (92%) 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 $2,780, our data indicates the cheapest price to be $68. The most popular route (Denver Intl - San Francisco), is priced around $121.

  • 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, January is the cheapest month in which you can book a flight from Colorado to San Francisco (average of $276). Flying from Colorado to San Francisco in June is currently the most expensive (average of $364). 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 Colorado?

Book flights to Colorado if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Colorado to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Colorado to San Francisco

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$129FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$95Average$101FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$141Average$346FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$150Average$463FlexibilityNo cancel feeOn-time69%
DeltaCheapest$245Average$298FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$386FlexibilityNo cancel feeOn-time71%

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