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$44+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$63
(Kiwi.com)

One-way from

$44
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$177

Good round-trip deal

$45 or less

Good one-way deal

$39 or less
Provider with most accurate pricing for Denver Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-San Francisco flights.
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From Colorado to San Francisco
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One-way flight from Colorado to San Francisco
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Highest demand for flights based on searches. 10% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Colorado to San Francisco.
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Price to beat on a one-way flight from Colorado to San Francisco.
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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 February 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 3/2710:49 pmDEN - SFO
Nonstop2h 54mFrontier
Sun 4/66:00 amSFO - DEN
Nonstop2h 39mFrontier
Deal found 2/20$76
This Expedia deal was found by Cheapflights users on 2/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1510:49 pmDEN - SFO
Nonstop2h 55mMultiple Airlines
Tue 4/222:34 pmSFO - DEN
1 stop5h 41mMultiple Airlines
Deal found 2/19$132
This Southwest deal was found by Cheapflights users on 2/20. 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.
Mon 4/219:40 pmDEN - SFO
Nonstop2h 40mSouthwest
Thu 4/246:05 amSFO - DEN
1 stop6h 45mSouthwest
Deal found 2/20$151
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/242:20 pmDEN - SFO
1 stop5h 37mAmerican Airlines
Thu 3/276:30 amSFO - DEN
1 stop5h 21mAmerican Airlines
Deal found 2/20$197
This Delta deal was found by Cheapflights users on 2/20. 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.
Wed 4/2311:59 amDEN - SFO
1 stop5h 18mDelta
Sat 4/2610:04 amSFO - DEN
1 stop4h 12mDelta
Deal found 2/20$217
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/145:15 amDEN - SFO
Nonstop2h 55mUnited Airlines
Fri 3/215:00 amSFO - DEN
Nonstop2h 39mUnited Airlines
Deal found 2/20$218
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:37 pmDEN - SFO
1 stop6h 04mHawaiian Airlines
Tue 4/2912:05 pmSFO - DEN
1 stop8h 10mHawaiian Airlines
Deal found 2/19$226
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/74:44 pmCOS - SFO
1 stop8h 48mAmerican Airlines
Tue 3/116:00 amSFO - COS
1 stop8h 46mAmerican Airlines
Deal found 2/19$237
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/55:08 pmDEN - SFO
2 stops15h 52mAlaska Airlines
Wed 3/1211:35 amSFO - DEN
1 stop8h 45mAlaska Airlines
Deal found 2/19$245
This Southwest deal was found by Cheapflights users on 2/19. 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.
Thu 3/276:15 pmCOS - SFO
1 stop7h 15mSouthwest
Tue 4/15:40 amSFO - COS
1 stop7h 00mSouthwest
Deal found 2/19$257
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 4/56:00 amCOS - SFO
1 stop4h 36mUnited Airlines
Sat 4/262:25 pmSFO - COS
1 stop5h 18mUnited Airlines
Deal found 2/20$268
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 3/156:45 pmHDN - SFO
1 stop14h 15mAlaska Airlines
Sat 3/227:35 amSFO - HDN
1 stop5h 35mAlaska Airlines
Deal found 2/20$271

Find flights from Colorado to San Francisco within your budget

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 February 20, 2025.

Fly from

Colorado

Fly to

San Francisco

Route

Depart

Return

Price

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sun 4/13

10:49 pm-12:44 am

Nonstop2h 55m

San Francisco

Thu 4/17

6:00 am-9:39 am

Nonstop2h 39m

$64

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 4/15

10:49 pm-12:44 am

Nonstop2h 55m

San Francisco

Tue 4/22

2:34 pm-9:15 pm

1 stop5h 41m

$132

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 4/21

9:40 pm-11:20 pm

Nonstop2h 40m

San Francisco

Thu 4/24

6:05 am-1:50 pm

1 stop6h 45m

$151

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 3/24

2:20 pm-6:57 pm

1 stop5h 37m

San Francisco

Thu 3/27

6:30 am-12:51 pm

1 stop5h 21m

$197

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 4/23

5:45 am-9:14 am

1 stop4h 29m

San Francisco

Tue 4/29

6:00 am-12:56 pm

1 stop5h 56m

$217

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 3/14

5:15 am-7:10 am

Nonstop2h 55m

San Francisco

Sat 3/22

5:00 am-8:39 am

Nonstop2h 39m

$218

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 4/24

6:37 pm-11:41 pm

1 stop6h 04m

San Francisco

Wed 4/30

2:34 pm-9:15 pm

1 stop5h 41m

$226

Colorado SpringsSan Francisco

COS - SFO

COSSFO

Colorado Springs

Fri 3/7

4:44 pm-12:32 am

1 stop8h 48m

San Francisco

Tue 3/11

6:00 am-3:46 pm

1 stop8h 46m

$237

Colorado SpringsSan Francisco

COS - SFO

COSSFO

Colorado Springs

Thu 3/27

6:15 pm-12:30 am

1 stop7h 15m

San Francisco

Tue 4/1

5:40 am-1:40 pm

1 stop7h 00m

$257

Colorado SpringsSan Francisco

COS - SFO

COSSFO

Colorado Springs

Sat 4/5

6:00 am-9:36 am

1 stop4h 36m

San Francisco

Sat 4/26

2:25 pm-8:43 pm

1 stop5h 18m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Colorado to San Francisco

Get recent, data-driven insights about flights from Colorado to San Francisco including ideal travel times, pricing trends, and more.

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 $403). 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 February 20, 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 February 20, 2025.

The most flights from USCO to SFO are scheduled on a Monday (59 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Breeze Airways and Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Breeze Airways
8.1
Very good
150 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 145 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $44 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $71 and $109, respectively.

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

    While some choose either Vail Eagle County - San Francisco or Aspen Pitkin County - 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 Asiana Airlines (77%), Air China (75%) or ANA (74%) 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 $1,088, our data indicates the cheapest price to be $31. 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, 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 $403). 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
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Vallejo
Newark
Alameda
Campbell
Pacific Grove
Sunnyvale

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.
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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$123FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$95Average$135FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$149Average$452FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$151Average$325FlexibilityNo cancel feeOn-time63%
DeltaCheapest$186Average$262FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$415FlexibilityNo cancel feeOn-time71%
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