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$80+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$136
(Flightnetwork)

One-way from

$80
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$237

Good round-trip deal

$204 or less

Good one-way deal

$140 or less
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. 18% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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.
Fri 10/101:10 pmDEN - SFO
1 stop4h 55mFrontier
Tue 10/146:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 8/20$133
This Flightnetwork deal was found by Cheapflights users on 8/18. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:29 pmDEN - SFO
Nonstop2h 47mFrontier
Fri 10/106:34 amSFO - DEN
Nonstop2h 44mFrontier
Deal found 8/18$136
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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.
Fri 8/296:53 amDEN - SFO
Nonstop2h 43mFrontier
Sun 8/319:21 amSFO - DEN
Nonstop2h 39mFrontier
Deal found 8/20$137
This Frontier deal was found by Cheapflights users on 8/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:00 amDEN - SFO
Nonstop2h 45mFrontier
Tue 9/97:10 amSFO - DEN
Nonstop2h 37mFrontier
Deal found 8/19$138
This Frontier deal was found by Cheapflights users on 8/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:45 pmDEN - SFO
Nonstop2h 48mFrontier
Mon 9/16:26 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 8/20$139
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:29 pmDEN - SFO
Nonstop2h 45mFrontier
Mon 10/2012:19 pmSFO - DEN
Nonstop2h 48mFrontier
Deal found 8/19$140
This Priceline deal was found by Cheapflights users on 8/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:00 amDEN - SFO
1 stop9h 10mFrontier
Sun 8/316:26 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 8/19$141
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:45 pmDEN - SFO
Nonstop2h 48mFrontier
Thu 9/410:45 amSFO - DEN
Nonstop2h 41mFrontier
Deal found 8/19$142
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Fri 9/196:00 amDEN - SFO
1 stop16h 51mFrontier
Mon 9/223:28 pmSFO - DEN
1 stop11h 32mFrontier
Deal found 8/18$143
This CheapOair deal was found by Cheapflights users on 8/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:59 amDEN - SFO
1 stop21h 22mFrontier
Sun 9/216:29 amSFO - DEN
Nonstop2h 39mFrontier
Deal found 8/18$144
This Frontier deal was found by Cheapflights users on 8/17. 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 8/246:00 amDEN - SFO
1 stop8h 03mFrontier
Tue 8/266:50 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 8/17$145
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 10/1010:29 pmDEN - SFO
Nonstop2h 45mFrontier
Fri 10/248:21 pmSFO - DEN
Nonstop2h 41mFrontier
Deal found 8/17$146

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 August 20, 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 10/10

1:10 pm-5:05 pm

1 stop4h 55m

San Francisco

Tue 10/14

6:34 am-10:18 am

Nonstop2h 44m

$133

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sun 9/7

6:00 am-7:45 am

Nonstop2h 45m

San Francisco

Sat 9/13

10:49 am-2:30 pm

Nonstop2h 41m

$136

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 10/18

8:41 pm-10:29 pm

Nonstop2h 48m

San Francisco

Mon 10/20

1:29 pm-12:46 am

1 stop10h 17m

$136

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 10/3

10:29 pm-12:16 am

Nonstop2h 47m

San Francisco

Fri 10/10

8:21 pm-12:02 am

Nonstop2h 41m

$136

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 10/9

10:29 pm-12:14 am

Nonstop2h 45m

San Francisco

Mon 10/13

6:34 am-10:18 am

Nonstop2h 44m

$138

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 9/6

8:41 pm-10:30 pm

Nonstop2h 49m

San Francisco

Sun 9/14

6:29 am-10:08 am

Nonstop2h 39m

$138

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 9/5

6:00 am-7:45 am

Nonstop2h 45m

San Francisco

Tue 9/9

7:10 am-10:47 am

Nonstop2h 37m

$138

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sun 8/31

10:29 pm-12:19 am

Nonstop2h 50m

San Francisco

Wed 9/3

6:50 am-10:30 am

Nonstop2h 40m

$139

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 8/30

8:45 pm-10:33 pm

Nonstop2h 48m

San Francisco

Mon 9/1

6:26 am-10:06 am

Nonstop2h 40m

$139

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sun 9/7

6:00 am-7:45 am

Nonstop2h 45m

San Francisco

Mon 9/8

6:29 am-10:08 am

Nonstop2h 39m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

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, 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 $358). 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 August 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 August 20, 2025.

The most flights from USCO to SFO are scheduled on a Tuesday (52 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (32 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 115 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 4h 17m. Fly via Frontier, Delta, or United Airlines to get the fastest option. Colorado and San Francisco are separated by a distance of 756 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?

    $80 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 $109 and $146, respectively.

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

    While some choose either Grand Junction Regnl - San Francisco or Montrose 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 Emirates (84%), Air China (79%) or ANA (75%) 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 $1,007, our data indicates the cheapest price to be $74. The most popular route (Denver Intl - San Francisco), is priced around $81.

  • 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 $358). 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
Santa Cruz
Livermore
South San Francisco
Mountain View
Turlock
Santa Clara
Hollister
Antioch
Watsonville
Manteca
Newark
Milpitas
Sunnyvale
Campbell
Foster City
San Leandro
Burlingame
Redwood City
Vallejo

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 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$138FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$141Average$345FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$157Average$445FlexibilityNo cancel feeOn-time69%
DeltaCheapest$171Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$374FlexibilityNo cancel feeOn-time71%

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