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$67+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap 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 March 22, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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.
Thu 4/237:15 am
DEN
-
SFO
Nonstop2h 58m
Frontier
Mon 4/276:00 am
SFO
-
DEN
Nonstop2h 47m
Frontier
Deal found 3/17$138
This Frontier deal was found by Cheapflights users on 3/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Thu 5/75:25 pm
SFO
-
DEN
1 stop6h 06m
Frontier
Deal found 3/18$139
This Frontier deal was found by Cheapflights users on 3/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Fri 5/812:52 pm
SFO
-
DEN
Nonstop2h 51m
Frontier
Deal found 3/18$140
This CheapOair deal was found by Cheapflights users on 3/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:26 am
DEN
-
SFO
1 stop15h 47m
Frontier
Sat 4/186:00 am
SFO
-
DEN
Nonstop2h 47m
Frontier
Deal found 3/19$141
This Super.com deal was found by Cheapflights users on 3/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:47 am
DEN
-
SFO
Nonstop2h 55m
Frontier
Wed 5/66:00 am
SFO
-
DEN
Nonstop2h 52m
Frontier
Deal found 3/20$142
This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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.
Wed 5/139:47 am
DEN
-
SFO
Nonstop2h 55m
Frontier
Mon 5/186:00 am
SFO
-
DEN
Nonstop2h 52m
Frontier
Deal found 3/17$143
This Frontier deal was found by Cheapflights users on 3/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:30 pm
DEN
-
SFO
Nonstop2h 53m
Frontier
Thu 4/3011:56 am
SFO
-
DEN
Nonstop2h 51m
Frontier
Deal found 3/18$144
This Super.com deal was found by Cheapflights users on 3/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Wed 4/156:00 am
SFO
-
DEN
Nonstop2h 47m
Frontier
Deal found 3/18$145
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Mon 4/279:20 pm
SFO
-
DEN
1 stop5h 39m
Frontier
Deal found 3/18$146
This Super.com deal was found by Cheapflights users on 3/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Sun 4/196:00 am
SFO
-
DEN
Nonstop2h 47m
Frontier
Deal found 3/17$147
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:25 pm
DEN
-
SFO
Nonstop3h 00m
Frontier
Sat 4/186:00 am
SFO
-
DEN
Nonstop2h 47m
Frontier
Deal found 3/20$148
This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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.
Sat 5/99:47 am
DEN
-
SFO
Nonstop2h 55m
Frontier
Sun 5/315:25 pm
SFO
-
DEN
1 stop6h 06m
Frontier
Deal found 3/17$149

Find 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Cheapflightsfares)

One-way from

$67
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$283

Good round-trip deal

$283 or less

Good one-way deal

$109 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. 4% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 22, 2026.
Use the filters below to find and compare flights from Colorado to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 5/2

5:45 am-11:50 am

1 stop7h 05m

San Francisco

Sat 5/9

6:00 am-1:55 pm

2 stops6h 55m

$242

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 5/9

8:45 am-7:20 pm

2 stops11h 35m

San Francisco

Sun 5/10

9:10 am-4:50 pm

1 stop6h 40m

$268

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 5/5

1:15 pm-8:05 pm

2 stops7h 50m

San Francisco

Tue 5/12

8:20 am-5:05 pm

2 stops7h 45m

$297

Grand JunctionSan Francisco

GJT - SFO

GJTSFO

Grand Junction Regnl

Fri 7/3

6:56 pm-11:52 pm

1 stop5h 56m

San Francisco

Sat 7/25

5:00 pm-9:50 pm

1 stop3h 50m

$301

MontroseSan Francisco

MTJ - SFO

MTJSFO

Montrose County

Tue 4/28

8:45 am-5:30 pm

1 stop9h 45m

San Francisco

Mon 5/4

7:25 am-7:10 pm

2 stops10h 45m

$305

MontroseSan Francisco

MTJ - SFO

MTJSFO

Montrose County

Sun 4/5

4:05 pm-5:49 pm

Nonstop2h 44m

San Francisco

Thu 4/9

6:40 am-12:41 pm

1 stop5h 01m

$319

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 4/8

10:10 am-3:20 pm

2 stops6h 10m

San Francisco

Tue 4/14

8:20 am-5:05 pm

2 stops7h 45m

$323

HaydenSan Francisco

HDN - SFO

HDNSFO

Hayden Yampa Valley

Sun 4/5

7:00 am-11:25 am

1 stop5h 25m

San Francisco

Thu 4/9

5:00 am-12:40 pm

1 stop6h 40m

$329
Quickest round-trip

AspenSan Francisco

ASE - SFO

ASESFO

Aspen Pitkin County

Fri 5/29

9:40 am-11:19 am

Nonstop2h 39m

San Francisco

Sun 5/31

4:25 pm-7:55 pm

Nonstop2h 30m

$329

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 4/27

8:10 pm-12:10 am

1 stop5h 00m

San Francisco

Thu 4/30

7:25 am-2:55 pm

2 stops6h 30m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $58). Flying from Colorado to San Francisco in August is currently the most expensive (average of $125). 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 March 22, 2026.

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 afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 28% 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 March 14, 2026.

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. Monday 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 March 22, 2026.

The most flights from USCO to SFO are scheduled on a Friday (54 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (35 on average).

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 96 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 58m. Fly via Southwest, American Airlines, or United Airlines to get the fastest option. Colorado and San Francisco are separated by a distance of 802 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?

    $45 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Allegiant Air and Southwest, with prices starting from $50 and $78, respectively.

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

    While some choose either Colorado Springs - San Francisco or Durango La Plata 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 Air China (94%), Volaris (91%) or Frontier (90%) 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 $986, our data indicates the cheapest price to be $64. The most popular route (Denver Intl - San Francisco), is priced around $158.

  • 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 $58). Flying from Colorado to San Francisco in August is currently the most expensive (average of $125). 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
South San Francisco
Santa Clara
Santa Cruz
Livermore
Roseville
Watsonville
Rancho Cordova
San Bruno
San Ramon
Sunnyvale
Vacaville
San Carlos
Redwood City
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove
Rohnert Park

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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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$72Average$187FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$152Average$329FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$170Average$394FlexibilityNo cancel feeOn-time69%
DeltaCheapest$210Average$308FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$379FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$237Average$306FlexibilityNo cancel feeOn-time75%

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