$81+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
May 5 — May 121
1 adult, Economy
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Find cheap flights from Colorado to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 30, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $97 (Cheapflightsfares) |
One-way from | $81 (Southwest) |
Popular in | December |
Cheapest in | February |
Average price | $205 |
Good round-trip deal | $194 or less |
Good one-way deal | $113 or less |
Find flight deals from Colorado to San Francisco
Cheapest flights from Colorado to San FranciscoExplore 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 April 30, 2025.
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 April 30, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 7/310:29 pmDEN - SFO
Nonstop2h 55mFrontier
Tue 7/86:37 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 4/29![Frontier logo]()
$97
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2510:29 pmDEN - SFO
Nonstop2h 50mMultiple Airlines
Sun 7/2711:59 pmSFO - DEN
1 stop14h 44mMultiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$184
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/255:00 amDEN - SFO
Nonstop2h 42mUnited Airlines
Sat 6/148:45 pmSFO - DEN
Nonstop2h 33mUnited Airlines
Deal found 4/28![United Airlines logo]()
$188
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/224:30 pmDEN - SFO
1 stop5h 30mAmerican Airlines
Tue 5/276:19 amSFO - DEN
1 stop4h 54mAmerican Airlines
Deal found 4/28![American Airlines logo]()
$208
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/156:58 pmGJT - SFO
1 stop4h 41mAmerican Airlines
Sun 8/176:50 pmSFO - GJT
1 stop4h 30mAmerican Airlines
Deal found 4/28![American Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 4/28. 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.
Tue 6/36:45 pmDEN - SFO
1 stop5h 10mSouthwest
Wed 6/115:25 amSFO - DEN
2 stops8h 25mSouthwest
Deal found 4/28![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 4/28. 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 5/286:05 amGJT - SFO
1 stop3h 51mDelta
Sat 5/315:05 pmSFO - GJT
1 stop4h 28mDelta
Deal found 4/28![Delta logo]()
$245
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 8/125:40 amDEN - SFO
1 stop4h 26mDelta
Sat 8/1611:05 amSFO - DEN
1 stop6h 08mDelta
Deal found 4/28![Delta logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 8/217:00 pmDEN - SFO
1 stop15h 38mSun Country Air
Sun 8/247:30 amSFO - DEN
1 stop8h 13mSun Country Air
Deal found 4/28![Sun Country Air logo]()
$260
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/2811:40 amDEN - SFO
2 stops8h 42mAlaska Airlines
Wed 6/48:39 amSFO - DEN
2 stops14h 26mAlaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 6/82:39 pmMTJ - SFO
1 stop9h 17mAmerican Airlines
Tue 6/1011:59 pmSFO - MTJ
1 stop8h 59mAmerican Airlines
Deal found 4/29![American Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 4/29. 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 6/412:00 pmASE - SFO
1 stop6h 48mDelta
Sun 6/810:55 amSFO - ASE
1 stop5h 56mDelta
Deal found 4/29![Delta logo]()
$267
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 April 30, 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
Sat 8/2
9:36 pm-11:25 pm
Nonstop2h 49m
San Francisco
Sat 8/9
6:37 am-10:17 am
Nonstop2h 40m
$97
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Thu 5/22
7:00 am-8:47 am
Nonstop2h 47m
San Francisco
Sun 5/25
5:45 pm-4:00 am
1 stop9h 15m
$176
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Sun 5/25
5:00 am-6:42 am
Nonstop2h 42m
San Francisco
Sat 6/14
8:45 pm-12:18 am
Nonstop2h 33m
$188
Grand JunctionSan Francisco
GJT - SFO
GJTSFO
Grand Junction Regnl
Fri 8/15
6:58 pm-10:39 pm
1 stop4h 41m
San Francisco
Sun 8/17
6:50 pm-12:20 am
1 stop4h 30m
$217
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Tue 6/3
7:15 pm-8:55 pm
Nonstop2h 40m
San Francisco
Wed 6/11
5:55 pm-9:20 pm
Nonstop2h 25m
$225
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Wed 5/28
7:05 pm-11:21 pm
1 stop5h 16m
San Francisco
Wed 6/4
8:39 am-12:05 am
2 stops14h 26m
$235
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Fri 5/23
6:25 pm-12:21 am
1 stop6h 56m
San Francisco
Sun 5/25
5:55 am-12:04 pm
1 stop5h 09m
$245
Grand JunctionSan Francisco
GJT - SFO
GJTSFO
Grand Junction Regnl
Wed 5/28
6:05 am-8:56 am
1 stop3h 51m
San Francisco
Sat 5/31
5:05 pm-10:33 pm
1 stop4h 28m
$245
DenverSan Francisco
DEN - SFO
DENSFO
Denver Intl
Thu 8/21
7:00 pm-9:38 am
1 stop15h 38m
San Francisco
Sun 8/24
7:30 am-4:43 pm
1 stop8h 13m
$260
MontroseSan Francisco
MTJ - SFO
MTJSFO
Montrose County
Sun 6/8
2:39 pm-10:56 pm
1 stop9h 17m
San Francisco
Tue 6/10
11:59 pm-9:58 am
1 stop8h 59m
$265
Showing 1-10 of 51 results
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 $393). 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 April 30, 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 April 30, 2025.
The most flights from USCO to SFO are scheduled on a Tuesday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 April 30, 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.
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
Food
6.7
Overall
8.1
Comfort
8.2
Boarding
8.3
Crew
8.8
Entertainment
6.6
Reviews
1 / 11
10.0
ExcellentDena,Dec 2024
LAS - BDL
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.
Traveling to a place near Colorado?
Book flights to Colorado if you plan to visit one of these locationsRoseville
Mountain View
Santa Cruz
Livermore
South San Francisco
Turlock
Manteca
Fairfield
Richmond
Watsonville
Hollister
Newark
Milpitas
Antioch
Sausalito
Hayward
Alameda
Sunnyvale
Campbell
Daly City
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 April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$45 | Average$126 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$95 | Average$113 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$141 | Average$346 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$152 | Average$467 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$303 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$403 | FlexibilityNo cancel fee | On-time71% |