Cheap flights from Colorado (CO) to San Francisco (SFO)

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How to find the cheapest flight from
Colorado to San Francisco (SFO)

How far in advance should I book a flight from Colorado to San Francisco?

Travelers have found it’s best to book a flight 35 days in advance to save up to 7% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 35 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Colorado to San Francisco 1-2 weeks in advance for as low as $99, or $105 for flights within the next 24 hours.

What is the cheapest month to fly from Colorado to San Francisco?

August can be a great time to fly to San Francisco from Colorado with a flight ticket averaging about $108. Cheapflights users have found deals in the month of August for as cheap as $48. The most expensive prices can be found in the month of June.

Cheap flights from Colorado to San Francisco in March, April 2021

2 Apr - 4 Apr
$27pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
23 Mar - 27 Mar
$29pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
22 Mar - 25 Mar
$32pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl

Colorado to San Francisco 2021 flight deals

2 Apr - 4 Apr
$27pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
23 Mar - 27 Mar
$29pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
22 Mar - 25 Mar
$32pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to San Francisco from Colorado

2 Apr - 4 Apr
$27pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
23 Mar - 27 Mar
$29pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
22 Mar - 25 Mar
$32pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Colorado to San Francisco

9 Mar - 13 Mar
$32pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
9 Mar - 17 Mar
$33pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl
10 Mar - 14 Mar
$36pp
DEN
Denver Intl
Frontier
Non-Stop
SFO
San Francisco
SFO
San Francisco
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to San Francisco from Colorado

5:05 am - 6:48 am
United Airlines
Nonstop
2h 43m
DEN - SFO
United Airlines
$49
United
11:10 am - 11:45 am
Multiple Airlines
2 Stops
25h 35m
DEN - SFO
Multiple Airlines
$57
Gotogate
4:25 am - 6:52 am
Frontier
2 Stops
27h 27m
DEN - SFO
Frontier
$60
Gotogate

Related info for your journey

Flight FAQs

From Colorado to San Francisco

Are flight prices decreasing from Colorado to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Colorado and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Colorado to San Francisco to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Colorado to San Francisco are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Colorado to San Francisco have flexible cancellations due to COVID-19?

Some of our airline partners flying from Colorado to San Francisco have new flexible policies in place due to COVID-19. United Airlines, Frontier, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Can I find flights from Colorado to San Francisco for under $100 on Cheapflights?

Yes, there are multiple flights from Colorado to San Francisco for under $100. The cheapest flight booked recently is on Frontier for just $27, but on average you can expect to pay $44.

Are there nonstop flights from Colorado to San Francisco for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Colorado to San Francisco under $100. A good price for a nonstop flight from Colorado to San Francisco is less than $44.

Are there last-minute flights available from Colorado to San Francisco for under $100?

There are currently 20+ open flights from Colorado to San Francisco within the next 7 days for less than $100.

What days are nonstop flights available from Colorado to San Francisco?

You can find nonstop flights on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

This flight path from Colorado to San Francisco was viewed by 230 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the most popular airlines that fly from Colorado to San Francisco?

When booking a flight from Colorado to San Francisco, you may want to consider flying on Major Airline, American Airlines or Alaska Airlines as they are the most popular for this route.

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

While some choose either Aspen Pitkin County - San Francisco or Vail Eagle County - San Francisco, Denver Intl - San Francisco is the most popular route from Colorado to San Francisco.

What are the cheapest Flights from Colorado to San Francisco?

While on average a flight from Colorado to San Francisco is generally $476, our data shows the cheapest flight currently is $64. When looking at the most popular route, (Denver Intl - San Francisco), you can expect to pay $46 for that flight.

What are the most reliable airlines from Colorado to San Francisco?

Before booking your flight to San Francisco from Colorado, check out the most reliable airlines to get you to your destination on time: Frontier (98%), ANA (95%), Asiana Airlines( 91%).

How long is the flight from Colorado to San Francisco?

Airlines like United Airlines and Frontier fly from Colorado to San Francisco in about 2h 22m. The time it takes to get you to your destination is usually consistent. Most flights are nonstop.

What is the cheapest airline to fly from Colorado to San Francisco round-trip?

Cheapflights users have booked flights from Colorado to San Francisco round-trip from $27.

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

The cheapest airlines for a one-way flight from Colorado to San Francisco are Frontier ($4) and United Airlines ($49).

Destination information for San Francisco

Flight duration
2h 45m
Average temperature for March in San Francisco
66.2 °F
Avg rainfall for March in San Francisco
1.6 ″

Airports servicing

Colorado Springs (COS)
Denver (DEN)
Durango (DRO)
Eagle County Rgnl (EGE)
Loveland Northern Colorado (FNL)

Airports servicing San Francisco

Top 6 airlines flying from Colorado to San Francisco

Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$58 $164 No cancel fee 62%
Southwest
$98 $286 No cancel fee 63%
Delta
$87 $320 No cancel fee N/A
American Airlines
$57 $335 No cancel fee 71%
United Airlines
$93 $440 No cancel fee 69%
Alaska Airlines
$179 $521 No cancel fee 75%
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