Question 1

How popular is this Denver to San Francisco flight route?

Accepted Answer

This flight path from Denver Intl to San Francisco was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

What are the cheapest airlines flying from Denver to San Francisco round-trip?

Accepted Answer

Flying on Southwest is currently your cheapest option to San Francisco, with prices starting at £104. Additional return tickets that might be worth considering are offered by Frontier and United Airlines, with the lowest prices starting at £117 and £127, respectively. Users have found that Southwest is 30% cheaper than the other options available to this destination.

Question 3

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

Accepted Answer

For one-way options, check prices for Southwest. According to our data, you can fly for as low as £69. Users have also found prices from £72 and £73 on Delta and United Airlines, respectively.

Question 4

How far ahead should I book a flight from Denver to San Francisco?

Accepted Answer

The best time to book flights from Denver to San Francisco is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 5

What is the cheapest month to book a flight from Denver to San Francisco?

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from Denver to San Francisco (average of £538). Flying from Denver to San Francisco in July is currently the most expensive (average of £803). 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.

Question 6

What is the cheapest day to fly from Denver to San Francisco?

Accepted Answer

Travellers seeking maximum savings on their Denver to San Francisco flight should consider departing on Friday 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.

Question 7

Weekly flight availability from Denver to San Francisco

Accepted Answer

The most flights from DEN to SFO are scheduled on a Tuesday (48 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Question 9

E

Accepted Answer

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 10

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

Accepted Answer

The top 3 most reliable airlines when flying from Denver to San Francisco are Air China (100%), ANA (93%) and Emirates (90%).

Question 11

What is the cheapest day to fly round-trip from Denver to San Francisco?

Accepted Answer

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 127% on your flight compared to booking on days when demand is much higher.

Question 12

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

Accepted Answer

To save on the cost of your flight from Denver to San Francisco, book at least 23 days before your planned departure. Booking around this time can save you about 84% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £131 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £243.

Question 13

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

Accepted Answer

Our data shows that February tends to be the cheapest month to fly to San Francisco from Denver. Users have commonly found prices around £151 for the month, but tickets can be as low as £41. Due to multiple factors, prepare for potentially higher prices in June.

Question 14

What is the cheapest time of day to fly from DEN to SFO?

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Denver to San Francisco by exploring options for tickets at midday.

Question 15

What airports do I use to fly from Denver to San Francisco?

Accepted Answer

You will need to book a flight from Denver Intl to San Francisco if you want to fly from Denver to San Francisco. At least 1 airline has flights from Denver Intl (DEN) to San Francisco (SFO) on a regular basis. There are 37 flights to San Francisco from the Denver airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DEN to SFO to be around 2h 43m.

Question 16

Can I find deals for flights from Denver to San Francisco that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Denver to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 17

How can I find direct flights from Denver to San Francisco?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Francisco.

Question 18

Can I find deals for business class flights from Denver to San Francisco?

Accepted Answer

Yes. Cheapflights offers flight deals from Denver 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.

Question 19

How does Cheapflights help users find flights from Denver to San Francisco?

Accepted Answer

Cheapflights makes it easy to find Denver to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 20

Why should you use Cheapflights to find cheap flight tickets from Denver to San Francisco?

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Denver to San Francisco for you. Better yet — we are completely free to use.

Question 21

Can Cheapflights find flights from Denver to San Francisco with no change fees?

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to San Francisco, users can toggle the no change fees filter when performing a flight search.

Question 22

Can Cheapflights notify me if prices for flights from Denver to San Francisco become cheaper?

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Round-trip from	£104
One-way from	£69
Popular in	June
Cheapest in	February
Average price	£160

Cheap flights from Denver to San Francisco from £69

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Denver Intl to San Francisco are usually found in February or September, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Denver to San Francisco

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Find flight deals from Denver to San Francisco

Cheapest flights from Denver to San FranciscoExplore the most affordable flight options available from Denver to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2025.

Explore the most affordable flight options available from Denver to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to San Francisco that are best for you.

Best time to book a flight from Denver to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Denver with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Denver to San Francisco

How far ahead should I book a flight from Denver to San Francisco?

Use this chart to determine the optimal time to book a return flight from Denver to San Francisco. Price data was last updated on 27 June 2025.

What is the cheapest month to book a flight from Denver to San Francisco?

What is the cheapest time of day to fly from DEN to SFO?

Find hourly flight availability from Denver 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 9 July 2025.

Weekly flight availability from Denver to San Francisco

Explore weekly flight availability from Denver 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 9 July 2025.

Reviews of airlines servicing San Francisco

Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Denver to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Denver 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 airports do I use to fly from Denver to San Francisco?

How popular is this Denver to San Francisco flight route?

What are the cheapest airlines flying from Denver to San Francisco round-trip?

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

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

Can I find deals for flights from Denver to San Francisco that include hotel bookings?

How can I find direct flights from Denver to San Francisco?

Can I find deals for business class flights from Denver to San Francisco?

What is the cheapest month to book a flight from Denver to San Francisco?

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Why should you use Cheapflights to find cheap flight tickets from Denver to San Francisco?

Can Cheapflights find flights from Denver to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Denver to San Francisco become cheaper?

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Cheapest flights from Denver to San Francisco
Explore the most affordable flight options available from Denver to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2025.