Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in January or March, booked 53 days in advance, depart on a Saturday or Thursday and return on a Monday
Find flight deals from San Francisco to Denver
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Popular in
June
Cheapest in
January
Average price
C$ 379
Good one-way deal
C$ 425 or less
Highest demand for flights based on searches. 9% potential increase in price (C$ 43 potential increase over avg. RT price).
Best time to book a flight from San Francisco to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from San Francisco 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 San Francisco to Denver
Prices
Airlines
Delays
How far ahead should I book a flight from San Francisco to Denver?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Denver. Price data was last updated on 5 December 2025.
Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Francisco to Denver?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Denver (average of C$ 39). Flying from San Francisco to Denver in June is currently the most expensive (average of C$ 146). 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 SFO to DEN?
Find hourly flight availability from San Francisco to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
When flying from San Francisco to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 11% versus a flight in the morning.
Weekly flight availability from San Francisco to Denver
Explore weekly flight availability from San Francisco to Denver. 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 12 December 2025.
The most flights from SFO to DEN are scheduled on a Thursday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).
How often are flights from San Francisco to Denver delayed?
About 17% of weekly flights between San Francisco and Denver have experienced delays in the past year, with the average delay time being 143 minutes.
What is the most punctual flight time for San Francisco to Denver flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to Denver flights?
Over the past year, United Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this San Francisco to Denver flight route?
Within the past month, 45 users have taken a look at flights from San Francisco to Denver Intl.
What are the most reliable airlines from San Francisco to Denver?
Before booking your flight to Denver from San Francisco, check out the most reliable airlines to get you to your destination on time: Asiana Airlines (88%), United Airlines (87%), Virgin Australia( 87%).
Can I find deals for flights from San Francisco to Denver that include hotel bookings?
Yes. In addition to deals on San Francisco to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Denver?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Denver.
Can I find deals for business class flights from San Francisco to Denver?
Yes. Cheapflights offers flight deals from San Francisco to Denver 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 San Francisco to Denver?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Denver (average of C$ 39). Flying from San Francisco to Denver in June is currently the most expensive (average of C$ 146). 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.
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Francisco to Denver?
Deals for San Francisco to Denver flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Denver?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Denver for you. Better yet — we are completely free to use.
Can Cheapflights find flights from San Francisco to Denver with no change fees?
Yes, we can. To see specific flights from San Francisco to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Francisco to Denver become cheaper?
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!
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