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Cheap flights from San Francisco to Denver from $121

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
3 set — 10 set1
1 adult

Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in October or January, booked 28 days in advance, depart on a Saturday or Friday and return on a Monday

Cheap 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 29 agosto 2025.

Round-trip from

$270

One-way from

$121

Popular in

June

Cheapest in

October

Average price

$349
Alaska Airlines
  • Alaska Airlines
  • 22/10-29/10
  • 2 total stops
  • 13h 35m total
  • San Francisco to Denver
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United Airlines
  • United Airlines
  • 11/10
  • Nonstop
  • 2h 35m total
  • San Francisco to Denver
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Highest demand for flights based on searches. 11% potential increase in price ($70 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from San Francisco to Denver

Cheapest flights from San Francisco to Denver
Explore the most affordable flight options available from San Francisco to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 agosto 2025.

mer 22/1010:26SFO - DEN
1 stop7h 44mAlaska Airlines
mar 28/1011:31DEN - SFO
1 stop5h 51mAlaska Airlines
Deal found 28/8$270
dom 28/905:25SFO - DEN
Nonstop2h 25mSouthwest
mer 1/1008:30DEN - SFO
Nonstop2h 35mSouthwest
Deal found 27/8$271
gio 13/1107:00SFO - DEN
1 stop11h 06mAlaska Airlines
mer 19/1111:31DEN - SFO
1 stop6h 51mAlaska Airlines
Deal found 27/8$290
mer 22/1010:26SFO - DEN
1 stop12h 21mAlaska Airlines
gio 30/1012:49DEN - SFO
1 stop11h 57mAlaska Airlines
Deal found 26/8$296
mer 22/1010:26SFO - DEN
1 stop7h 44mAlaska Airlines
sab 25/1007:01DEN - SFO
1 stop8h 00mAlaska Airlines
Deal found 28/8$300
ven 26/920:52SFO - DEN
Nonstop2h 37mUnited Airlines
dom 28/906:03DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 27/8$302
sab 25/1008:41SFO - DEN
1 stop9h 29mAlaska Airlines
mer 29/1007:00DEN - SFO
1 stop7h 50mAlaska Airlines
Deal found 26/8$305
mer 22/1010:26SFO - DEN
1 stop12h 21mAlaska Airlines
ven 24/1007:01DEN - SFO
1 stop8h 00mAlaska Airlines
Deal found 26/8$307
dom 7/1207:00SFO - DEN
1 stop11h 24mAlaska Airlines
ven 12/1218:59DEN - SFO
1 stop5h 49mAlaska Airlines
Deal found 28/8$311
mer 1/1014:42SFO - DEN
1 stop6h 20mAlaska Airlines
mer 8/1007:01DEN - SFO
1 stop8h 00mAlaska Airlines
Deal found 27/8$323
sab 25/1008:41SFO - DEN
1 stop14h 06mAlaska Airlines
gio 30/1019:19DEN - SFO
1 stop5h 27mAlaska Airlines
Deal found 26/8$325

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Denver 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 647,157 searches. Data last updated 29 agosto 2025.
Use the filters below to find and compare flights from San Francisco to Denver that are best for you.

Fly from

San Francisco

Fly to

Denver

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

mer 22/10

10:26-19:10

1 stop7h 44m

Denver Intl

mer 29/10

11:31-16:22

1 stop5h 51m

$270

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

mer 22/10

10:26-19:10

1 stop7h 44m

Denver Intl

mar 28/10

11:31-16:22

1 stop5h 51m

$270

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

mar 7/10

10:26-19:10

1 stop7h 44m

Denver Intl

mer 8/10

07:01-14:01

1 stop8h 00m

$270

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

dom 28/9

05:25-08:50

Nonstop2h 25m

Denver Intl

mer 1/10

08:30-10:05

Nonstop2h 35m

$271

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

ven 10/10

20:52-00:29

Nonstop2h 37m

Denver Intl

sab 11/10

21:10-22:57

Nonstop2h 47m

$271

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

lun 29/9

19:45-23:10

Nonstop2h 25m

Denver Intl

mer 1/10

08:30-10:05

Nonstop2h 35m

$271

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

gio 13/11

07:00-19:06

1 stop11h 06m

Denver Intl

mar 18/11

11:31-17:22

1 stop6h 51m

$290

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

lun 10/11

07:00-23:51

1 stop15h 51m

Denver Intl

mer 19/11

11:31-17:22

1 stop6h 51m

$290

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

gio 13/11

07:00-19:06

1 stop11h 06m

Denver Intl

mer 19/11

11:31-17:22

1 stop6h 51m

$290

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

mer 22/10

10:26-19:10

1 stop7h 44m

Denver Intl

gio 30/10

19:19-23:46

1 stop5h 27m

$290

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 20 results
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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 return 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

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Denver. Price data was last updated on 22 August 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from San Francisco to Denver (average of $988). Flying from San Francisco to Denver in December is currently the most expensive (average of $1,617). 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 29 agosto 2025.

It’s optimal to fly from San Francisco to Denver at midday. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the morning.

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?

    Flights from San Francisco to Denver Intl have been viewed 30 times in the past calendar month.

  • How long is the flight from San Francisco to Denver?

    A quick flight from San Francisco to Denver can take about 7h 44m. Alaska Airlines provides one of the quickest options available for as low as $270. San Francisco and Denver are separated by a distance of 1551 km.

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

    The top 3 most reliable airlines when flying from San Francisco to Denver are Asiana Airlines (76%), Air Canada (72%) and Virgin Australia (70%).

  • 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 holiday 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, March is the cheapest month in which you can book a flight from San Francisco to Denver (average of $988). Flying from San Francisco to Denver in December is currently the most expensive (average of $1,617). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Why should you use Cheapflights to find cheap flight tickets from San Francisco to Denver?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Denver from San Francisco.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to Denver flexibly with Cheapflights today.

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

Yes! Start tracking prices for San Francisco to Denver flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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