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Cheap flights from Denver to San Francisco from £83

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Denver to San Francisco

Enter your travel dates to find the best prices.

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 2 August 2026.

Fri 28/822:29
DEN
-
SFO
Nonstop2h 49m
Frontier
Fri 4/906:00
SFO
-
DEN
Nonstop2h 41m
Frontier
Deal found 31/7£151
Mon 26/1009:45
DEN
-
SFO
1 stop6h 06m
Alaska Airlines
Mon 26/1016:43
SFO
-
DEN
1 stop6h 16m
Alaska Airlines
Deal found 28/7£171
Tue 15/920:06
DEN
-
SFO
1 stop13h 40m
Alaska Airlines
Sat 19/907:08
SFO
-
DEN
1 stop11h 18m
Alaska Airlines
Deal found 28/7£176
Fri 11/906:17
DEN
-
SFO
1 stop7h 43m
Alaska Airlines
Tue 15/908:25
SFO
-
DEN
1 stop10h 01m
Alaska Airlines
Deal found 28/7£179
Fri 25/906:17
DEN
-
SFO
1 stop9h 28m
Alaska Airlines
Tue 29/915:25
SFO
-
DEN
1 stop4h 48m
Alaska Airlines
Deal found 30/7£180
Wed 9/915:45
DEN
-
SFO
Nonstop2h 35m
Southwest
Mon 14/906:20
SFO
-
DEN
Nonstop2h 30m
Southwest
Deal found 30/7£191
Sat 3/1012:31
DEN
-
SFO
1 stop8h 00m
Alaska Airlines
Tue 6/1007:08
SFO
-
DEN
2 stops9h 53m
Alaska Airlines
Deal found 31/7£191
Wed 26/813:43
DEN
-
SFO
1 stop6h 23m
Alaska Airlines
Thu 3/908:25
SFO
-
DEN
1 stop14h 31m
Alaska Airlines
Deal found 27/7£193
Tue 20/1012:22
DEN
-
SFO
1 stop10h 53m
Delta
Mon 16/1112:05
SFO
-
DEN
1 stop10h 53m
Delta
Deal found 28/7£195
Fri 11/906:17
DEN
-
SFO
1 stop7h 43m
Alaska Airlines
Thu 17/908:25
SFO
-
DEN
1 stop14h 19m
Alaska Airlines
Deal found 28/7£196

Find flight deals from Denver to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Francisco (SFO). 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 2 August 2026.

Round-trip from

£151

One-way from

£83

Popular in

July

Cheapest in

January

Average price

£207

Good one-way deal

£166 or less
Frontier
  • Frontier
  • 28/8-4/9
  • Nonstop
  • 5h 30m total
  • Denver to San Francisco
Search Deals
Frontier
  • Frontier
  • 7/9
  • 1 total stop
  • 29h 12m total
  • Denver to San Francisco
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Price to beat on a one-way flight from Denver Intl to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Denver 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 858,174 searches. Data last updated 2 August 2026.
Use the filters below to find and compare flights from Denver to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 25/8

06:17-13:00

1 stop7h 43m

San Francisco

Tue 1/9

10:32-19:26

1 stop7h 54m

£176

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 18/9

20:06-10:53

1 stop15h 47m

San Francisco

Sun 20/9

07:08-23:44

1 stop15h 36m

£195

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 27/8

15:10-20:30

2 stops6h 20m

San Francisco

Sat 29/8

05:00-12:35

2 stops6h 35m

£213

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 2/10

20:06-12:41

1 stop17h 35m

San Francisco

Sun 4/10

08:20-23:59

1 stop14h 39m

£217

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 1/10

08:08-16:17

2 stops9h 09m

San Francisco

Mon 5/10

10:40-18:01

1 stop6h 21m

£222

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 27/8

15:10-20:30

2 stops6h 20m

San Francisco

Mon 31/8

06:45-14:30

2 stops6h 45m

£229
Fastest return journey

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 15/8

19:45-21:25

Nonstop2h 40m

San Francisco

Tue 18/8

13:25-16:55

Nonstop2h 30m

£234

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 2/10

13:43-23:28

2 stops10h 45m

San Francisco

Mon 5/10

16:43-23:59

1 stop6h 16m

£248

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 18/8

12:35-19:15

2 stops7h 40m

San Francisco

Wed 19/8

11:15-17:05

1 stop4h 50m

£249

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 28/8

15:10-20:30

2 stops6h 20m

San Francisco

Sun 30/8

05:40-12:30

1 stop5h 50m

£252

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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.
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 Denver to San Francisco

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

The best time to book flights from Denver to San Francisco is 74 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.

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

Currently, January is the cheapest month in which you can book a flight from Denver to San Francisco (average of £175). Flying from Denver to San Francisco in July is currently the most expensive (average of £278). 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 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 2 August 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 85% on flights from Denver to San Francisco by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Denver to San Francisco?

Airfare is typical for this route at the moment.

Denver to San Francisco flights typically cost between £147 and £285 in August.
The cheapest return price found within the last 5 days was £151 on Frontier (28 Aug–4 Sept).

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.

  • How popular is this Denver to San Francisco flight route?

    This flight path from Denver Intl to San Francisco was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as £213, Alaska Airlines can have you in San Francisco from Denver in 6h 20m. The distance between Denver and San Francisco is about 964 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The top 3 most reliable airlines when flying from Denver to San Francisco are Air Canada (56%), United Airlines (56%) and Virgin Australia (53%).

  • What are the cheapest flights from Denver to San Francisco?

    While on average a flight from Denver to San Francisco is generally £166, our data shows the cheapest flight currently is £128. When looking at the most popular route, (Denver Intl - San Francisco), you can expect to pay £191 for that flight.

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

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

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

    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.

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

    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.

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

    Currently, January is the cheapest month in which you can book a flight from Denver to San Francisco (average of £175). Flying from Denver to San Francisco in July is currently the most expensive (average of £278). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Newark
Bodega Bay
Sunnyvale
South San Francisco

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Denver to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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.

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

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.

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

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.

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