Cheap flights from Denver to San Francisco from £49

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
24 Apr — 1 May1
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 25 March 2026.

Thu 7/522:29
DEN
-
SFO
Nonstop2h 54m
Frontier
Thu 14/522:04
SFO
-
DEN
1 stop10h 57m
Frontier
Deal found 23/3£143
Mon 11/505:20
DEN
-
SFO
Nonstop2h 50m
United Airlines
Thu 14/521:08
SFO
-
DEN
Nonstop2h 51m
United Airlines
Deal found 23/3£147
Tue 12/520:25
DEN
-
SFO
Nonstop2h 45m
Southwest
Wed 13/506:20
SFO
-
DEN
Nonstop2h 30m
Southwest
Deal found 24/3£154
Mon 11/517:10
DEN
-
SFO
2 stops6h 15m
Southwest
Thu 14/519:15
SFO
-
DEN
Nonstop2h 35m
Southwest
Deal found 24/3£158
Sat 2/507:25
DEN
-
SFO
1 stop7h 02m
Delta
Wed 20/516:55
SFO
-
DEN
1 stop4h 45m
Delta
Deal found 24/3£162
Wed 3/614:05
DEN
-
SFO
2 stops6h 00m
Southwest
Mon 8/616:00
SFO
-
DEN
1 stop5h 55m
Southwest
Deal found 24/3£163
Sat 9/508:45
DEN
-
SFO
2 stops9h 40m
Southwest
Sat 16/513:50
SFO
-
DEN
1 stop7h 25m
Southwest
Deal found 23/3£166
Tue 28/414:05
DEN
-
SFO
2 stops6h 00m
Southwest
Tue 12/508:20
SFO
-
DEN
2 stops7h 45m
Southwest
Deal found 24/3£166
Sat 9/508:45
DEN
-
SFO
2 stops9h 40m
Southwest
Tue 12/505:40
SFO
-
DEN
1 stop7h 00m
Southwest
Deal found 23/3£167
Thu 14/521:20
DEN
-
SFO
Nonstop2h 45m
Southwest
Sun 17/505:50
SFO
-
DEN
Nonstop2h 35m
Southwest
Deal found 24/3£169

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 25 March 2026.

Round-trip from

£143

One-way from

£49

Popular in

July

Cheapest in

April

Average price

£211
Frontier
  • Frontier
  • 7/5-14/5
  • 1 total stop
  • 13h 51m total
  • Denver to San Francisco
Frontier
  • Frontier
  • 22/4
  • 1 total stop
  • 14h 41m total
  • Denver to San Francisco
Highest demand for flights based on searches. 5% potential increase in price (£7 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Average for round-trip flights in March 2026

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 25 March 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

Sat 9/5

08:45-17:25

2 stops9h 40m

San Francisco

Sat 16/5

13:50-20:00

1 stop5h 10m

£166

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 7/5

08:40-13:45

2 stops6h 05m

San Francisco

Mon 11/5

15:40-23:45

2 stops7h 05m

£192

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 2/5

08:45-19:20

2 stops11h 35m

San Francisco

Sun 3/5

05:50-09:25

Nonstop2h 35m

£193

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 7/5

08:40-13:45

2 stops6h 05m

San Francisco

Thu 14/5

06:20-12:25

1 stop5h 05m

£247

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 27/4

20:10-00:10

1 stop5h 00m

San Francisco

Thu 30/4

07:25-14:55

2 stops6h 30m

£248

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 20/6

18:05-21:55

1 stop4h 50m

San Francisco

Tue 23/6

12:10-21:00

2 stops7h 50m

£255

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 8/4

10:10-15:20

2 stops6h 10m

San Francisco

Sat 11/4

06:15-12:00

1 stop4h 45m

£267

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 21/4

14:05-19:05

2 stops6h 00m

San Francisco

Thu 23/4

07:25-14:55

2 stops6h 30m

£286
Fastest return journey

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 25/6

06:15-11:20

2 stops6h 05m

San Francisco

Fri 3/7

06:05-11:30

1 stop4h 25m

£290

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 4/4

11:05-16:30

2 stops6h 25m

San Francisco

Tue 7/4

08:20-17:05

2 stops7h 45m

£296

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 22 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?

Use this chart to determine the optimal time to book a return flight from Denver to San Francisco. Price data was last updated on 13 March 2026.

The best time to book flights from Denver to San Francisco is 33 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 £43). Flying from Denver to San Francisco in August is currently the most expensive (average of £93). 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 25 March 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 76% on flights from Denver to San Francisco by exploring options for tickets in the afternoon.

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?

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

    For as low as £222, Southwest can have you in San Francisco from Denver in 2h 51m. 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 China (94%), Volaris (91%) and Frontier (90%).

  • 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 £43). Flying from Denver to San Francisco in August is currently the most expensive (average of £93). 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
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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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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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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