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Cheap flights from San Francisco to Denver from $154

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Denver

Enter your travel dates to find the best prices.

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 17 August 2026.

Tue 1/912:05 -
Nonstop2h 49m
Mon 7/905:00 -
Nonstop2h 41m
Deal found 12/8$278
Tue 27/1021:24 -
Nonstop2h 35m
Mon 2/1106:00 -
Nonstop2h 49m
Deal found 12/8$292
Sat 3/1006:20 -
Nonstop2h 30m
Mon 5/1021:35 -
Nonstop2h 35m
Deal found 14/8$306
Tue 15/907:40 -
1 stop4h 20m
Tue 22/921:40 -
Nonstop2h 40m
Deal found 16/8$315
Fri 4/921:13 -
Nonstop2h 46m
Mon 14/905:00 -
Nonstop2h 41m
Deal found 13/8$319
Wed 2/911:58 -
1 stop5h 20m
Tue 15/910:45 -
1 stop6h 39m
Deal found 13/8$320
Tue 27/1010:20 -
1 stop7h 30m
Mon 2/1119:15 -
2 stops5h 50m
Deal found 12/8$322
Wed 2/905:50 -
2 stops7h 10m
Wed 2/915:30 -
1 stop4h 35m
Deal found 13/8$327
Mon 12/1016:43 -
1 stop6h 16m
Tue 20/1012:31 -
1 stop6h 13m
Deal found 14/8$332
Fri 18/915:20 -
Nonstop2h 30m
Tue 22/915:45 -
Nonstop2h 35m
Deal found 14/8$333
Sat 17/1006:00 -
1 stop4h 56m
Wed 21/1006:35 -
1 stop5h 30m
Deal found 14/8$334

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 17 August 2026.

Round-trip from

$278

One-way from

$154

Popular in

June

Cheapest in

February

Average price

$425
United Airlines
  • United Airlines
  • 1/9-7/9
  • Nonstop
  • 5h 30m total
  • San Francisco to Denver
Search Deals
Southwest
  • Southwest
  • 16/9
  • Nonstop
  • 2h 30m total
  • San Francisco to Denver
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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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 17 August 2026.
Use the filters below to find and compare flights from San Francisco to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Mon 26/10

19:25-00:35

1 stop4h 10m

Denver Intl

Mon 2/11

19:15-00:05

2 stops5h 50m

$329

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Thu 22/10

15:35-23:45

1 stop7h 10m

Denver Intl

Wed 28/10

16:00-21:00

2 stops6h 00m

$336

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Wed 30/9

07:40-13:00

1 stop4h 20m

Denver Intl

Wed 7/10

16:00-21:00

2 stops6h 00m

$356
Fastest return journey

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Mon 14/9

17:19-22:40

1 stop4h 21m

Denver Intl

Fri 25/9

19:55-23:40

1 stop4h 45m

$361

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Sat 26/9

13:38-19:40

1 stop5h 02m

Denver Intl

Sat 3/10

13:00-23:51

2 stops11h 51m

$404

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Thu 1/10

09:30-18:11

1 stop7h 41m

Denver Intl

Tue 6/10

05:20-13:08

2 stops8h 48m

$404

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Thu 29/10

09:55-17:55

1 stop7h 00m

Denver Intl

Sun 1/11

19:15-00:05

2 stops5h 50m

$498

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Mon 26/10

16:49-23:53

1 stop6h 04m

Denver Intl

Wed 28/10

10:45-20:18

2 stops10h 33m

$501

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Wed 23/9

09:30-18:11

1 stop7h 41m

Denver Intl

Sat 26/9

10:45-20:18

2 stops10h 33m

$501

San FranciscoDenver

SFO San Francisco - DEN Denver Intl

SFODEN

San Francisco

Sat 12/9

05:00-12:25

2 stops6h 25m

Denver Intl

Wed 16/9

12:35-19:15

2 stops7h 40m

$504

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 21 resultsSorted by cheapest first
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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?

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 70 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, February is the cheapest month in which you can book a flight from San Francisco to Denver (average of $330). Flying from San Francisco to Denver in June is currently the most expensive (average of $547). 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 17 August 2026.

It’s optimal to fly from San Francisco to Denver in the evening. By choosing this option you can save up to 68% on the cost of your flight, compared to a flight in the afternoon.

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

Airfare is below average for this route at the moment.

San Francisco to Denver flights typically cost between $305 and $576 in September.
The cheapest return price found within the last 5 days was $278 on United Airlines (1 Sept–7 Sept).

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 3 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 4h 10m. Southwest provides one of the quickest options available for as low as $329. San Francisco and Denver are separated by a distance of 1551 km. This flight may include one or multiple stops.

  • 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 Avianca (82%), Asiana Airlines (80%) and Air Canada (77%).

  • 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, February is the cheapest month in which you can book a flight from San Francisco to Denver (average of $330). Flying from San Francisco to Denver in June is currently the most expensive (average of $547). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Englewood

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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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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 San Francisco to Denver?

Cheapflights helps you search for flights from San Francisco to Denver via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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