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Cheap flights from San Francisco to Denver from $106

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in January or October, booked 53 days in advance, depart on a Friday or Thursday 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 18 September 2025.

Round-trip from

$235

One-way from

$106

Popular in

June

Cheapest in

January

Average price

$348
Southwest
  • Southwest
  • 12/11-17/11
  • Nonstop
  • 5h 15m total
  • San Francisco to Denver
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Hawaiian Airlines
  • Hawaiian Airlines
  • 23/10
  • 1 total stop
  • 6h 15m total
  • San Francisco to Denver
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average return price).
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Average for round-trip flights in September 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 18 September 2025.

Thu 16/1005:00SFO - DEN
Nonstop2h 30mSouthwest
Mon 20/1022:30DEN - SFO
Nonstop2h 35mSouthwest
Deal found 18/9$235
Tue 7/1010:25SFO - DEN
1 stop4h 40mSouthwest
Thu 9/1022:30DEN - SFO
Nonstop2h 35mSouthwest
Deal found 16/9$244
Thu 4/1207:45SFO - DEN
2 stops7h 10mSouthwest
Mon 8/1213:00DEN - SFO
Nonstop2h 40mSouthwest
Deal found 17/9$258
Mon 13/1005:00SFO - DEN
Nonstop2h 30mSouthwest
Fri 17/1020:30DEN - SFO
Nonstop2h 35mSouthwest
Deal found 16/9$265
Sat 8/1107:35SFO - DEN
2 stops7h 45mSouthwest
Tue 11/1107:25DEN - SFO
1 stop5h 05mSouthwest
Deal found 17/9$267
Sat 8/1107:35SFO - DEN
2 stops7h 45mSouthwest
Mon 10/1107:45DEN - SFO
1 stop5h 25mSouthwest
Deal found 17/9$273
Tue 28/1011:30SFO - DEN
2 stops6h 05mSouthwest
Wed 29/1005:50DEN - SFO
2 stops7h 30mSouthwest
Deal found 17/9$280
Tue 2/1207:00SFO - DEN
1 stop15h 59mAlaska Airlines
Fri 5/1218:59DEN - SFO
1 stop5h 49mAlaska Airlines
Deal found 17/9$288
Thu 16/1005:05SFO - DEN
Nonstop2h 35mUnited Airlines
Sun 19/1006:03DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 16/9$294
Wed 22/1007:15SFO - DEN
2 stops8h 45mSouthwest
Fri 24/1020:10DEN - SFO
1 stop4h 35mSouthwest
Deal found 16/9$303

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 18 September 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

Thu 16/10

05:00-08:30

Nonstop2h 30m

Denver Intl

Thu 23/10

22:30-00:05

Nonstop2h 35m

$235

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 8/11

05:30-08:55

Nonstop2h 25m

Denver Intl

Tue 11/11

20:45-22:30

Nonstop2h 45m

$235

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 7/10

14:05-22:35

2 stops7h 30m

Denver Intl

Thu 9/10

22:30-00:05

Nonstop2h 35m

$258

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 3/12

07:45-15:55

2 stops7h 10m

Denver Intl

Mon 8/12

13:00-14:40

Nonstop2h 40m

$258

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 4/12

07:45-15:55

2 stops7h 10m

Denver Intl

Mon 8/12

13:00-14:40

Nonstop2h 40m

$258

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 28/10

07:15-17:00

2 stops8h 45m

Denver Intl

Wed 29/10

06:40-10:55

1 stop5h 15m

$273

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 11/2

07:40-15:50

2 stops7h 10m

Denver Intl

Sat 14/2

06:20-13:00

1 stop7h 40m

$273

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 23/10

17:05-23:25

1 stop5h 20m

Denver Intl

Sat 25/10

14:50-20:45

2 stops6h 55m

$273

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 4/12

15:05-22:55

1 stop6h 50m

Denver Intl

Sun 7/12

12:25-14:05

Nonstop2h 40m

$280

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 3/3

16:30-11:19

1 stop17h 49m

Denver Intl

Wed 4/3

19:04-23:33

1 stop5h 29m

$283

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 21 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 12 September 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 53 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 $1,615). 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 18 September 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 27 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 2h 30m. Southwest provides one of the quickest options available for as low as $235. San Francisco and Denver are separated by a distance of 1551 km. All flights are typically direct.

  • What are the cheapest airlines to fly from San Francisco to Denver one-way?

    $106 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Alaska Airlines and Frontier, with prices starting from $115 and $117, respectively.

  • 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 (88%), Frontier (78%) and SWISS (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, 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 $1,615). 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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