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Cheap flights from San Francisco to Denver from $104

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in January or March, booked 36 days in advance, depart on a Wednesday or Monday and return on a Monday

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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 November 2025.

Wed 17/1205:50SFO - DEN
Nonstop2h 25mSouthwest
Sat 10/108:05DEN - SFO
Nonstop3h 00mSouthwest
Deal found 17/11$210
Wed 17/1207:00SFO - DEN
1 stop11h 24mAlaska Airlines
Wed 7/108:04DEN - SFO
1 stop6h 58mAlaska Airlines
Deal found 15/11$245
Tue 16/1207:35SFO - DEN
1 stop6h 11mAlaska Airlines
Tue 6/106:02DEN - SFO
1 stop8h 52mAlaska Airlines
Deal found 15/11$269
Wed 17/1207:00SFO - DEN
1 stop11h 24mAlaska Airlines
Tue 6/106:02DEN - SFO
1 stop8h 52mAlaska Airlines
Deal found 15/11$274
Tue 9/1210:20SFO - DEN
1 stop8h 04mAlaska Airlines
Thu 11/1218:59DEN - SFO
1 stop5h 49mAlaska Airlines
Deal found 16/11$280
Sat 13/1216:37SFO - DEN
1 stop5h 44mDelta
Sun 14/1206:05DEN - SFO
1 stop7h 54mDelta
Deal found 17/11$281
Wed 10/1213:58SFO - DEN
1 stop8h 23mDelta
Thu 11/1207:05DEN - SFO
2 stops9h 52mDelta
Deal found 17/11$288
Sat 6/1218:59SFO - DEN
1 stop14h 46mAlaska Airlines
Tue 9/1218:59DEN - SFO
1 stop14h 07mAlaska Airlines
Deal found 15/11$291
Sat 13/1205:00SFO - DEN
2 stops7h 50mSouthwest
Tue 16/1220:45DEN - SFO
Nonstop2h 45mSouthwest
Deal found 16/11$294
Wed 10/1210:30SFO - DEN
2 stops7h 28mDelta
Sat 13/1212:00DEN - SFO
2 stops11h 31mDelta
Deal found 17/11$297
Tue 16/1210:06SFO - DEN
2 stops12h 53mAlaska Airlines
Wed 7/108:04DEN - SFO
1 stop6h 58mAlaska Airlines
Deal found 15/11$298
Sat 13/1214:50SFO - DEN
1 stop8h 09mAlaska Airlines
Wed 17/1206:45DEN - SFO
1 stop14h 30mAlaska Airlines
Deal found 16/11$300

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 17 November 2025.

Round-trip from

$179

One-way from

$104

Popular in

June

Cheapest in

January

Average price

$382

Good one-way deal

$442 or less
Southwest
  • Southwest
  • 15/1-19/1
  • Nonstop
  • 5h 25m total
  • San Francisco to Denver
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 8/2
  • 1 total stop
  • 6h 00m total
  • San Francisco to Denver
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a one-way flight from San Francisco to Denver Intl.
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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 November 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

Fri 27/2

19:06-22:44

Nonstop2h 38m

Denver Intl

Sun 1/3

05:20-07:18

Nonstop2h 58m

$179

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 29/1

21:23-00:59

Nonstop2h 36m

Denver Intl

Sun 1/2

05:18-07:14

Nonstop2h 56m

$286

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 21/1

08:24-23:58

2 stops14h 34m

Denver Intl

Sun 25/1

11:49-18:43

1 stop7h 54m

$298

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 16/12

07:35-14:46

1 stop6h 11m

Denver Intl

Sun 11/1

19:39-08:47

2 stops14h 08m

$314

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 16/12

07:40-15:55

2 stops7h 15m

Denver Intl

Wed 7/1

13:10-21:15

2 stops9h 05m

$317

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 8/1

11:41-18:41

1 stop6h 00m

Denver Intl

Sun 11/1

11:49-18:43

1 stop7h 54m

$330

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 6/12

05:30-08:55

Nonstop2h 25m

Denver Intl

Sun 7/12

07:45-09:30

Nonstop2h 45m

$332

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 14/2

06:05-23:25

1 stop16h 20m

Denver Intl

Wed 18/2

06:29-22:54

1 stop17h 25m

$341

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 22/1

14:35-23:25

1 stop7h 50m

Denver Intl

Tue 27/1

05:15-13:43

2 stops9h 28m

$349

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 24/1

10:30-19:58

2 stops8h 28m

Denver Intl

Sat 31/1

12:46-23:30

2 stops11h 44m

$358

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 22 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 14 November 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 36 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 $43). Flying from San Francisco to Denver in June is currently the most expensive (average of $162). 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 November 2025.

It’s optimal to fly from San Francisco to Denver at midday. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the afternoon.

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 20 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 38m. United Airlines provides one of the quickest options available for as low as $179. 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 SWISS (100%), Air New Zealand (86%) and Virgin Australia (86%).

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

    The cheapest flight price from San Francisco to Denver is $337. On average you can expect to pay $442. The most popular route, (San Francisco - Denver Intl), can usually be booked for $569.

  • 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 $43). Flying from San Francisco to Denver in June is currently the most expensive (average of $162). 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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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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