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$78+ Cheap flights from Denver to San Francisco (DEN - SFO)

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to San Francisco are usually found in February or September, booked 22 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap 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 June 12, 2025.

Round-trip from

$130
(Cheapflightsfares)

One-way from

$79
(Southwest)

Popular in

June

Cheapest in

February

Average price

$265

Good round-trip deal

$218 or less

Good one-way deal

$137 or less
From Denver Intl to San Francisco
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One-way flight from Denver Intl to San Francisco
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Highest demand for flights based on searches. 9% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Denver Intl to San Francisco.
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Price to beat on a one-way flight from Denver Intl to San Francisco.
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Find flight deals from Denver to San Francisco

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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2910:29 pmDEN - SFO
Nonstop2h 50mFrontier
Mon 9/16:26 amSFO - DEN
Nonstop2h 40mFrontier
Deal found 6/10$130
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:30 pmDEN - SFO
Nonstop2h 35mSouthwest
Thu 10/95:00 amSFO - DEN
Nonstop2h 30mSouthwest
Deal found 6/10$157
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:01 amDEN - SFO
1 stop8h 00mAlaska Airlines
Mon 10/136:45 amSFO - DEN
1 stop6h 15mAlaska Airlines
Deal found 6/10$216
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:10 pmDEN - SFO
1 stop5h 41mDelta
Sat 8/912:30 pmSFO - DEN
1 stop4h 47mDelta
Deal found 6/10$217
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:10 pmDEN - SFO
Nonstop2h 47mUnited Airlines
Mon 10/138:52 pmSFO - DEN
Nonstop2h 37mUnited Airlines
Deal found 6/10$247

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Denver to San Francisco that are best for you.

Fly from

Denver

Fly to

San Francisco

Route

Depart

Return

Price

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 8/29

10:29 pm-12:19 am

Nonstop2h 50m

San Francisco

Mon 9/1

6:26 am-10:06 am

Nonstop2h 40m

$130

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 10/8

9:30 pm-11:05 pm

Nonstop2h 35m

San Francisco

Thu 10/9

5:00 am-8:30 am

Nonstop2h 30m

$157

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 10/10

7:01 am-2:01 pm

1 stop8h 00m

San Francisco

Mon 10/13

6:45 am-2:00 pm

1 stop6h 15m

$216

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Sat 8/2

6:10 pm-10:51 pm

1 stop5h 41m

San Francisco

Thu 8/7

5:55 am-11:35 am

1 stop4h 40m

$217

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 10/10

9:10 pm-10:57 pm

Nonstop2h 47m

San Francisco

Mon 10/13

8:52 pm-12:29 am

Nonstop2h 37m

$247

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Fri 10/17

11:12 am-3:02 pm

1 stop4h 50m

$78

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Tue 8/12

8:30 am-10:05 am

Nonstop2h 35m

$79

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Thu 10/16

7:01 am-2:01 pm

1 stop8h 00m

$82

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Wed 10/15

7:01 am-2:01 pm

1 stop8h 00m

$86

DenverSan Francisco

DEN - SFO

DENSFO

Denver Intl

Mon 8/4

6:45 pm-11:42 pm

1 stop5h 57m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
1
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The best insider tips for Denver to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to San Francisco trip
Airlines
Frontier

Frontier's UpFront Plus offers a guaranteed empty middle seat for added comfort.


Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.

Read more about Frontierby Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.


United's Polaris Lounges offer showers, napping areas, and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas
Airports
DEN

Use the A Line train for a quick 37-minute ride from downtown Denver to DEN, avoiding traffic and parking hassles.

Read more about DENby Emily Zemler
SFO

Take BART from SFO to downtown San Francisco in about 40 minutes for an affordable and efficient transit option.

Read more about SFOby Harriet Baskas
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

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 round-trip 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 round-trip flight from Denver to San Francisco. Price data was last updated on June 9, 2025.

The best time to book flights from Denver to San Francisco is 22 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 $276). Flying from Denver to San Francisco in June is currently the most expensive (average of $364). 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 June 12, 2025.

It’s optimal to fly from Denver to San Francisco in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Denver to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Denver to San Francisco. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Denver to San Francisco flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Denver to San Francisco

Explore weekly flight availability from Denver to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from DEN to SFO are scheduled on a Wednesday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Denver to San Francisco, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What airports do I use to fly from Denver to San Francisco?

    If you book a flight from Denver to San Francisco, you will be flying from Denver Intl to San Francisco. Flights to San Francisco (SFO) from Denver Intl (DEN) take 2h 35m for a nonstop flight. There are 45 flights from Denver Intl to San Francisco per day from 3 airlines.

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

    The Denver Intl to San Francisco flight path was viewed by 148 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Denver to San Francisco round-trip?

    Currently priced at $130, Frontier will fly you from Denver to San Francisco and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $157 and $217, respectively. Users have found that Frontier is 36% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from Frontier and Hawaiian Airlines, as they are both options that can get you from Denver to San Francisco for a low price.

  • 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 Emirates (92%), ANA (92%) and Air China (92%).

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

    Looking for the cheapest flight from Denver to San Francisco? While on average our users pay $2,780, our data indicates the cheapest price to be $68. The most popular route (Denver Intl - San Francisco), is priced around $121.

  • 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 vacation 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 $276). Flying from Denver to San Francisco in June is currently the most expensive (average of $364). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Denver to San Francisco

Discover the top 3 airlines that operate flights from Denver to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$145FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$141Average$252FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$150Average$309FlexibilityNo cancel feeOn-time69%

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