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$58+ Cheap flights from San Francisco to Denver (SFO - DEN)

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in September or January, booked 24 days in advance, depart on a Wednesday or Friday and return on a Friday

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 April 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$91
(Cheapflightsfares)

One-way from

$58
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$198

Good round-trip deal

$202 or less

Good one-way deal

$131 or less
Provider with most accurate pricing for San Francisco-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Denver Intl flights.
Search Deals
From San Francisco to Denver Intl
Search Deals
One-way flight from San Francisco to Denver Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Denver Intl.
Search Deals
Price to beat on a one-way flight from San Francisco to Denver Intl.
Search Deals

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 April 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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 5/26:20 amSFO - DEN
Nonstop2h 39mFrontier
Mon 5/510:18 pmDEN - SFO
Nonstop2h 51mFrontier
Deal found 4/10$91
This Trip.com deal was found by Cheapflights users on 4/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/32:34 pmSFO - DEN
1 stop5h 41mMultiple Airlines
Sat 5/1010:18 pmDEN - SFO
Nonstop2h 51mMultiple Airlines
Deal found 4/10$140
This Southwest deal was found by Cheapflights users on 4/10. 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.
Sat 5/175:00 amSFO - DEN
1 stop5h 50mSouthwest
Wed 5/219:40 pmDEN - SFO
Nonstop2h 40mSouthwest
Deal found 4/10$151
This American Airlines deal was found by Cheapflights users on 4/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/176:19 amSFO - DEN
1 stop4h 54mAmerican Airlines
Wed 5/218:01 amDEN - SFO
1 stop5h 54mAmerican Airlines
Deal found 4/10$202
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Sat 5/35:00 amSFO - DEN
Nonstop2h 38mUnited Airlines
Sun 5/48:00 pmDEN - SFO
Nonstop2h 51mUnited Airlines
Deal found 4/10$203
This Alaska Airlines deal was found by Cheapflights users on 4/10. 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.
Tue 5/69:59 amSFO - DEN
2 stops10h 16mAlaska Airlines
Sat 5/106:37 pmDEN - SFO
1 stop15h 40mAlaska Airlines
Deal found 4/10$235
This Delta deal was found by Cheapflights users on 4/10. 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.
Wed 6/412:40 pmSFO - DEN
1 stop4h 39mDelta
Sun 6/157:10 amDEN - SFO
1 stop6h 02mDelta
Deal found 4/10$237

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated April 11, 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 5/2

6:20 am-9:59 am

Nonstop2h 39m

Denver Intl

Mon 5/5

10:18 pm-12:09 am

Nonstop2h 51m

$91

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 5/3

2:34 pm-9:15 pm

1 stop5h 41m

Denver Intl

Sat 5/10

10:18 pm-12:09 am

Nonstop2h 51m

$140

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 5/17

5:00 am-11:50 am

1 stop5h 50m

Denver Intl

Wed 5/21

9:40 pm-11:20 pm

Nonstop2h 40m

$151

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 5/17

6:19 am-12:13 pm

1 stop4h 54m

Denver Intl

Wed 5/21

8:01 am-12:55 pm

1 stop5h 54m

$202

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 5/3

5:00 am-8:38 am

Nonstop2h 38m

Denver Intl

Sun 5/4

8:00 pm-9:51 pm

Nonstop2h 51m

$203

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 5/3

2:34 pm-9:15 pm

1 stop5h 41m

Denver Intl

Sat 5/10

8:20 am-7:31 pm

2 stops12h 11m

$232

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 6/4

12:40 pm-6:19 pm

1 stop4h 39m

Denver Intl

Sun 6/15

7:10 am-12:12 pm

1 stop6h 02m

$237

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 5/27

6:15 am-9:54 am

Nonstop2h 39m

$58

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sun 5/11

7:00 am-12:30 pm

1 stop4h 30m

$76

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 7/2

7:03 pm-10:39 pm

Nonstop2h 36m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 15 results
1
2

Compare providers for flights from San Francisco to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Denver in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Francisco to Denver 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 San Francisco to Denver trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for added comfort.


Early morning flights have a better chance of on-time departure and arrival.

Read more about Frontierby Marisa Garcia
United Airlines

Basic Economy allows a personal item only; no carry-on bags unless you're a MileagePlus member.


Economy Plus offers extra legroom seats at the front of the economy cabin for MileagePlus members.

Read more about United Airlinesby Harriet Baskas
Airports
SFO

Save time at SFO by using the AirTrain to navigate between terminals quickly, especially during busy weekday mornings.

Read more about SFOby Harriet Baskas
DEN

Use the A Line train from DEN to reach downtown Denver in 37 minutes, a cost-effective and efficient option.

Read more about DENby Emily Zemler
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 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 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 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 round-trip flight from San Francisco to Denver. Price data was last updated on April 4, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 24 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, October is the cheapest month in which you can book a flight from San Francisco to Denver (average of $197). Flying from San Francisco to Denver in March is currently the most expensive (average of $278). 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 April 11, 2025.

One of the essential ways to save on airfare from San Francisco to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Denver. Price data was last updated on March 30, 2025.

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

Weekly flight availability from San Francisco to Denver

Explore weekly flight availability from San Francisco to Denver. 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 April 11, 2025.

The most flights from SFO to DEN are scheduled on a Wednesday (53 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (38 on average).

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated April 11, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Francisco to Denver have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,851 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,910 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,636 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    To fly from San Francisco to Denver, you need to book a flight from San Francisco (SFO) to Denver Intl (DEN). Nonstop flights to Denver Intl from San Francisco take 2h 25m on average. When it comes time to book airfare, you have a few options: there are 46 outbound flights from San Francisco to Denver Intl offered by 6 different airlines.

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

    The San Francisco to Denver Intl flight path was viewed by 328 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 San Francisco to Denver round-trip?

    Flying on Frontier is currently your cheapest option to Denver, with prices starting at $91. Additional round-trip tickets that might be worth considering are offered by Southwest and United Airlines, with the lowest prices starting at $151 and $203, respectively. Frontier is 57% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $58 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $76 and $90, respectively.

  • What are the most reliable airlines from San Francisco to Denver?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Denver on time: Frontier (93%), Virgin Australia (87%), Air New Zealand (86%).

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

    Looking at all options, your cheapest flight can be booked for $70. While the most popular route (San Francisco - Denver Intl) can be booked for $87 on average our data indicates $794 when flying from San Francisco to Denver.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from San Francisco to Denver (average of $197). Flying from San Francisco to Denver in March is currently the most expensive (average of $278). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Silverthorne
Brighton
Greeley
Frisco
Grand Lake
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Thornton
Broomfield
Idaho Springs
Limon

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Top 6 airlines flying from San Francisco to Denver

Discover the top 6 airlines that operate flights from San Francisco to Denver. 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 April 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$153FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$116Average$320FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$151Average$280FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$156Average$332FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$182Average$319FlexibilityNo cancel feeOn-time71%
DeltaCheapest$195Average$296FlexibilityNo cancel feeOn-timeN/A

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