Cheap flights from San Francisco to Denver from $136
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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEN
23 Jul — 30 Jul1
Return
1 adult
Economy
Cheapflights Tip: The best prices from San Francisco to Denver Intl are usually found in January or October, booked 52 days in advance, depart on a Monday or Sunday and return on a Tuesday
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 July 2025.
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 July 2025.
Sat 16/805:00SFO - DEN
Nonstop2h 36mUnited Airlines
Sat 23/808:02DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 17/7$242
Sun 31/809:21SFO - DEN
Nonstop2h 39mFrontier
Sun 7/922:29DEN - SFO
Nonstop2h 47mFrontier
Deal found 17/7$247
Sat 23/806:34SFO - DEN
Nonstop2h 40mMultiple Airlines
Sat 30/811:40DEN - SFO
1 stop5h 44mMultiple Airlines
Deal found 17/7$253
Thu 21/819:45SFO - DEN
Nonstop2h 25mSouthwest
Mon 25/806:45DEN - SFO
1 stop4h 45mSouthwest
Deal found 16/7$258
Wed 1/1011:30SFO - DEN
1 stop7h 57mAlaska Airlines
Thu 2/1021:23DEN - SFO
1 stop12h 49mAlaska Airlines
Deal found 18/7$271
Sat 23/810:55SFO - DEN
1 stop6h 26mDelta
Wed 27/807:20DEN - SFO
1 stop5h 51mDelta
Deal found 18/7$335
Best flights from San Francisco to Denver
Discover carefully curated flight deals from San Francisco to Denver that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.
Sat 16/805:00SFO - DEN
Nonstop2h 36mUnited Airlines
Sat 23/808:02DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 17/7$242
Sun 31/809:21SFO - DEN
Nonstop2h 39mFrontier
Sun 7/922:29DEN - SFO
Nonstop2h 47mFrontier
Deal found 17/7$247
Sat 23/806:34SFO - DEN
Nonstop2h 40mMultiple Airlines
Sat 30/811:40DEN - SFO
1 stop5h 44mMultiple Airlines
Deal found 17/7$253
Thu 21/812:35SFO - DEN
1 stop5h 05mSouthwest
Thu 28/814:50DEN - SFO
Nonstop2h 35mSouthwest
Deal found 16/7$258
Wed 1/1011:30SFO - DEN
1 stop7h 57mAlaska Airlines
Thu 2/1021:23DEN - SFO
1 stop12h 49mAlaska Airlines
Deal found 18/7$271
Sat 23/810:55SFO - DEN
1 stop6h 26mDelta
Wed 27/807:20DEN - SFO
1 stop5h 51mDelta
Deal found 18/7$335
Direct flights from San Francisco to Denver
Explore direct flight options from San Francisco to Denver based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 July 2025.
Sat 16/805:00SFO - DEN
Nonstop2h 36mUnited Airlines
Sat 23/808:02DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 17/7$242
Sun 31/809:21SFO - DEN
Nonstop2h 39mFrontier
Sun 7/922:29DEN - SFO
Nonstop2h 47mFrontier
Deal found 17/7$247
Thu 14/805:30SFO - DEN
Nonstop2h 25mSouthwest
Sun 17/808:05DEN - SFO
Nonstop2h 40mSouthwest
Deal found 16/7$273
Last-minute flights from San Francisco to Denver
Discover last-minute flight deals from San Francisco to Denver. Data last updated 18 July 2025 and is based on user searches.
Wed 23/706:00SFO - DEN
2 stops14h 47mAlaska Airlines
Wed 30/706:00DEN - SFO
2 stops12h 20mAlaska Airlines
Deal found 16/7$699
Fri 25/705:00SFO - DEN
Nonstop2h 36mUnited Airlines
Mon 28/705:30DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 17/7$690
Sat 26/705:55SFO - DEN
1 stop4h 40mDelta
Sat 26/718:10DEN - SFO
1 stop5h 41mDelta
Deal found 17/7$551
Sun 27/705:00SFO - DEN
1 stop6h 05mSouthwest
Fri 15/815:55DEN - SFO
2 stops7h 30mSouthwest
Deal found 17/7$500
Sat 16/805:00SFO - DEN
Nonstop2h 36mUnited Airlines
Sat 23/808:02DEN - SFO
Nonstop2h 42mUnited Airlines
Deal found 17/7$242
Thu 21/819:45SFO - DEN
Nonstop2h 25mSouthwest
Mon 25/806:45DEN - SFO
1 stop4h 45mSouthwest
Deal found 16/7$258
Sat 23/806:34SFO - DEN
Nonstop2h 40mMultiple Airlines
Sat 30/811:40DEN - SFO
1 stop5h 44mMultiple Airlines
Deal found 17/7$253
Sat 23/810:55SFO - DEN
1 stop6h 26mDelta
Wed 27/807:20DEN - SFO
1 stop5h 51mDelta
Deal found 18/7$335
Tue 26/806:00SFO - DEN
1 stop7h 06mAlaska Airlines
Sat 30/811:40DEN - SFO
1 stop5h 44mAlaska Airlines
Deal found 16/7$271
Sun 31/809:21SFO - DEN
Nonstop2h 39mFrontier
Sun 7/922:29DEN - SFO
Nonstop2h 47mFrontier
Deal found 17/7$247
One-way flights from San Francisco to Denver
Search for one-way flight options from San Francisco to Denver. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.
Tue 28/1016:39SFO - DEN
1 stop6h 20mAlaska Airlines
Deal found 18/7$136
Mon 18/817:15SFO - DEN
1 stop4h 55mSouthwest
Deal found 18/7$137
Sun 5/1005:05SFO - DEN
Nonstop2h 35mUnited Airlines
Deal found 18/7$153
Sun 5/1006:45SFO - DEN
1 stop6h 15mHawaiian Airlines
Deal found 17/7$167
Mon 18/805:55SFO - DEN
1 stop4h 39mDelta
Deal found 18/7$168
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 July 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
Sat 16/8
05:00-08:36
Nonstop2h 36m
Denver Intl
Sat 23/8
08:02-09:44
Nonstop2h 42m
$242
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sun 31/8
09:21-13:00
Nonstop2h 39m
Denver Intl
Sun 7/9
22:29-00:16
Nonstop2h 47m
$247
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sat 23/8
06:34-10:14
Nonstop2h 40m
Denver Intl
Sat 30/8
11:40-16:24
1 stop5h 44m
$253
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Thu 21/8
19:45-23:10
Nonstop2h 25m
Denver Intl
Mon 25/8
06:45-10:30
1 stop4h 45m
$258
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Wed 1/10
11:30-20:27
1 stop7h 57m
Denver Intl
Thu 2/10
21:23-09:12
1 stop12h 49m
$271
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sat 23/8
10:55-18:21
1 stop6h 26m
Denver Intl
Wed 27/8
07:20-12:11
1 stop5h 51m
$335
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Tue 28/10
16:39-23:59
1 stop6h 20m
$136
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Mon 18/8
17:15-23:10
1 stop4h 55m
$137
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sun 5/10
05:05-08:40
Nonstop2h 35m
$153
San FranciscoDenver
SFO - DEN
SFODEN
San Francisco
Sun 5/10
06:45-14:00
1 stop6h 15m
$167
Flights are sorted by cheapest return flights first.
Deals found on 18/7
Showing 1-10 of 11 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 11 July 2025.
To ensure you get the cheapest price possible for a flight from San Francisco to Denver, you should look to book at least 52 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 $1,617). 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 July 2025.
It’s optimal to fly from San Francisco to Denver at midday. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.
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 18 July 2025.
The most flights from SFO to DEN are scheduled on a Friday (59 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (40 on average).
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 18 July 2025.
Read through reviews of airlines operating flights from San Francisco to Denver, such as Alaska Airlines, Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Good flight except the uncontrollable cold air from the ceiling.
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?
If you book a flight from San Francisco to Denver, you will be flying from San Francisco to Denver Intl. Flights to Denver Intl (DEN) from San Francisco (SFO) take 2h 40m for a nonstop flight. There are 49 flights from San Francisco to Denver per day from 1 airline.
How popular is this San Francisco to Denver flight route?
Flights from San Francisco to Denver Intl have been viewed 36 times in the past calendar month.
What are the cheapest airlines flying from San Francisco to Denver round-trip?
Cheapflights users have booked flights from San Francisco to Denver round-trip from $242. Other airlines that can offer you cheap pricing are Frontier, from $247, and Southwest, from $258. Users have found that United Airlines is 30% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San Francisco to Denver one-way?
$136 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $137 and $153, 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 (78%), Air Canada (76%) and United Airlines (75%).
What are the cheapest flights from San Francisco to Denver?
The cheapest flight price from San Francisco to Denver is $476. On average you can expect to pay $846. The most popular route, (San Francisco - Denver Intl), can usually be booked for $253.
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 $1,617). 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.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 18 July 2025.
Discover the top airline 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 647,157 searches. Data last updated 18 July 2025.
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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