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Cheap flights from San Francisco to Denver from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Denver departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to Denver

Cheap round-trip flights

Frontier Logo
9:59 pm - 10:08 amSFO-DEN
11h 09m1 stop
Frontier Logo
8:41 pm - 10:30 pmDEN-SFO
2h 49mnonstop
$127Frontier
Find Deal
Sat, Sep 20 - Tue, Sep 30
Frontier Logo
7:10 am - 10:47 amSFO-DEN
2h 37mnonstop
Frontier Logo
10:01 am - 9:21 pmDEN-SFO
12h 20m2 stops
$128Frontier
Find Deal
Wed, Sep 24 - Sat, Sep 27
Frontier Logo
9:39 am - 5:03 pmSFO-DEN
6h 24m1 stop
Frontier Logo
10:29 pm - 12:16 amDEN-SFO
2h 47mnonstop
$129Frontier
Find Deal
Thu, Sep 18 - Fri, Sep 26
Frontier Logo
1:15 pm - 4:56 pmSFO-DEN
2h 41mnonstop
Frontier Logo
6:00 am - 9:42 pmDEN-SFO
16h 42m1 stop
$130Frontier
Find Deal
Fri, Sep 12 - Mon, Sep 15
Frontier Logo
7:10 am - 10:47 amSFO-DEN
2h 37mnonstop
Frontier Logo
6:29 pm - 12:15 amDEN-SFO
6h 46m1 stop
$131Frontier
Find Deal
Wed, Sep 24 - Fri, Sep 26
Frontier Logo
11:57 pm - 9:01 amSFO-DEN
8h 04m1 stop
Frontier Logo
8:41 pm - 10:30 pmDEN-SFO
2h 49mnonstop
$132Frontier
Find Deal
Mon, Sep 22 - Tue, Sep 30
Frontier Logo
9:31 am - 5:38 pmSFO-DEN
7h 07m1 stop
Frontier Logo
6:30 am - 8:15 amDEN-SFO
2h 45mnonstop
$133Frontier
Find Deal
Mon, Sep 22 - Sun, Sep 28
Frontier Logo
7:07 pm - 10:48 pmSFO-DEN
2h 41mnonstop
Frontier Logo
10:29 pm - 12:16 amDEN-SFO
2h 47mnonstop
$134Frontier
Find Deal
Fri, Sep 19 - Mon, Sep 29
Logo
7:10 am - 10:47 amSFO-DEN
2h 37mnonstop
Logo
11:40 am - 4:24 pmDEN-SFO
5h 44m1 stop
$140
Find Deal
Tue, Sep 23 - Wed, Oct 1
Logo
10:49 am - 2:30 pmSFO-DEN
2h 41mnonstop
Logo
11:40 am - 4:24 pmDEN-SFO
5h 44m1 stop
$152
Find Deal
Sat, Sep 20 - Sat, Sep 27

Frontier flights from San Francisco to Denver

Our best Frontier deals on San Francisco to Denver flight tickets
Frontier
Sep 20
SFO9:59 pmSan Francisco
11h 09m
1 stop
DEN10:08 amDenver Intl
Sep 30
DEN8:41 pmDenver Intl
2h 49m
SFO10:30 pmSan Francisco
$127
Find similar
Frontier
Sep 24
SFO7:10 amSan Francisco
2h 37m
DEN10:47 amDenver Intl
Sep 27
DEN10:01 amDenver Intl
12h 20m
2 stops
SFO9:21 pmSan Francisco
$128
Find similar
Frontier
Sep 18
SFO9:39 amSan Francisco
6h 24m
1 stop
DEN5:03 pmDenver Intl
Sep 26
DEN10:29 pmDenver Intl
2h 47m
SFO12:16 amSan Francisco
$129
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from San Francisco to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 9/20

9:59 pm-10:08 am

1 stop11h 09m

Denver Intl

Tue 9/30

8:41 pm-10:30 pm

Nonstop2h 49m

$127

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 9/24

7:10 am-10:47 am

Nonstop2h 37m

Denver Intl

Sat 9/27

10:01 am-9:21 pm

2 stops12h 20m

$128

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 9/18

9:39 am-5:03 pm

1 stop6h 24m

Denver Intl

Fri 9/26

10:29 pm-12:16 am

Nonstop2h 47m

$129

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 9/12

1:15 pm-4:56 pm

Nonstop2h 41m

Denver Intl

Mon 9/15

6:00 am-9:42 pm

1 stop16h 42m

$130

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 9/24

7:10 am-10:47 am

Nonstop2h 37m

Denver Intl

Fri 9/26

6:29 pm-12:15 am

1 stop6h 46m

$131

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 9/22

11:57 pm-9:01 am

1 stop8h 04m

Denver Intl

Tue 9/30

8:41 pm-10:30 pm

Nonstop2h 49m

$132

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 9/22

9:31 am-5:38 pm

1 stop7h 07m

Denver Intl

Sun 9/28

6:30 am-8:15 am

Nonstop2h 45m

$133

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 9/19

7:07 pm-10:48 pm

Nonstop2h 41m

Denver Intl

Mon 9/29

10:29 pm-12:16 am

Nonstop2h 47m

$134

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 9/23

7:10 am-10:47 am

Nonstop2h 37m

Denver Intl

Wed 10/1

11:40 am-4:24 pm

1 stop5h 44m

$140

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 9/20

10:49 am-2:30 pm

Nonstop2h 41m

Denver Intl

Sat 9/27

11:40 am-4:24 pm

1 stop5h 44m

$152

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from San Francisco to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from San Francisco is in October. Flight prices, which tend to average around $190, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in October, then you should wait until January to fly from San Francisco, when ticket prices are also cheap, with an average price of $192.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Saturday when prices can be found for as low as $303. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $376.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $255. Flights at noon are often more expensive with an average ticket price of $344.

What is the cheapest San Francisco to Denver Intl flight route?

Fly from San Francisco to Denver Intl for the best San Francisco - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $228 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Francisco for as low as $177 on momondo.

What cabin class options are available on San Francisco to Denver Intl flights?

There are 4 cabin classes available to choose from on San Francisco to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Denver flights?

No. A direct flight is the cheapest option for a flight between San Francisco to Denver.

How have San Francisco to Denver flight prices changed over time?

As of August 2025, prices for San Francisco to Denver flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Denver (SFO to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Denver

Best Price Found

$135

Fastest flight time

2h 25m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from San Francisco in the past 72 hours is $135. The best round-trip flight deal from San Francisco to Denver found on momondo in the last 72 hours is $210.
The fastest flight from San Francisco to Denver takes 2h 25m
Direct flights go from San Francisco to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is San Francisco to Denver Intl by plane?

    The distance between San Francisco and Denver Intl is about 946.3 mi. 2h 37m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to Denver Intl Airport?

    Prices for flights from San Francisco Airport to Denver Intl Airport were last updated today.

  • How many operators does momondo search for flights from San Francisco Airport to Denver Intl Airport?

  • How old do you have to be to fly from San Francisco Airport to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Francisco to Denver?

  • What is the most popular airline from San Francisco to Denver?

Best airlines flying from San Francisco to Denver

Compare and see reviews for airlines that fly from San Francisco to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $64Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
Allegiant AirPriceFrom $88Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $116Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
American AirlinesPriceFrom $176Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $206Free CancellationRating
7.9
7,981 reviews
Search Delta flights

  • Southwest Flights From San Francisco to Denver

    Southwest operates around 26 flights from San Francisco to Denver every week. The average price of these flights found in the last 72 hours has been $275, but momondo users have found Southwest deals from San Francisco to Denver from as low as $157 round-trip. Southwest has been scored 8.0/10 in 4,245 reviews.

  • United Airlines Flights From San Francisco to Denver

    $162 is the best United Airlines flight deal from San Francisco to Denver found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $337, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,930 user reviews) flies into Denver from San Francisco 65 times in an average week so prices can vary.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Longmont
Boulder
Manitou Springs
Lakewood
Greeley
Westminster
Thornton
Winter Park
Grand Lake
Copper Mountain
Silverthorne
Frisco
Centennial

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Denver?

It is quick and easy to find San Francisco to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

Can I find flights from San Francisco to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Denver?

Once you have performed a search for San Francisco to Denver flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Francisco to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Francisco to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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