What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

How many flights depart from San Francisco to Denver on average per week?

The number of flights available between San Francisco and Denver is 273 per week as of November 2025. The most frequent departure day is Sun, with 18% of weekly flights leaving on this day.

How often are flights from San Francisco to Denver delayed?

Historically, on average around 16% of flights between San Francisco and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

Which airline has the best punctuality record on San Francisco to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

What is the most punctual flight time for San Francisco to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What airlines fly to Denver?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from San Francisco according to our data. Frontier is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 7 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Francisco to Denver Intl?

Frontier and Alaska Airlines are the most popular carriers operating from San Francisco to Denver Intl

How many flights depart from San Francisco to Denver on average per day?

As of November 2025, there are 39 flights per day flying from San Francisco to Denver. The most common time of day flights depart is 4:00PM, with 44% of flights taking off at noon.

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?

As of November 2025, there are 6 operators available to choose from 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.

$57 Cheap Flights from San Francisco to Denver in 2025/26

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2:13 pm - 10:03 amSFO-DEN

18h 50m1 stop

6:10 am - 8:03 amDEN-SFO

2h 53mnonstop

$107Frontier

Find Deal

Wed, Dec 31 - Fri, Jan 9

5:02 pm - 11:58 pmSFO-DEN

5h 56m1 stop

6:10 am - 8:03 amDEN-SFO

2h 53mnonstop

$108Multiple Airlines

Find Deal

Wed, Jan 7 - Sun, Jan 11

10:41 am - 8:04 pmSFO-DEN

8h 23m1 stop

6:10 am - 8:03 amDEN-SFO

2h 53mnonstop

$109Frontier

Find Deal

Thu, Jan 8 - Sun, Jan 11

6:00 am - 9:04 amSFO-DEN

26h 04m1 stop

6:00 am - 7:53 amDEN-SFO

2h 53mnonstop

$110Frontier

Find Deal

Wed, Dec 10 - Mon, Dec 15

6:24 am - 10:06 amSFO-DEN

2h 42mnonstop

8:00 am - 1:11 pmDEN-SFO

6h 11m1 stop

$111Frontier

Find Deal

Wed, Dec 31 - Thu, Jan 8

6:24 am - 10:06 amSFO-DEN

2h 42mnonstop

8:04 am - 2:02 pmDEN-SFO

6h 58m1 stop

$112Multiple Airlines

Find Deal

Thu, Jan 1 - Wed, Jan 7

6:15 am - 9:57 amSFO-DEN

2h 42mnonstop

8:45 pm - 10:42 pmDEN-SFO

2h 57mnonstop

$113Frontier

Find Deal

Thu, Feb 12 - Wed, Feb 18

8:48 am - 12:30 pmSFO-DEN

2h 42mnonstop

6:00 am - 7:53 amDEN-SFO

2h 53mnonstop

$114Frontier

Find Deal

Fri, Dec 12 - Sun, Dec 14

8:16 pm - 8:38 amSFO-DEN

11h 22m1 stop

6:48 pm - 8:46 pmDEN-SFO

2h 58mnonstop

$115Frontier

Find Deal

Tue, Dec 30 - Wed, Jan 14

6:30 am - 10:12 amSFO-DEN

2h 42mnonstop

6:00 am - 7:53 amDEN-SFO

2h 53mnonstop

$116Frontier

Find Deal

Sat, Dec 13 - Sun, Dec 14

Frontier flights from San Francisco to Denver

Our best Frontier deals on San Francisco to Denver flight tickets

Frontier

Dec 31

SFO2:13 pmSan Francisco

18h 50m

1 stop

DEN10:03 amDenver Intl

Jan 9

DEN6:10 amDenver Intl

2h 53m

SFO8:03 amSan Francisco

$107

Find similar

Frontier

Jan 8

SFO10:41 amSan Francisco

8h 23m

1 stop

DEN8:04 pmDenver Intl

Jan 11

DEN6:10 amDenver Intl

2h 53m

SFO8:03 amSan Francisco

$109

Find similar

Frontier

Dec 10

SFO6:00 amSan Francisco

26h 04m

1 stop

DEN9:04 amDenver Intl

Dec 15

DEN6:00 amDenver Intl

2h 53m

SFO7:53 amSan Francisco

$110

Find similar

Alaska Airlines flights from San Francisco to Denver

Our best Alaska Airlines deals on San Francisco to Denver flight tickets

Alaska Airlines

Jan 7

SFO5:02 pmSan Francisco

5h 56m

1 stop

DEN11:58 pmDenver Intl

Jan 9

DEN12:34 pmDenver Intl

6h 14m

1 stop

SFO5:48 pmSan Francisco

$136

Find similar

Alaska Airlines

Jan 17

SFO2:30 pmSan Francisco

8h 05m

1 stop

DEN11:35 pmDenver Intl

Jan 28

DEN8:04 amDenver Intl

6h 58m

1 stop

SFO2:02 pmSan Francisco

$153

Find similar

Alaska Airlines

Jan 30

SFO5:16 pmSan Francisco

5h 42m

1 stop

DEN11:58 pmDenver Intl

Feb 1

DEN11:49 amDenver Intl

7h 54m

1 stop

SFO6:43 pmSan Francisco

$156

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 12/31

2:13 pm-10:03 am

1 stop18h 50m

Denver Intl

Fri 1/9

6:10 am-8:03 am

Nonstop2h 53m

$107

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 1/7

5:02 pm-11:58 pm

1 stop5h 56m

Denver Intl

Sun 1/11

6:10 am-8:03 am

Nonstop2h 53m

$108

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 1/8

10:41 am-8:04 pm

1 stop8h 23m

Denver Intl

Sun 1/11

6:10 am-8:03 am

Nonstop2h 53m

$109

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 12/10

6:00 am-9:04 am

1 stop26h 04m

Denver Intl

Mon 12/15

6:00 am-7:53 am

Nonstop2h 53m

$110

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 12/31

6:24 am-10:06 am

Nonstop2h 42m

Denver Intl

Thu 1/8

8:00 am-1:11 pm

1 stop6h 11m

$111

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 1/1

6:24 am-10:06 am

Nonstop2h 42m

Denver Intl

Wed 1/7

8:04 am-2:02 pm

1 stop6h 58m

$112

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 2/12

6:15 am-9:57 am

Nonstop2h 42m

Denver Intl

Wed 2/18

8:45 pm-10:42 pm

Nonstop2h 57m

$113

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 12/12

8:48 am-12:30 pm

Nonstop2h 42m

Denver Intl

Sun 12/14

6:00 am-7:53 am

Nonstop2h 53m

$114

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 12/30

8:16 pm-8:38 am

1 stop11h 22m

Denver Intl

Wed 1/14

6:48 pm-8:46 pm

Nonstop2h 58m

$115

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 12/13

6:30 am-10:12 am

Nonstop2h 42m

Denver Intl

Sun 12/14

6:00 am-7:53 am

Nonstop2h 53m

$116

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from San Francisco is in January. Flight prices, which tend to average around $178, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until March to fly from San Francisco, when ticket prices are also cheap, with an average price of $201.

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 Friday when prices can be found for as low as $307. 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 $375.

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 $258. Flights at noon are often more expensive with an average ticket price of $378.

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 $232 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 $193 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 November 2025, prices for San Francisco to Denver flights are approximately 83% 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	$134
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 $134. The best round-trip flight deal from San Francisco to Denver found on momondo in the last 72 hours is $214.

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 30m 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?
As of November 2025, there are 6 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to Denver is Airbus A321neo (14.83% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (14.55%), Boeing 737 MAX 9 (12.04%), and Airbus A320neo (9.74%).
What is the most popular airline from San Francisco to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to Denver is Frontier (54% of total bookings). The next most popular airlines are United Airlines (29%), Southwest (16%), and Allegiant Air (0%).

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
Frontier	PriceFrom $69	Free Cancellation	Rating 5.8 3,096 reviews	Search Frontier flights
Allegiant Air	PriceFrom $88	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Southwest	PriceFrom $157	Free Cancellation	Rating 8.0 4,252 reviews	Search Southwest flights
United Airlines	PriceFrom $169	Free Cancellation	Rating 7.4 9,038 reviews	Search United Airlines flights
American Airlines	PriceFrom $176	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 7,994 reviews	Search Delta flights

Southwest Flights From San Francisco to Denver
Southwest operates around 20 flights from San Francisco to Denver every week. The average price of these flights found in the last 72 hours has been $277, 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 4,252 reviews.
United Airlines Flights From San Francisco to Denver
$169 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 $334, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,038 user reviews) flies into Denver from San Francisco 49 times in an average week so prices can vary.

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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.

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Cheap flights from San Francisco to Denver from $70

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 1/6. 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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Frontier flights from San Francisco to Denver

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Our best Alaska Airlines deals on San Francisco to Denver flight tickets

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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?

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 Friday when prices can be found for as low as $307. 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 $375.

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 $258. Flights at noon are often more expensive with an average ticket price of $378.

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?

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 November 2025, prices for San Francisco to Denver flights are approximately 83% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from San Francisco to Denver Intl?

Frontier and Alaska Airlines are the most popular carriers operating from San Francisco to Denver Intl

What airlines fly to Denver?

How often are flights from San Francisco to Denver delayed?

Historically, on average around 16% of flights between San Francisco and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What is the most punctual flight time for San Francisco to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Francisco to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

How many flights depart from San Francisco to Denver on average per day?

As of November 2025, there are 39 flights per day flying from San Francisco to Denver. The most common time of day flights depart is 4:00PM, with 44% of flights taking off at noon.

How many flights depart from San Francisco to Denver on average per week?

The number of flights available between San Francisco and Denver is 273 per week as of November 2025. The most frequent departure day is Sun, with 18% of weekly flights leaving on this day.

When to book flights from San Francisco to Denver

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

Fastest flight time

Direct flights

Airports in Denver

How far is San Francisco to Denver Intl by plane?

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

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?

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

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

Southwest Flights From San Francisco to Denver

United Airlines Flights From San Francisco to Denver

Traveling to a place near Denver?

Why use momondo?

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

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

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

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

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.

Get notified when prices go down