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

United Airlines and Southwest are the most popular carriers operating from San Francisco to Denver Intl

How often are flights from San Francisco to Denver delayed?

Historically, on average around 17% 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 143 minutes.

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

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

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

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

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

As of January 2026, there are 301 flights per week flying from San Francisco to Denver. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.

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

As of January 2026, there are 43 flights per day flying from San Francisco to Denver. The most common time of day flights depart is 16:00, with 42% of flights taking off in the afternoon.

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

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

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 are refreshed on a daily basis.

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

The number of operators available for flights from San Francisco Airport to Denver Intl Airport is 1 as of January 2026.

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 travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

₹ 5,215 Cheap Flights from San Francisco to Denver in 2026

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Find the cheapest flights from San Francisco to Denver

Round-trip

One-way

Last minute

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Cheap return flights

Enter your travel dates to find the best prices.

08:48 - 12:28

SFO

DEN

2h 40mdirect

22:34 - 18:20

DEN

SFO

20h 46m

1 stop

₹ 12,260Frontier

Thu, 19 Feb - Mon, 23 Feb

05:10 - 08:47

SFO

DEN

2h 37mdirect

05:20 - 07:18

DEN

SFO

2h 58mdirect

₹ 12,534United Airlines

Wed, 18 Feb - Wed, 25 Feb

06:15 - 10:02

SFO

DEN

2h 47mdirect

22:34 - 18:20

DEN

SFO

20h 46m

1 stop

₹ 12,717Frontier

Thu, 19 Feb - Mon, 23 Feb

05:30 - 11:50

SFO

DEN

5h 20m

1 stop

20:55 - 22:50

DEN

SFO

2h 55mdirect

₹ 13,449Southwest

Wed, 11 Feb - Tue, 17 Feb

06:40 - 23:59

SFO

DEN

16h 19m

1 stop

18:45 - 23:59

DEN

SFO

6h 14m

1 stop

₹ 13,724Alaska Airlines

Tue, 24 Feb - Tue, 3 Mar

15:15 - 22:10

SFO

DEN

5h 55m

1 stop

10:40 - 14:20

DEN

SFO

4h 40m

1 stop

₹ 13,998Southwest

Wed, 18 Feb - Wed, 25 Feb

11:30 - 19:40

SFO

DEN

7h 10m

1 stop

20:40 - 22:30

DEN

SFO

2h 50mdirect

₹ 14,364Southwest

Tue, 24 Feb - Sat, 28 Feb

07:40 - 15:50

SFO

DEN

7h 10m

2 stops

10:40 - 14:20

DEN

SFO

4h 40m

1 stop

₹ 14,456Southwest

Wed, 18 Feb - Wed, 25 Feb

08:48 - 12:28

SFO

DEN

2h 40mdirect

06:00 - 08:03

DEN

SFO

3h 03mdirect

₹ 14,547Frontier

Thu, 19 Feb - Mon, 23 Feb

06:25 - 14:20

SFO

DEN

6h 55m

2 stops

15:10 - 20:00

DEN

SFO

5h 50m

1 stop

₹ 14,822Southwest

Wed, 11 Mar - Wed, 18 Mar

Southwest flights from San Francisco to Denver

Our best Southwest deals on San Francisco to Denver flight tickets

Southwest

18 Feb

SFO06:05San Francisco

2h 30m

DEN09:35Denver Intl

25 Feb

DEN20:25Denver Intl

2h 55m

SFO22:20San Francisco

₹ 12,534

Southwest

11 Feb

SFO05:30San Francisco

5h 20m

1 stop

DEN11:50Denver Intl

17 Feb

DEN20:55Denver Intl

2h 55m

SFO22:50San Francisco

₹ 13,449

Southwest

18 Feb

SFO15:15San Francisco

5h 55m

1 stop

DEN22:10Denver Intl

25 Feb

DEN10:40Denver Intl

4h 40m

1 stop

SFO14:20San Francisco

₹ 13,998

Alaska Airlines flights from San Francisco to Denver

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

Alaska Airlines

24 Feb

SFO06:40San Francisco

16h 19m

1 stop

DEN23:59Denver Intl

3 Mar

DEN18:45Denver Intl

6h 14m

1 stop

SFO23:59San Francisco

₹ 13,724

Alaska Airlines

24 Feb

SFO10:09San Francisco

6h 39m

1 stop

DEN17:48Denver Intl

28 Feb

DEN07:00Denver Intl

14h 36m

1 stop

SFO20:36San Francisco

₹ 15,828

Alaska Airlines

23 Feb

SFO21:32San Francisco

13h 06m

2 stops

DEN11:38Denver Intl

25 Feb

DEN18:45Denver Intl

6h 14m

1 stop

SFO23:59San Francisco

₹ 16,011

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 19/2

08:48-12:28

Nonstop2h 40m

Denver Intl

Mon 23/2

22:34-18:20

1 stop20h 46m

₹ 12,260

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 18/2

05:10-08:47

Nonstop2h 37m

Denver Intl

Wed 25/2

05:20-07:18

Nonstop2h 58m

₹ 12,534

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 19/2

06:15-10:02

Nonstop2h 47m

Denver Intl

Mon 23/2

22:34-18:20

1 stop20h 46m

₹ 12,717

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 11/2

05:30-11:50

1 stop5h 20m

Denver Intl

Tue 17/2

20:55-22:50

Nonstop2h 55m

₹ 13,449

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 24/2

06:40-23:59

1 stop16h 19m

Denver Intl

Tue 3/3

18:45-23:59

1 stop6h 14m

₹ 13,724

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 18/2

15:15-22:10

1 stop5h 55m

Denver Intl

Wed 25/2

10:40-14:20

1 stop4h 40m

₹ 13,998

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 24/2

11:30-19:40

1 stop7h 10m

Denver Intl

Sat 28/2

20:40-22:30

Nonstop2h 50m

₹ 14,364

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 18/2

07:40-15:50

2 stops7h 10m

Denver Intl

Wed 25/2

10:40-14:20

1 stop4h 40m

₹ 14,456

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 19/2

08:48-12:28

Nonstop2h 40m

Denver Intl

Mon 23/2

06:00-08:03

Nonstop3h 03m

₹ 14,547

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 11/3

06:25-14:20

2 stops6h 55m

Denver Intl

Wed 18/3

15:10-20:00

1 stop5h 50m

₹ 14,822

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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?

If you aren’t able to travel to Denver during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of ₹ 19,671.

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

The cheapest day to depart from San Francisco to Denver is on a Wednesday when prices can be found for as low as ₹ 10,014. Flights from San Francisco to Denver on a Friday will generally be more expensive and average around ₹ 33,702. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Denver from San Francisco in the evening is the least expensive time of day to depart. momondo users have found prices as low as ₹ 17,374 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are ₹ 35,212 on average. Flights to Denver from San Francisco in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 ₹ 22,095 when searching weeks before you fly. 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 ₹ 17,018 on momondo.

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

There are 3 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?

You could potentially save up to 63% on your flight if you consider stops on a San Francisco to Denver flight.

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

As of January 2026, prices for San Francisco to Denver flights are approximately 37% cheaper 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 return 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	₹ 19,056
Fastest flight time	2h 40m
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 ₹ 19,056. The best return flight deal from San Francisco to Denver found on momondo in the last 72 hours is ₹ 25,862.

The fastest flight from San Francisco to Denver takes 2h 40m

Direct flights go from San Francisco to Denver every day.

There is 1 airport in Denver. From San Francisco there are direct flights to Denver Intl (DEN).

Search flight deals

How far is San Francisco to Denver Intl by plane?
Denver Intl is 1522.9 km away from San Francisco. By plane, this route typically takes 2h 40m.
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 are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to Denver Intl Airport?
The number of operators available for flights from San Francisco Airport to Denver Intl Airport is 1 as of January 2026.
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 travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted 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 (15.93% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (15.64%), Boeing 737 MAX 9 (10.49%), and Boeing 757-300 (8.86%).
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 (100% of total bookings).

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 ₹ 5,478	Free Cancellation	Rating 5.7 3,057 reviews		Search Frontier flights

Frontier Flights From San Francisco to Denver
Frontier is one of the most popular airlines flying from San Francisco to Denver, operating 3 flights/week on average for this route. A good Frontier flight deal for San Francisco to Denver starts from ₹ 5,478 round-trip, up to an average price of ₹ 21,765. Our users have rated Frontier at 5.7/10.

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Boulder

Estes Park

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Denver . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Denver from San Francisco which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

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, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from San Francisco to Denver from ₹ 6,313

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 28/4. 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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Big names, great deals

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Southwest flights from San Francisco to Denver

Our best Southwest deals on San Francisco to Denver flight tickets

Alaska Airlines flights from San Francisco to Denver

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

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See travel insights to Denver from

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

What is the cheapest month to fly to Denver?

If you aren’t able to travel to Denver during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of ₹ 19,671.

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

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

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 3 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?

You could potentially save up to 63% on your flight if you consider stops on a San Francisco to Denver flight.

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

As of January 2026, prices for San Francisco to Denver flights are approximately 37% cheaper when compared to flights at the same time last year.

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

United Airlines and Southwest are the most popular carriers operating from San Francisco to Denver Intl

How often are flights from San Francisco to Denver delayed?

Historically, on average around 17% 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 143 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 departing 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 that experiences the fewest delays on this flight route. Sunday 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, United Airlines have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

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

As of January 2026, there are 43 flights per day flying from San Francisco to Denver. The most common time of day flights depart is 16:00, with 42% of flights taking off in the afternoon.

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

As of January 2026, there are 301 flights per week flying from San Francisco to Denver. The most common day of the week flights depart is Wed, with 16% of flights taking off 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

Frontier Flights From San Francisco to Denver

Travelling 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, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado