Cheap flights from San Francisco to Denver from $43

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 8/26. 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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Cheap round-trip flights

Frontier Logo
6:29 am - 10:08 amSFO-DEN
2h 39mnonstop
Frontier Logo
8:41 pm - 10:30 pmDEN-SFO
2h 49mnonstop
$92Frontier
Find Deal
Mon, Sep 22 - Wed, Sep 24
Frontier Logo
10:49 am - 2:30 pmSFO-DEN
2h 41mnonstop
Frontier Logo
8:41 pm - 10:30 pmDEN-SFO
2h 49mnonstop
$96Frontier
Find Deal
Sat, Sep 27 - Tue, Sep 30
Frontier Logo
6:50 am - 10:30 amSFO-DEN
2h 40mnonstop
Frontier Logo
8:45 pm - 10:33 pmDEN-SFO
2h 48mnonstop
$106Frontier
Find Deal
Wed, Aug 20 - Sat, Aug 23
Frontier Logo
6:37 am - 10:17 amSFO-DEN
2h 40mnonstop
Frontier Logo
9:36 pm - 11:25 pmDEN-SFO
2h 49mnonstop
$107Frontier
Find Deal
Sat, Aug 9 - Sat, Aug 16
Frontier Logo
6:00 am - 9:44 amSFO-DEN
2h 44mnonstop
Frontier Logo
10:29 pm - 12:14 amDEN-SFO
2h 45mnonstop
$111Frontier
Find Deal
Wed, Oct 29 - Thu, Oct 30
Frontier Logo
6:37 am - 10:17 amSFO-DEN
2h 40mnonstop
Frontier Logo
9:36 pm - 11:25 pmDEN-SFO
2h 49mnonstop
$112Frontier
Find Deal
Tue, Aug 5 - Tue, Aug 12
United Airlines Logo
6:30 am - 10:10 amSFO-DEN
2h 40mnonstop
United Airlines Logo
1:26 pm - 3:10 pmDEN-SFO
2h 44mnonstop
$133United Airlines
Find Deal
Wed, Aug 6 - Wed, Aug 13
Southwest Logo
5:15 am - 8:40 amSFO-DEN
2h 25mnonstop
Southwest Logo
9:35 pm - 11:10 pmDEN-SFO
2h 35mnonstop
$148Southwest
Find Deal
Sat, Aug 23 - Mon, Aug 25
American Airlines Logo
11:21 am - 5:29 pmSFO-DEN
5h 08m1 stop
American Airlines Logo
2:35 pm - 8:01 pmDEN-SFO
6h 26m1 stop
$159American Airlines
Find Deal
Thu, Aug 7 - Mon, Aug 11
United Airlines Logo
5:00 am - 8:35 amSFO-DEN
2h 35mnonstop
United Airlines Logo
11:28 am - 3:01 pmDEN-SFO
4h 33m1 stop
$163United Airlines
Find Deal
Sat, Aug 30 - Tue, Sep 2

Frontier flights from San Francisco to Denver

Our best Frontier deals on San Francisco to Denver flight tickets
Frontier
Sep 22
SFO6:29 amSan Francisco
2h 39m
DEN10:08 amDenver Intl
Sep 24
DEN8:41 pmDenver Intl
2h 49m
SFO10:30 pmSan Francisco
Frontier
Sep 27
SFO10:49 amSan Francisco
2h 41m
DEN2:30 pmDenver Intl
Sep 30
DEN8:41 pmDenver Intl
2h 49m
SFO10:30 pmSan Francisco
Frontier
Aug 20
SFO6:50 amSan Francisco
2h 40m
DEN10:30 amDenver Intl
Aug 23
DEN8:45 pmDenver Intl
2h 48m
SFO10:33 pmSan Francisco

United Airlines flights from San Francisco to Denver

Our best United Airlines deals on San Francisco to Denver flight tickets
United Airlines
Aug 6
SFO6:30 amSan Francisco
2h 40m
DEN10:10 amDenver Intl
Aug 13
DEN1:26 pmDenver Intl
2h 44m
SFO3:10 pmSan Francisco
United Airlines
Aug 30
SFO5:00 amSan Francisco
2h 35m
DEN8:35 amDenver Intl
Sep 2
DEN11:28 amDenver Intl
4h 33m
1 stop
SFO3:01 pmSan Francisco

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 January. 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 January, then you should wait until September to fly from San Francisco, when ticket prices are also cheap, with an average price of $195.

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 $301. 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 $249. Flights at noon are often more expensive with an average ticket price of $349.

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 $224 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 $175 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?

You could potentially save up to 8% 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 July 2025, prices for San Francisco to Denver flights are approximately 6% 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 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

$43

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 $43. The best round-trip flight deal from San Francisco to Denver found on momondo in the last 72 hours is $92.
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)

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

    The distance between San Francisco and Denver Intl is about 946.3 mi. 2h 25m 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 $59Free CancellationRating
5.9
3,271 reviews
Search Frontier flights
Allegiant AirPriceFrom $88Free CancellationRating
7.2
704 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $116Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
American AirlinesPriceFrom $182Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
8.0
7,952 reviews
Search Delta flights
  • Southwest Flights From San Francisco to Denver

    Southwest operates around 31 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 4,250 reviews.

  • United Airlines Flights From San Francisco to Denver

    $158 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 $335, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,846 user reviews) flies into Denver from San Francisco 73 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
Lakewood
Manitou Springs
Greeley
Westminster
Thornton
Winter Park
Silverthorne
Copper Mountain
Grand Lake
Golden
Frisco

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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1 adult
Tue 7/15
Tue 7/22

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