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Cheap flights from San Francisco to Denver from $100

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 2/9. 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 return flights

Southwest Logo
05:55 - 09:25SFO-DEN
2h 30mdirect
Southwest Logo
20:50 - 22:25DEN-SFO
2h 35mdirect
$201Southwest
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Tue, 19 Aug - Tue, 26 Aug
United Airlines Logo
06:30 - 10:10SFO-DEN
2h 40mdirect
United Airlines Logo
13:26 - 15:10DEN-SFO
2h 44mdirect
$202United Airlines
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Wed, 6 Aug - Wed, 13 Aug
Frontier Logo
06:50 - 10:30SFO-DEN
2h 40mdirect
Frontier Logo
20:45 - 22:33DEN-SFO
2h 48mdirect
$214Frontier
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Tue, 19 Aug - Sat, 23 Aug
Southwest Logo
05:55 - 09:25SFO-DEN
2h 30mdirect
Southwest Logo
15:35 - 21:25DEN-SFO
6h 50m1 stop
$216Southwest
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Wed, 13 Aug - Sat, 16 Aug
Southwest Logo
05:15 - 08:40SFO-DEN
2h 25mdirect
Southwest Logo
15:35 - 21:25DEN-SFO
6h 50m1 stop
$217Southwest
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Sat, 9 Aug - Sat, 16 Aug
Frontier Logo
06:50 - 10:30SFO-DEN
2h 40mdirect
Frontier Logo
15:44 - 20:58DEN-SFO
6h 14m1 stop
$228Frontier
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Tue, 19 Aug - Sat, 23 Aug
Delta Logo
10:55 - 23:49SFO-DEN
11h 54m1 stop
Delta Logo
12:32 - 22:09DEN-SFO
10h 37m1 stop
$278Delta
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Wed, 27 Aug - Sat, 30 Aug
Alaska Airlines Logo
06:00 - 14:06SFO-DEN
7h 06m1 stop
Alaska Airlines Logo
11:40 - 16:24DEN-SFO
5h 44m1 stop
$280Alaska Airlines
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Tue, 26 Aug - Sun, 31 Aug
Delta Logo
05:35 - 23:03SFO-DEN
16h 28m1 stop
Delta Logo
19:21 - 07:51DEN-SFO
13h 30m1 stop
$310Delta
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Thu, 28 Aug - Tue, 2 Sep
Alaska Airlines Logo
08:00 - 17:21SFO-DEN
8h 21m1 stop
Alaska Airlines Logo
18:17 - 23:44DEN-SFO
6h 27m1 stop
$313Alaska Airlines
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Tue, 26 Aug - Mon, 8 Sep

Southwest flights from San Francisco to Denver

Our best Southwest deals on San Francisco to Denver flight tickets
Southwest
19 Aug
SFO05:55San Francisco
2h 30m
DEN09:25Denver Intl
26 Aug
DEN20:50Denver Intl
2h 35m
SFO22:25San Francisco
$201
Find similar
Southwest
13 Aug
SFO05:55San Francisco
2h 30m
DEN09:25Denver Intl
16 Aug
DEN15:35Denver Intl
6h 50m
1 stop
SFO21:25San Francisco
$216
Find similar
Southwest
9 Aug
SFO05:15San Francisco
2h 25m
DEN08:40Denver Intl
16 Aug
DEN15:35Denver Intl
6h 50m
1 stop
SFO21:25San Francisco
$217
Find similar

United Airlines flights from San Francisco to Denver

Our best United Airlines deals on San Francisco to Denver flight tickets
United Airlines
6 Aug
SFO06:30San Francisco
2h 40m
DEN10:10Denver Intl
13 Aug
DEN13:26Denver Intl
2h 44m
SFO15:10San Francisco
$202
Find similar
United Airlines
6 Aug
SFO06:30San Francisco
2h 40m
DEN10:10Denver Intl
10 Aug
DEN08:02Denver Intl
2h 43m
SFO09:45San Francisco
$233
Find similar
United Airlines
28 Aug
SFO05:00San Francisco
2h 35m
DEN08:35Denver Intl
1 Sept
DEN06:08Denver Intl
2h 42m
SFO07:50San Francisco
$263
Find similar

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?

In general, January is the cheapest month to fly from San Francisco to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. If you aren’t able to travel during the month of January, then book flights to Denver from San Francisco during September instead. Flights to Denver in September, while not as cheap as those in January, still average around $296.

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

According to our data, Monday is the cheapest day to fly to Denver from San Francisco. The lowest ticket price found for a Monday departure recently was $97. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Denver for around $1,425.

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

According to our data, the cheapest time of day to fly to Denver is in the morning. momondo users have found flights departing from San Francisco to Denver in the morning for as low as $358. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Denver is at midday when prices are around $421.

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 $340 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 $266 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.

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 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

$100

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 $100. The best return flight deal from San Francisco to Denver found on momondo in the last 72 hours is $201.
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)
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  • How far is San Francisco to Denver Intl by plane?

    San Francisco and Denver Intl are 1522.9 km apart from one another. By plane, this route typically takes 2h 25m.

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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 $97Free cancellationRating
5.9
3,267 reviews
Search Frontier flights

  • Frontier Flights From San Francisco to Denver

    Frontier operates around 7 flights from San Francisco to Denver every week. The average price of these flights found in the last 72 hours has been $74, but momondo users have found Frontier deals from San Francisco to Denver from as low as $64 round-trip. Frontier has been scored 5.9/10 in 3,267 reviews.

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Broomfield
Keystone

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?

All flight searches from San Francisco to Denver on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Denver from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for San Francisco to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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