Find Cheap Flights from San Francisco to Denver (SFO - DEN)

Flights overview

Useful information for finding cheap flights from San Francisco to Denver and booking your next trip

Cheapest round-trip flights	$72	Frontier Nonstop 3 hr Sat, Feb 28 — Sun, Mar 1	The cheapest round-trip flight from San Francisco to Denver is currently $72
Cheapest one-way flight	$28	Frontier Nonstop 3 hr Wed, Feb 25	The cheapest one-way flight from San Francisco to Denver is currently $28
Last-minute weekend getaway	$220	Frontier Nonstop 3 hr Sat, Jan 31 — Mon, Feb 2	The cheapest last-minute weekend getaway from San Francisco to Denver is currently $220
Cheapest business class flights	$547	United Nonstop 3 hr Sat, Mar 7 — Mon, Mar 9	The cheapest business class round-trip flight from San Francisco to Denver is currently $547

Fastest flight	2 hr 25 min	The fastest nonstop flight from San Francisco to Denver takes 2 hr 25 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from San Francisco to Denver is typically February. The most expensive month to fly is typically July.

February Cheapest	Typical prices: $75–175
July Most expensive	Typical prices: $160–280

Popular airlines from San Francisco to Denver

United

Nonstop

from $177

Typical price: $175–360

62 weekly nonstop flights

SFO - DEN Every day

756 weekly connecting flights

SFO - DEN Every day
Southwest

Nonstop

from $177

Typical price: $175–400

25 weekly nonstop flights

SFO - DEN Every day

216 weekly connecting flights

SFO - DEN Every day
Frontier

Nonstop

from $72

Typical price: $95–230

7 weekly nonstop flights

SFO - DEN Every day

36 weekly connecting flights

SFO - DEN Every day
American

from $287

Typical price: $215–510

109 weekly connecting flights

SFO - DEN Every day
Delta

from $207

Typical price: $215–520

109 weekly connecting flights

SFO - DEN Every day
Alaska

from $249

Typical price: $235–580

73 weekly connecting flights

SFO - DEN Every day

Popular airports near San Francisco

San Francisco International Airport (SFO)

San Francisco United States 19 min 11 mi
Oakland International Airport (OAK)

Oakland United States 27 min 11 mi
Sacramento International Airport (SMF)

Sacramento United States 1 hr 33 min 78 mi
San Jose Mineta International Airport (SJC)

San Jose United States 51 min 39 mi

Popular airports near Denver

Denver International Airport (DEN)

Denver United States 38 min 19 mi
Colorado Springs Airport (COS)

Colorado Springs United States 1 hr 26 min 66 mi
Centennial Airport (APA)

Denver United States 27 min 14 mi
Eagle County Regional Airport (EGE)

Vail United States 2 hr 18 min 103 mi

Frequently asked questions about flying from San Francisco to Denver

The cheapest flights from San Francisco to Denver are usually in February. Typical ticket prices in February range from $75 to $175.

The cheapest round-trip flight from San Francisco to Denver recently found on Google Flights was with Frontier from $72. The cheapest one-way flight was with Frontier from $28.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from San Francisco to Denver is $177, flying from Feb 28 to Mar 1.
The cheapest Southwest flight from San Francisco to Denver is $177, flying from Feb 28 to Mar 1.
The cheapest Frontier flight from San Francisco to Denver is $72, flying from Feb 28 to Mar 1.
The cheapest American flight from San Francisco to Denver is $287, flying from Apr 25 to Apr 27.
The cheapest Delta flight from San Francisco to Denver is $207, flying from Feb 28 to Mar 2.
The cheapest Alaska flight from San Francisco to Denver is $249, flying from Mar 7 to Mar 9.

The cheapest round-trip flight from San Francisco to Denver starts at $72 from Sat, Feb 28 to Sun, Mar 1. The cheapest one-way flight starts at $28 and departs on Wed, Feb 25.

2 hr 25 min is the shortest flight time from San Francisco to Denver.

Denver’s mild summer months (Jun–Aug) are a popular time for visitors exploring the city and nearby national parks. The ski season runs through winter (Nov–Mar). Major events include the National Western Stock Show & Rodeo (Jan) and A Taste of Colorado (Sep) food and arts festival.

It's easy to use Google Flights to find the cheapest days to fly from San Francisco to Denver.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from San Francisco to Denver really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Francisco to Denver.

In terms of nonstop flights, United is the most popular. United offers 62 nonstop flights and 756 connecting flights per week. United flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .

Other popular airlines flying from San Francisco to Denver are:

Southwest offers 25 nonstop flights and 216 connecting flights per week. Southwest flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .
Frontier offers 7 nonstop flights and 36 connecting flights per week. Frontier flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .
American offers 109 connecting flights per week. American flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .
Delta offers 109 connecting flights per week. Delta flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .
Alaska offers 73 connecting flights per week. Alaska flies from San Francisco International Airport (SFO) to Denver International Airport (DEN) .

The number of connecting flights refers to distinct flights with at least one stop between San Francisco and Denver.

The cheapest round-trip flight from San Francisco to Denver recently found on Google Flights was with Frontier from $72. The cheapest one-way flight was with Frontier from $28.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from San Francisco to Denver is $177, flying from Feb 28 to Mar 1.
The cheapest Southwest flight from San Francisco to Denver is $177, flying from Feb 28 to Mar 1.
The cheapest Frontier flight from San Francisco to Denver is $72, flying from Feb 28 to Mar 1.
The cheapest American flight from San Francisco to Denver is $287, flying from Apr 25 to Apr 27.
The cheapest Delta flight from San Francisco to Denver is $207, flying from Feb 28 to Mar 2.
The cheapest Alaska flight from San Francisco to Denver is $249, flying from Mar 7 to Mar 9.

United, Southwest and Frontier fly direct from San Francisco to Denver.

There are 62 United direct flights from San Francisco to Denver per week. Flights are available every day.
There are 25 Southwest direct flights from San Francisco to Denver per week. Flights are available every day.
There are 7 Frontier direct flights from San Francisco to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between San Francisco and Denver at price $220 is offered by Frontier from Sat, Jan 31 to Mon, Feb 2.

United, Southwest and Frontier fly direct from San Francisco to Denver.

There are 62 United direct flights from San Francisco to Denver per week. Flights are available every day.
There are 25 Southwest direct flights from San Francisco to Denver per week. Flights are available every day.
There are 7 Frontier direct flights from San Francisco to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from San Francisco to Denver on a daily basis.

The cheapest direct (nonstop) round-trip flights between San Francisco and Denver start at $72 from Sat, Feb 28 to Sun, Mar 1 with Frontier.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Francisco to Denver, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between San Francisco and Denver start at $547 from Sat, Mar 7 to Mon, Mar 9 with United.

The cheapest economy class round-trip flights between San Francisco and Denver start at $72 from Sat, Feb 28 to Sun, Mar 1.

To book business class trips from San Francisco to Denver, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between San Francisco and Denver starts at $220 from Sat, Jan 31 to Mon, Feb 2 with Frontier.

The cheapest last-minute deal between San Francisco and Denver at price $220 is offered by Frontier from Sat, Jan 31 to Mon, Feb 2.

To find last-minute flight deals from San Francisco to Denver, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.