$136 Find Cheap Flights from San Francisco to Denver – Compare and Save

The RTD bus service connects Denver Airport with the city and departs every 15m from the airport. The bus stop is located at the DEN Transit Center at the south end of Jeppesen Terminal. There is also an information counter in the arrivals hall if you have any questions about routes, fares, or directions. Day passes can be purchased for approximately $9 in cash (no change given) at the bus driver or with credit cards at the ticket machines.

If you land at Jeppesen Terminal and fancy authentic American cuisine, opt for the Boulder Beer Tap House at level 5 on the west side of the terminal. Here you can consume scrumptious snacks, warm dishes, and craft beer. For Mexican food, the Cantina Grill at level 6 is also a good option to get something hearty to eat.

Explore the city and its surroundings conveniently with your own four wheels and rent a car directly from one of the companies located at the airport. The airport has its own car rental center which can be reached with a courtesy shuttle departing from Jeppesen Terminal at level 5, island 4. Companies operating at the airport include Avis, Thrifty, and Enterprise, which are at your service 24/7.

The Westin Denver International Airport Hotel is just a few steps from the terminal building and provides transit flyers, late arrivals, or early departing passengers with a nearby bed. Apart from its over 500 rooms, the hotel boasts a conference center, pool, and gym, as well as various restaurants.

Among airlines operating San Francisco to Denver flights:

• Frontier: offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between San Francisco and Denver. The airlines offering direct flights on this route include:

• United Airlines
• Southwest
• Frontier

Flights from San Francisco to Denver usually depart from San Francisco (SFO) and arrive at Denver Intl (DEN).

Here are some options for this route, based on selected ticket types and cabin classes:

• Frontier: a cabin bag and a checked bag in Economy class
• United Airlines: a cabin bag and a checked bag in Economy class
• Southwest: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy class is available on flights from San Francisco to Denver.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average $335 return via San Diego (SAN), compared with $397 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge $55–$139 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and United Airlines. Other aircraft seen on the route include Airbus A321neo variants.

One-stop flights from San Francisco to Denver most commonly connect through:

• Las Vegas Harry Reid Intl (LAS) – 61% of one-stop connections
• Salt Lake City (SLC) – 16% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) – 9% of one-stop connections
• San Diego (SAN) – 6% of one-stop connections

Las Vegas Harry Reid Intl (LAS) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 20% on the San Francisco to Denver route. Tuesday is the cheapest departure day at $356 return on average, while Monday is the most expensive at $443, a difference of $87. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Francisco to Denver route, 18% of flights were delayed in the past 3 months, with delays averaging 2 hours 31 minutes.

Morning is the busiest departure period on San Francisco to Denver flights, with 51% leaving in that window. Afternoon departures account for 31%, Evening flights for 12%, and Night flights for 6%.

Some of the most popular sights in Denver are Union Station Denver and Ball Arena. These are among the most viewed places in Denver on KAYAK.

These are the earliest and latest flight times available from San Francisco to Denver:

• Earliest: departs at 05:00 and lands at 07:40
• Latest: departs at 22:35 and lands at 01:15.

The flight takes about 2h 40m.

Last-minute fares on this route (booked within 2 weeks of departure) run 28% above the route average of $395. Book 8 weeks before departure for the lowest fares.

A direct flight from San Francisco to Denver takes 2h 40m, covering 2,497 km.

No. A passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from San Francisco to Denver are currently lower than usual. Average one-way flight prices are about $159, which is 39% below the typical average for this route.

United Airlines is slightly above the route average for timely arrivals, while Frontier has a lower on-time arrival rate. On-time arrival rates on San Francisco to Denver flights are:

• United Airlines: 88% on time
• Frontier: 80% on time
• Southwest: 68% on time

On average, flights on this route are punctual 82% of the time.

Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Portland (PDX) gives the shortest average 1-stop total travel time of 5h 37m, compared to 6h 04m via Phoenix Sky Harbor Intl (PHX) and 6h 26m via Salt Lake City (SLC).

Denver is 1 hour ahead of San Francisco (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Denver Intl Airport (DEN) hosts 5 major car hire companies, with daily rates starting from around $22 for economy cars. Top options include:
· Routes Car & Truck Rentals
· Ace
· NU Car
· Europcar
· Hertz

Return flights from San Francisco to Denver range from $278 to $532, with an average of $395 over the past 12 months. Anything below $278 counts as a good deal.

JetBlue is the only airline on the San Francisco to Denver route offering in-flight Wi-Fi. Pricing depends on fare class.