DEN - SFO

£78 Find Cheap Flights from Denver to San Francisco – Compare and Save

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Everything you should know

Cheapest return flight
£138
Typical prices: £157-£298
Frontier
Fri 7/12Mon 10/12
DEN - SFO • 2 stops
Cheapest direct flights
£148
Typical prices: £158-£301
Southwest
Tue 4/12Mon 10/12
DEN - SFO • Direct
Direct flights
You can fly direct with United Airlines, Southwest, and Frontier. Average duration is 2h 51m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 78% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 10 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £113 (return)
Shortest trip • 5h 51m (one-way)
Insights
Insights
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We hope you enjoy your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Denver to San Francisco

Mon, 7 Dec - Thu, 10 Dec
Frontier Logo
10:55 - 17:34DEN  Denver Intl-SFO San Francisco
7h 39m2 stops Salt Lake City Las Vegas Harry Reid Intl
Frontier Logo
18:30 - 00:08SFO  San Francisco-DEN Denver Intl
4h 38m1 stop Las Vegas Harry Reid Intl
£139Frontier
Thu, 10 Dec - Thu, 17 Dec
Frontier Logo
08:49 - 21:46DEN  Denver Intl-SFO San Francisco
13h 57m1 stop San Diego
Frontier Logo
08:44 - 22:28SFO  San Francisco-DEN Denver Intl
12h 44m2 stops Las Vegas Harry Reid Intl Salt Lake City
£141Frontier
Fri, 4 Dec - Thu, 10 Dec
Southwest Logo
20:25 - 22:15DEN  Denver Intl-SFO San Francisco
2h 50mdirect
Southwest Logo
10:55 - 14:30SFO  San Francisco-DEN Denver Intl
2h 35mdirect
£148Southwest
Sat, 5 Dec - Fri, 11 Dec
Alaska Airlines Logo
07:40 - 12:57DEN  Denver Intl-SFO San Francisco
6h 17m1 stop Portland
Alaska Airlines Logo
06:20 - 12:56SFO  San Francisco-DEN Denver Intl
5h 36m1 stop San Diego
£155Alaska Airlines
Thu, 12 Nov - Sun, 15 Nov
Southwest Logo
21:30 - 23:25DEN  Denver Intl-SFO San Francisco
2h 55mdirect
Southwest Logo
08:00 - 11:35SFO  San Francisco-DEN Denver Intl
2h 35mdirect
£156Southwest
Thu, 12 Nov - Wed, 18 Nov
Southwest Logo
21:30 - 23:25DEN  Denver Intl-SFO San Francisco
2h 55mdirect
Southwest Logo
06:10 - 09:45SFO  San Francisco-DEN Denver Intl
2h 35mdirect
£156Southwest
Sat, 12 Dec - Tue, 15 Dec
Southwest Logo
12:55 - 14:40DEN  Denver Intl-SFO San Francisco
2h 45mdirect
Southwest Logo
06:10 - 09:45SFO  San Francisco-DEN Denver Intl
2h 35mdirect
£162Southwest
Fri, 22 Jan - Tue, 26 Jan
Southwest Logo
14:45 - 18:20DEN  Denver Intl-SFO San Francisco
4h 35m1 stop Hollywood Burbank
Southwest Logo
13:25 - 16:55SFO  San Francisco-DEN Denver Intl
2h 30mdirect
£164Southwest
Tue, 1 Dec - Tue, 1 Dec
Alaska Airlines Logo
07:40 - 17:10DEN  Denver Intl-SFO San Francisco
10h 30m2 stops Portland Los Angeles
Alaska Airlines Logo
18:29 - 14:24SFO  San Francisco-DEN Denver Intl
18h 55m1 stop Portland
£166Alaska Airlines
Mon, 9 Nov - Tue, 17 Nov
Alaska Airlines Logo
14:56 - 19:49DEN  Denver Intl-SFO San Francisco
5h 53m1 stop Portland
Alaska Airlines Logo
07:04 - 12:57SFO  San Francisco-DEN Denver Intl
4h 53m1 stop San Diego
£167Alaska Airlines
Booking Insights

Price, demand, and travel trends for Denver to San Francisco flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Denver to San Francisco?

Return flights from Denver to San Francisco typically range from £157 to £298. The lowest price found in the past 5 days was £138 on Frontier.

What's the cheapest day of the week to fly from Denver to San Francisco?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Denver to San Francisco. It's 10% cheaper than the average day, while Monday is the most expensive, with prices 22% higher.

What is the cheapest month to fly from Denver to San Francisco?

•February is the cheapest month to fly from Denver to San Francisco at £168 return.
•July (£263) and June (£259) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 56% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Denver to San Francisco the cheapest?

Flights from Denver to San Francisco are cheapest 10 weeks before departure. Booking in this window typically costs about 43% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Denver to San Francisco flights

Low season

August

Cheapest flight

£78
Beat the crowds with an average 17% drop in traveller numbers.
The most popular month to fly with an average 20% increase in traveller numbers.
One-way flight from Denver to San Francisco

When to book flights from Denver to San Francisco

Are your dates flexible? Find out the best times to travel from Denver to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Denver to San Francisco flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Denver to San Francisco?

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

    • Earliest: departs at 05:00 and lands at 07:51
    • Latest: departs at 23:55 and lands at 02:46.

    The flight takes about 2h 51m.

  • Which cabin classes can I book on flights from Denver to San Francisco?

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

  • How long is a flight from Denver to San Francisco?

    A direct flight from Denver to San Francisco takes 2h 51m, covering 964 miles.

  • Do I need a passport to fly from Denver to San Francisco?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

  • How much should I expect to pay for a Denver to San Francisco flight?

    Return flights from Denver to San Francisco range from £157 to £298, with an average of £225 over the past 12 months. Anything below £157 counts as a good deal.

  • How expensive are last-minute Denver to San Francisco flights?

    Last-minute fares on this route (booked within two weeks of departure) run 38% above the £225 route average. Book 10 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Denver to San Francisco?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £113 return via Ontario (ONT), compared with £226 for direct.

  • How does on-time performance compare across airlines flying from Denver to San Francisco?

    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 Denver to San Francisco flights are:

    • United Airlines: 78% on time
    • Frontier: 73% on time
    • Southwest: 57% on time

    On average, flights on this route are punctual 72% of the time.

  • What is the standard checked bag allowance on flights from Denver to San Francisco?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £30–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Denver to San Francisco?

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

  • How are flight departures from Denver to San Francisco spread across the day?

    Morning is the busiest departure period on Denver to San Francisco flights, with 44% leaving in that window. Evening departures account for 25%, Afternoon flights for 19%, and Night flights for 12%.

  • How are flight prices from Denver to San Francisco looking right now?

    One-way fares from Denver to San Francisco are currently lower than usual. Average one-way flight prices are about £90, which is 40% below the typical average for this route.

  • Which car hire options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car hire companies, with daily rates starting from around £11 for economy cars. Top options include:

    • Europcar
    • Thrifty
    • Dollar
    • Hertz
    • Fox

  • Which airports can I use when flying from Denver to San Francisco?

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

  • What time of day has the fewest delays on flights from Denver to San Francisco?

    Night flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed on the route from Denver to San Francisco?

    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 Denver to San Francisco route, 28% of flights were delayed in the past three months, with delays averaging 2h 24m.

  • Which airports do connecting flights from Denver to San Francisco pass through?

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

    • Las Vegas Harry Reid Intl (LAS) – 53% of one-stop connections
    • San Diego (SAN) – 17% of one-stop connections
    • Salt Lake City (SLC) – 16% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) – 11% of one-stop connections

  • Can I save money by using flexible dates for flights from Denver to San Francisco?

    Yes. Flexible dates can save you up to 27% on flights from Denver to San Francisco. Wednesday is the cheapest departure day at £204 return on average, while Monday is the most expensive at £275, a difference of £72.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Denver to San Francisco?

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

    • United Airlines
    • Southwest
    • Frontier

  • How much time can I save by choosing a different stopover airport from Denver to San Francisco?

    Flying via Las Vegas Harry Reid Intl (LAS) gives the shortest average 1-stop total travel time of 5h 51m, compared to 6h 23m via Los Angeles (LAX) and 6h 52m via San Diego (SAN).

  • What is the time difference between Denver and San Francisco?

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

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Union Square, Fisherman's Wharf, and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Denver to San Francisco flights?

    Among airlines operating Denver to San Francisco 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.

  • Which airlines include bags at no extra cost on Denver to San Francisco flights?

    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

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

  • Are there onsite hotels at San Francisco International Airport?

    While there are no hotels directly onsite at San Francisco International Airport, travelers with flights from Denver to San Francisco will be happy to hear that there are a number of hotels within close proximity. The Westin San Francisco Airport, Aloft San Francisco Airport, and San Francisco Airport Marriott Waterfront are all within two miles of the airport and offer free transportation to and from the airport.

  • Can I fly from Denver to San Francisco non-stop?

    Frontier Airlines and United Airlines both offer direct flights from Denver to San Francisco. Other airlines like Delta Air Lines and American Airlines offer one-stop flights with layovers in cities like Salt Lake City for Delta Air Lines and Phoenix for American Airlines.

  • What facilities are available for travelers with pets at San Francisco International Airport and Denver International Airport?

    In San Francisco International Airport there are seven pet relief areas available in the airport - in the Arrivals areas of Terminals 1, 2, and 3, plus there is an additional post-security pet relief area in each terminal, with Terminal 1 featuring yet another extra one. At Denver International Airport there are four pet relief areas: one in each core gate area for Gates A, B, and C, and then another one outside of Jeppesen Terminal.

  • Should I fly to San Francisco International Airport or Oakland International Airport?

    San Francisco International Airport and Oakland International Airport are both connected to BART, making them easily accessible for travelers who plan to use public transportation. However, San Francisco International Airport sits on the eastern side of the bay, while Oakland International Airport is on the western side of the bay. Thus, whether your final destination is on the eastern or western side is often the deciding factor when choosing which airport to fly into.

Your guide to booking Denver to San Francisco flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average £204, about £72 less than Monday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 43% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Denver to San Francisco trip for February. Fares historically average £168 return in that month – typically £95 less than the most expensive month, which is July (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 78% of United Airlines flights from Denver to San Francisco arrived on time, slightly above the route average of 72%. When flights on this route arrive late, they're delayed by an average of 2h 24m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Ontario Airport (ONT) can be cheaper than flying direct. The cheapest stopover option averages £113 return on this route – about £113 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.

    • Grand Hyatt At Sfo
  • Do the children need to work off a bit of energy after their flight to San Francisco? Fortunately for travelers with children, there are three children’s play areas in San Francisco International Airport: two in Terminal 3 and one in Terminal 2.
  • Denver International Airport is conveniently linked to downtown Denver area by both public transport and local highways. The A Line commuter train is the best option for travelers relying on public transport as it offers quick access to downtown straight from the airport.
  • Driving a car to Denver International Airport? The airport’s parking is located onsite at the airport. Covered parking is located outside Jeppesen Terminal. The shuttle buses, every 10 minutes, are found at Jeppesen Terminal on Level 5’s Island 4.
  • It never hurts to stretch the legs or get a bit of a workout in before or after a flight. Luckily for travelers with flights from Denver to San Francisco, exercise is made easy, thanks to San Francisco International Airport’s yoga rooms. There are two yoga rooms in the airport, located in Terminals 2 and 3, and they are both open 24 hours a day.
  • Looking to take public transportation at San Francisco International Airport? BART (Bay Area Rapid Transport) offers quick and direct access from San Francisco International Airport to all across the city. Terminal 3 at San Francisco International Airport hosts the airport’s BART station and reaching the rest of the airport is as easy as hopping on the airport’s complimentary AirTrain.

Prefer to fly direct from Denver to San Francisco?

 
Find which airlines fly direct from Denver Intl Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to San Francisco

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

Direct returns

San Francisco to Denver Intl

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

More options for your flight from Denver to San Francisco

Complete your trip to San Francisco with a hotel stay or car hire