SFO - DEN

$93 Find Cheap Flights from San Francisco to Denver - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$147
Typical prices: $217-$404
Frontier
Tue 1/23Sat 1/27
SFO - DEN • 1 stop
Cheapest non-stop
$148
Typical prices: $217-$407
Frontier
Thu 12/6Thu 12/13
SFO - DEN • Non-stop
Nonstop flights
You can fly direct with United Airlines, Southwest and Frontier. Average duration is 2h 39m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $242 (round-trip)
Shortest trip • 5h 43m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

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

Recent round-trip flight deals from San Francisco to Denver

Tue, Dec 22 - Thu, Dec 31
Frontier Logo
4:11 pm - 12:13 amSFO  San Francisco-DEN Denver Intl
7h 02m1 stop Las Vegas Harry Reid Intl
Frontier Logo
2:31 pm - 9:26 pmDEN  Denver Intl-SFO San Francisco
7h 55m1 stop Los Angeles
$147Frontier
Sat, Jan 23 - Wed, Jan 27
Frontier Logo
12:54 pm - 8:19 pmSFO  San Francisco-DEN Denver Intl
6h 25m1 stop Los Angeles
Frontier Logo
8:55 am - 5:22 pmDEN  Denver Intl-SFO San Francisco
9h 27m2 stops Phoenix Sky Harbor Intl San Diego
$147Frontier
Fri, Dec 4 - Mon, Dec 7
Multiple Airlines Logo
8:58 pm - 9:31 amSFO  San Francisco-DEN Denver Intl
11h 33m1 stop Los Angeles
Multiple Airlines Logo
9:12 am - 8:08 pmDEN  Denver Intl-SFO San Francisco
11h 56m1 stop Los Angeles
$147Multiple Airlines
Sat, Dec 12 - Sun, Dec 20
Multiple Airlines Logo
10:34 am - 2:12 pmSFO  San Francisco-DEN Denver Intl
2h 38mnonstop
Multiple Airlines Logo
10:29 pm - 8:52 amDEN  Denver Intl-SFO San Francisco
11h 23m1 stop San Diego
$149Multiple Airlines
Mon, Nov 23 - Fri, Nov 27
United Airlines Logo
5:00 am - 8:37 amSFO  San Francisco-DEN Denver Intl
2h 37mnonstop
United Airlines Logo
6:00 am - 7:48 amDEN  Denver Intl-SFO San Francisco
2h 48mnonstop
$177United Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
5:00 am - 8:37 amSFO  San Francisco-DEN Denver Intl
2h 37mnonstop
United Airlines Logo
1:27 pm - 3:15 pmDEN  Denver Intl-SFO San Francisco
2h 48mnonstop
$177United Airlines
Tue, Dec 8 - Thu, Dec 10
Southwest Logo
1:20 pm - 4:55 pmSFO  San Francisco-DEN Denver Intl
2h 35mnonstop
Southwest Logo
5:35 pm - 7:20 pmDEN  Denver Intl-SFO San Francisco
2h 45mnonstop
$177Southwest
Wed, Feb 3 - Mon, Feb 8
Southwest Logo
9:25 am - 12:55 pmSFO  San Francisco-DEN Denver Intl
2h 30mnonstop
Southwest Logo
6:10 pm - 8:05 pmDEN  Denver Intl-SFO San Francisco
2h 55mnonstop
$177Southwest
Fri, Dec 25 - Tue, Jan 5
Delta Logo
10:05 am - 5:24 pmSFO  San Francisco-DEN Denver Intl
6h 19m1 stop Los Angeles
Delta Logo
8:03 am - 12:21 pmDEN  Denver Intl-SFO San Francisco
5h 18m1 stop Salt Lake City
$197Delta
Fri, Dec 25 - Thu, Jan 7
Delta Logo
10:05 am - 5:24 pmSFO  San Francisco-DEN Denver Intl
6h 19m1 stop Los Angeles
Delta Logo
8:03 am - 12:21 pmDEN  Denver Intl-SFO San Francisco
5h 18m1 stop Salt Lake City
$197Delta
Booking Insights

Price, demand and travel trends for San Francisco to Denver 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 round-trip flight from San Francisco to Denver?

Round-trip flights from San Francisco to Denver typically range from $217 to $404. The lowest price found in the past 5 days was $147, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from San Francisco to Denver. It’s 12% cheaper than the average day, while Sunday is the most expensive, with prices 19% higher.

What’s the cheapest month to fly from San Francisco to Denver?

•February is the cheapest month to fly from San Francisco to Denver at $218 round-trip.
•June ($364) and July ($347) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 66% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Francisco to Denver the cheapest?

Flights from San Francisco to Denver are cheapest 8 weeks before departure. Booking in this window typically costs about 44% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from San Francisco to Denver

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest and SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for San Francisco to Denver flights

Low season

October

Cheapest flight

$93
Beat the crowds with an average 9% drop in travelers.
The most popular month to fly with an average 20% increase in travelers.
One-way flight from San Francisco to Denver

When to book flights from San Francisco to Denver

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

Your San Francisco to Denver 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 San Francisco to Denver?

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

    • Earliest: departs at 5:00 am and lands at 7:39 am
    • Latest: departs at 10:35 pm and lands at 1:14 am.

    The flight takes about 2h 39m.

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

    Four cabin classes are available on flights from San Francisco to Denver:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    A nonstop flight from San Francisco to Denver takes 2h 39m, covering 964 miles.

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

    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.

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

    Round-trip flights from San Francisco to Denver range from $217 to $404, with an average of $300 over the past 12 months. Anything below $217 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 38% above the $300 route average. Book 8 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $242 round-trip via Seattle/Tacoma Intl (SEA), compared to $302 for nonstop.

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

    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: 87% on time
    • Frontier: 79% on time
    • Southwest: 66% on time

    Overall, flights on this route are punctual 81% of the time on average.

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

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 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 San Francisco to Denver?

    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.

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

    Morning is the busiest departure period on San Francisco to Denver flights, with 54% of flights leaving in that window. Afternoon departures account for 27%, evening flights for 13%, and night flights for 6%.

  • Which airlines offer Wi-Fi on San Francisco to Denver flights?

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

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

    One-way fares from San Francisco to Denver are currently lower than usual. Average one-way flight prices are about $106, which is 47% below the typical average for this route.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates averaging $56 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Ace
    • NU Car
    • Hertz

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

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

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

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

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

    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, 19% of flights were delayed in the past 3 months, with delays averaging 2h 33m.

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

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

    • Las Vegas Harry Reid Intl (LAS) - 57% of one-stop connections
    • Salt Lake City (SLC) - 14% of one-stop connections
    • San Diego (SAN) - 12% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 9% of one-stop connections

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

    Yes. Flexible dates can save you up to 27% on flights from San Francisco to Denver. Wednesday is the cheapest departure day at $264 round-trip on average, while Sunday is the most expensive at $359, a difference of $95.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from San Francisco to Denver?

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

    • United Airlines
    • Southwest
    • Frontier

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

    Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 5h 43m, compared with 6h 04m via Phoenix Sky Harbor Intl (PHX) and 6h 45m via Las Vegas Harry Reid Intl (LAS).

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

    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.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

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

    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.

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

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

  • Where can I find the car rental center at Denver airport?

    Denver International Airport (DEN) has a car rental center. Courtesy shuttles to the center depart from Jeppesen Terminal on Level 5, Island 4.

  • Does the San Francisco International Airport have a USO?

    Yes, the USO lounge at San Francisco International Airport (SFO) is free for active-duty U.S. military members and their dependents. It is located in Terminal 1, landside on the Mezzanine Level. This pre-security lounge provides to-go snack packs, but respite services are not available.

  • Does the Denver International Airport provide facilities for nursing moms?

    Yes. DEN has Nursing Rooms with privacy, a sink, comfortable seating, a diaper changing table and outlets. One is in the middle of the Jeppesen Terminal on Level 5. Others are in the center of Gates A, B and C. Access is through the intercom next to each room.

  • Are there any pet relief stations at Denver International Airport?

    Yes. Indoor pet relief stations for pets and service animals are located at the center of the A, B and C Concourses. An outdoor pet relief area is outside the Jeppesen Terminal at Door 200.

  • How do I get from Denver Airport to downtown Denver?

    RTD bus service connects DEN with downtown Denver and departs approximately every 15 minutes during peak hours. The bus stop is at the DEN Transit Center on the south end of Jeppesen Terminal. An airport information booth is also located on Level 5 near arrivals for directions and general questions.

  • Does the Denver International Airport offer any massage services?

    Yes, Colorado Oasis spa offers massage in the center core of the A Gates, airside.

  • Where can I park at San Francisco International Airport?

    Long-Term Parking is available at SFO. Parking can be booked in advance to ensure a spot. To get to the terminals, board the AirTrain Blue line in the Long-Term Parking Garage on Level 5.

Your guide to booking San Francisco to Denver 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 Sunday. On this route, Wednesday flights average $264, about $95 less than Sunday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Francisco to Denver trip for February. Fares historically average $218 round-trip in that month - typically $146 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 87% of United Airlines flights from San Francisco to Denver arrived on time, slightly above the route average of 81%. When flights on this route arrive late, they're delayed by an average of 2h 33m, 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 Seattle/Tacoma Intl Airport (SEA) can be cheaper than flying direct. The cheapest layover option averages $242 round-trip on this route - about $59 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 Denver Intl Airport.

    • The Westin Denver International Airport
  • Browse InMotion at SFO if you want a way to pass the time or pick up tech accessories before your flight. It is open from 6:00 am to 11:00 pm, with locations near Gates A6 and G6 in the International Terminal and near Gate E4 in Terminal 3.
  • While you're passing through SFO, keep an eye out for the Wag Brigade in the terminals. These specially trained dogs wear "Pet Me" vests and give travelers a cheerful and sometimes wet, welcome or goodbye.
  • Before boarding, let your children burn off some energy at the Kids’ Spots in San Francisco International Airport's Terminal 3, in Area F and Area E. The colorful crawling apparatus, toys and interactive activities can keep little ones entertained until it's time to board.

Prefer to fly direct from San Francisco to Denver?

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

Direct departures

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

Direct returns

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

More options for your flight from San Francisco to Denver

Complete your trip to Denver with a hotel stay or car rental