Domestic route
Cheap flights from San Francisco to Denver
San Francisco International Airport (SFO) to Denver International Airport (DEN). 965 miles, 2h 15m nonstop.
SFO to DEN at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 965 milesgreat-circle
- Typical flight time
- 2h 15mnonstop, gate to gate
- Nonstop airlines
- DLUAWNAS6 airlinesDelta, United, Southwest
- Nonstop flights per day
- 28all airlines combined
- Cheapest month
- February 2027over the next six months
- Best day to fly
- Tuesday20% less than Sunday
- Time difference
- 1h aheadDenver vs San Francisco
San Francisco to Denver
Round trips from $87
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Feb 2.
Cheapest month: February 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSan Francisco to Denver fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying San Francisco to Denver
6 airlines fly nonstop with 28 departures a day combined, plus 3 more with one stop.
- UAUnited AirlinesStar AllianceNonstop · 11 flights a day · first checked bag from $40
- ASAlaska AirlinesoneworldNonstop · 5 flights a day · first checked bag from $35
- F9Frontier AirlinesLow-costNonstop · 4 flights a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 4 flights a day · first checked bag from $35
- DLDelta Air LinesSkyTeamNonstop · 2 flights a day · first checked bag from $35
- SYSun Country AirlinesLow-costNonstop · 2 flights a day · first checked bag from $45
- AAAmerican AirlinesoneworldConnecting via PHX, LAX · first checked bag from $40
- B6JetBlueConnecting via LAX · first checked bag from $40
- NKSpirit AirlinesLow-costConnecting via LAS · first checked bag from $55
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AAB62 airlines
- Phoenix (PHX)AA1 airline
- Las Vegas (LAS)NK1 airline
Which airport should I use?
San Francisco has 3 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Tips for this route
- Delta, United, Southwest and Alaska all fly SFO to DEN nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- February 2027 is the cheapest month to fly over the next six months, with round trips from $87; September 2026 is the most expensive at $115 and up, a difference of $28 per traveler.
- Departing on a Tuesday averages 20% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
Destination guide
Denver: Mile-high base camp for the Rockies
Denver International is the third-busiest airport in the country and a hub for United, Southwest and Frontier, which keeps fares low from every direction. The city itself is a lively base for the Rockies, with ski resorts 90 minutes away.
Best time to visit: June–September for hiking and Red Rocks concerts; December–March for skiing. Spring can swing from snow to 70°F in a week; September is dependably dry and golden.
Flying the other way? Denver to San FranciscoFares, airlines and tips for DEN to SFO.Ready to compare live fares?
See every airline on SFO–DEN side by side with bags and seat rules spelled out.
Search San Francisco to DenverSan Francisco to Denver: common questions
How long is the flight from San Francisco to Denver?
A nonstop flight from San Francisco (SFO) to Denver (DEN) takes about 2h 15m gate to gate, covering 965 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from SFO to DEN?
Delta Air Lines, United Airlines, Southwest Airlines, Alaska Airlines, Frontier Airlines and Sun Country Airlines operate nonstop flights from San Francisco (SFO) to Denver (DEN), with 28 nonstop departures a day between them. One-stop options connect through LAX, PHX and LAS.
What is the cheapest month to fly from San Francisco to Denver?
Over the next six months, February 2027 has the lowest round-trip fares from San Francisco (SFO) to Denver (DEN), starting at $87 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Francisco to Denver flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between San Francisco and Denver?
Denver is 1 hour ahead of San Francisco. SFO is on America/Los Angeles time and DEN on America/Denver time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.
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