Domestic route
Cheap flights from San Diego to San Francisco
San Diego International Airport (SAN) to San Francisco International Airport (SFO). 447 miles, 1h 30m nonstop.
SAN to SFO at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 447 milesgreat-circle
- Typical flight time
- 1h 30mnonstop, gate to gate
- Nonstop airlines
- UAWNASNK5 airlinesUnited, Southwest, Alaska
- Nonstop flights per day
- 25all airlines combined
- Cheapest month
- February 2027over the next six months
- Best day to fly
- Tuesday20% less than Sunday
- Time difference
- Same time zone
San Diego to San Francisco
Round trips from $47
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Feb 9.
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 Diego to San Francisco 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 Diego to San Francisco
5 airlines fly nonstop with 25 departures a day combined, plus 4 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 10 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 7 flights a day · first checked bag from $40
- WNSouthwest AirlinesLow-costNonstop · 4 flights a day · first checked bag from $35
- MXBreeze AirwaysLow-costNonstop · 2 flights a day · first checked bag from $45
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- AAAmerican AirlinesoneworldConnecting via LAX · first checked bag from $40
- DLDelta Air LinesSkyTeamConnecting via LAX · first checked bag from $35
- F9Frontier AirlinesLow-costConnecting via LAS · first checked bag from $55
- B6JetBlueConnecting via LAX · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AADLB63 airlines
- Las Vegas (LAS)F91 airline
Which airport should I use?
San DiegoSan 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
- United, Southwest, Alaska and Spirit all fly SAN to SFO 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.
- 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.
- At 447 miles this is a short hop of 1h 30m, so an early-morning departure, which is usually the cheapest and most punctual of the day, costs you little sleep.
Destination guide
San Francisco: Fog, hills and the Golden Gate
San Francisco packs cable cars, the Golden Gate Bridge, Alcatraz and world-class food into 49 square miles. SFO is the main gateway; Oakland and San Jose are handy alternatives with lower fares on many routes.
Best time to visit: September and October are the warmest, clearest months. Spring (April–May) is green and mild. Summer fog ('Karl') keeps the coast cool; winter is rainy but inexpensive.
Flying the other way? San Francisco to San DiegoFares, airlines and tips for SFO to SAN.Ready to compare live fares?
See every airline on SAN–SFO side by side with bags and seat rules spelled out.
Search San Diego to San FranciscoSan Diego to San Francisco: common questions
How long is the flight from San Diego to San Francisco?
A nonstop flight from San Diego (SAN) to San Francisco (SFO) takes about 1h 30m gate to gate, covering 447 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from SAN to SFO?
United Airlines, Southwest Airlines, Alaska Airlines, Spirit Airlines and Breeze Airways operate nonstop flights from San Diego (SAN) to San Francisco (SFO), with 25 nonstop departures a day between them. One-stop options connect through LAX and LAS.
What is the cheapest month to fly from San Diego to San Francisco?
Over the next six months, February 2027 has the lowest round-trip fares from San Diego (SAN) to San Francisco (SFO), starting at $47 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Diego to San Francisco 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 Diego and San Francisco?
San Francisco is in the same time zone as San Diego, so there is no clock change. SAN is on America/Los Angeles time and SFO on America/Los Angeles 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.
More flights from San Diego
All routes- San Diego to New YorkSAN → JFKfrom $194
- San Diego to ChicagoSAN → ORDfrom $127
- San Diego to DallasSAN → DFWfrom $115
- San Diego to DenverSAN → DENfrom $80
- San Diego to Los AngelesSAN → LAXfrom $47
- San Diego to SeattleSAN → SEAfrom $105
- San Diego to Las VegasSAN → LASfrom $63
- San Diego to San JoseSAN → SJCfrom $59
More flights to San Francisco
All routes- New York to San FranciscoJFK → SFOfrom $239
- Chicago to San FranciscoORD → SFOfrom $159
- Los Angeles to San FranciscoLAX → SFOfrom $63
- Seattle to San FranciscoSEA → SFOfrom $80
- Honolulu to San FranciscoHNL → SFOfrom $243
- Vancouver to San FranciscoYVR → SFOfrom $107
- London to San FranciscoLHR → SFOfrom $513
- Paris to San FranciscoCDG → SFOfrom $508