Domestic route
Cheap flights from Austin to San Francisco
Austin-Bergstrom International Airport (AUS) to San Francisco International Airport (SFO). 1,502 miles, 3h 40m nonstop.
AUS to SFO at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,502 milesgreat-circle
- Typical flight time
- 3h 40mnonstop, gate to gate
- Nonstop airlines
- UAWNAS3 airlinesUnited, Southwest, Alaska
- Nonstop flights per day
- 15all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday18% less than Sunday
- Time difference
- 2h behindSan Francisco vs Austin
Austin to San Francisco
Round trips from $139
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 6.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppAustin 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 Austin to San Francisco
3 airlines fly nonstop with 15 departures a day combined, plus 5 more with one stop.
- ASAlaska AirlinesoneworldNonstop · 7 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 5 flights a day · first checked bag from $40
- WNSouthwest AirlinesLow-costNonstop · 3 flights a day · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, PHX, LAX · first checked bag from $40
- DLDelta Air LinesSkyTeamConnecting via SLC, LAX · first checked bag from $35
- F9Frontier AirlinesLow-costConnecting via DEN, LAS, PHX · first checked bag from $55
- B6JetBlueConnecting via LAX · first checked bag from $40
- NKSpirit AirlinesLow-costConnecting via LAS, DFW, IAH · first checked bag from $55
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Los Angeles (LAX)AADLB63 airlines
- Dallas (DFW)AANK2 airlines
- Phoenix (PHX)AAF92 airlines
- Las Vegas (LAS)NKF92 airlines
- Salt Lake City (SLC)DL1 airline
Which airport should I use?
AustinSan 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 and Alaska all fly AUS 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.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $139; September 2026 is the most expensive at $184 and up, a difference of $45 per traveler.
- Departing on a Tuesday averages 18% 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.
- San Francisco is 2 hours behind Austin. A morning departure lands in San Francisco with most of the day left; an evening flight arrives close to local dinner time.
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 AustinFares, airlines and tips for SFO to AUS.Ready to compare live fares?
See every airline on AUS–SFO side by side with bags and seat rules spelled out.
Search Austin to San FranciscoAustin to San Francisco: common questions
How long is the flight from Austin to San Francisco?
A nonstop flight from Austin (AUS) to San Francisco (SFO) takes about 3h 40m gate to gate, covering 1,502 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from AUS to SFO?
United Airlines, Southwest Airlines and Alaska Airlines operate nonstop flights from Austin (AUS) to San Francisco (SFO), with 15 nonstop departures a day between them. One-stop options connect through LAX, DFW and PHX.
What is the cheapest month to fly from Austin to San Francisco?
Over the next six months, January 2027 has the lowest round-trip fares from Austin (AUS) to San Francisco (SFO), starting at $139 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Austin 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 Austin and San Francisco?
San Francisco is 2 hours behind Austin. AUS is on America/Chicago 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.
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