Austin to San Francisco flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Austin to San Francisco is €54 with Allegiant Air (checked on 6 Nov 2026).
Your next trip, last seen at €54
Lowest observedAllegiant Air · 1 stop · One wayWhen to fly
Explore datesMore dates worth a look
Last seen for 1 traveller on 6 Nov 2026. Check today's price.
Find the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- 4 Jan€90
- 5 Jan€83
- 6 Jan€89
- 7 Jan€83
- 8 Jan€91
- 9 Jan€100
- 10 Jan€106
- 11 Jan€76
- 12 Jan€83
- 13 Jan€91
- 14 Jan€98
- 15 Jan€92
- 16 Jan€87
- 18 Jan€76
- 19 Jan€77
- 20 Jan€76
- 21 Jan€101
- 22 Jan€82
- 23 Jan€77
- 25 Jan€91
- 26 Jan€54
- 27 Jan€77
- 28 Jan€77
- 29 Jan€85
- 30 Jan€77
- 31 Jan€104
- Lowest observed
- €54, departing 26 Jan 2027 (Last checked: 6 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 70Check live prices for this route
- Airlines seen
- Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines
- Non-stop
- Yes
About this route
Explore the fares we observed from Austin to San Francisco. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,414 km
- Airlines seen
- Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines
Route-level information; individual journeys vary.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Austin Bergstrom International Airport (AUS) → Austin, city gazetteer reference point (30.2672, -97.7431): ≈ 11 km.
- San Francisco International Airport (SFO) → San Francisco, city gazetteer reference point (37.7749, -122.4194): ≈ 18 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Austin to San Francisco: January 2027, from €54 (checked 6 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| December 2026 | €77 | 20 |
| January 2027 | €54 | 26 |
| February 2027 | €74 | 20 |
| March 2027 | €85 | 3 |
Lowest fare by day of the week
Cheapest day of the week from Austin to San Francisco: Tuesday, from €54 (checked 6 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €74 | 10 |
| Tuesday | €54 | 12 |
| Wednesday | €76 | 13 |
| Thursday | €77 | 13 |
| Friday | €82 | 9 |
| Saturday | €77 | 9 |
| Sunday | €104 | 4 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Austin to San Francisco by days until departure (61 days or more): €54 (checked 6 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 8 to 30 days | €77 | 10 |
| 31 to 60 days | €83 | 16 |
| 61 days or more | €54 | 44 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Austin to San Francisco: Frontier Airlines, from €74 (checked 6 Nov 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €74Feb 8, 2027 | 54 |
| Alaska Airlines | €87Jan 16, 2027 | 15 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Austin to San Francisco?
The lowest fare Routavio has observed is €54, found on 6 Nov 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Austin to San Francisco?
Cheapest month from Austin to San Francisco: January 2027, from €54 (checked 6 Nov 2026).
Are there direct flights from Austin to San Francisco?
Yes. Published schedules report non-stop flights on this route with JetBlue.
Which airlines fly from Austin to San Francisco?
Routavio has seen these carriers on the route: Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines.
How long does the flight from Austin to San Francisco take?
Across the 70 fares Routavio observed, the average journey time is 11h 55m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which day of the week is cheapest from Austin to San Francisco?
Cheapest day of the week from Austin to San Francisco: Tuesday, from €54 (checked 6 Nov 2026).
Which airline has the lowest fare from Austin to San Francisco?
Cheapest airline from Austin to San Francisco: Frontier Airlines, from €74 (checked 6 Nov 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.