Cheap flights from San Diego to Austin
Cheapest current fares: $104 in September 2026, 1,871 km direct flight in ~2h 12m.
Cheapest month-by-month fares
Lowest available fare per calendar month from San Diego (SAN) to Austin (AUS). Refreshed daily.
San Diego (SAN) → Austin (AUS)
- September 2026 $104
- November 2026 $113
- August 2026 $173
Frequently asked questions
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What is the cheapest month to fly from San Diego to Austin?
Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from San Diego (SAN) to Austin (AUS), with fares starting from $104.
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What is the lowest current fare from SAN to AUS?
The lowest currently-listed fare from San Diego (SAN) to Austin (AUS) is $104 on 2026-09-01.
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How long is the flight from San Diego to Austin?
Direct flights from SAN to AUS cover approximately 1,871 km (1,163 miles), with an estimated flight time of 2h 12m. Operating airlines: AS, WN.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.