Flights San Francisco → Austin
As of October 2026, economy flights from San Francisco to Austin have a typical range GBP 215–433, median GBP 237. Full range across all 230 offers: GBP 173–628. We found 82% of 230 offers from budget carriers (around GBP 237) and 18% from full-service carriers (around GBP 288).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: San Francisco → Austin
Based on 230 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Francisco → Austin
Add-on pricing from the cheapest available offer per airline · October 2026 · GBP
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Southwest | — | GBP 68 | — |
| Southwest | — | Included | — |
| Frontier Airlines | — | — | — |
| United | Included | GBP 35 | — |
| Delta | — | GBP 68 | — |
| American Airlines | Included | GBP 35 | — |
| Alaska Airlines | Included | GBP 35 | — |
| Delta | Included | GBP 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from San Francisco to Austin cost?
Based on 230 offers · October 2026
San Francisco to Austin flights ranged from GBP 173 to GBP 628 across 230 offers analyzed in October 2026. Two fare clusters detected: budget fares around 332 and premium fares around 423 The chart below shows how prices distributed across all 230 offers.
These 230 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between GBP 221 and GBP 343
What hidden fees do San Francisco to Austin flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Francisco to Austin routes. The breakdown below is based on 230 offers analyzed in October 2026.
| Carrier | Avg fee (GBP) | % of base fare |
|---|---|---|
| Southwest | 68 | 28% |
| WN | 10 | 4% |
| F9 | 10 | 4% |
| UA | 45 | 10% |
| Delta | 68 | 23% |
| AA | 45 | 13% |
| AS | 39 | 10% |
| DL | 48 | 10% |
Southwest: base ~GBP 158 + fees GBP 68 = ~GBP 226 total. Frontier Airlines: base ~GBP 227 + fees GBP 10 = ~GBP 237 total.
Southwest's GBP 68 ancillary fees narrow the gap with Frontier Airlines's lower-fee model — the GBP 69 base difference shrinks to GBP 11 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from San Francisco to Austin?
9 airlines flew San Francisco to Austin in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (GBP) | Median (GBP) | Fees (GBP) |
|---|---|---|---|---|
 Frontier | 4 | — | 220 | n/a |
 Southwest | 9 | 173–295 | 226 | 68 (30%) |
 Southwest Airlines | 173 | 215–411 | 230 | 10 (4%) |
 Frontier Airlines | 2 | 223–251 | 237 | 10 (4%) |
 Delta | 2 | 270–306 | 288 | 68 (23%) |
 American Airlines | 9 | 277–432 | 339 | 45 (13%) |
 Alaska Airlines | 6 | 346–432 | 401 | 39 (10%) |
 United Airlines | 13 | 280–553 | 500 | 45 (9%) |
 Delta Air Lines | 12 | 343–628 | 502 | 48 (9%) |
Where do the best San Francisco → Austin prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: San Francisco to Austin flights
- Full-service carriers on San Francisco–Austin cost 1.8x more than budget airlines (GBP 406 vs GBP 228 median; overall median GBP 237).
- Southwest charges 6.8x more in ancillary fees than F9 — GBP 68 vs GBP 10 avg per booking.
- The same route priced GBP 208 apart depending on where it was booked — the lowest median was GBP 215. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from San Francisco to Austin cost?
- Based on 230 offers analyzed, San Francisco to Austin flights range from GBP 173 to GBP 628, with a median price of GBP 237. Search for your specific dates →
- What hidden fees should I expect on San Francisco to Austin flights?
- On average, ancillary fees (bags, seat selection) add GBP 19 to the base fare on San Francisco to Austin flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Francisco to Austin including all fees?
- Frontier has the lowest median fare on San Francisco to Austin at GBP 220 (median across 4 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Francisco–Austin flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was GBP 215. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Francisco to Austin routes?
- San Francisco to Austin has 9 airlines competing, creating a price range from GBP 173 to GBP 628 across 230 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
9 airlines, two price clusters — find which fits your budget
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