Flights San Francisco → San Antonio
As of November 2026, economy flights from San Francisco to San Antonio have a typical range USD 236–1224, median USD 474. Full range across all 188 offers: USD 166–4613. We analyzed 188 offers from 8 airlines in a single price check.
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 → San Antonio
Based on 188 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Francisco → San Antonio
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | — | — | — |
| American Airlines | Included | USD 35 | — |
| Alaska Airlines | Included | — | — |
| Alaska | — | USD 45 | — |
| Southwest Airlines | Included | Included | — |
| United | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Qatar Airways | — | Included | — |
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 San Antonio cost?
Based on 188 offers · November 2026
San Francisco to San Antonio flights ranged from USD 166 to USD 4613 across 188 offers analyzed in November 2026. The chart below shows how prices distributed across all 188 offers.
These 188 offers (November 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 USD 349 and USD 614
What hidden fees do San Francisco to San Antonio flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Francisco to San Antonio routes. The breakdown below is based on 188 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 2% |
| AA | 45 | 13% |
| AS | 29 | 2% |
| Alaska | 45 | 15% |
| WN | 0 | 0% |
| UA | 47 | 5% |
| DL | 32 | 3% |
| QR | 20 | 1% |
United Airlines: base ~USD 567 + fees USD 47 = ~USD 614 total. Frontier Airlines: base ~USD 626 + fees USD 10 = ~USD 636 total.
United Airlines's USD 47 ancillary fees narrow the gap with Frontier Airlines's lower-fee model — the USD 59 base difference shrinks to USD 22 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 San Antonio?
8 airlines flew San Francisco to San Antonio in this dataset. 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.
Even on the cheapest airline (Alaska), fares ranged USD 296–822 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Alaska | 6 | 296–822 | 301 | 45 (15%) |
 Southwest Airlines | 47 | 349–479 | 355 | 0 (0%) |
 American Airlines | 44 | 235–411 | 411 | 45 (11%) |
 United Airlines | 25 | 613–1750 | 614 | 47 (8%) |
 Frontier Airlines | 7 | 166–912 | 636 | 10 (2%) |
 Alaska Airlines | 17 | 296–4608 | 671 | 29 (4%) |
 Delta Air Lines | 40 | 613–1700 | 747 | 32 (4%) |
 Qatar Airways | 2 | — | 2390 | 20 (1%) |
Where do the best San Francisco → San Antonio 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 San Antonio flights
- Full-service carriers on San Francisco–San Antonio cost 1.7x more than budget airlines (USD 856 vs USD 496 median; overall median USD 474).
- UA charges 4.7x more in ancillary fees than F9 — USD 47 vs USD 10 avg per booking.
- The same route priced USD 469 apart depending on where it was booked — the lowest median was USD 295. 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 San Antonio cost?
- Based on 188 offers analyzed, San Francisco to San Antonio flights range from USD 166 to USD 4613, with a median price of USD 474. Search for your specific dates →
- What hidden fees should I expect on San Francisco to San Antonio flights?
- On average, ancillary fees (bags, seat selection) add USD 28 to the base fare on San Francisco to San Antonio flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Francisco to San Antonio including all fees?
- Alaska has the lowest median fare on San Francisco to San Antonio at USD 301 (median across 6 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Francisco–San Antonio 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 USD 295. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Francisco to San Antonio routes?
- San Francisco to San Antonio has 8 airlines competing, creating a price range from USD 166 to USD 4613 across 188 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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