Flights Atlanta → San Antonio
As of October 2026, economy flights from Atlanta to San Antonio have a typical range USD 506–735, median USD 604. Full range across all 123 offers: USD 221–1601. We analyzed 123 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: Atlanta → San Antonio
Based on 123 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Atlanta → San Antonio
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| United Airlines | — | USD 40 | — |
| American | — | USD 55 | — |
| United | — | USD 50 | — |
| American Airlines | Included | USD 50 | — |
| Southwest Airlines | Included | Included | — |
| Delta | Included | USD 45 | — |
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 Atlanta to San Antonio cost?
Based on 123 offers · October 2026
Atlanta to San Antonio flights ranged from USD 221 to USD 1601 across 123 offers analyzed in October 2026. The chart below shows how prices distributed across all 123 offers.
These 123 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 USD 598 and USD 669
What hidden fees do Atlanta to San Antonio flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Atlanta to San Antonio routes. The breakdown below is based on 123 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 5% |
| UA | 36 | 4% |
| American | 55 | 11% |
| United | 50 | 10% |
| AA | 60 | 9% |
| WN | 21 | 3% |
| DL | 33 | 5% |
American: base ~USD 451 + fees USD 55 = ~USD 506 total. Southwest Airlines: base ~USD 583 + fees USD 21 = ~USD 604 total.
American's USD 55 ancillary fees narrow the gap with Southwest Airlines's lower-fee model — the USD 132 base difference shrinks to USD 98 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 Atlanta to San Antonio?
8 airlines flew Atlanta 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.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Frontier Airlines | 4 | — | 221 | 10 (5%) |
 American | 8 | 506–512 | 506 | 55 (11%) |
 United | 3 | — | 506 | 50 (10%) |
 United Airlines | 14 | 501–1573 | 599 | 36 (6%) |
 Southwest Airlines | 41 | 598–669 | 604 | 21 (3%) |
 Southwest | 4 | 604–608 | 604 | n/a |
 American Airlines | 35 | 584–679 | 648 | 60 (9%) |
 Delta Air Lines | 14 | 629–749 | 689 | 33 (5%) |
Where do the best Atlanta → 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 travel agency 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: Atlanta to San Antonio flights
- Full-service carriers on Atlanta–San Antonio cost 1.2x more than budget airlines (USD 590 vs USD 476 median; overall median USD 604).
- AA charges 6.0x more in ancillary fees than F9 — USD 60 vs USD 10 avg per booking.
- The same route priced USD 163 apart depending on where it was booked — the lowest median was USD 506. 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 Atlanta to San Antonio cost?
- Based on 123 offers analyzed, Atlanta to San Antonio flights range from USD 221 to USD 1601, with a median price of USD 604. Search for your specific dates →
- What hidden fees should I expect on Atlanta to San Antonio flights?
- On average, ancillary fees (bags, seat selection) add USD 38 to the base fare on Atlanta to San Antonio flights. See itemized fees for your itinerary →
- Which airline is cheapest on Atlanta to San Antonio including all fees?
- Frontier Airlines has the lowest median fare on Atlanta to San Antonio at USD 221 (median across 4 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Atlanta–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 506. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Atlanta to San Antonio routes?
- Atlanta to San Antonio has 8 airlines competing, creating a price range from USD 221 to USD 1601 across 123 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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