Flights Las Vegas → San Antonio
As of October 2026, economy flights from Las Vegas to San Antonio have a typical range USD 231–1135, median USD 405. Full range across all 173 offers: USD 86–3560. We analyzed 173 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: Las Vegas → San Antonio
Based on 173 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Las Vegas → San Antonio
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| Southwest Airlines | Included | Included | — |
| American Airlines | Included | USD 35 | — |
| Southwest | — | USD 45 | — |
| United | Included | USD 35 | — |
| United | — | USD 50 | — |
| Delta | Included | USD 35 | — |
| Alaska Airlines | 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 Las Vegas to San Antonio cost?
Based on 173 offers · October 2026
Las Vegas to San Antonio flights ranged from USD 86 to USD 3560 across 173 offers analyzed in October 2026. The chart below shows how prices distributed across all 173 offers.
These 173 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 294 and USD 550
What hidden fees do Las Vegas to San Antonio flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Las Vegas to San Antonio routes. The breakdown below is based on 173 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 12% |
| WN | 0 | 0% |
| AA | 45 | 11% |
| Southwest | 44 | 20% |
| UA | 47 | 7% |
| United | 50 | 22% |
| DL | 30 | 2% |
| AS | 10 | 2% |
United: base ~USD 177 + fees USD 50 = ~USD 227 total. Alaska Airlines: base ~USD 470 + fees USD 10 = ~USD 480 total.
United's USD 50 ancillary fees narrow the gap with Alaska Airlines's lower-fee model — the USD 293 base difference shrinks to USD 253 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 Las Vegas to San Antonio?
8 airlines flew Las Vegas 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 | 1 | — | 86 | 10 (12%) |
 United | 5 | — | 227 | 50 (22%) |
 Southwest | 8 | 165–254 | 232 | 44 (19%) |
 Southwest Airlines | 50 | 231–456 | 357 | 0 (0%) |
 United Airlines | 49 | 257–1135 | 405 | 47 (11%) |
 American Airlines | 32 | 241–593 | 429 | 45 (10%) |
 Alaska Airlines | 3 | 430–498 | 480 | 10 (2%) |
 Delta Air Lines | 25 | 409–3048 | 816 | 30 (4%) |
Where do the best Las Vegas → 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: Las Vegas to San Antonio flights
- Full-service carriers on Las Vegas–San Antonio cost 2.1x more than budget airlines (USD 471 vs USD 225 median; overall median USD 405).
- United charges 5.0x more in ancillary fees than AS — USD 50 vs USD 10 avg per booking.
- The same route priced USD 278 apart depending on where it was booked — the lowest median was USD 227. 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 Las Vegas to San Antonio cost?
- Based on 173 offers analyzed, Las Vegas to San Antonio flights range from USD 86 to USD 3560, with a median price of USD 405. Search for your specific dates →
- What hidden fees should I expect on Las Vegas to San Antonio flights?
- On average, ancillary fees (bags, seat selection) add USD 30 to the base fare on Las Vegas to San Antonio flights. See itemized fees for your itinerary →
- Which airline is cheapest on Las Vegas to San Antonio including all fees?
- Frontier Airlines has the lowest median fare on Las Vegas to San Antonio at USD 86 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Las Vegas–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 227. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Las Vegas to San Antonio routes?
- Las Vegas to San Antonio has 8 airlines competing, creating a price range from USD 86 to USD 3560 across 173 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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