Flights Mexico City → San Antonio
As of November 2026, economy flights from Mexico City to San Antonio have a typical range USD 261–1751, median USD 484. Full range across all 87 offers: USD 202–4222. We found 53% of 87 offers from budget carriers (around USD 409) and 47% from full-service carriers (around USD 495).
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: Mexico City → San Antonio
Based on 87 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Mexico City → San Antonio
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Volaris | USD 250 | USD 500 | — |
| Viva | USD 280 | USD 400 | — |
| Aeromexico | — | USD 53 | — |
| Delta | — | USD 45 | — |
| United | — | USD 1 | — |
| United | Included | USD 35 | — |
| Frontier | — | — | — |
| American Airlines | Included | USD 35 | — |
| WestJet | — | USD 30 | — |
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 Mexico City to San Antonio cost?
Based on 87 offers · November 2026
Mexico City to San Antonio flights ranged from USD 202 to USD 4222 across 87 offers analyzed in November 2026. Two fare clusters detected: budget fares around 403 and premium fares around 2011 The chart below shows how prices distributed across all 87 offers.
These 87 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 348 and USD 634
What hidden fees do Mexico City to San Antonio flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Mexico City to San Antonio routes. The breakdown below is based on 87 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| Y4 | 692 | 189% |
| VB | 830 | 290% |
| AM | 53 | 19% |
| DL | 33 | 3% |
| United | 1 | 0% |
| UA | 45 | 9% |
| F9 | 10 | 2% |
| AA | 45 | 5% |
| WS | 42 | 1% |
VivaAerobus: base ~USD -569 + fees USD 830 = ~USD 261 total. United: base ~USD 408 + fees USD 1 = ~USD 409 total.
VivaAerobus's USD 830 ancillary fees narrow the gap with United's lower-fee model — the USD 977 base difference shrinks to USD 148 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 Mexico City to San Antonio?
9 airlines flew Mexico City to San Antonio 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.
Even on the cheapest airline (VivaAerobus), fares ranged USD 202–372 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) |
|---|---|---|---|---|
 VivaAerobus | 16 | 202–372 | 261 | 830 (317%) |
 AM | 2 | 288–372 | 330 | 53 (16%) |
 Volaris | 6 | 257–447 | 393 | 692 (176%) |
 United | 22 | 337–505 | 409 | 1 (0%) |
 United Airlines | 7 | 473–575 | 495 | 45 (9%) |
 Frontier Airlines | 3 | 575–748 | 604 | 10 (2%) |
 American Airlines | 23 | 607–1857 | 703 | 45 (6%) |
 Delta Air Lines | 2 | 416–1504 | 960 | 33 (3%) |
 WestJet | 6 | 2036–4222 | 2267 | 42 (2%) |
Where do the best Mexico City → 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: Mexico City to San Antonio flights
- Full-service carriers on Mexico City–San Antonio cost 0.4x more than budget airlines (USD 507 vs USD 1435 median; overall median USD 484).
- VB charges 572.4x more in ancillary fees than United — USD 830 vs USD 1 avg per booking.
- The same route priced USD 2052 apart depending on where it was booked — the lowest median was USD 372. 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 Mexico City to San Antonio cost?
- Based on 87 offers analyzed, Mexico City to San Antonio flights range from USD 202 to USD 4222, with a median price of USD 484. Search for your specific dates →
- What hidden fees should I expect on Mexico City to San Antonio flights?
- On average, ancillary fees (bags, seat selection) add USD 229 to the base fare on Mexico City to San Antonio flights. See itemized fees for your itinerary →
- Which airline is cheapest on Mexico City to San Antonio including all fees?
- VivaAerobus has the lowest median fare on Mexico City to San Antonio at USD 261 (median across 16 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Mexico City–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 372. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Mexico City to San Antonio routes?
- Mexico City to San Antonio has 9 airlines competing, creating a price range from USD 202 to USD 4222 across 87 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
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers