Flights San Antonio → Baltimore
As of October 2026, economy flights from San Antonio to Baltimore have a typical range USD 344–1027, median USD 389. Full range across all 91 offers: USD 344–1711. We found 49% of 91 offers from budget carriers (around USD 350) and 51% from full-service carriers (around USD 389).
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 Antonio → Baltimore
Based on 91 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Antonio → Baltimore
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| United | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Southwest | — | USD 45 | — |
| Delta | — | USD 45 | — |
| Alaska Airlines | Included | USD 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 Antonio to Baltimore cost?
Based on 91 offers · October 2026
San Antonio to Baltimore flights ranged from USD 344 to USD 1711 across 91 offers analyzed in October 2026. Two fare clusters detected: budget fares around 413 and premium fares around 959 The chart below shows how prices distributed across all 91 offers.
These 91 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 344 and USD 519
What hidden fees do San Antonio to Baltimore flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Antonio to Baltimore routes. The breakdown below is based on 91 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AA | 48 | 12% |
| DL | 40 | 6% |
| UA | 45 | 9% |
| WN | 0 | 0% |
| Southwest | 45 | 13% |
| Delta | 45 | 13% |
| AS | 45 | 7% |
American Airlines: base ~USD 296 + fees USD 48 = ~USD 344 total. Delta Air Lines: base ~USD 479 + fees USD 40 = ~USD 519 total.
American Airlines's USD 48 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 183 base difference shrinks to USD 175 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 Antonio to Baltimore?
7 airlines flew San Antonio to Baltimore 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 (American Airlines), fares ranged USD 344–560 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) |
|---|---|---|---|---|
 American Airlines | 23 | 344–560 | 344 | 48 (14%) |
 Southwest | 7 | — | 345 | 45 (13%) |
 Delta | 1 | — | 345 | 45 (13%) |
 United Airlines | 14 | 344–789 | 350 | 45 (13%) |
 Southwest Airlines | 22 | 345–563 | 389 | 0 (0%) |
 Delta Air Lines | 23 | 344–1027 | 519 | 40 (8%) |
 Alaska Airlines | 1 | — | 679 | 45 (7%) |
Where do the best San Antonio → Baltimore 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: San Antonio to Baltimore flights
- Full-service carriers on San Antonio–Baltimore cost 1.2x more than budget airlines (USD 447 vs USD 367 median; overall median USD 389).
- AA charges 1.2x more in ancillary fees than DL — USD 48 vs USD 40 avg per booking.
- The same route priced USD 125 apart depending on where it was booked — the lowest median was USD 345. 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 Antonio to Baltimore cost?
- Based on 91 offers analyzed, San Antonio to Baltimore flights range from USD 344 to USD 1711, with a median price of USD 389. Search for your specific dates →
- What hidden fees should I expect on San Antonio to Baltimore flights?
- On average, ancillary fees (bags, seat selection) add USD 34 to the base fare on San Antonio to Baltimore flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Antonio to Baltimore including all fees?
- American Airlines has the lowest median fare on San Antonio to Baltimore at USD 344 (median across 23 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Antonio–Baltimore 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 345. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Antonio to Baltimore routes?
- San Antonio to Baltimore has 7 airlines competing, creating a price range from USD 344 to USD 1711 across 91 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
7 airlines, two price clusters — find which fits your budget
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