$102 Find Cheap Flights from Baltimore to San Antonio - Compare and Save

JetBlue tops the list of airlines preferred by most of the travelers flying from Baltimore to San Antonio, accompanied by their children. The airline is quite popular for having the most of extra legroom and spacious seats in all its cabins. Additionally, parents accompanied by their kids enjoy priority boarding at BWI and priority deplaning at SAT.

Booking a flight from Baltimore to San Antonio put you in a better position to connect to several other cities served by San Antonio International Airport (SAT). Concan, Fredericksburg, Port Aransas, and Boerne are among the cities to which you can easily get to from SAT.

Among the airlines flying to San Antonio from Baltimore, American Airlines tops the list of those offering highly eco-friendly flights. Increased use of sustainable aviation fuel to reduce its overall carbon emission and recycling of aluminum cans are among the activities that make American Airlines more eco-friendly.

Yes. If you book economy with United Airlines or American Airlines for your flight to San Antonio from Baltimore, you will have a chance to upgrade to first class by paying a small upgrade fee.

Among airlines operating Baltimore to San Antonio flights:

• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Southwest operates flights between Baltimore and San Antonio.

Flights from Baltimore to San Antonio usually depart from Baltimore/Washington (BWI) and arrive at San Antonio (SAT).

Here are some options for this route, based on selected ticket types and cabin classes:

• Southwest: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Baltimore to San Antonio:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $271 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $513 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and United Airlines. Other aircraft seen on the route include Boeing 737-700 variants.

One-stop flights from Baltimore to San Antonio most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 41% of one-stop connections
• Charlotte Douglas (CLT) - 28% of one-stop connections
• Houston George Bush Intcntl (IAH) - 13% of one-stop connections
• Orlando (MCO) - 9% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 16% on the Baltimore to San Antonio route. Tuesday is the cheapest departure day at $440 round-trip on average, while Monday is the most expensive at $518, a difference of $78. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Baltimore to San Antonio flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

These are the earliest and latest flight times available from Baltimore to San Antonio:

• Earliest: departs at 7:00 am and lands at 10:44 am
• Latest: departs at 8:40 pm and lands at 12:24 am.

The flight takes about 3h 44m.

Last-minute fares on this route - booked within 2 weeks of departure - run 27% above the route average of $480. Book 19 weeks before departure for the lowest fares.

A nonstop flight from Baltimore to San Antonio takes 3h 44m, covering 1,405 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Baltimore to San Antonio are currently lower than usual. Average one-way flight prices are about $142, which is 45% below the typical average for this route.

Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 5h 24m, compared with 5h 27m via Charlotte Douglas (CLT) and 5h 33m via Detroit Metropolitan Wayne County (DTW).

San Antonio is 1 hour behind Baltimore (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:
• Europcar
• Fox
• Dollar
• Hertz
• Alamo

Round-trip flights from Baltimore to San Antonio range from $401 to $580, with an average of $480 over the past 12 months. Anything below $401 counts as a good deal.