What’s the fastest layover option from Baltimore to San Antonio?

Flights via Dallas (DAL) have the shortest average one-way travel time for 1-stop routes: 5h 55m.

What’s the top layover airport for flights from Baltimore to San Antonio?

Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Baltimore to San Antonio on Cheapflights.

Which airport typically offers the quickest layover for flights from Baltimore to San Antonio?

Flights via Dallas (DAL) offer the fastest connection on this route, with an average layover time of 1h 08m.

What’s the cheapest layover airport for flights from Baltimore to San Antonio?

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $171.

How popular is this Baltimore to San Antonio flight route?

Flights from Baltimore/Washington to San Antonio have been viewed 5 times in the past calendar month.

How long is the flight from Baltimore to San Antonio?

Airlines like Frontier and Spirit Airlines fly from Baltimore to San Antonio in about 6h 39m. The time it takes to get you to your destination can typically vary by up to 11h 53m. There are 1405 mi between Baltimore and San Antonio. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Baltimore to San Antonio round-trip?

Our cheapest airline available from Baltimore to San Antonio is Spirit Airlines. Our recent data shows that you can find tickets from as low as $94 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $120 and $158 round-trip. You may be able to fly from Baltimore to San Antonio for 76% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Baltimore to San Antonio one-way?

The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $58. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Baltimore to San Antonio for a low price.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the cheapest flights from Baltimore to San Antonio?

The cheapest flight price from Baltimore to San Antonio is $222. On average you can expect to pay $487. The most popular route, (Baltimore/Washington - San Antonio), can usually be booked for $166.

What are the most popular airlines that fly from Baltimore to San Antonio?

Before booking your flight from Baltimore to San Antonio check out the most popular airlines for this route: Southwest, Spirit Airlines or American Airlines.

Most accurate provider : When it comes to deals on Baltimore-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baltimore-San Antonio flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Baltimore-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Baltimore to San Antonio that include hotel bookings?

Yes. In addition to deals on Baltimore to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Baltimore to San Antonio?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to San Antonio.

Can I find deals for business class flights from Baltimore to San Antonio?

Yes. Cheapflights offers flight deals from Baltimore to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$64+ Flights from Baltimore to San Antonio

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Baltimore/Washington to San Antonio are usually found in August or September, booked 88 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Baltimore to San Antonio

Cheapest flights from Baltimore to San Antonio
Explore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Wed 12/318:17 amBWI - SAT

1 stop10h 59mFrontier

Mon 1/55:56 pmSAT - BWI

1 stop5h 44mFrontier

Deal found 12/26

$353

Sun 12/2810:00 pmBWI - SAT

1 stop21h 16mFrontier

Sun 1/117:14 pmSAT - BWI

1 stop15h 53mFrontier

Deal found 12/26

$387

Sat 12/275:19 pmBWI - SAT

1 stop6h 35mUnited Airlines

Sat 1/312:05 pmSAT - BWI

1 stop6h 16mUnited Airlines

Deal found 12/26

$395

Tue 12/3010:40 amBWI - SAT

2 stops13h 46mSpirit Airlines

Sat 1/1010:35 amSAT - BWI

1 stop7h 28mSpirit Airlines

Deal found 12/26

$412

Fri 12/2611:55 amBWI - SAT

1 stop6h 06mFrontier

Wed 12/315:56 pmSAT - BWI

1 stop5h 33mFrontier

Deal found 12/24

$413

Wed 12/318:17 amBWI - SAT

2 stops26h 06mMultiple Airlines

Mon 1/52:39 pmSAT - BWI

1 stop8h 07mMultiple Airlines

Deal found 12/25

$415

Tue 12/309:09 pmBWI - SAT

2 stops37h 14mMultiple Airlines

Mon 1/52:39 pmSAT - BWI

1 stop8h 07mMultiple Airlines

Deal found 12/25

$443

Tue 12/306:00 amBWI - SAT

1 stop6h 07mDelta

Wed 1/71:40 pmSAT - BWI

1 stop5h 48mDelta

Deal found 12/25

$451

Sun 12/2810:40 amBWI - SAT

2 stops13h 46mMultiple Airlines

Sun 1/117:14 pmSAT - BWI

1 stop15h 53mMultiple Airlines

Deal found 12/26

$452

Tue 12/306:15 amBWI - SAT

2 stops10h 38mUnited Airlines

Sat 1/109:50 amSAT - BWI

2 stops10h 31mUnited Airlines

Deal found 12/26

$461

Tue 12/3010:40 amBWI - SAT

2 stops13h 46mSpirit Airlines

Sun 1/116:30 amSAT - BWI

1 stop16h 17mSpirit Airlines

Deal found 12/26

$462

Best flights from Baltimore to San Antonio
Discover carefully curated flight deals from Baltimore to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Thu 2/55:37 pmBWI - SAT

1 stop16h 53mMultiple Airlines

Mon 2/910:35 amSAT - BWI

2 stops13h 01mMultiple Airlines

Deal found 12/27

$207

Fri 1/3011:24 amBWI - SAT

1 stop6h 39mFrontier

Mon 2/26:13 pmSAT - BWI

1 stop5h 23mFrontier

Deal found 12/25

$216

Sat 1/246:20 amBWI - SAT

2 stops18h 32mSpirit Airlines

Sat 1/316:30 amSAT - BWI

2 stops16h 06mSpirit Airlines

Deal found 12/25

$263

Sun 1/2510:05 amBWI - SAT

2 stops12h 16mUnited Airlines

Sat 1/315:25 amSAT - BWI

2 stops7h 46mUnited Airlines

Deal found 12/26

$349

Thu 1/159:17 amBWI - SAT

1 stop7h 53mAmerican Airlines

Tue 1/2010:32 amSAT - BWI

1 stop11h 38mAmerican Airlines

Deal found 12/27

$390

Tue 1/201:00 pmBWI - SAT

2 stops35h 52mMultiple Airlines

Fri 1/236:30 amSAT - BWI

1 stop7h 36mMultiple Airlines

Deal found 12/25

$217

Thu 1/1510:05 amBWI - SAT

2 stops24h 35mMultiple Airlines

Wed 1/216:30 amSAT - BWI

1 stop9h 40mMultiple Airlines

Deal found 12/26

$239

Sun 3/811:30 amBWI - SAT

1 stop13h 29mSpirit Airlines

Sat 3/1410:26 amSAT - BWI

2 stops12h 33mSpirit Airlines

Deal found 12/26

$339

Fri 1/2311:24 amBWI - SAT

1 stop6h 39mMultiple Airlines

Fri 1/238:24 pmSAT - BWI

2 stops26h 23mMultiple Airlines

Deal found 12/25

$309

Thu 2/124:45 pmBWI - SAT

1 stop8h 14mSpirit Airlines

Sun 2/1510:26 amSAT - BWI

1 stop12h 05mSpirit Airlines

Deal found 12/25

$378

Sat 4/112:45 pmBWI - SAT

2 stops23h 11mMultiple Airlines

Tue 4/141:44 pmSAT - BWI

1 stop9h 15mMultiple Airlines

Deal found 12/26

$320

Tue 1/69:34 amBWI - SAT

2 stops21h 03mSpirit Airlines

Sat 1/106:30 amSAT - BWI

3 stops25h 01mSpirit Airlines

Deal found 12/26

$382

Last-minute flights from Baltimore to San Antonio
Discover last-minute flight deals from Baltimore to San Antonio. Data last updated December 27, 2025 and is based on user searches.

Mon 1/126:00 amBWI - SAT

1 stop14h 03mMultiple Airlines

Sat 1/1710:35 amSAT - BWI

1 stop7h 28mMultiple Airlines

Deal found 12/25

$188

Fri 1/231:00 pmBWI - SAT

1 stop21h 40mMultiple Airlines

Thu 1/2910:35 amSAT - BWI

1 stop12h 24mMultiple Airlines

Deal found 12/25

$184

Fri 1/231:00 pmBWI - SAT

1 stop21h 40mSpirit Airlines

Sat 1/3110:35 amSAT - BWI

1 stop7h 28mSpirit Airlines

Deal found 12/25

$206

Sat 1/2411:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Sat 1/3110:35 amSAT - BWI

1 stop7h 28mSpirit Airlines

Deal found 12/27

$178

Sat 1/244:44 pmBWI - SAT

1 stop8h 08mMultiple Airlines

Sat 1/3110:35 amSAT - BWI

2 stops13h 01mMultiple Airlines

Deal found 12/27

$194

Sun 1/255:47 pmBWI - SAT

1 stop16h 53mMultiple Airlines

Sat 1/3110:35 amSAT - BWI

2 stops13h 01mMultiple Airlines

Deal found 12/26

$167

Sun 1/255:47 pmBWI - SAT

1 stop16h 53mMultiple Airlines

Sun 2/110:35 amSAT - BWI

1 stop20h 56mMultiple Airlines

Deal found 12/26

$192

Mon 1/2611:24 amBWI - SAT

1 stop6h 39mFrontier

Mon 1/266:13 pmSAT - BWI

1 stop5h 23mFrontier

Deal found 12/25

$182

One-way flights from Baltimore to San Antonio
Search for one-way flight options from Baltimore to San Antonio. Find affordable one-way fares based on user searches. Data last updated December 27, 2025.

Wed 2/258:25 pmBWI - SAT

1 stop17h 47mFrontier

Deal found 12/27

$64

Wed 2/188:25 pmBWI - SAT

1 stop17h 47mFrontier

Deal found 12/27

$68

Sat 2/217:07 pmBWI - SAT

1 stop25h 22mFrontier

Deal found 12/27

$70

Sun 1/255:47 pmBWI - SAT

1 stop16h 53mMultiple Airlines

Deal found 12/27

$76

Sun 2/229:06 amBWI - SAT

1 stop11h 23mFrontier

Deal found 12/27

$80

Tue 1/2011:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Deal found 12/27

$84

Sat 1/174:44 pmBWI - SAT

1 stop8h 08mSpirit Airlines

Deal found 12/25

$88

Tue 1/2711:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Deal found 12/27

$89

Mon 1/2611:24 amBWI - SAT

1 stop6h 39mFrontier

Deal found 12/27

$91

Mon 2/211:24 amBWI - SAT

1 stop6h 39mFrontier

Deal found 12/27

$92

Find flight deals from Baltimore to San Antonio

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$166 (Kiwi.com)
One-way from	$64 (Trip.com)
Popular in	December
Cheapest in	August
Average price	$519

Provider with most accurate pricing for Baltimore/Washington-San Antonio flight deals.

Search Deals

Provider most trusted by Cheapflights users for Baltimore/Washington-San Antonio flights.

Search Deals

From Baltimore/Washington to San Antonio

Search Deals

One-way flight from Baltimore/Washington to San Antonio

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($75 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 2/5

5:37 pm-9:30 am

1 stop16h 53m

San Antonio

Mon 2/9

10:35 am-12:36 am

2 stops13h 01m

$207

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/30

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Mon 2/2

6:13 pm-12:36 am

1 stop5h 23m

$216

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Tue 1/20

1:00 pm-11:52 pm

2 stops35h 52m

San Antonio

Fri 1/23

6:30 am-3:06 pm

1 stop7h 36m

$217

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 1/15

10:05 am-9:40 am

2 stops24h 35m

San Antonio

Wed 1/21

6:30 am-5:10 pm

1 stop9h 40m

$239

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 1/24

6:20 am-11:52 pm

2 stops18h 32m

San Antonio

Sat 1/31

6:30 am-11:36 pm

2 stops16h 06m

$263

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/23

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Fri 1/23

8:24 pm-11:47 pm

2 stops26h 23m

$309

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 4/11

2:45 pm-12:56 pm

2 stops23h 11m

San Antonio

Tue 4/14

1:44 pm-11:59 pm

1 stop9h 15m

$320

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sun 3/8

11:30 am-11:59 pm

1 stop13h 29m

San Antonio

Sat 3/14

10:26 am-11:59 pm

2 stops12h 33m

$339

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sun 1/25

10:05 am-9:21 pm

2 stops12h 16m

San Antonio

Sat 1/31

5:25 am-2:11 pm

2 stops7h 46m

$349

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 2/12

4:45 pm-11:59 pm

1 stop8h 14m

San Antonio

Sun 2/15

10:26 am-11:31 pm

1 stop12h 05m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 22 results

Compare providers for flights from Baltimore to San Antonio

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to San Antonio in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Baltimore-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baltimore-San Antonio flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Baltimore-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Baltimore with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to San Antonio

Prices

How far ahead should I book a flight from Baltimore to San Antonio?

To ensure you get the cheapest price possible for a flight from Baltimore to San Antonio, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Baltimore to San Antonio?

Currently, July is the cheapest month in which you can book a flight from Baltimore to San Antonio (average of $94). Flying from Baltimore to San Antonio in December is currently the most expensive (average of $184). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SAT?

It’s typically best to fly out from Baltimore to San Antonio in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

The best insider tips for Baltimore to San Antonio flights

Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Antonio trip

Airports

BWI

For early morning flights, arrive 20-30 minutes early due to busy security lines from 6-8 a.m. on weekdays.

SAT

Use rideshare services from SAT's lower level of Terminal A for convenient city access.

Our travel experts

Emily Zemler

Expert on BWI

Ramsey Qubein

Expert on SAT

Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Baltimore to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,258 reviews

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

7.9

Good

8,018 reviews

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

9,116 reviews

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

11,068 reviews

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Spirit Airlines

6.3

Okay

8,210 reviews

Southwest

8.0

Very good

4,258 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

How popular is this Baltimore to San Antonio flight route?
Flights from Baltimore/Washington to San Antonio have been viewed 5 times in the past calendar month.
How long is the flight from Baltimore to San Antonio?
Airlines like Frontier and Spirit Airlines fly from Baltimore to San Antonio in about 6h 39m. The time it takes to get you to your destination can typically vary by up to 11h 53m. There are 1405 mi between Baltimore and San Antonio. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Baltimore to San Antonio round-trip?
Our cheapest airline available from Baltimore to San Antonio is Spirit Airlines. Our recent data shows that you can find tickets from as low as $94 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $120 and $158 round-trip. You may be able to fly from Baltimore to San Antonio for 76% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Baltimore to San Antonio one-way?
The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $58. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Baltimore to San Antonio for a low price.
What are the cheapest flights from Baltimore to San Antonio?
The cheapest flight price from Baltimore to San Antonio is $222. On average you can expect to pay $487. The most popular route, (Baltimore/Washington - San Antonio), can usually be booked for $166.
Can I find deals for flights from Baltimore to San Antonio that include hotel bookings?
Yes. In addition to deals on Baltimore to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Baltimore to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to San Antonio.
Can I find deals for business class flights from Baltimore to San Antonio?
Yes. Cheapflights offers flight deals from Baltimore to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Baltimore to San Antonio?
Currently, July is the cheapest month in which you can book a flight from Baltimore to San Antonio (average of $94). Flying from Baltimore to San Antonio in December is currently the most expensive (average of $184). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

New Braunfels

Kerrville

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Top 6 airlines flying from Baltimore to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$114	Average$227	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$120	Average$228	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$158	Average$357	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$358	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$240	Average$382	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$279	Average$467	FlexibilityNo cancel fee	On-time63%

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$64+ Cheap flights from Baltimore to San Antonio (BWI - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Baltimore to San Antonio with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Baltimore/Washington to San Antonio are usually found in August or September, booked 88 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Baltimore to San Antonio

Cheapest flights from Baltimore to San AntonioExplore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Explore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Find flight deals from Baltimore to San Antonio

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to San Antonio in December.

Best time to book a flight from Baltimore to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Baltimore with our price prediction graph.

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Everything you need to know about your flight from Baltimore to San Antonio

How far ahead should I book a flight from Baltimore to San Antonio?

What is the cheapest month to book a flight from Baltimore to San Antonio?

What is the cheapest time of day to fly from BWI to SAT?

What’s the top layover airport for flights from Baltimore to San Antonio?

What’s the cheapest layover airport for flights from Baltimore to San Antonio?

What’s the fastest layover option from Baltimore to San Antonio?

Which airport typically offers the quickest layover for flights from Baltimore to San Antonio?

The best insider tips for Baltimore to San Antonio flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Antonio trip

Airports

BWI

SAT

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Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Baltimore to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How popular is this Baltimore to San Antonio flight route?

How long is the flight from Baltimore to San Antonio?

What are the cheapest airlines flying from Baltimore to San Antonio round-trip?

What are the cheapest airlines to fly from Baltimore to San Antonio one-way?

What are the cheapest flights from Baltimore to San Antonio?

Can I find deals for flights from Baltimore to San Antonio that include hotel bookings?

How can I find direct flights from Baltimore to San Antonio?

Can I find deals for business class flights from Baltimore to San Antonio?

What is the cheapest month to book a flight from Baltimore to San Antonio?

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Alternative routes for Baltimore to San Antonio

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Top 6 airlines flying from Baltimore to San Antonio

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Cheapest flights from Baltimore to San Antonio
Explore the most affordable flight options available from Baltimore to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.