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Cheap flights from Baltimore to San Antonio from $57

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to San Antonio departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:24 am - 5:03 pmBWI-SAT
6h 39m1 stop
Frontier Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$134Frontier
Find Deal
Fri, Jan 23 - Mon, Jan 26
Frontier Logo
11:24 am - 5:03 pmBWI-SAT
6h 39m1 stop
Frontier Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$138Frontier
Find Deal
Fri, Jan 23 - Fri, Jan 30
Frontier Logo
6:00 am - 5:03 pmBWI-SAT
12h 03m1 stop
Frontier Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$142Frontier
Find Deal
Fri, Jan 30 - Sun, Feb 1
Multiple Airlines Logo
11:30 am - 11:52 pmBWI-SAT
13h 22m1 stop
Multiple Airlines Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$154Multiple Airlines
Find Deal
Tue, Jan 27 - Fri, Jan 30
Frontier Logo
6:00 am - 5:03 pmBWI-SAT
12h 03m1 stop
Frontier Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$156Frontier
Find Deal
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
8:09 pm - 6:18 pmBWI-SAT
23h 09m1 stop
Multiple Airlines Logo
6:30 am - 10:36 pmSAT-BWI
15h 06m1 stop
$165Multiple Airlines
Find Deal
Sat, Jan 10 - Wed, Jan 14
Multiple Airlines Logo
11:30 am - 11:52 pmBWI-SAT
13h 22m1 stop
Multiple Airlines Logo
6:13 pm - 12:36 amSAT-BWI
5h 23m1 stop
$168Multiple Airlines
Find Deal
Wed, Jan 14 - Mon, Jan 26
Multiple Airlines Logo
11:30 am - 11:52 pmBWI-SAT
13h 22m1 stop
Multiple Airlines Logo
8:16 pm - 10:36 pmSAT-BWI
25h 20m1 stop
$171Multiple Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
11:30 am - 8:14 amBWI-SAT
21h 44m1 stop
Multiple Airlines Logo
8:24 pm - 12:21 amSAT-BWI
26h 57m2 stops
$181Multiple Airlines
Find Deal
Wed, Jan 14 - Mon, Jan 26
Multiple Airlines Logo
4:44 pm - 11:52 pmBWI-SAT
8h 08m1 stop
Multiple Airlines Logo
6:30 am - 3:06 pmSAT-BWI
7h 36m1 stop
$182Multiple Airlines
Find Deal
Sat, Jan 24 - Fri, Jan 30

Frontier flights from Baltimore to San Antonio

Our best Frontier deals on Baltimore to San Antonio flight tickets
Frontier
Jan 23
BWI11:24 amBaltimore/Washington
6h 39m
1 stop
SAT5:03 pmSan Antonio
Jan 26
SAT6:13 pmSan Antonio
5h 23m
1 stop
BWI12:36 amBaltimore/Washington
$134
Find similar
Frontier
Jan 23
BWI11:24 amBaltimore/Washington
6h 39m
1 stop
SAT5:03 pmSan Antonio
Jan 30
SAT6:13 pmSan Antonio
5h 23m
1 stop
BWI12:36 amBaltimore/Washington
$138
Find similar
Frontier
Jan 30
BWI6:00 amBaltimore/Washington
12h 03m
1 stop
SAT5:03 pmSan Antonio
Feb 1
SAT6:13 pmSan Antonio
5h 23m
1 stop
BWI12:36 amBaltimore/Washington
$142
Find similar

Spirit Airlines flights from Baltimore to San Antonio

Our best Spirit Airlines deals on Baltimore to San Antonio flight tickets
Spirit Airlines
Dec 2
BWI5:40 amBaltimore/Washington
13h 52m
1 stop
SAT6:32 pmSan Antonio
Jan 7
SAT12:45 pmSan Antonio
10h 04m
1 stop
BWI11:49 pmBaltimore/Washington
$197
Find similar
Spirit Airlines
Nov 24
BWI7:30 amBaltimore/Washington
12h 51m
1 stop
SAT7:21 pmSan Antonio
Nov 27
SAT2:12 pmSan Antonio
8h 21m
1 stop
BWI11:33 pmBaltimore/Washington
$203
Find similar
Spirit Airlines
Dec 3
BWI5:40 amBaltimore/Washington
13h 52m
1 stop
SAT6:32 pmSan Antonio
Dec 4
SAT1:55 pmSan Antonio
8h 50m
1 stop
BWI11:45 pmBaltimore/Washington
$211
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 19, 2025.
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

Fri 1/23

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Mon 1/26

6:13 pm-12:36 am

1 stop5h 23m

$134

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/23

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Fri 1/30

6:13 pm-12:36 am

1 stop5h 23m

$138

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/30

6:00 am-5:03 pm

1 stop12h 03m

San Antonio

Sun 2/1

6:13 pm-12:36 am

1 stop5h 23m

$142

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Tue 1/27

11:30 am-11:52 pm

1 stop13h 22m

San Antonio

Fri 1/30

6:13 pm-12:36 am

1 stop5h 23m

$154

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 2/6

6:00 am-5:03 pm

1 stop12h 03m

San Antonio

Sun 2/8

6:13 pm-12:36 am

1 stop5h 23m

$156

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 1/10

8:09 pm-6:18 pm

1 stop23h 09m

San Antonio

Wed 1/14

6:30 am-10:36 pm

1 stop15h 06m

$165

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Wed 1/14

11:30 am-11:52 pm

1 stop13h 22m

San Antonio

Mon 1/26

6:13 pm-12:36 am

1 stop5h 23m

$168

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/9

11:30 am-11:52 pm

1 stop13h 22m

San Antonio

Mon 1/12

8:16 pm-10:36 pm

1 stop25h 20m

$171

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Wed 1/14

11:30 am-8:14 am

1 stop21h 44m

San Antonio

Mon 1/26

8:24 pm-12:21 am

2 stops26h 57m

$181

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 1/24

4:44 pm-11:52 pm

1 stop8h 08m

San Antonio

Fri 1/30

6:30 am-3:06 pm

1 stop7h 36m

$182

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Baltimore to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Baltimore during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $327.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $354. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $507.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Baltimore to San Antonio in the evening for as low as $316. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $416. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Baltimore/Washington to San Antonio flight route?

Fly from Baltimore/Washington to San Antonio for the best Baltimore/Washington - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Baltimore for as low as $215 on momondo.

What cabin class options are available on Baltimore/Washington to San Antonio flights?

There is only 1 cabin class available to choose from on Baltimore/Washington to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Baltimore to San Antonio flight prices changed over time?

As of November 2025, prices for Baltimore to San Antonio flights are approximately 150% more expensive when compared to flights at the same time last year.

When to book flights from Baltimore to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Baltimore to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Baltimore to San Antonio (BWI to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to San Antonio

Best Price Found

$201

Fastest flight time

3h 55m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Baltimore in the past 72 hours is $201. The best round-trip flight deal from Baltimore to San Antonio found on momondo in the last 72 hours is $447.
The fastest flight from Baltimore to San Antonio takes 3h 55m
Direct flights go from Baltimore to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)
Search flight deals

  • How far is Baltimore/Washington to San Antonio by plane?

    A flight from Baltimore/Washington to San Antonio will travel around 1415.7 mi. In terms of flight time, this usually takes a little over 6h 39m.

  • When did momondo last update prices for flights from Baltimore/Washington Airport to San Antonio Airport?

    Prices for flights from Baltimore/Washington Airport to San Antonio Airport refresh daily.

  • How many operators does momondo search for flights from Baltimore/Washington Airport to San Antonio Airport?

  • How old do you have to be to fly from Baltimore/Washington Airport to San Antonio Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Baltimore to San Antonio?

  • What is the most popular airline from Baltimore to San Antonio?

Best airlines flying from Baltimore to San Antonio

Compare and see reviews for airlines that fly from Baltimore to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $86Free CancellationRating
5.8
3,105 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $114Free CancellationRating
6.3
8,151 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $240Free CancellationRating
7.4
9,019 reviews
Search United Airlines flights
SouthwestPriceFrom $280Free CancellationRating
8.0
4,248 reviews
Search Southwest flights

  • Southwest Flights From Baltimore to San Antonio

    The lowest priced Southwest flight from Baltimore to San Antonio from the last 72 hours was $280. Generally, Southwest has 8 flights on this route every week with an average price of $470. Southwest is rated 8.0/10 by our users.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Boerne
Kerrville
Schertz
Pleasanton

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to San Antonio?

It is quick and easy to find Baltimore to San Antonio flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Antonio that suits you.

Can I find flights from Baltimore to San Antonio with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Antonio from Baltimore with this policy.

How can momondo help me find flights from Baltimore to San Antonio?

Once all potential Baltimore to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Baltimore to San Antonio right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Baltimore to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

An easier way to manage your San Antonio trip

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