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Cheap flights from Baltimore to San Antonio from $79

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 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Baltimore to San Antonio

Cheap round-trip flights

Frontier Logo
6:22 am - 4:35 pmBWI-SAT
11h 13m1 stop
Frontier Logo
5:40 pm - 12:53 amSAT-BWI
6h 13m1 stop
$143Frontier
Find Deal
fre., okt. 3 - man., okt. 6
Frontier Logo
6:05 am - 4:50 pmBWI-SAT
11h 45m1 stop
Frontier Logo
5:45 pm - 12:13 amSAT-BWI
5h 28m1 stop
$144Frontier
Find Deal
man., okt. 13 - fre., okt. 17
Frontier Logo
12:29 pm - 6:15 pmBWI-SAT
6h 46m1 stop
Frontier Logo
5:45 pm - 12:13 amSAT-BWI
5h 28m1 stop
$151Frontier
Find Deal
fre., okt. 24 - man., okt. 27
Frontier Logo
6:27 pm - 2:27 pmBWI-SAT
21h 00m1 stop
Frontier Logo
5:40 pm - 12:53 amSAT-BWI
6h 13m1 stop
$152Frontier
Find Deal
fre., okt. 3 - man., okt. 6
United Airlines Logo
4:15 pm - 9:29 pmBWI-SAT
6h 14m1 stop
United Airlines Logo
2:25 pm - 10:59 pmSAT-BWI
7h 34m1 stop
$167United Airlines
Find Deal
ons., okt. 22 - lør., okt. 25
American Airlines Logo
6:14 am - 11:46 amBWI-SAT
6h 32m1 stop
American Airlines Logo
7:21 am - 1:51 pmSAT-BWI
5h 30m1 stop
$168American Airlines
Find Deal
ons., okt. 29 - ons., nov. 5
United Airlines Logo
6:29 am - 3:25 pmBWI-SAT
9h 56m2 stops
United Airlines Logo
1:05 pm - 9:22 pmSAT-BWI
7h 17m1 stop
$172United Airlines
Find Deal
lør., okt. 18 - tir., okt. 21
Spirit Airlines Logo
8:16 am - 8:52 pmBWI-SAT
13h 36m1 stop
Spirit Airlines Logo
7:00 am - 5:16 pmSAT-BWI
9h 16m1 stop
$219Spirit Airlines
Find Deal
lør., okt. 4 - tir., okt. 7
Spirit Airlines Logo
7:50 am - 11:40 pmBWI-SAT
16h 50m1 stop
Spirit Airlines Logo
7:00 am - 5:16 pmSAT-BWI
9h 16m1 stop
$221Spirit Airlines
Find Deal
man., okt. 6 - ons., okt. 8
Delta Logo
6:00 am - 11:50 amBWI-SAT
6h 50m1 stop
Delta Logo
4:35 pm - 11:02 pmSAT-BWI
5h 27m1 stop
$237Delta
Find Deal
tor., okt. 30 - man., nov. 3

Spirit Airlines flights from Baltimore to San Antonio

Our best Spirit Airlines deals on Baltimore to San Antonio flight tickets
Spirit Airlines
Oct 4
BWI8:16 amBaltimore/Washington
13h 36m
1 stop
SAT8:52 pmSan Antonio
Oct 7
SAT7:00 amSan Antonio
9h 16m
1 stop
BWI5:16 pmBaltimore/Washington
$219
Find similar
Spirit Airlines
Oct 6
BWI7:50 amBaltimore/Washington
16h 50m
1 stop
SAT11:40 pmSan Antonio
Oct 8
SAT7:00 amSan Antonio
9h 16m
1 stop
BWI5:16 pmBaltimore/Washington
$221
Find similar
Spirit Airlines
Sep 20
BWI8:16 amBaltimore/Washington
13h 36m
1 stop
SAT8:52 pmSan Antonio
Oct 7
SAT7:00 amSan Antonio
9h 16m
1 stop
BWI5:16 pmBaltimore/Washington
$228
Find similar

Frontier flights from Baltimore to San Antonio

Our best Frontier deals on Baltimore to San Antonio flight tickets
Frontier
Oct 3
BWI6:22 amBaltimore/Washington
11h 13m
1 stop
SAT4:35 pmSan Antonio
Oct 6
SAT5:40 pmSan Antonio
6h 13m
1 stop
BWI12:53 amBaltimore/Washington
$143
Find similar
Frontier
Oct 13
BWI6:05 amBaltimore/Washington
11h 45m
1 stop
SAT4:50 pmSan Antonio
Oct 17
SAT5:45 pmSan Antonio
5h 28m
1 stop
BWI12:13 amBaltimore/Washington
$144
Find similar
Frontier
Oct 24
BWI12:29 pmBaltimore/Washington
6h 46m
1 stop
SAT6:15 pmSan Antonio
Oct 27
SAT5:45 pmSan Antonio
5h 28m
1 stop
BWI12:13 amBaltimore/Washington
$151
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 september 15, 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

fre. 10/3

6:22 am-4:35 pm

1 stop11h 13m

San Antonio

man. 10/6

5:40 pm-12:53 am

1 stop6h 13m

$143

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

man. 10/13

6:05 am-4:50 pm

1 stop11h 45m

San Antonio

fre. 10/17

5:45 pm-12:13 am

1 stop5h 28m

$144

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

fre. 10/24

12:29 pm-6:15 pm

1 stop6h 46m

San Antonio

man. 10/27

5:45 pm-12:13 am

1 stop5h 28m

$151

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

fre. 10/3

6:27 pm-2:27 pm

1 stop21h 00m

San Antonio

man. 10/6

5:40 pm-12:53 am

1 stop6h 13m

$152

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

ons. 10/22

4:15 pm-9:29 pm

1 stop6h 14m

San Antonio

lør. 10/25

2:25 pm-10:59 pm

1 stop7h 34m

$167

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

ons. 10/29

6:14 am-11:46 am

1 stop6h 32m

San Antonio

ons. 11/5

7:21 am-1:51 pm

1 stop5h 30m

$168

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

lør. 10/18

6:29 am-3:25 pm

2 stops9h 56m

San Antonio

tir. 10/21

1:05 pm-9:22 pm

1 stop7h 17m

$172

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

lør. 10/4

8:16 am-8:52 pm

1 stop13h 36m

San Antonio

tir. 10/7

7:00 am-5:16 pm

1 stop9h 16m

$219

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

man. 10/6

7:50 am-11:40 pm

1 stop16h 50m

San Antonio

ons. 10/8

7:00 am-5:16 pm

1 stop9h 16m

$221

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

tor. 10/30

6:00 am-11:50 am

1 stop6h 50m

San Antonio

man. 11/3

4:35 pm-11:02 pm

1 stop5h 27m

$237

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 typical price of a round-trip flight between Baltimore and San Antonio?

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 January instead. Flights to San Antonio in January, while not as cheap as those in August, still average around $283.

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 $358. 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 $517.

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 $315. 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 morning, with an average ticket price of $430. Departure times in the morning 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 $383 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 $289 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.

Can stopping save me money on Baltimore to San Antonio flights?

You could potentially save up to 10% on your flight if you consider stops on a Baltimore to San Antonio flight.

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

As of September 2025, prices for Baltimore to San Antonio flights are approximately 131% 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

$349

Fastest flight time

3h 30m

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 $349. The best round-trip flight deal from Baltimore to San Antonio found on momondo in the last 72 hours is $347.
The fastest flight from Baltimore to San Antonio takes 3h 30m
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 14m.

  • 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
3,172 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $114Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $238Free CancellationRating
7.9
7,954 reviews
Search Delta flights
United AirlinesPriceFrom $240Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
SouthwestPriceFrom $264Free CancellationRating
8.0
4,242 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 $264. Generally, Southwest has 13 flights on this route every week with an average price of $464. 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
Kerrville
Boerne
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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ons. 10/15
ons. 10/22
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