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Cheap flights from Baltimore to San Antonio from $63

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 2/2. 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

Enter your travel dates to find the best prices.
Frontier Logo
11:24 am - 5:03 pm
BWI
-
SAT
6h 39m1 stop
Frontier Logo
6:13 pm - 12:36 am
SAT
-
BWI
5h 23m1 stop
$128Frontier
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
4:44 pm - 11:52 pm
BWI
-
SAT
8h 08m1 stop
Multiple Airlines Logo
8:00 pm - 10:36 pm
SAT
-
BWI
25h 36m1 stop
$153Multiple Airlines
Sat, Jan 10 - Mon, Jan 12
Frontier Logo
6:00 am - 5:03 pm
BWI
-
SAT
12h 03m1 stop
Frontier Logo
6:13 pm - 12:36 am
SAT
-
BWI
5h 23m1 stop
$155Frontier
Fri, Jan 30 - Mon, Feb 2
Multiple Airlines Logo
11:24 am - 5:03 pm
BWI
-
SAT
6h 39m1 stop
Multiple Airlines Logo
10:35 am - 7:03 pm
SAT
-
BWI
7h 28m1 stop
$156Multiple Airlines
Sun, Jan 25 - Sat, Jan 31
Multiple Airlines Logo
11:24 am - 5:03 pm
BWI
-
SAT
6h 39m1 stop
Multiple Airlines Logo
10:35 am - 11:36 pm
SAT
-
BWI
12h 01m1 stop
$160Multiple Airlines
Sun, Jan 25 - Sat, Jan 31
Frontier Logo
9:11 pm - 2:07 pm
BWI
-
SAT
17h 56m1 stop
Frontier Logo
5:18 pm - 12:24 am
SAT
-
BWI
6h 06m1 stop
$164Frontier
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
9:11 pm - 2:07 pm
BWI
-
SAT
17h 56m1 stop
Frontier Logo
5:18 pm - 12:24 am
SAT
-
BWI
6h 06m1 stop
$167Frontier
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
11:30 am - 11:52 pm
BWI
-
SAT
13h 22m1 stop
Multiple Airlines Logo
10:35 am - 11:59 pm
SAT
-
BWI
12h 24m1 stop
$168Multiple Airlines
Tue, Jan 20 - Thu, Jan 22
Multiple Airlines Logo
4:44 pm - 11:52 pm
BWI
-
SAT
8h 08m1 stop
Multiple Airlines Logo
8:00 pm - 10:36 pm
SAT
-
BWI
25h 36m1 stop
$171Multiple Airlines
Fri, Jan 9 - Mon, Jan 12
Spirit Airlines Logo
11:30 am - 11:52 pm
BWI
-
SAT
13h 22m1 stop
Spirit Airlines Logo
10:35 am - 11:36 pm
SAT
-
BWI
12h 01m1 stop
$172Spirit Airlines
Mon, Feb 2 - Thu, Feb 5

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
$128
Find similar
Frontier
Jan 30
BWI6:00 amBaltimore/Washington
12h 03m
1 stop
SAT5:03 pmSan Antonio
Feb 2
SAT6:13 pmSan Antonio
5h 23m
1 stop
BWI12:36 amBaltimore/Washington
$155
Find similar
Frontier
Feb 20
BWI9:11 pmBaltimore/Washington
17h 56m
1 stop
SAT2:07 pmSan Antonio
Feb 23
SAT5:18 pmSan Antonio
6h 06m
1 stop
BWI12:24 amBaltimore/Washington
$164
Find similar

Spirit Airlines flights from Baltimore to San Antonio

Our best Spirit Airlines deals on Baltimore to San Antonio flight tickets
Spirit Airlines
Feb 2
BWI11:30 amBaltimore/Washington
13h 22m
1 stop
SAT11:52 pmSan Antonio
Feb 5
SAT10:35 amSan Antonio
12h 01m
1 stop
BWI11:36 pmBaltimore/Washington
$172
Find similar
Spirit Airlines
Jan 15
BWI4:44 pmBaltimore/Washington
8h 08m
1 stop
SAT11:52 pmSan Antonio
Jan 22
SAT10:35 amSan Antonio
7h 28m
1 stop
BWI7:03 pmBaltimore/Washington
$209
Find similar
Spirit Airlines
Jan 27
BWI1:00 pmBaltimore/Washington
35h 52m
2 stops
SAT11:52 pmSan Antonio
Jan 29
SAT10:35 amSan Antonio
7h 28m
1 stop
BWI7:03 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 December 11, 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

$128

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 1/10

4:44 pm-11:52 pm

1 stop8h 08m

San Antonio

Mon 1/12

8:00 pm-10:36 pm

1 stop25h 36m

$153

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/30

6:00 am-5:03 pm

1 stop12h 03m

San Antonio

Mon 2/2

6:13 pm-12:36 am

1 stop5h 23m

$155

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sun 1/25

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Sat 1/31

10:35 am-7:03 pm

1 stop7h 28m

$156

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sun 1/25

11:24 am-5:03 pm

1 stop6h 39m

San Antonio

Sat 1/31

10:35 am-11:36 pm

1 stop12h 01m

$160

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 2/20

9:11 pm-2:07 pm

1 stop17h 56m

San Antonio

Mon 2/23

5:18 pm-12:24 am

1 stop6h 06m

$164

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 2/27

9:11 pm-2:07 pm

1 stop17h 56m

San Antonio

Mon 3/2

5:18 pm-12:24 am

1 stop6h 06m

$167

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Tue 1/20

11:30 am-11:52 pm

1 stop13h 22m

San Antonio

Thu 1/22

10:35 am-11:59 pm

1 stop12h 24m

$168

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 1/9

4:44 pm-11:52 pm

1 stop8h 08m

San Antonio

Mon 1/12

8:00 pm-10:36 pm

1 stop25h 36m

$171

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Mon 2/2

11:30 am-11:52 pm

1 stop13h 22m

San Antonio

Thu 2/5

10:35 am-11:36 pm

1 stop12h 01m

$172

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 Wednesday when prices can be found for as low as $345. 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 $498.

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 $317. 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 $400. 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 $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.

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

No. A direct flight is the cheapest option for a flight between Baltimore to San Antonio.

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

As of December 2025, prices for Baltimore to San Antonio flights are approximately 49% 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

$260

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 $260. The best round-trip flight deal from Baltimore to San Antonio found on momondo in the last 72 hours is $479.
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 in San Antonio. From Baltimore there are direct flights to 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 3h 30m.

  • 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
3,084 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $114Free CancellationRating
6.3
8,180 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $240Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
SouthwestPriceFrom $279Free CancellationRating
7.9
4,253 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 $279. Generally, Southwest has 8 flights on this route every week with an average price of $464. Southwest is rated 7.9/10 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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