$78+ Cheap flights from San Antonio to Baltimore (SAT - BWI)

One-way flight from San Antonio to Baltimore/Washington

Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Average for round-trip flights in September 2025

Find flight deals from San Antonio to Baltimore

Cheapest flights from San Antonio to Baltimore
Explore the most affordable flight options available from San Antonio to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 10/1612:09 pmSAT - BWI

1 stop28h 23mFrontier

Sun 10/196:05 amBWI - SAT

1 stop11h 47mFrontier

Deal found 9/10

$152

Fri 11/75:35 pmSAT - BWI

1 stop5h 38mFrontier

Mon 11/109:13 amBWI - SAT

1 stop8h 27mFrontier

Deal found 9/10

$153

Mon 9/225:40 pmSAT - BWI

1 stop5h 37mFrontier

Fri 9/266:27 pmBWI - SAT

1 stop21h 00mFrontier

Deal found 9/11

$160

Fri 10/35:40 pmSAT - BWI

1 stop5h 37mFrontier

Mon 10/66:27 pmBWI - SAT

1 stop21h 47mFrontier

Deal found 9/10

$166

Fri 9/265:40 pmSAT - BWI

1 stop5h 37mFrontier

Sun 9/286:27 pmBWI - SAT

1 stop25h 48mFrontier

Deal found 9/8

$167

Thu 9/1811:33 amSAT - BWI

1 stop11h 44mFrontier

Sun 9/216:27 pmBWI - SAT

1 stop25h 48mFrontier

Deal found 9/10

$175

Mon 9/225:40 pmSAT - BWI

1 stop5h 37mMultiple Airlines

Sat 9/278:16 amBWI - SAT

1 stop13h 36mMultiple Airlines

Deal found 9/11

$180

Thu 9/2511:33 amSAT - BWI

1 stop11h 44mFrontier

Mon 9/296:22 amBWI - SAT

1 stop11h 08mFrontier

Deal found 9/10

$181

Thu 10/211:33 amSAT - BWI

1 stop11h 44mFrontier

Fri 10/36:22 amBWI - SAT

1 stop11h 13mFrontier

Deal found 9/10

$183

Fri 10/247:10 pmSAT - BWI

1 stop21h 27mFrontier

Mon 10/276:05 amBWI - SAT

1 stop11h 45mFrontier

Deal found 9/10

$185

Thu 10/211:33 amSAT - BWI

1 stop11h 44mFrontier

Mon 10/66:22 amBWI - SAT

1 stop11h 08mFrontier

Deal found 9/10

$186

Thu 10/211:33 amSAT - BWI

1 stop6h 37mMultiple Airlines

Sat 10/48:16 amBWI - SAT

1 stop13h 36mMultiple Airlines

Deal found 9/10

$188

Best flights from San Antonio to Baltimore
Discover carefully curated flight deals from San Antonio to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Mon 9/225:40 pmSAT - BWI

1 stop5h 37mFrontier

Thu 10/910:00 amBWI - SAT

2 stops34h 35mFrontier

Deal found 9/11

$236

Fri 9/267:17 pmSAT - BWI

1 stop13h 15mSpirit Airlines

Sun 9/286:50 amBWI - SAT

1 stop12h 22mSpirit Airlines

Deal found 9/11

$237

Mon 10/65:40 pmSAT - BWI

1 stop6h 13mMultiple Airlines

Tue 10/711:23 amBWI - SAT

2 stops13h 17mMultiple Airlines

Deal found 9/10

$257

Sat 10/45:30 amSAT - BWI

2 stops7h 38mUnited Airlines

Sat 10/1110:51 amBWI - SAT

2 stops9h 39mUnited Airlines

Deal found 9/10

$265

Wed 10/15:35 amSAT - BWI

Nonstop3h 20mSouthwest

Wed 10/88:30 pmBWI - SAT

Nonstop3h 45mSouthwest

Deal found 9/10

$293

Thu 10/165:25 amSAT - BWI

1 stop5h 09mDelta

Mon 10/207:45 pmBWI - SAT

1 stop5h 35mDelta

Deal found 9/9

$303

Sat 10/187:00 amSAT - BWI

2 stops15h 11mSpirit Airlines

Fri 10/247:50 amBWI - SAT

1 stop10h 20mSpirit Airlines

Deal found 9/9

$271

Sat 11/17:00 amSAT - BWI

1 stop21h 25mMultiple Airlines

Mon 11/38:02 pmBWI - SAT

2 stops28h 38mMultiple Airlines

Deal found 9/11

$275

Fri 11/144:16 pmSAT - BWI

1 stop6h 38mSpirit Airlines

Tue 11/189:37 pmBWI - SAT

2 stops18h 34mSpirit Airlines

Deal found 9/11

$274

Thu 10/97:35 pmSAT - BWI

2 stops16h 05mMultiple Airlines

Mon 10/136:05 amBWI - SAT

1 stop11h 45mMultiple Airlines

Deal found 9/11

$283

Fri 11/76:00 amSAT - BWI

1 stop12h 30mSpirit Airlines

Mon 11/108:32 pmBWI - SAT

2 stops19h 39mSpirit Airlines

Deal found 9/11

$274

Last-minute flights from San Antonio to Baltimore
Discover last-minute flight deals from San Antonio to Baltimore. Data last updated September 11, 2025 and is based on user searches.

Thu 9/1811:33 amSAT - BWI

1 stop11h 44mFrontier

Sun 9/216:27 pmBWI - SAT

1 stop25h 48mFrontier

Deal found 9/10

$175

Thu 9/1811:33 amSAT - BWI

1 stop6h 37mMultiple Airlines

Sat 9/208:16 amBWI - SAT

1 stop13h 36mMultiple Airlines

Deal found 9/10

$190

Mon 9/225:40 pmSAT - BWI

1 stop5h 37mFrontier

Fri 9/266:27 pmBWI - SAT

1 stop21h 00mFrontier

Deal found 9/11

$160

Mon 9/225:40 pmSAT - BWI

1 stop5h 37mMultiple Airlines

Sat 9/278:16 amBWI - SAT

1 stop13h 36mMultiple Airlines

Deal found 9/11

$180

Thu 9/2511:33 amSAT - BWI

1 stop11h 44mFrontier

Mon 9/296:22 amBWI - SAT

1 stop11h 08mFrontier

Deal found 9/10

$181

Fri 9/265:40 pmSAT - BWI

1 stop5h 37mFrontier

Sun 9/286:27 pmBWI - SAT

1 stop25h 48mFrontier

Deal found 9/8

$167

Thu 10/211:33 amSAT - BWI

1 stop11h 44mFrontier

Fri 10/36:22 amBWI - SAT

1 stop11h 13mFrontier

Deal found 9/10

$183

Thu 10/211:33 amSAT - BWI

1 stop6h 37mFrontier

Mon 10/66:22 amBWI - SAT

1 stop11h 08mFrontier

Deal found 9/10

$186

Thu 10/211:33 amSAT - BWI

1 stop6h 37mMultiple Airlines

Sat 10/48:16 amBWI - SAT

1 stop13h 36mMultiple Airlines

Deal found 9/10

$188

Fri 10/35:40 pmSAT - BWI

1 stop5h 37mFrontier

Mon 10/66:27 pmBWI - SAT

1 stop21h 47mFrontier

Deal found 9/10

$166

Thu 10/1612:09 pmSAT - BWI

1 stop28h 23mFrontier

Sun 10/196:05 amBWI - SAT

1 stop11h 47mFrontier

Deal found 9/10

$152

Fri 10/247:10 pmSAT - BWI

1 stop21h 27mFrontier

Mon 10/276:05 amBWI - SAT

1 stop11h 45mFrontier

Deal found 9/10

$185

One-way flights from San Antonio to Baltimore
Search for one-way flight options from San Antonio to Baltimore. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Fri 10/175:45 pmSAT - BWI

1 stop5h 28mFrontier

Deal found 9/9

$78

Mon 10/275:45 pmSAT - BWI

1 stop5h 28mFrontier

Deal found 9/9

$80

Thu 10/211:33 amSAT - BWI

1 stop6h 37mFrontier

Deal found 9/11

$84

Thu 10/1612:09 pmSAT - BWI

1 stop28h 23mFrontier

Deal found 9/10

$86

Mon 11/105:35 pmSAT - BWI

1 stop5h 38mFrontier

Deal found 9/9

$87

Sun 10/268:26 pmSAT - BWI

1 stop20h 18mFrontier

Deal found 9/10

$92

Fri 9/195:40 pmSAT - BWI

1 stop5h 37mFrontier

Deal found 9/10

$94

Sat 10/185:32 pmSAT - BWI

1 stop23h 12mFrontier

Deal found 9/8

$101

Tue 11/114:16 pmSAT - BWI

1 stop6h 38mSpirit Airlines

Deal found 9/10

$102

Wed 12/33:02 pmSAT - BWI

1 stop13h 04mSpirit Airlines

Deal found 9/10

$106

Wed 10/87:00 amSAT - BWI

1 stop9h 16mSpirit Airlines

Deal found 9/9

$107

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Mon 9/22

5:40 pm-12:17 am

1 stop5h 37m

Baltimore/Washington

Thu 10/9

10:00 am-7:35 pm

2 stops34h 35m

$236

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Fri 9/26

7:17 pm-9:32 am

1 stop13h 15m

Baltimore/Washington

Sun 9/28

6:50 am-6:12 pm

1 stop12h 22m

$237

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Mon 10/6

5:40 pm-12:53 am

1 stop6h 13m

Baltimore/Washington

Tue 10/7

11:23 am-11:40 pm

2 stops13h 17m

$257

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Sat 10/4

5:30 am-2:08 pm

2 stops7h 38m

Baltimore/Washington

Sat 10/11

10:51 am-7:30 pm

2 stops9h 39m

$265

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Sat 10/18

7:00 am-11:11 pm

2 stops15h 11m

Baltimore/Washington

Fri 10/24

7:50 am-5:10 pm

1 stop10h 20m

$271

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Fri 11/14

4:16 pm-11:54 pm

1 stop6h 38m

Baltimore/Washington

Tue 11/18

9:37 pm-3:11 pm

2 stops18h 34m

$274

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Fri 11/7

6:00 am-7:30 pm

1 stop12h 30m

Baltimore/Washington

Mon 11/10

8:32 pm-3:11 pm

2 stops19h 39m

$274

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Sat 11/1

7:00 am-5:25 am

1 stop21h 25m

Baltimore/Washington

Mon 11/3

8:02 pm-11:40 pm

2 stops28h 38m

$275

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Thu 10/9

7:35 pm-12:40 pm

2 stops16h 05m

Baltimore/Washington

Mon 10/13

6:05 am-4:50 pm

1 stop11h 45m

$283

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Wed 10/1

5:35 am-9:55 am

Nonstop3h 20m

Baltimore/Washington

Wed 10/8

8:30 pm-11:15 pm

Nonstop3h 45m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 22 results

The best insider tips for San Antonio to Baltimore flights

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

Airports

SAT

For longer trips, the economy lots with shuttle service offer better value than parking directly at SAT.

BWI

Take the MTA Light Rail from BWI to downtown Baltimore for a quick and easy transit option.

Our travel experts

Emily Zemler

Expert on BWI

Ramsey Qubein

Expert on SAT

Best time to book a flight from San Antonio to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from San Antonio 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 San Antonio to Baltimore

Prices

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

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Baltimore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from San Antonio to Baltimore (average of $241). Flying from San Antonio to Baltimore in March is currently the most expensive (average of $290). 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 SAT to BWI?

A simple way to save on the total cost of your ticket is to fly from San Antonio to Baltimore in the evening. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Baltimore

Read through reviews of airlines operating flights from San Antonio to Baltimore, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

8.0

Very good

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,960 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,937 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

American Airlines

7.2

Good

10,000 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Spirit Airlines

6.3

Okay

8,023 reviews

8.0

Very good