BWI - SAT

$78 Find Cheap Flights from Baltimore to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to San Antonio departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Antonio, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Baltimore to San Antonio (BWI-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to San Antonio

Mon, Jul 7 - Thu, Jul 10
Spirit Airlines Logo
6:20 am - 8:49 amBWI-SAT
3h 29mnonstop
Spirit Airlines Logo
5:38 pm - 8:44 amSAT-BWI
14h 06m1 stop
$175Spirit Airlines
Find Deal
Fri, Jul 4 - Mon, Jul 7
 Logo
7:20 am - 4:43 pmBWI-SAT
10h 23m1 stop
 Logo
7:30 pm - 11:54 pmSAT-BWI
3h 24mnonstop
Fri, Jul 11 - Fri, Jul 18
American Airlines Logo
5:00 am - 9:01 amBWI-SAT
5h 01m1 stop
American Airlines Logo
2:13 pm - 10:15 pmSAT-BWI
7h 02m1 stop
$187American Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 22
American Airlines Logo
10:00 am - 3:53 pmBWI-SAT
6h 53m1 stop
American Airlines Logo
3:38 pm - 11:02 pmSAT-BWI
6h 24m1 stop
$189American Airlines
Find Deal
Mon, Jun 30 - Fri, Jul 4
Frontier Logo
7:20 am - 4:43 pmBWI-SAT
10h 23m1 stop
Frontier Logo
5:38 pm - 12:26 amSAT-BWI
5h 48m1 stop
$200Frontier
Find Deal
Mon, Jul 7 - Mon, Jul 14
Frontier Logo
10:34 am - 4:52 pmBWI-SAT
7h 18m1 stop
Frontier Logo
5:38 pm - 12:25 amSAT-BWI
5h 47m1 stop
$210Frontier
Find Deal
Fri, Jul 25 - Mon, Jul 28
Southwest Logo
8:05 pm - 10:40 pmBWI-SAT
3h 35mnonstop
Southwest Logo
5:30 pm - 11:40 pmSAT-BWI
5h 10m1 stop
$215Southwest
Find Deal
Thu, Aug 7 - Mon, Aug 11
Southwest Logo
6:20 am - 11:55 amBWI-SAT
6h 35m1 stop
Southwest Logo
5:10 am - 9:30 amSAT-BWI
3h 20mnonstop
$216Southwest
Find Deal
Mon, Jul 21 - Fri, Jul 25
Delta Logo
5:26 pm - 10:18 pmBWI-SAT
5h 52m1 stop
Delta Logo
6:11 pm - 12:54 amSAT-BWI
5h 43m1 stop
$237Delta
Find Deal
Fri, Jul 18 - Fri, Jul 25
Delta Logo
6:00 am - 10:30 amBWI-SAT
5h 30m1 stop
Delta Logo
6:11 pm - 12:54 amSAT-BWI
5h 43m1 stop
$247Delta
Find Deal
Expert advice

Expert advice for your flight from Baltimore to San Antonio

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
BWI

BWI offers a street pricing policy for dining, ensuring airport prices match local rates. Arrive early to enjoy local specialties like Maryland blue crab.

Read more about BWIby Harriet Baskas
SAT

The #5 VIA bus connects SAT to downtown San Antonio in about 30 minutes. It's affordable and spacious, even with large luggage.

Read more about SATby Brandon Schultz
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on BWI

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Useful Info

KAYAK's insights & trends for Baltimore to San Antonio flights

Get data-powered insights and trends into flights from Baltimore to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Baltimore to San Antonio?

The average price of all round-trip flights from Baltimore to San Antonio clicked on KAYAK for each day over the last 12 months.

When flying from Baltimore to San Antonio, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Baltimore, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

What is the cheapest month to fly from Baltimore to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Baltimore to San Antonio is January, where tickets cost $283 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $500 and $492 respectively.

Can I save money by flying with a layover from Baltimore to San Antonio?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $394, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Baltimore to San Antonio, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$78
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Baltimore to San Antonio

When to book flights from Baltimore to San Antonio

Are your dates flexible? Find out the best times to travel from Baltimore to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to San Antonio

  • Which airline(s) should I book when flying from Baltimore to San Antonio with my kid(s)?

    JetBlue tops the list of airlines preferred by most of the travelers flying from Baltimore to San Antonio, accompanied by their children. The airline is quite popular for having the most of extra legroom and spacious seats in all its cabins. Additionally, parents accompanied by their kids enjoy priority boarding at BWI and priority deplaning at SAT.

  • What other cities can I get to from San Antonio International Airport?

    Booking a flight from Baltimore to San Antonio put you in a better position to connect to several other cities served by San Antonio International Airport (SAT). Concan, Fredericksburg, Port Aransas, and Boerne are among the cities to which you can easily get to from SAT.

  • Which airlines offer more eco-friendly flights from Baltimore to San Antonio?

    Among the airlines flying to San Antonio from Baltimore, American Airlines tops the list of those offering highly eco-friendly flights. Increased use of sustainable aviation fuel to reduce its overall carbon emission and recycling of aluminum cans are among the activities that make American Airlines more eco-friendly.

  • Can I upgrade to first class from economy if I book any of the airlines flying from Baltimore to San Antonio?

    Yes. If you book economy with United Airlines or American Airlines for your flight to San Antonio from Baltimore, you will have a chance to upgrade to first class by paying a small upgrade fee.

  • What is the cheapest flight from Baltimore to San Antonio?

    In the last 3 days, the lowest price for a flight from Baltimore to San Antonio was $78 for a one-way ticket and $175 for a round-trip.

  • Do I need a passport to fly between Baltimore and San Antonio?

    No, a passport isn't needed to fly from Baltimore to San Antonio. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Baltimore to San Antonio?

    Baltimore and San Antonio are both served by 1 main airport. You will leave Baltimore from Baltimore/Washington and will be arriving at San Antonio.

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to San Antonio?

    American Airlines, Hawaiian Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Baltimore to San Antonio flight route.

  • Which aircraft models fly most regularly from Baltimore to San Antonio?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Baltimore to San Antonio flight route.

  • On which days can I fly direct from Baltimore to San Antonio?

    There are nonstop flights from Baltimore to San Antonio on a daily basis.

  • Which is the best airline for flights from Baltimore to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Baltimore to San Antonio are Southwest and Delta. With an average price for the route of $466 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $443 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Baltimore to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Baltimore to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $80 or less one-way and $218 or less round-trip.
  • Baltimore/Washington International Thurgood Marshall Airport (BWI) is the main departure airport for flights from Baltimore to San Antonio. However, in rare cases, travelers from Baltimore seeking to travel to San Antonio may opt to connect through Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA) for their flight to San Antonio International Airport (SAT). Since the routes that have DCA or IAD as the departure airport for flights to SAT are less popular than the one with BWI as the departure airport, they increase your chances of getting cheaper flight deals.
  • Detroit Metropolitan Wayne County Airport (DTW), Hartsfield-Jackson International Airport (ATL), and Dallas/Fort Worth International Airport (DFW) are some of the common layover airports for flights from Baltimore to San Antonio. For instance, if you book Delta or American Airlines for your one-stop flight from BWI, you will be having a layover at ATL or DFW.
  • When connecting from Downtown Baltimore to Baltimore/Washington International Thurgood Marshall Airport (BWI) in order to catch up with your flight to San Antonio, you have two main transport options – MTA Commuter Bus 201 and taxis. A bus is ideal for those traveling on a tight budget, while a taxi is a preference among those rushing against time.
  • All airlines flying from Baltimore to San Antonio have pet-friendly policies, which make it convenient for pet lovers to remain in the company of their four-legged friends. However, if you book Frontier, you can expect lower pet charges compared to the other airlines along this route. Frontier allows your pet(s) to travel in-cabin as long as their carriers do not exceed 18" x 14" x 8.”
  • As you plan for your flight to San Antonio from Baltimore, knowledge of the ground transport options available after landing at San Antonio International Airport (SAT) essential. In particular, if you would prefer using rental cars to get out of SAT, consider reserving one in advance before arriving at the airport. The best time to reserve your preferred rental car online is at the time of booking your flight.

Prefer to fly direct from Baltimore to San Antonio?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Baltimore/Washington to San Antonio.
Find which airlines fly direct from Baltimore/Washington Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to San Antonio

Monday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

San Antonio to Baltimore/Washington

Monday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 5 airlines serving from Baltimore to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4279 reviews
7.6Entertainment
8.6Crew
7.1Food
8.2Boarding
8.0Comfort
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

The seats were a bit cramped and worn, but otherwise okay.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Easy to book and to get check in and get on and off.

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Plane still had screens for watching movies. Good selection too.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Boarding on time and fight was early but they didn't let us off the plane on time so we missed our connecting flight to Japan.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Eventless. It was a good flight and good crew. Can’t complaint.

Spirit gets you there; it's no worse than any other aircraft, all things considered. (It's not like everyone else is such a hero). But - holy moses - do they nickel and dime you to absolutely every nickel - I was really expecting to have to pay to use the bathroom. And when the captain comes on with a 5 minute sales pitch about getting "points", that was like something on Bizarro world. Other than that, everyone else was professional and worked hard to get us from point A to point B. I'm not loving all the "self-service" stuff but there it is - just when the machines don't work you don't have anyone to talk to.

Easy boarding and good flight. Need to work on the beverage and snack situation

The staff was great, but because the 2nd lieutenant didn’t show up for the flight we all had to deboard and wait 2 1/2 hours for one to show up. Very disappointing the crew can’t get schedules confirmed which wouldn’t have caused this issue.

The flight, the pilot, the flight crew, and the ground personnel were all great, despite the sudden and lengthy FAA Ground Stop in Boston, which SPIRIT obviously had nothing to do with and no control over.

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

My experience with Spirit went pretty much as expected. It's a no frills airline, and you get what you pay for. I don't require much, so I was grateful to have an inexpensive way to travel. It is sad to me that the gate agents and flight crew don't smile much or seem very friendly or helpful. They are competent and efficient, and that's really all I need.

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

Last minute 2-3 hr delay in flight schedule; no explanation Unexpected extra $52 charge What's the benefit of choosing a cheap airline if you trick people last minute and force them to pay extra last minute? Did not appreciate being cornered.

Most uncomfortable seating I have ever experienced. And they do not provide any beverage unless purchased. Water was 4.59 a bottle. Same for a soda. A cup of water should be free. I will never fly Spirit again.

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