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 7/4. 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

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 Flight Deals 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.

Recent round-trip flight deals from Baltimore to San Antonio

KAYAK's recommended round-trip deals from the most popular airlines that fly from Baltimore to San Antonio.
Discover the best prices for you by selecting your travel dates on KAYAK.
Spirit Airlines Logo
6:20 am - 12:32 pmBWI-SAT
7h 12m1 stop
Spirit Airlines Logo
1:27 pm - 12:18 amSAT-BWI
9h 51m1 stop
$166Spirit Airlines
Find Deal
Sat, May 17 - Mon, May 19
Spirit Airlines Logo
6:20 am - 12:32 pmBWI-SAT
7h 12m1 stop
Spirit Airlines Logo
11:06 am - 3:26 pmSAT-BWI
3h 20mnonstop
$168Spirit Airlines
Find Deal
Sat, May 17 - Mon, May 19
Spirit Airlines Logo
2:59 pm - 12:32 pmBWI-SAT
22h 33m1 stop
Spirit Airlines Logo
1:27 pm - 12:18 amSAT-BWI
9h 51m1 stop
$169Spirit Airlines
Find Deal
Tue, May 13 - Thu, May 15
 Logo
5:23 pm - 6:51 pmBWI-SAT
26h 28m1 stop
 Logo
1:27 pm - 12:18 amSAT-BWI
9h 51m1 stop
Fri, May 30 - Thu, Jun 5
 Logo
5:45 am - 11:14 amBWI-SAT
6h 29m1 stop
 Logo
6:35 pm - 11:23 amSAT-BWI
15h 48m1 stop
Tue, Jul 22 - Sun, Jul 27
Delta Logo
6:25 pm - 12:17 amBWI-SAT
6h 52m1 stop
Delta Logo
12:20 pm - 8:43 pmSAT-BWI
7h 23m1 stop
$332Delta
Find Deal
Mon, Jun 23 - Sat, Jun 28
Southwest Logo
5:15 pm - 10:35 pmBWI-SAT
6h 20m2 stops
Southwest Logo
4:45 pm - 12:05 amSAT-BWI
6h 20m1 stop
$340Southwest
Find Deal
Tue, Jun 24 - Tue, Jul 1
Southwest Logo
8:25 pm - 11:00 pmBWI-SAT
3h 35mnonstop
Southwest Logo
3:55 pm - 8:20 pmSAT-BWI
3h 25mnonstop
$345Southwest
Find Deal
Tue, Jun 24 - Tue, Jul 1
United Airlines Logo
10:51 am - 7:52 pmBWI-SAT
10h 01m2 stops
United Airlines Logo
5:30 am - 12:00 pmSAT-BWI
5h 30m1 stop
$380United Airlines
Find Deal
Mon, Aug 25 - Thu, Aug 28
Delta Logo
1:52 pm - 8:26 pmBWI-SAT
7h 34m1 stop
Delta Logo
4:15 pm - 12:48 amSAT-BWI
7h 33m1 stop
$389Delta
Find Deal
Tue, May 13 - Fri, May 23
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 convenient light rail to downtown Baltimore, located just outside the terminal by Concourse E, making it easy and affordable to reach the city.

Read more about BWIby Harriet Baskas
SAT

The #5 VIA bus connects SAT to downtown San Antonio in about 30 minutes, offering a cost-effective and spacious option for travelers.

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 Thursday 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 Tuesdays.

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 $501 and $469 respectively.

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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 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 1% 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 $166 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, Alaska Airlines, and Hawaiian 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 $472 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 $464 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 $122 or less one-way and $337 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?

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, Spirit Airlines

Southwest, Spirit Airlines

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, Spirit Airlines

Southwest, Spirit Airlines

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

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 4294 reviews
8.2Boarding
7.6Entertainment
8.0Comfort
7.1Food
8.6Crew
Airline reviews

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

6.0 GoodDonald, Apr 2025BWI - SDF
Read more Southwest reviews

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.

Everything worked well. Crew was as entertaining as is possible on a plane flight. Southwest still has good legroom:

Crew was great - friendly and helpful with boarding - letting folks know where overhead space was available thus getting us out of the gate on time.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

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.

Everything was awful Flight attendant was condescending, rude and not helpful at all. Small outdated plane. No service, uncomfortable seats. Flight attendant was really the worst. He used hand gestures to communicate instead of words and whenever he used words he was condescending.

Several delays. Next flight was worse. Did not arrive home until 2am PT

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

Flight was late and missed connecting flight. They could have better accommodated, but instead did an overnight and had to arrive the next afternoon.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The boarding experience was good; $20 for wifi per flight is uncompetitive compared to Delta, Southwest, and others, and puts American lower on my list given similar pricing.

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.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

They are very particular about size of the bag. Mine is small bag and has wheels. Bag wheel edges are bit outside of the measurements bucket. They charged $99 as carryon bagage

Boarding was not clear; no announcement about delay. My sister and kid were seated separately for me and even though there were tons of seats up front, they wouldn't let us switch.

Non-professional acting crew, Very uncomfortable seats…!! Very bad pricing with all the add-ons for seat choice, luggage fees, etc….soon you’ll charge extra for oxygen. The ticket price means Nothing because in the end, the actual amount i paid, i could have and will in the future continue to fly on a real airline…

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