Skyscanner

Cheap Flights from Baltimore Washington International to San Antonio International

Travellers and cabin class

Compare Baltimore Washington International to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

Book the best San Antonio International fare with no extra fees

Flight deals from Baltimore Washington International to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International to San Antonio International? Find the lowest prices on one-way and return tickets right here.
San Antonio.92 € per passenger.Departing Fri, 30 May, returning Mon, 2 Jun.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Fri, 30 May, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Mon, 2 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 92 €, select.
San Antonio.98 € per passenger.Departing Mon, 2 Jun, returning Mon, 9 Jun.Return flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departs from Baltimore Washington International on Mon, 2 Jun, arriving in San Antonio International.Inbound direct flight with Spirit Airlines departs from San Antonio International on Mon, 9 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From 98 €, select.
San Antonio.130 € per passenger.Departing Thu, 29 May, returning Sat, 31 May.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Thu, 29 May, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Sat, 31 May, arriving in Baltimore Washington International.Price includes taxes and charges.From 130 €, select.
San Antonio.141 € per passenger.Departing Mon, 19 May, returning Fri, 30 May.Return flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departs from Baltimore Washington International on Mon, 19 May, arriving in San Antonio International.Inbound direct flight with Spirit Airlines departs from San Antonio International on Fri, 30 May, arriving in Baltimore Washington International.Price includes taxes and charges.From 141 €, select.
San Antonio.158 € per passenger.Departing Wed, 17 Sep, returning Fri, 19 Sep.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Wed, 17 Sep, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Fri, 19 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 158 €, select.
San Antonio.160 € per passenger.Departing Mon, 23 Jun, returning Tue, 8 Jul.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Mon, 23 Jun, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Tue, 8 Jul, arriving in Baltimore Washington International.Price includes taxes and charges.From 160 €, select.
San Antonio.175 € per passenger.Departing Fri, 25 Jul, returning Fri, 1 Aug.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Fri, 25 Jul, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Fri, 1 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From 175 €, select.
San Antonio.176 € per passenger.Departing Tue, 28 Oct, returning Sun, 2 Nov.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Baltimore Washington International on Tue, 28 Oct, arriving in San Antonio International.Inbound indirect flight with Spirit Airlines, departs from San Antonio International on Sun, 2 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 176 €, select.

Find the cheapest month to fly from Baltimore Washington International to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to San Antonio International flights are currently cheapest in June.
May
from 130 €
Jun
from 98 €
Jul
from 184 €
Aug
from 246 €
Sep
from 158 €
Oct
from 208 €
Nov
Find prices
Dec
from 417 €
Jan
from 414 €
Feb
from 418 €
Mar
Find prices
Apr
Find prices

Direct flights from Baltimore Washington International to San Antonio International

Baltimore Washington International to San Antonio International: Alternative routes

Compare routes from Baltimore Washington International to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

Washington D.C. to San Antonio: Flight information

The things to know before you go.
Cheapest flight found92 €
Cheapest month to flyMay
Average flight time3 hrs, 42 mins
Most popular airlineSouthwest Airlines
Average flights per week20

Finding cheap flights from Baltimore Washington International to San Antonio International: Frequently asked questions

The best price we found for a return flight from Baltimore Washington International to San Antonio International is 92 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 42 minutes is the average flight time from Baltimore Washington International to San Antonio International.
Southwest Airlines and Spirit Airlines fly direct from Baltimore Washington International to San Antonio International.
As of May 2025, there are 20 flights per week flying from Baltimore Washington International to San Antonio International.
The cheapest month to fly from Baltimore Washington International to San Antonio International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to San Antonio International Airport on Friday, 30 May 2025.
Yes – the average flight time is 3 hours and 42 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines offers the cheapest flight tickets to San Antonio International.

Travelling from Baltimore/Wash International Thurgood Marshall Airport (BWI) to San Antonio International Airport (SAT): what you need to know

  • Around 3 hours 45 minutes is how long you'll be travelling on a direct flight from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport.

  • San Antonio's timezone is UTC-5, which makes San Antonio one hour behind Washington DC.

  • Flights from BWI to SAT start from 07:10 — the first with Southwest Airlines. The latest departure is at 22:10 with Southwest Airlines. Overall, you can choose from 12 weekly Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport flights.

  • To ensure you catch your BWI to SAT flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • During popular months such as July, it's best to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during peak periods in general.

  • Jetting into San Antonio (and then exploring more of United States!) is a cinch with Southwest Airlines. This popular airline offers direct flights from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport.

  • Southwest Airlines has the highest passenger demand on this route.

  • The most punctual carrier that offers BWI to SAT flights is Southwest Airlines. Its services arrive without delay 74.22% of the time.

  • Consider adding a stopover when booking your ticket from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport. Just uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here's where you can stop between BWI and SAT:

    • Dallas Love Field Airport

    • Hartsfield-Jackson Atlanta International Airport

    • Charlotte Douglas International Airport

How to find the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport (BWI) to San Antonio International Airport (SAT)

  • The lowest price we've seen for a one-way Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport flight is 49 €. A return ticket is currently 92 €. Depending on the availability when you book, these fares may change.

  • Book six months before flying. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from BWI to SAT.

  • The cheapest month for flights from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible schedule.

  • There's no need to check back in every day to find out if fares have gone down when you create a Price Alert. We'll notify you as soon as there's a better deal on cheap flights from BWI to SAT.

  • Discover the right flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • 77.13% of flights taking off from Baltimore/Wash International Thurgood Marshall Airport arrive at their destination on time.

  • To get to Baltimore/Wash International Thurgood Marshall Airport from central Washington DC, it takes about 50 minutes if you're travelling by car. This depends on traffic though. It's approximately 48 kilometres from the airport to the city centre.

  • The journey when using public transport takes about 1 hour 30 minutes.

  • Get your holiday off to a leisurely start by staying near BWI. Whether you've booked an early flight from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport or just don't like being rushed, these hotels are the answer:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • The address for SAT is 9800 Airport Boulevard.

  • From San Antonio International Airport, San Antonio is approximately 19 kilometres away. It takes around 20 minutes to reach the centre driving.

  • Getting to the centre on public transport typically takes 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • It's time to pick your trip dates for your flight from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport. July is the busiest month to head to San Antonio. If you like a quieter vibe, go in April.

  • Book your flight from Baltimore/Wash International Thurgood Marshall Airport to San Antonio International Airport for August if you want to explore San Antonio during its warmest month. Expect temperatures of between 23ºC (73ºF) and 40ºC (104ºF).

  • Search for cheap tickets from BWI to SAT in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 3ºC (37ºF) and 20ºC (68ºF) on average.

Explore more of United States

  • Houston is just one of the many places in United States waiting to be explored after you've experienced San Antonio. Around 306 kilometres away to the east, top sights here include The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • Dallas is another must-experience destination in United States and is around 402 kilometres north-east of San Antonio. No journey is complete without experiencing Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Plan the rest of your trip from Washington D.C. to San Antonio

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.