Cheap Flights from Washington D.C. to San Antonio International

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Flight deals from Washington D.C. to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to San Antonio International Airport? If you want to travel next month, return fares start from Rs66,318. Find the lowest prices on one-way and return tickets right here.

San Antonio.Rs34,528 per passenger.Departing Thu, 15 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Thu, 15 Oct, arriving in San Antonio International.Price includes taxes and charges.From Rs34,528, select.

San Antonio.Rs34,702 per passenger.Departing Wed, 4 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 4 Nov, arriving in San Antonio International.Price includes taxes and charges.From Rs34,702, select.

San Antonio.Rs34,705 per passenger.Departing Sat, 29 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sat, 29 Aug, arriving in San Antonio International.Price includes taxes and charges.From Rs34,705, select.

San Antonio.Rs34,708 per passenger.Departing Wed, 30 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 30 Sep, arriving in San Antonio International.Price includes taxes and charges.From Rs34,708, select.

San Antonio.Rs37,139 per passenger.Departing Mon, 23 Nov.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Mon, 23 Nov, arriving in San Antonio International.Price includes taxes and charges.From Rs37,139, select.

San Antonio.Rs39,949 per passenger.Departing Mon, 21 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Mon, 21 Dec, arriving in San Antonio International.Price includes taxes and charges.From Rs39,949, select.

San Antonio.Rs40,060 per passenger.Departing Wed, 20 Jan.One-way flight with United.Outbound indirect flight with United, departs from Washington Dulles on Wed, 20 Jan, arriving in San Antonio International.Price includes taxes and charges.From Rs40,060, select.

San Antonio.Rs41,113 per passenger.Departing Tue, 29 Sep.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 29 Sep, arriving in San Antonio International.Price includes taxes and charges.From Rs41,113, select.

San Antonio.Rs41,113 per passenger.Departing Thu, 15 Oct.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 15 Oct, arriving in San Antonio International.Price includes taxes and charges.From Rs41,113, select.

San Antonio.Rs41,227 per passenger.Departing Mon, 17 Aug.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Mon, 17 Aug, arriving in San Antonio International.Price includes taxes and charges.From Rs41,227, select.

San Antonio.Rs46,806 per passenger.Departing Tue, 1 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 1 Dec, arriving in San Antonio International.Price includes taxes and charges.From Rs46,806, select.

San Antonio.Rs49,576 per passenger.Departing Thu, 14 Jan.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 14 Jan, arriving in San Antonio International.Price includes taxes and charges.From Rs49,576, select.

San Antonio.Rs50,748 per passenger.Departing Wed, 24 Mar.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Wed, 24 Mar, arriving in San Antonio International.Price includes taxes and charges.From Rs50,748, select.

San Antonio.Rs54,918 per passenger.Departing Tue, 28 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Tue, 28 Jul, arriving in San Antonio International.Price includes taxes and charges.From Rs54,918, select.

San Antonio.Rs60,292 per passenger.Departing Wed, 19 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 19 May, arriving in San Antonio International.Price includes taxes and charges.From Rs60,292, select.

San Antonio.Rs60,333 per passenger.Departing Wed, 24 Mar.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 24 Mar, arriving in San Antonio International.Price includes taxes and charges.From Rs60,333, select.

Find the cheapest month to fly from Washington D.C. to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to San Antonio International flights are currently cheapest in October.

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Direct flights from Washington D.C. to San Antonio International

Washington D.C. to San Antonio International: Alternative routes

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

San Antonio International

13km from central San Antonio

ClosestCheapest

from Rs34,528

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Washington D.C. to San Antonio: Flight information

The things to know before you go.

Cheapest flight found	Rs34,528
Cheapest month to fly	October
Average flight time	3 hrs, 48 mins
Most popular airline	Southwest Airlines
Average flights per week	72

Finding cheap flights from Washington D.C. to San Antonio International: Frequently asked questions

How much are return flights from Washington D.C. to San Antonio International?

The best price we found for a return flight from Washington D.C. to San Antonio International is Rs66,318. 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.

How long does it take to fly from Washington D.C. to San Antonio International?

3 hours and 47 minutes is the average flight time from Washington D.C. to San Antonio International.

Which airlines fly direct from Washington D.C. to San Antonio International?

Southwest Airlines, United and Air Canada fly direct from Washington D.C. to San Antonio International.

How many flights are there a week from Washington D.C. to San Antonio International?

As of July 2026, there are 72 flights per week flying from Washington D.C. to San Antonio International.

When is the cheapest time to fly from Washington D.C. to San Antonio International?

The cheapest month to fly from Washington D.C. to San Antonio International is usually August.

Which upcoming date is cheapest to fly from Washington D.C. to San Antonio International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to San Antonio International Airport on Monday, 17 August 2026.

Can I get a direct flight from Washington D.C. to San Antonio International Airport?

Yes – the average flight time is 3 hours and 47 minutes.

How can I find the best flight deal to San Antonio International?

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.

When is the best time to book flights to San Antonio?

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.

Flying from Washington DC to San Antonio International Airport (SAT): What you need to know

Begin planning your trip by looking up the best place to catch your flight from Washington DC to San Antonio International Airport (SAT). Explore the options for leaving from Ronald Reagan Washington National Airport (DCA) or Washington Dulles International Airport (IAD), the city's main airports.
Book a direct Washington DC to San Antonio International Airport flight and you'll be in the air for around 3 hours 40 minutes.
San Antonio is one hour behind Washington DC. San Antonio International Airport is located in San Antonio, which is in the UTC-6 timezone.
Ronald Reagan Washington National Airport (DCA) to San Antonio International Airport (SAT) is the most popular route, with 7 direct services every week. You can get from DCA to SAT on American Airlines's 7:45pm departure.
Give yourself enough time to make your flight from Washington DC to SAT. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.
With more people on the move during busy periods like July, be at your terminal even earlier. Two hours for domestic flights and as much as four for international journeys will allow for extra wait times. Remember things also get busy during major holidays like Christmas and local events or festivals.

Airports in Washington DC

Ronald Reagan Washington National Airport (DCA)

You can hop on a direct flight from Washington DC to San Antonio International Airport (SAT) out of Ronald Reagan Washington National Airport (DCA).
When leaving from DCA, you can catch a direct flight from Washington DC to San Antonio International Airport with American Airlines.
American Airlines is the most frequently booked airline offering flights from DCA to SAT.
American Airlines is the most punctual carrier operating on this route, with 78.33% of its services arriving as planned.
DCA is around 6 kilometres from central Washington DC. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 10 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the trip time to be around 25 minutes.
Planning to catch an early flight from Washington DC to San Antonio International Airport? Avoid rushing to the terminal (and get a little more snooze time) by picking one of these stays close to Ronald Reagan Washington National Airport:
71% of flights leaving from Ronald Reagan Washington National Airport touch down at their destination on time.
You'll find DCA at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

Thinking of flying out of Washington Dulles International Airport (IAD)? Direct Washington DC to San Antonio International Airport (SAT) plane tickets can be booked from here.
United Airlines operates direct flights from Washington DC to SAT leaving from IAD. Book your favourite seat and arrive at your destination in a single hop.
United is the go-to airline for bookings on the IAD to SAT route.
Book with United if you're looking for punctuality. Its flights between Washington Dulles International Airport and San Antonio International Airport land as scheduled 85.55% of the time.
IAD is about 40 kilometres from central Washington DC. It takes 45 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 1 hour 10 minutes.
Catching the earliest flight? Think about staying at one of these accommodation options near Washington Dulles International Airport the day before your Washington DC to SAT flight:
Washington Dulles International Airport has an on-time performance of 77%. This figure sheds light on how often flights that take off from this airport land at their destination on schedule.
IAD is located at 1 Saarinen Circle.

Baltimore Washington International Airport (BWI)

Begin your travels at Baltimore Washington International Airport (BWI) and head straight to your destination without any layovers. You can book direct flights from Washington DC to San Antonio International Airport out of here.
Southwest Airlines is one popular carrier that offers direct Washington DC to SAT plane tickets from BWI.
The preferred choice for passengers flying between BWI and SAT is Southwest Airlines.
Southwest Airlines is the most punctual carrier operating on this route, with 75.0% of its services landing on schedule.
BWI is around 48 kilometres from central Washington DC. The drive from the city centre to the airport takes about 40 minutes. If you're thinking about taking public transport, expect a journey of around 50 minutes.
Take the 'what ifs' out of departure day — stay close to Baltimore Washington International Airport and know you'll be at the terminal with time to spare. Get settled at one of these hotels the day before if you're catching an early Washington DC to San Antonio International Airport flight:
The on-time performance record of BWI is 77%. In other words, that's how frequently flights from this airport arrive within the expected time frame.

About San Antonio International Airport (SAT)

The last thing you need is a long journey to your hotel if you're getting in late on a flight from Washington DC to San Antonio International Airport. Stay at one of these accommodation options near SAT instead:
For the lowest price, reserve your vehicle around one week in advance of your Washington DC to San Antonio International Airport flight.
The address for SAT is 9800 Airport Boulevard.

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

San Antonio International Airport is around 14 kilometres from central San Antonio. It takes around 20 minutes or so to get to the city by car.
It typically takes 50 minutes if you're using public transport.

How to find the cheapest flights from Washington DC to San Antonio International Airport (SAT)

At the moment, Rs34,528 is the lowest price we've found for a one-way ticket from Washington DC to San Antonio International Airport. The cheapest price for a return flight is Rs66,318. Remember fares may change due to availability at the time of booking.
Booking early is often the key to finding a cheap flight from Washington DC to SAT. Airlines adjust prices based on demand, so the closer you get to departure, the more it could cost you.
Affordable Washington DC to San Antonio International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' search tool to compare fares throughout the month and then choose the cheapest day.
Be the first to know about deals for plane tickets from Washington DC to SAT by setting up a Price Alert. We'll send you an email or notification through the app when prices go down.
Filters make it easier to find a bargain for your flight from Washington DC to San Antonio International Airport. Choose the departure times, carriers and stops that make sense for you. Then sort the results by 'Cheapest' to find the best price quickly.

The best time to fly from Washington DC to San Antonio International Airport (SAT)

July is the most popular month for flights from Washington DC to San Antonio International Airport (SAT). Visit San Antonio in December if you prefer a quieter experience.
Lock in a Washington DC to SAT plane ticket departing in August if you want to visit the city during its warmest month. You can expect temperatures in San Antonio to range from 24ºC to 40ºC.
If you like travelling in cooler conditions, look for a cheap ticket from Washington DC to San Antonio International Airport in January when temperatures are between 4ºC and 20ºC.

More about San Antonio

When it comes to looking for somewhere to lay your head, you'll find the best places to stay in San Antonio right here. Explore these hotels as soon as you've locked in your flight from Washington DC to San Antonio International Airport:
San Antonio River Walk and San Antonio River walk are a couple of top attractions to add to your San Antonio must-do list. Keep the sightseeing going at Alamo Plaza.

Explore more of the United States

San Antonio is always a good idea, but there are so many other corners of the United States just waiting to be discovered. Around 105 kilometres northeast of San Antonio, a visit to Austin will keep your itinerary busy. Start with popular sights like Texas State Capitol, Austin Museum of Art, Downtown and 360 Bridge.
Corpus Christi is another essential stop in the United States and is around 225 kilometres southeast of San Antonio. No trip is complete without visiting USS LEXINGTON, Texas State Aquarium and Bayfront Park.