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? Find the lowest prices on one-way and return tickets right here.

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 November.

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.

Washington D.C. to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundRs21,320
Cheapest month to flyNovember
Average flight time3 hrs, 48 mins
Most popular airlineSouthwest Airlines
Average flights per week64

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

The best price we found for a return flight from Washington D.C. to San Antonio International is Rs40,425. 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 47 minutes is the average flight time from Washington D.C. to San Antonio International.
Southwest Airlines, United and Air Canada fly direct from Washington D.C. to San Antonio International.
As of September 2025, there are 128 flights per week flying from Washington D.C. to San Antonio International.
The cheapest month to fly from Washington D.C. to San Antonio International is usually September.
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, 29 September 2025.
Yes – the average flight time is 3 hours and 47 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.

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

  • Your travel plans take shape at one of Washington DC's main airports, Ronald Reagan National Airport (DCA) or Washington Dulles International Airport (IAD). Explore the options for booking a flight from Washington DC to San Antonio International Airport (SAT) departing from either of these bases.

  • Around 3 hours 35 minutes is the usual time it takes for a direct Washington DC to San Antonio International Airport flight.

  • The timezone in San Antonio is UTC-5, which is one hour behind Washington DC. San Antonio International Airport is located in San Antonio.

  • You can pick from 7 direct flights a week between Ronald Reagan National Airport (DCA) and San Antonio International Airport (SAT). This is the busiest route, with American Airlines offering a 7:45pm departure from DCA to SAT.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport with enough time to board your flight from Washington DC to SAT.

  • In peak travel periods, expect extended wait times and show up earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international trips.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • You can take a direct flight from Washington DC to San Antonio International Airport (SAT) departing from Ronald Reagan National Airport (DCA).

  • When leaving from DCA, you can catch a direct flight from Washington DC to San Antonio International Airport with American Airlines.

  • The majority of travellers prefer to book seats with American Airlines between DCA and SAT.

  • The journey from central Washington DC to DCA takes around 45 minutes on public transport. If you ride-share, drive or grab a cab, you'll cover the 8 kilometres in 15 minutes or so, depending on traffic conditions.

  • Catching an early flight from Washington DC to San Antonio International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these stays near Ronald Reagan National Airport:

  • 76.44% of flights departing from Ronald Reagan National Airport make it to their destination on schedule.

  • DCA's address is 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Planning to leave from Washington Dulles International Airport (IAD)? Direct Washington DC to San Antonio International Airport (SAT) flight tickets can be booked from here.

  • From IAD, direct flights from Washington DC to SAT can be booked with United Airlines.

  • United Airlines is the most popular choice for travellers flying from IAD to SAT.

  • If you're looking for a consistently punctual carrier, go with United Airlines. It has an exceptional on-time performance of 81.82% for flights between Washington Dulles International Airport and San Antonio International Airport.

  • On public transport, you can travel from central Washington DC to IAD in around 1 hour 10 minutes. The airport is roughly 56 kilometres away, and making the trip by car will take approximately 50 minutes.

  • Want to treat yourself to an extra night away before boarding your Washington DC to SAT flight? Unwind in a hotel near Washington Dulles International Airport before your adventure officially starts. These stays are calling your name:

  • Washington Dulles International Airport has an on-time performance of 74.39%. This figure reflects how often flights that depart from this airport make it to their destination on time.

  • You'll find IAD at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Begin your journey at Baltimore/Wash International Thurgood Marshall Airport (BWI) and fly straight to your destination without layovers. You can book direct flights from Washington DC to San Antonio International Airport from here.

  • Set off from BWI with Southwest Airlines. This trusted airline offers direct Washington DC to SAT flight tickets.

  • The majority of travellers prefer to fly with Southwest Airlines from BWI to SAT.

  • The carrier with the best punctuality score on this route is Southwest Airlines. Its services arrive as scheduled 74.22% of the time.

  • The journey time to BWI from the centre of Washington DC is around 1 hour 30 minutes on public transport. If you're in a car, it'll take you about 50 minutes to cover the 48 kilometres or so.

  • Make catching an early Washington DC to San Antonio International Airport flight one of the easiest parts of your trip. Stay at one of these accommodation options near Baltimore/Wash International Thurgood Marshall Airport and head to your check-in counter feeling relaxed and unhurried:

  • Flights that depart from BWI reach their destination as scheduled 77.13% of the time.

About San Antonio International Airport (SAT)

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

  • San Antonio International Airport to central San Antonio is around 13 kilometres. If you're getting a cab or renting a car, plan ahead to make your trip as smooth as possible. Journey times vary depending on the time of day and traffic conditions.

  • Travelling by public transport typically takes 1 hour 30 minutes.

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

  • Rs21,159 is currently the best price for a one-way ticket from Washington DC to San Antonio International Airport. Return flights start from Rs40,120. These fares can change based on availability.

  • To pick up cheap flights from Washington DC to SAT, book in advance. Airlines generally offer lower prices when tickets are first released.

  • 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 across each month and then choose the cheapest day.

  • Locking in a cheap flight ticket from Washington DC to SAT is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as the price has dropped.

  • Filters make it easier to scoop up a deal on your flight from Washington DC to San Antonio International Airport. Pick the airlines, flight times and number of stops that line up with your plans. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

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

  • It's time to work out your travel dates for your flight from Washington DC to San Antonio International Airport (SAT). July is the busiest month to visit San Antonio. If you like your getaways a little more chill, go in April.

  • The warmest month in San Antonio is August, with temperatures ranging between 23ºC and 40ºC. Book your Washington DC to SAT flight ticket then if this is the type of weather you enjoy.

  • Search for cheap tickets from Washington DC to San Antonio International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 3ºC and 20ºC.

More about San Antonio

  • After booking your flight from Washington DC to San Antonio International Airport, find a hotel that's got location and comfort covered. Make one of these accommodation options your base for exploring San Antonio:

  • Your San Antonio trip won't be complete without checking out the sights. Highlights you can't miss include The San Antonio River Walk, San Antonio River walk and Alamo Plaza.

Explore more of the United States

  • San Antonio has loads to offer, but there are so many other corners of the United States you'll want to see. Around 105 kilometres north-east of San Antonio, a visit to Austin will keep you on the move. Start with attractions like Texas State Capitol, Central Park and Austin Museum of Art, Downtown.

  • Around 225 kilometres south-east of San Antonio, Corpus Christi is another essential stop in the United States. Get a taste of what this destination has to offer at Texas State Aquarium, Bayfront Park and Corpus Christi Cathedral.

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