Cheap flights from San Antonio to Washington, D.C.

Flights overview

Useful information for finding cheap flights from San Antonio to Washington, D.C. and booking your next trip
Cheapest round-trip flights $190
Frontier 1 stop 20 hr Sat, May 2 — Mon, May 11
The cheapest round-trip flight from San Antonio to Washington, D.C. is currently $190
Cheapest one-way flight $101
Frontier 1 stop 20 hr Sat, Apr 18
The cheapest one-way flight from San Antonio to Washington, D.C. is currently $101
Cheapest nonstop flights $289
American Nonstop 4 hr Thu, Apr 23 — Wed, Apr 29
The cheapest nonstop round-trip flight from San Antonio to Washington, D.C. is currently $289
Last-minute weekend getaway $380
Frontier 1 stop 10 hr Thu, Mar 12 — Sun, Mar 15
The cheapest last-minute weekend getaway from San Antonio to Washington, D.C. is currently $380
Cheapest business class flights $428
Frontier 1 stop 20 hr Sat, May 2 — Mon, May 11
The cheapest business class round-trip flight from San Antonio to Washington, D.C. is currently $428
Fastest flight 3 hr 5 min The fastest nonstop flight from San Antonio to Washington, D.C. takes 3 hr 5 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from San Antonio to Washington, D.C. is typically May. The most expensive month to fly is typically March.
May
Cheapest
Typical prices: $150–245
March
Most expensive
Typical prices: $225–375

Popular airlines from San Antonio to Washington, D.C.

  • Southwest
    Nonstop
    from $284
    Typical price: $265–455
    12 weekly nonstop flights
    SAT - BWI Every day
    1916 weekly connecting flights
    SAT - BWI, DCA, IAD Every day
  • United
    Nonstop
    from $289
    Typical price: $245–395
    14 weekly nonstop flights
    SAT - IAD Every day
    951 weekly connecting flights
    SAT - BWI, DCA, IAD Every day
  • American
    Nonstop
    from $289
    Typical price: $245–410
    7 weekly nonstop flights
    SAT - DCA Every day
    1135 weekly connecting flights
    SAT - BWI, DCA, IAD Every day
  • Delta
    from $309
    Typical price: $255–490
    829 weekly connecting flights
    SAT - BWI, DCA, IAD Every day
  • Frontier
    from $190
    Typical price: $200–445
    52 weekly connecting flights
    SAT - BWI, DCA, IAD Every day
  • Alaska
    from $480
    Typical price: $530–1,200
    29 weekly connecting flights
    SAT - BWI, DCA, IAD Every day

Popular airports near San Antonio

  • San Antonio International Airport (SAT)
    San Antonio United States 19 min 7 mi
  • Austin-Bergstrom International Airport (AUS)
    Austin United States 1 hr 22 min 72 mi
  • George Bush Intercontinental Airport (IAH)
    Houston United States 3 hr 10 min 193 mi
  • William P. Hobby Airport (HOU)
    Houston United States 3 hr 15 min 193 mi

Popular airports near Washington, D.C.

  • Ronald Reagan Washington National Airport (DCA)
    Washington United States 17 min 4 mi
  • Dulles International Airport (IAD)
    Washington United States 54 min 22 mi
  • Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI)
    Baltimore United States 47 min 27 mi
  • Philadelphia International Airport (PHL)
    Philadelphia United States 2 hr 18 min 116 mi

Frequently asked questions about flying from San Antonio to Washington, D.C.

The cheapest flights from San Antonio to Washington, D.C. are usually in May. Typical ticket prices in May range from $150 to $245.
The cheapest round-trip flight from San Antonio to Washington, D.C. recently found on Google Flights was with Frontier from $190. The cheapest one-way flight was with Frontier from $101.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from San Antonio to Washington, D.C. is $284, flying from May 7 to May 13.
  • The cheapest United flight from San Antonio to Washington, D.C. is $289, flying from Apr 30 to May 6.
  • The cheapest American flight from San Antonio to Washington, D.C. is $289, flying from Apr 23 to Apr 29.
  • The cheapest Delta flight from San Antonio to Washington, D.C. is $309, flying from May 7 to May 13.
  • The cheapest Frontier flight from San Antonio to Washington, D.C. is $190, flying from May 2 to May 11.
  • The cheapest Alaska flight from San Antonio to Washington, D.C. is $480, flying from Apr 25 to May 2.
The cheapest round-trip flight from San Antonio to Washington, D.C. starts at $190 from Sat, May 2 to Mon, May 11. The cheapest one-way flight starts at $101 and departs on Sat, Apr 18.
3 hr 5 min is the shortest flight time from San Antonio to Washington, D.C..
Mid-Mar–Jun is Washington DC's busiest time, with many people timing their visits to coincide with cherry blossom season (late Mar–mid Apr). Washington DC’s conference centers and hotels also bustle while Congress is in session (Sep–Nov and mid-Jan–Jun). Jul–Aug tend to be hot and humid, while snowfall can vary widely in winter. The city’s most popular events are the annual Cherry Blossom Festival in spring, the 4th of July celebration in summer, and the lighting of the National Christmas Tree in winter.
It's easy to use Google Flights to find the cheapest days to fly from San Antonio to Washington, D.C..
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from San Antonio to Washington, D.C. really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Antonio to Washington, D.C..

In terms of nonstop flights, United is the most popular. United offers 14 nonstop flights and 951 connecting flights per week. United flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

In terms of flights, Southwest is the most popular. Southwest offers 12 nonstop flights and 1,916 connecting flights per week. Southwest flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

Other popular airlines flying from San Antonio to Washington, D.C. are:
  • American offers 7 nonstop flights and 1,135 connecting flights per week. American flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Delta offers 829 connecting flights per week. Delta flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Frontier offers 52 connecting flights per week. Frontier flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
  • Alaska offers 29 connecting flights per week. Alaska flies from San Antonio International Airport (SAT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
The number of connecting flights refers to distinct flights with at least one stop between San Antonio and Washington, D.C..
The cheapest round-trip flight from San Antonio to Washington, D.C. recently found on Google Flights was with Frontier from $190. The cheapest one-way flight was with Frontier from $101.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from San Antonio to Washington, D.C. is $284, flying from May 7 to May 13.
  • The cheapest United flight from San Antonio to Washington, D.C. is $289, flying from Apr 30 to May 6.
  • The cheapest American flight from San Antonio to Washington, D.C. is $289, flying from Apr 23 to Apr 29.
  • The cheapest Delta flight from San Antonio to Washington, D.C. is $309, flying from May 7 to May 13.
  • The cheapest Frontier flight from San Antonio to Washington, D.C. is $190, flying from May 2 to May 11.
  • The cheapest Alaska flight from San Antonio to Washington, D.C. is $480, flying from Apr 25 to May 2.
Southwest, American and United fly direct from San Antonio to Washington, D.C..
  • There are 12 Southwest direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
  • There are 14 United direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
  • There are 7 American direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between San Antonio and Washington, D.C. at price $380 is offered by Frontier from Thu, Mar 12 to Sun, Mar 15.
Southwest, American and United fly direct from San Antonio to Washington, D.C..
  • There are 12 Southwest direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
  • There are 14 United direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
  • There are 7 American direct flights from San Antonio to Washington, D.C. per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from San Antonio to Washington, D.C. on a daily basis.
The cheapest direct (nonstop) round-trip flights between San Antonio and Washington, D.C. start at $289 from Thu, Apr 23 to Wed, Apr 29 with American.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Antonio to Washington, D.C., just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between San Antonio and Washington, D.C. start at $428 from Sat, May 2 to Mon, May 11 with Frontier.
The cheapest economy class round-trip flights between San Antonio and Washington, D.C. start at $190 from Sat, May 2 to Mon, May 11.
To book business class trips from San Antonio to Washington, D.C., look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between San Antonio and Washington, D.C. starts at $380 from Thu, Mar 12 to Sun, Mar 15 with Frontier.
The cheapest last-minute deal between San Antonio and Washington, D.C. at price $380 is offered by Frontier from Thu, Mar 12 to Sun, Mar 15.
To find last-minute flight deals from San Antonio to Washington, D.C., start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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