How much does it cost to fly round-trip from San Antonio to Washington, D.C.?

Airfare is below average for this route at the moment. San Antonio to Washington, D.C. flights typically cost between $269 and $556 in January. The cheapest round-trip price found within the last 3 days was $134 on Frontier (Jan 8-Jan 11).

How long is the flight from San Antonio to Washington, D.C.?

A quick flight from San Antonio to Washington, D.C. can take about 3h 11m. Frontier provides one of the quickest options available for as low as $249. San Antonio and Washington, D.C. are separated by a distance of 1360 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?

Delta, at $177, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include Southwest and American Airlines. You may be able to fly from San Antonio to Washington, D.C. for 45% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from San Antonio to Washington, D.C. one-way?

One-way options have recently been found by users for as low as $57 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $98 and Southwest from $135 one-way.

How far ahead should I book a flight from San Antonio to Washington, D.C.?

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

Currently, October is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $78). Flying from San Antonio to Washington, D.C. in March is currently the most expensive (average of $170). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from San Antonio to Washington, D.C.?

Travelers seeking maximum savings on their San Antonio to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Antonio to Washington, D.C.

The most flights from SAT to WAS are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 on average).

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from San Antonio to Washington, D.C.?

When deciding which route to take from San Antonio to Washington, D.C. consider San Antonio - Washington, D.C. Dulles Intl, San Antonio - Baltimore/Washington or San Antonio - Washington, D.C. Reagan-National as they are the most popular.

What are the cheapest flights from San Antonio to Washington, D.C.?

While on average a flight from San Antonio to Washington, D.C. is generally $828, our data shows the cheapest flight currently is $139. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $185 for that flight.

What are the most reliable airlines from San Antonio to Washington, D.C.?

Before booking your flight to Washington, D.C. from San Antonio, check out the most reliable airlines to get you to your destination on time: Brussels Airlines (97%), Air Canada (93%), United Airlines( 93%).

What are the most popular airlines that fly from San Antonio to Washington, D.C.?

The most popular airlines flying from San Antonio to Washington, D.C. are United Airlines, American Airlines and Delta. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from SAT to WAS?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 44% on flights from San Antonio to Washington, D.C. by exploring options for tickets in the evening.

Most accurate provider : When it comes to deals on San Antonio-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from San Antonio to Washington, D.C.?

Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to Washington, D.C. from San Antonio. Booking flights from San Antonio (SAT) to Washington, D.C. should be relatively easy as there are 7 daily outbound flights to Washington, D.C. from 6 different airlines.

Can I find deals for flights from San Antonio to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on San Antonio to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Antonio to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Washington, D.C..

Can I find deals for business class flights from San Antonio to Washington, D.C.?

Yes. Cheapflights offers flight deals from San Antonio to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$57+ Flights from San Antonio to Washington, D.C.

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$134 (Frontier)
One-way from	$57 (Kiwi.com)
Popular in	December
Cheapest in	June
Average price	$379
Good round-trip deal	$329 or less
Good one-way deal	$216 or less

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars

For a quick departure, SAT offers a central ticketing area leading to Terminals A and B. Enjoy local dining like Smoke Shack's brisket before your flight.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$78	Average$216	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$107	Average$235	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$177	Average$348	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$194	Average$383	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$208	Average$379	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$237	Average$389	FlexibilityNo cancel fee	On-time69%

$57+ Cheap flights from San Antonio (SAT) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Washington, D.C. with Cheapflights

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in June or September, booked 82 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from San Antonio to Washington, D.C.

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Find flight deals from San Antonio to Washington, D.C.

Cheapest flights from San Antonio to Washington, D.C.Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Washington, D.C. in November.

Best time to book a flight from San Antonio to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Washington, D.C.

How far ahead should I book a flight from San Antonio to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Washington, D.C.. Price data was last updated on November 7, 2025.

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

What is the cheapest time of day to fly from SAT to WAS?

Find hourly flight availability from San Antonio to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

What is the cheapest day to fly from San Antonio to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Washington, D.C.. Price data was last updated on November 2, 2025.

Weekly flight availability from San Antonio to Washington, D.C.

How much does it cost to fly round-trip from San Antonio to Washington, D.C.?

The best insider tips for San Antonio to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Washington, D.C. trip

Airports

SAT

IAD

Our travel experts

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Antonio to Washington, D.C.?

How long is the flight from San Antonio to Washington, D.C.?

What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?

What are the cheapest airlines to fly from San Antonio to Washington, D.C. one-way?

What are the most popular routes from San Antonio to Washington, D.C.?

What are the most reliable airlines from San Antonio to Washington, D.C.?

What are the cheapest flights from San Antonio to Washington, D.C.?

Can I find deals for flights from San Antonio to Washington, D.C. that include hotel bookings?

How can I find direct flights from San Antonio to Washington, D.C.?

Can I find deals for business class flights from San Antonio to Washington, D.C.?

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

Traveling to a place near Washington, D.C.?

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Alternative routes for San Antonio to Washington, D.C.

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Cheapest flights from San Antonio to Washington, D.C.
Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.