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

Frontier, at $103, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include Southwest and Spirit Airlines. You may be able to fly from San Antonio to Washington, D.C. for 69% 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 $53 on Frontier. Other airlines that offer cheap prices include Southwest from $78 and Spirit Airlines from $86 one-way.

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

Booking 35 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, August is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $309). Flying from San Antonio to Washington, D.C. in July is currently the most expensive (average of $345). 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 Thursday evenings when fares are most often at their lowest. Wednesday afternoons 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 Wednesday, which is when the least amount of flights are scheduled (5 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 $836, our data shows the cheapest flight currently is $158. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $210 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: Air Canada (87%), Brussels Airlines (87%), Lufthansa( 81%).

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 American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 57%.

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

To save up to 87% on this flight, we recommend booking at least 36 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Antonio to Washington, D.C. from $314 1-2 weeks out and tickets from $488 for flights departing within the next 72 hours.

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

Our data shows that June tends to be the cheapest month to fly to Washington, D.C. from San Antonio. Users have commonly found prices around $333 for the month, but tickets can be as low as $110. Due to multiple factors, prepare for potentially higher prices in November.

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 81% on flights from San Antonio to Washington, D.C. by exploring options for tickets in the evening.

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.

$53+ Flights from San Antonio to Washington, D.C.

Round-trip from	$103 (Priceline)
One-way from	$53 (Priceline)
Popular in	November
Cheapest in	June
Average price	$296
Good round-trip deal	$228 or less
Good one-way deal	$133 or less

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$76	Average$166	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$107	Average$222	FlexibilityNo cancel fee	On-time65%
Southwest	Cheapest$204	Average$425	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$208	Average$352	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$216	Average$366	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$239	Average$388	FlexibilityNo cancel fee	On-time69%

$53+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in June or May, booked 35 days in advance, depart on a Thursday or Friday and return on a Wednesday

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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 junio 30, 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 junio 30, 2025.

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

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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.

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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 June 27, 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 junio 30, 2025.

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

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.?

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.?

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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 junio 30, 2025.