$146 Find Cheap Flights from Washington Dulles Airport to San Antonio - Compare and Save

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to San Antonio:

• Earliest: departs at 8:15 am and lands at 12:11 pm
• Latest: departs at 6:00 pm and lands at 9:56 pm.

The flight takes about 3h 56m.

Two cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to San Antonio:

• Economy Class
• First Class

A nonstop flight from Washington, D.C. Dulles Intl Airport to San Antonio takes 3h 56m, covering 1,360 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Washington, D.C. Dulles Intl Airport to San Antonio range from $329 to $528, with an average of $411 over the past 12 months. Anything below $329 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 31% above the $411 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $268 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $417 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-700 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to San Antonio flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $291 to $1,974. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Washington, D.C. Dulles Intl Airport to San Antonio are currently lower than usual. Average one-way flight prices are about $152, which is 48% below the typical average for this route.

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:

• Europcar
• Fox
• Dollar
• Hertz
• Alamo

Flights from Washington, D.C. Dulles Intl Airport to San Antonio usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at San Antonio (SAT).

One-stop flights from Washington, D.C. Dulles Intl Airport to San Antonio most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 46% of one-stop connections
• Denver Intl (DEN) - 17% of one-stop connections
• Houston George Bush Intcntl (IAH) - 13% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections

Yes. Flexible dates can save you up to 29% on flights from Washington, D.C. Dulles Intl Airport to San Antonio. Thursday is the cheapest departure day at $382 round-trip on average, while Monday is the most expensive at $534, a difference of $152.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only United Airlines operates flights between Washington, D.C. Dulles Intl Airport and San Antonio.

Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time at 5h 27m, compared with 5h 35m via Charlotte Douglas (CLT) and 5h 49m via Detroit Metropolitan Wayne County (DTW).

San Antonio is 1 hour behind Washington, D.C. Dulles Intl Airport (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Alamodome. These are among the most viewed places in San Antonio on KAYAK.

Among airlines operating Washington, D.C. Dulles Intl Airport to San Antonio flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.