$164 Find Cheap Flights from Washington Dulles Airport to San Antonio - Compare and Save

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.

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

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).

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 travelers should check the fare details before booking.

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

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $285 round-trip via Chicago O'Hare Intl (ORD), compared to $404 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 MAX 8 family is used most often on this route, operated mainly by United Airlines and Southwest. Other aircraft seen on the route include Boeing 737-700 variants.

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

• Atlanta Hartsfield-Jackson (ATL) - 50% of one-stop connections
• Denver Intl (DEN) - 21% of one-stop connections
• Houston George Bush Intcntl (IAH) - 13% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 5% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 28% on the Washington, D.C. Dulles Intl Airport to San Antonio route. Thursday is the cheapest departure day at $368 round-trip on average, while Monday is the most expensive at $508, a difference of $140. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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%.

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.

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 12:01 pm
• Latest: departs at 6:00 pm and lands at 9:46 pm.

The flight takes about 3h 46m.

Last-minute fares on this route - booked within 2 weeks of departure - run 28% above the route average of $399. Book 23 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. Dulles Intl Airport to San Antonio takes 3h 46m, 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.

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 $202, which is 29% below the typical average for this route.

Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time at 5h 26m, compared with 5h 32m via Charlotte Douglas (CLT) and 5h 47m via Dallas/Fort Worth (DFW).

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.

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

Round-trip flights from Washington, D.C. Dulles Intl Airport to San Antonio range from $324 to $513, with an average of $399 over the past 12 months. Anything below $324 counts as a good deal.