$108 Find Cheap Flights from San Antonio to Washington, D.C. - Compare and Save

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

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

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

2 airlines operate flights between San Antonio and Washington, D.C.. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flights from San Antonio to Washington, D.C. usually depart from San Antonio (SAT) and may arrive at several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

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
• American Airlines: a cabin bag and a checked bag in Business Class
• JetBlue: a cabin bag in Economy Class class

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

Three cabin classes are available on flights from San Antonio to Washington, D.C.:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $282 round-trip via Chicago Midway (MDW), compared to $385 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

• Atlanta Hartsfield-Jackson (ATL) - 30% of one-stop connections
• Houston George Bush Intcntl (IAH) - 23% of one-stop connections
• Denver Intl (DEN) - 13% of one-stop connections
• Dallas/Fort Worth (DFW) - 6% 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 24% on the San Antonio to Washington, D.C. route. Thursday is the cheapest departure day at $358 round-trip on average, while Monday is the most expensive at $466, a difference of $108. 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 San Antonio to Washington, D.C. flights, with 67% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

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

• Earliest: departs at 6:00 am and lands at 9:19 am
• Latest: departs at 12:24 pm and lands at 3:43 pm.

The flight takes about 3h 19m.

Last-minute fares on this route - booked within 2 weeks of departure - run 39% above the route average of $376. Book 26 weeks before departure for the lowest fares.

A nonstop flight from San Antonio to Washington, D.C. takes 3h 19m, covering 1,379 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.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $241 to $1,683. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from San Antonio to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $135, which is 51% below the typical average for this route.

Flying via Houston Hobby (HOU) gives the shortest average 1-stop total travel time at 5h 18m, compared with 5h 19m via Dallas Love Field (DAL) and 5h 28m via Nashville Intl (BNA).

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

Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Washington, D.C. Reagan-National Airport (DCA) — daily rates from around $23:

• Sixt
• Dollar
• Thrifty
• Alamo
• Budget

Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

• Dollar
• Budget
• Hertz
• Sixt
• Thrifty

Round-trip flights from San Antonio to Washington, D.C. range from $301 to $490, with an average of $376 over the past 12 months. Anything below $301 counts as a good deal.

Two airlines offer in-flight Wi-Fi on San Antonio to Washington, D.C. flights:

• American Airlines
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.