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Cheap flights from Washington to San Antonio

40 nonstop flights a week, 6 of them today. Operated by 3 airlines, about 4h 12m in the air, 1,386 mi (2,230 km). Tickets from $116, nonstop from $223.

Flights from Washington to San Antonio

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

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Best fares from Washington to San Antonio

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $116 17 November 2026, with a connection Cheapest nonstop $223 17 November 2026, American Airlines Cheapest in the next 7 days $116 17 November, Tue Cheapest month November 2026 tickets from $116

Washington to San Antonio at a glance

flight time, from 3h 30m to 14h 40m
4h 12m
straight-line distance
1,386 mi (2,230 km)
flights a week
40
flights today
6
first and last departure
08:10 - 17:00
lowest price, with a connection, 17 November
$116
lowest nonstop price
$223
airlines
3

Washington to San Antonio flight schedule

40 flights a week, 6 today, 51 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 1152
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
11:10 San Antonio International, terminal A
4h
Sat
Boeing 737-800
WN 268
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
12:20 San Antonio International, terminal A
5h 10m
Sat
Boeing 737
UA 697
United Airlines
08:15 Ronald Reagan National, terminal 2
15:38 San Antonio International, terminal B
8h 23m
Daily
Airbus A320
WN 1569
Southwest Airlines
08:15 Baltimore/Wash International Thurgood Marshall
11:15 San Antonio International, terminal A
4h
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737-800
UA 1789
United Airlines
08:20 Washington Dulles International
11:13 San Antonio International, terminal B
3h 53m
Sun
Boeing 737
UA 1789
United Airlines
08:25 Washington Dulles International
11:18 San Antonio International, terminal B
3h 53m
Mon, Tue, Wed, Thu, Fri, Sat
Boeing 737
WN 1989
Southwest Airlines
10:00 Ronald Reagan National, terminal 1
14:25 San Antonio International, terminal A
5h 25m
Mon, Tue, Wed, Thu
WN 1569
Southwest Airlines
10:50 Baltimore/Wash International Thurgood Marshall
13:40 San Antonio International, terminal A
3h 50m
Sat
Boeing 737
WN 431
Southwest Airlines
11:40 Ronald Reagan National, terminal 1
15:55 San Antonio International, terminal A
5h 15m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737
WN 1440
Southwest Airlines
11:55 Ronald Reagan National, terminal 1
17:05 San Antonio International, terminal A
6h 10m
Sat
WN 1770
Southwest Airlines
12:05 Ronald Reagan National, terminal 1
16:20 San Antonio International, terminal A
5h 15m
Mon, Tue, Wed, Thu
WN 4585
Southwest Airlines
16:40 Baltimore/Wash International Thurgood Marshall
19:30 San Antonio International, terminal A
3h 50m
Sat
Boeing 737-800
AA 1947
American Airlines
17:00 Ronald Reagan National, terminal 2
19:59 San Antonio International
3h 59m
Sat
Airbus A319

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 1120
Southwest Airlines
06:05 Ronald Reagan National, terminal 1
10:40 San Antonio International, terminal A
5h 35m
Seasonal
Boeing 737
WN 1152
Southwest Airlines
07:00 Baltimore/Wash International Thurgood Marshall
10:05 San Antonio International, terminal A
4h 5m
Seasonal
Boeing 737
WN 987
Southwest Airlines
07:15 Baltimore/Wash International Thurgood Marshall
11:35 San Antonio International, terminal A
5h 20m
Seasonal
WN 1482
Southwest Airlines
10:40 Ronald Reagan National, terminal 1
15:00 San Antonio International, terminal A
5h 20m
Seasonal
WN 1490
Southwest Airlines
12:30 Baltimore/Wash International Thurgood Marshall
16:35 San Antonio International, terminal A
5h 5m
Seasonal
WN 4585
Southwest Airlines
13:35 Baltimore/Wash International Thurgood Marshall
16:25 San Antonio International, terminal A
3h 50m
Seasonal
Boeing 737
WN 1569
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
11:05 San Antonio International, terminal A
3h 55m
Seasonal
Boeing 737-800
AA 1947
American Airlines
13:35 Ronald Reagan National, terminal 2
16:40 San Antonio International
4h 5m
Seasonal
Airbus A319
WN 4585
Southwest Airlines
12:00 Baltimore/Wash International Thurgood Marshall
14:50 San Antonio International, terminal A
3h 50m
Seasonal
UA 6123
United Airlines
08:20 Washington Dulles International
11:28 San Antonio International, terminal B
4h 8m
Seasonal
Embraer 175
UA 697
United Airlines
08:00 Ronald Reagan National, terminal 2
15:35 San Antonio International, terminal B
8h 35m
Seasonal
Boeing 737-800
UA 1394
United Airlines
17:05 Ronald Reagan National, terminal 2
22:58 San Antonio International, terminal B
6h 53m
Seasonal
Airbus A319
UA 1789
United Airlines
08:15 Washington Dulles International
11:17 San Antonio International, terminal B
4h 2m
Seasonal
Boeing 737-900
AA 1947
American Airlines
16:59 Ronald Reagan National, terminal 2
19:43 San Antonio International
3h 44m
Seasonal
Airbus A319
WN 626
Southwest Airlines
06:10 Ronald Reagan National, terminal 1
10:55 San Antonio International, terminal A
5h 45m
Seasonal
Boeing 737
WN 559
Southwest Airlines
08:15 Baltimore/Wash International Thurgood Marshall
11:15 San Antonio International, terminal A
4h
Seasonal
Boeing 737-800
UA 1789
United Airlines
08:22 Washington Dulles International
11:24 San Antonio International, terminal B
4h 2m
Seasonal
Boeing 737-700
UA 3997
United Airlines
08:15 Washington Dulles International
11:30 San Antonio International, terminal B
4h 15m
Seasonal
Embraer 175
WN 380
Southwest Airlines
08:25 Baltimore/Wash International Thurgood Marshall
11:25 San Antonio International, terminal A
4h
Seasonal
Boeing 737-800
UA 1394
United Airlines
17:10 Ronald Reagan National, terminal 2
23:14 San Antonio International, terminal B
7h 4m
Seasonal
Boeing 737-800
WN 998
Southwest Airlines
09:10 Baltimore/Wash International Thurgood Marshall
12:05 San Antonio International, terminal A
3h 55m
Seasonal
Boeing 737-800
WN 1242
Southwest Airlines
10:40 Ronald Reagan National, terminal 1
15:05 San Antonio International, terminal A
5h 25m
Seasonal
Boeing 737
WN 4746
Southwest Airlines
12:20 Ronald Reagan National, terminal 1
16:40 San Antonio International, terminal A
5h 20m
Seasonal
Boeing 737-800
WN 998
Southwest Airlines
09:30 Baltimore/Wash International Thurgood Marshall
12:25 San Antonio International, terminal A
3h 55m
Seasonal
Boeing 737
WN 1354
Southwest Airlines
10:40 Ronald Reagan National, terminal 1
00:20 San Antonio International, terminal A
14h 40m
Seasonal
WN 1921
Southwest Airlines
14:10 Ronald Reagan National, terminal 1
18:35 San Antonio International, terminal A
5h 25m
Seasonal
Boeing 737-800
UA 1394
United Airlines
17:00 Ronald Reagan National, terminal 2
23:17 San Antonio International, terminal B
7h 17m
Seasonal
Airbus A320
AA 1947
American Airlines
17:07 Ronald Reagan National, terminal 2
19:59 San Antonio International
3h 52m
Seasonal
Airbus A319
WN 1910
Southwest Airlines
06:20 Baltimore/Wash International Thurgood Marshall
11:45 San Antonio International, terminal A
6h 25m
Seasonal
WN 369
Southwest Airlines
06:50 Ronald Reagan National, terminal 1
11:10 San Antonio International, terminal A
5h 20m
Seasonal
Boeing 737
WN 998
Southwest Airlines
11:40 Baltimore/Wash International Thurgood Marshall
14:35 San Antonio International, terminal A
3h 55m
Seasonal
Boeing 737
WN 671
Southwest Airlines
06:00 Ronald Reagan National, terminal 1
10:35 San Antonio International, terminal A
5h 35m
Seasonal
Boeing 737
WN 428
Southwest Airlines
07:15 Ronald Reagan National, terminal 1
11:30 San Antonio International, terminal A
5h 15m
Seasonal
WN 4359
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
11:05 San Antonio International, terminal A
3h 55m
Seasonal
Boeing 737
WN 671
Southwest Airlines
06:05 Ronald Reagan National, terminal 1
10:35 San Antonio International, terminal A
5h 30m
Seasonal
Boeing 737
WN 2246
Southwest Airlines
15:10 Baltimore/Wash International Thurgood Marshall
18:00 San Antonio International, terminal A
3h 50m
Seasonal
Boeing 737-800
WN 2559
Southwest Airlines
12:30 Ronald Reagan National, terminal 1
16:55 San Antonio International, terminal A
5h 25m
Seasonal
Boeing 737
WN 4660
Southwest Airlines
15:55 Ronald Reagan National, terminal 1
20:15 San Antonio International, terminal A
5h 20m
Seasonal
Boeing 737
WN 4900
Southwest Airlines
06:55 Ronald Reagan National, terminal 1
11:10 San Antonio International, terminal A
5h 15m
Seasonal
Boeing 737
WN 4198
Southwest Airlines
08:15 Baltimore/Wash International Thurgood Marshall
11:05 San Antonio International, terminal A
3h 50m
Seasonal
Boeing 737-800
WN 1478
Southwest Airlines
06:05 Ronald Reagan National, terminal 1
11:00 San Antonio International, terminal A
5h 55m
Seasonal
Boeing 737
WN 4387
Southwest Airlines
06:55 Ronald Reagan National, terminal 1
11:20 San Antonio International, terminal A
5h 25m
Seasonal
WN 3704
Southwest Airlines
09:00 Baltimore/Wash International Thurgood Marshall
11:50 San Antonio International, terminal A
3h 50m
Seasonal
WN 1093
Southwest Airlines
14:25 Baltimore/Wash International Thurgood Marshall
17:10 San Antonio International, terminal A
3h 45m
Seasonal
Boeing 737
WN 1245
Southwest Airlines
06:45 Ronald Reagan National, terminal 1
10:45 San Antonio International, terminal A
5h
Seasonal
Boeing 737
WN 4582
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
10:45 San Antonio International, terminal A
3h 35m
Seasonal
Boeing 737
WN 908
Southwest Airlines
15:25 Baltimore/Wash International Thurgood Marshall
18:00 San Antonio International, terminal A
3h 35m
Seasonal
WN 1561
Southwest Airlines
15:15 Baltimore/Wash International Thurgood Marshall
17:50 San Antonio International, terminal A
3h 35m
Seasonal
Boeing 737
WN 4582
Southwest Airlines
09:55 Baltimore/Wash International Thurgood Marshall
12:25 San Antonio International, terminal A
3h 30m
Seasonal
Boeing 737
WN 4582
Southwest Airlines
08:00 Baltimore/Wash International Thurgood Marshall
10:35 San Antonio International, terminal A
3h 35m
Seasonal
Boeing 737
WN 1242
Southwest Airlines
16:00 Ronald Reagan National, terminal 1
20:10 San Antonio International, terminal A
5h 10m
Seasonal
Boeing 737

Days of the week are taken from the schedule for the next 14 days; schedules change by season. San Antonio is 1 hour behind Washington. The search shows seat availability and the price for your date.

Airlines flying Washington to San Antonio

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines25 a week United Airlines14 a week American Airlines1 a week

Airports

Where flights from Washington to San Antonio depart and land

Departure from Washington

Ronald Reagan National closest to the centreDCA

23 flights a week, terminals 1, 2, 3 mi (5 km) from the city centre

About the airport
Baltimore/Wash International Thurgood Marshall BWI

10 flights a week, 28 mi (45 km) from the city centre

About the airport
Washington Dulles International IAD

7 flights a week, 22 mi (36 km) from the city centre

About the airport

Arrival in San Antonio

San Antonio International SAT

40 flights a week, terminals A, B, 7 mi (11 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Washington to San Antonio?
A nonstop flight takes 4 hours 12 minutes on average, from 3h 30m to 14h 40m depending on the flight.
How far is San Antonio from Washington?
1,386 mi (2,230 km) in a straight line between the cities.
Which airlines fly nonstop from Washington to San Antonio?
Southwest Airlines (25 a week), United Airlines (14 a week) and American Airlines (1 a week).
How many flights a day are there from Washington to San Antonio?
6 flights today and 40 a week, about 5.7 a day on average.
When are the first and last flights from Washington to San Antonio?
The first departure is at 08:10 (WN1152), the last at 17:00 (AA1947). Local time.
What is the cheapest upcoming date to fly from Washington to San Antonio?
17 November 2026 (Tuesday): from $116 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Washington to San Antonio?
American Airlines: nonstop tickets from $223 on 17 November by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Washington and San Antonio?
San Antonio is 1 hour behind Washington. Schedule times on this page are local to each airport.
Which Washington airport do flights to San Antonio leave from?
Ronald Reagan National (23 a week), Baltimore/Wash International Thurgood Marshall (10 a week) and Washington Dulles International (7 a week).