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Cheap flights Washington — San Antonio

Washington (WAS, US) San Antonio (SAT, US)
from $116 2 230 km ~3h 7m 4 flights found 4 airlines cheapest on Tuesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $116 on 17.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 10 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
17 Nov 2026, Tue
Frontier Airlines F9 685
15:00
DCA Ronald Reagan National Airport
21:35
SAT San Antonio International Airport
6h 35m 1 stop
Farehutz
$116
View this ticket
18 Nov 2026, Wed
American Airlines AA 1947
01:30
DCA Ronald Reagan National Airport
05:29
SAT San Antonio International Airport
3h 59m Direct
Farehutz
$223
View this ticket
26 Nov 2026, Thu
Southwest Airlines WN 1548
02:45
DCA Ronald Reagan National Airport
07:35
SAT San Antonio International Airport
4h 50m 1 stop
Trip.com
$300
View this ticket
26 Nov 2026, Thu
United Airlines UA 1869
01:30
IAD Washington Dulles International Airport
05:24
SAT San Antonio International Airport
3h 54m Direct
Farera
$321
View this ticket
Route characteristics
Distance
2 230 km
Flight time
3h 7m
Time difference
-1h
Minimum price
from $116 (17.11.2026)
Average price
$219
Maximum price
$300
Cheapest day
Tuesday
Departure airports (2)
DCA Ronald Reagan National Airport IAD Washington Dulles International Airport
Arrival airports (1)
SAT San Antonio International Airport
Airlines (4)
F9 Frontier Airlines AA American Airlines WN Southwest Airlines UA United Airlines
Agencies (3)
Farehutz Trip.com Farera
Prices by day of week
Tuesday
$116
avg $116
Cheapest
Wednesday
$223
avg $223
Thursday
$300
avg $311
Airlines — cheapest prices 4
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$116
American Airlines
American Airlines
1 flights · 1 days
$223
Southwest Airlines
Southwest Airlines
Low-cost 1 flights · 1 days
$300
United Airlines
United Airlines
1 flights · 1 days
$321
Where to buy tickets 3
Farehutz
2 tickets · 2 days
from $116
Trip.com
1 tickets · 1 days
from $300
Farera
1 tickets · 1 days
from $321
Airports

From — Washington (2)

  • DCA Ronald Reagan National Airport
  • IAD Washington Dulles International Airport

To — San Antonio (1)

  • SAT San Antonio International Airport
Other destinations from Washington
Nashville
US
Dallas
US · Hub
Los Angeles
US · Hub
Miami
US · Hub
Raleigh
US
St Louis
US
Cincinnati
US
Seattle
US
Boston
US
Atlanta
US · Hub
San Juan
PR
Tampa
US
Frequently asked questions about the route Washington — San Antonio
How long is the flight from Washington to San Antonio?
Approximate flight time — 3h 7m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Washington to San Antonio?
The straight-line distance — 2 230 km.
How much do flights from Washington to San Antonio cost?
The minimum price over 3 months — from $116 on 17.11.2026.
What is the average ticket price?
The average price — $219. Range: $116 — $300.
What is the time difference between Washington and San Antonio?
The difference — -1h.
From which airports does Washington operate flights?
From Washington: DCA (Ronald Reagan National Airport), IAD (Washington Dulles International Airport).
To which airports in San Antonio do flights arrive?
To San Antonio: SAT (San Antonio International Airport).
Which airlines fly this route?
This route is served by 4 airlines: Frontier Airlines, American Airlines, Southwest Airlines, United Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $223. Total direct flights found: 2.
Which day of the week is cheapest?
The cheapest day of the week — Tuesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Washington — San Antonio

Flights Washington — San Antonio is a popular route. The straight-line distance is 2 230 km. Flight time 3h 7m. Time difference -1h.

From Washington (WAS) flights depart from 2 airports: DCA, IAD. To San Antonio (SAT) — 1 arrival airport: SAT.

4 airlines operate on this route: Frontier Airlines, American Airlines, Southwest Airlines, United Airlines.

The minimum price for the next 3 months — from $116 (17.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $219, ranging from $116 to $300. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Tuesday.

Other destinations in United States from Washington
Nashville
US
Dallas
US
Los Angeles
US
Miami
US
Raleigh
US
St Louis
US
Seattle
US
Boston
US

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