Cheap flights from Dulles Intl (IAD) to San Antonio (SAT) from $112

This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
IAD — SAT
Sep 26 — Oct 31

How to find the cheapest flight from Dulles Intl (IAD) to San Antonio (SAT)

All the information you need to plan the best IAD to SAT flight in 2023: compare Dulles Intl to San Antonio flight prices with the expected peak season, weather and rainfall in San Antonio.

Popular in

June

Cheapest in

April

Round-trip from

$298

One-way from

$211
High demand for flights, 17% potential price rise
Best time to find cheap flights, 19% potential price drop
From Washington, D.C. Dulles Intl to San Antonio
One-way flight from Washington, D.C. Dulles Intl to San Antonio

IAD - SAT

Price

$298 - $510

SAT

Temperature

51.8 - 84.2 °F

SAT

Rainfall

1.6 - 3.7 inches

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to San Antonio?

To save up to 45% on this flight, we recommend booking at least 55 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Dulles Intl Airport to San Antonio from $521 1-2 weeks out and tickets from $646 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to San Antonio?

January can be a great time to fly to San Antonio from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $441. Cheapflights users have found deals in the month of January for as cheap as $284. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to San Antonio (IAD - SAT)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to San Antonio as you normally would.

Cheap United Airlines flights from Dulles Intl to San Antonio

Take a look at some of the lowest-priced United Airlines flights heading from Washington, D.C. to San Antonio. Deals update often to give you more flight options matching your criteria

Cheap American Airlines flights from Dulles Intl to San Antonio

Some of the lowest-priced American Airlines flights we've found at this time heading from Washington, D.C. to San Antonio. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Dulles Intl to San Antonio flights in September & October 2023

The best prices found for IAD to SAT flights for September, October
These are some of the most attractive deals on flights from Washington, D.C. to San Antonio in 2023. Check back soon for alternative fares.

Dulles Intl to San Antonio 2023 flight deals

Cheap flights to San Antonio from Dulles Intl found for this year
These are some of the most attractive deals on flights from Washington, D.C. to San Antonio in 2023. Check back soon for alternative fares.

Non-stop flights to San Antonio from Dulles Intl

Save time with Dulles Intl to San Antonio direct flight deals
For a quicker trip, book one of these direct flights from Washington, D.C. to San Antonio. Search for alternative flights from Washington, D.C. to San Antonio by utilizing the search form above.

Dulles Intl to San Antonio flights leaving soon

Late deals on return flights to San Antonio from Dulles Intl, departing today and this week
Have a look at some of the flights available from Washington, D.C. to San Antonio departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to San Antonio from Dulles Intl

The cheapest one-way flights from Dulles Intl to San Antonio
Take a look at some of the one-way flights we've detected from Washington, D.C. to San Antonio. Users needing a return flight from Washington, D.C. to San Antonio should utilize the search form above.

Find flights from Dulles Intl to San Antonio within your budget

Use the slider to find flights from Dulles Intl to San Antonio that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$208 - $447

Route

Depart

Return

Price

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 11/3

Nonstop3h 49m

San Antonio

Mon 11/6

Nonstop3h 09m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 11/3

Nonstop3h 49m

San Antonio

Tue 11/7

1 stop5h 25m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Wed 11/1

1 stop7h 30m

San Antonio

Fri 11/3

1 stop5h 12m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Thu 11/2

1 stop6h 21m

San Antonio

Wed 11/8

1 stop5h 11m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Mon 11/6

1 stop6h 43m

San Antonio

Mon 11/6

1 stop5h 56m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Tue 10/17

2 stops9h 04m

San Antonio

Thu 10/26

1 stop5h 08m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Sat 10/7

1 stop5h 49m

San Antonio

Sat 10/14

1 stop6h 54m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Mon 10/2

3 stops28h 13m

San Antonio

Wed 10/4

2 stops26h 57m

Washington, D.C. Dulles IntlSan Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 12/22

1 stop5h 44m

San Antonio

Tue 1/2

1 stop8h 00m

Flights are sorted by cheapest first

Deals found on 9/20

Reviews of airlines servicing San Antonio

Peruse reviews from past customers who have flown with United Airlines, American Airlines and Delta from Washington, D.C. to San Antonio to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

Alaska Airlines
8.1
Very good
1,393 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

Delta
7.9
Good
3,016 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

United Airlines
7.4
Good
1,887 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

Spirit Airlines
6.3
Okay
1,483 reviews
Alaska Airlines
8.1
Very good
1,393 reviews

Overall

8.1

Entertainment

7.2

Food

7.2

Comfort

8.0

Crew

8.6

Boarding

8.3

Reviews

1 / 10

Didn't get any food so can't rate that. Flight attendants were really nice. Glad no masks were required. Overall a pleasant flight.

Related info for your journey

Useful info, stats and facts about Dulles Intl to San Antonio flights.

What airport do you fly into for flights to San Antonio from Washington, D.C. Dulles Intl?

San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to San Antonio. 4 airlines have flights to San Antonio from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to San Antonio should not be difficult; the airport handles an average of 4 inbound flights from Washington, D.C. Dulles Intl per day.

Can I find flights from Washington, D.C. Dulles Intl Airport to San Antonio for under $300 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to San Antonio for under $300. The cheapest flight booked recently is on United Airlines for just $208, but on average you can expect to pay $237.

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to San Antonio for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to San Antonio under $300. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to San Antonio is less than $335.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to San Antonio for under $400?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to San Antonio within the next 7 days for less than $400.

What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to San Antonio?

Nonstop flights are available for this route on the following days: Friday, Saturday.

How many flights depart from Washington, D.C. Dulles Intl Airport to San Antonio on average per day?

6 flight departures from Washington, D.C. Dulles Intl Airport to San Antonio per day on average.
Morning (6am - Noon) - 33% of flight departures
Afternoon (Noon - 6pm) - 67% of flight departures

How long is the flight from Washington, D.C. Dulles Intl Airport to San Antonio?

A quick flight from Washington, D.C. Dulles Intl Airport to San Antonio can take about 3h 49m. United Airlines provides one of the quickest options available for as low as $208. Airlines will cover a distance of 1368 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Antonio round-trip?

Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to San Antonio round-trip from $208. Other airlines that can offer you cheap pricing are American Airlines, from $224, and Delta, from $227. You may be able to fly from Washington, D.C. Dulles Intl Airport to San Antonio for 54% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Antonio one-way?

One-way options have recently been found by users for as low as $112 on American Airlines. Other airlines that offer cheap prices include Delta from $114 and Alaska Airlines from $211 one-way.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to San Antonio?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to San Antonio?

Consider Mesa Airlines (100%), United Airlines (83%) or Air Canada (75%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Antonio.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to San Antonio?

Looking at all options, your cheapest flight can be booked for $89. While the most popular route (Washington, D.C. Dulles Intl - San Antonio) can be booked for $208 on average our data indicates $595 when flying from Washington, D.C. Dulles Intl Airport to San Antonio.

What does IAD to SAT mean?

IAD stands for Washington, D.C. Dulles Intl Airport, while SAT stands for San Antonio Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Dulles Intl to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dulles Intl to San Antonio

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to San Antonio choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$99Average$207FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$221Average$455FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$226Average$422FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$229Average$447FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Hourly flight availability from Dulles Intl to San Antonio

See what time of day planes typically take off from Dulles Intl to San Antonio
0%of flight departuresEarly morningMidnight to 6 am
40%of flight departuresMorning6 am to noon
60%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Dulles Intl to San Antonio

See how many times per day planes take to the skies headed from Dulles Intl to San Antonio
Sunday5daily flights
Monday5daily flights
Tuesday5daily flights
Wednesday5daily flights
Thursday5daily flights
Friday5daily flights
Saturday2daily flights
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