How far in advance should I book tickets for a flight with Southwest from Austin to Washington, D.C.?

Generally, when trying to get a below average price for your ticket, try to book around 13 days before departure. For the cheapest possible price, our data suggests booking 45 days before departure.

Is Southwest the cheapest airline to fly with from Austin to Washington, D.C.?

With an average price of $501 return, Southwest is not the cheapest airline to fly from Austin to Washington, D.C. with. Instead, for the lowest price, our data suggests flying with Allegiant Air, where a return flight costs $173 on average.

What is the cheapest Southwest flight from Austin to Washington, D.C.?

In the last 3 days, the lowest price for a flight with Southwest from Austin to Washington, D.C. was $238 for a return flight and $130 for a one-way flight.

Does Southwest fly direct to Washington, D.C. from Austin?

Yes, Southwest does offer direct flights for the route, with around 5 flights per week.

What’s the cheapest day of the week to fly from Austin to Washington, D.C. with Southwest?

On average, the cheapest day of the week to fly from Austin to Washington, D.C. with Southwest is Wednesday, when prices are around $145. The most expensive day is generally Thursday, where the average price is around $212.

What’s the cheapest month to fly from Austin to Washington, D.C. with Southwest?

The cheapest month for Southwest flights to Washington, D.C. from Austin is generally May, where plane tickets cost $235 on average. If possible, try to avoid the most expensive months of July and April, where tickets cost $427 and $508 respectively.

$93 Cheap Southwest Flights from Austin to Washington, D.C.

Flight Deals

Cheap Southwest Flight Deals from Austin to Washington, D.C.

Here are some of the best deals found on KAYAK recently from Southwest for round-trip flights from Austin to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip Southwest flight deals from Austin to Washington, D.C.

Wed, Dec 17 - Mon, Dec 22

6:20 am - 11:55 amAUS-BWI

4h 35m1 stop

7:40 pm - 1:10 amBWI-AUS

6h 30m1 stop

$190Southwest

Find Deal

Tue, Dec 23 - Thu, Jan 1

7:25 pm - 1:05 amAUS-BWI

4h 40m1 stop

6:25 am - 11:25 amBWI-AUS

6h 00m1 stop

$195Southwest

Find Deal

Tue, Dec 23 - Wed, Dec 24

7:25 pm - 1:05 amAUS-BWI

4h 40m1 stop

2:50 pm - 7:00 pmBWI-AUS

5h 10m1 stop

$198Southwest

Find Deal

Wed, Dec 17 - Mon, Dec 22

9:20 am - 4:55 pmAUS-BWI

6h 35m2 stops

7:40 pm - 1:10 amBWI-AUS

6h 30m1 stop

$200Southwest

Find Deal

Sun, Dec 21 - Mon, Dec 22

7:25 pm - 1:05 amAUS-BWI

4h 40m1 stop

7:40 pm - 1:10 amBWI-AUS

6h 30m1 stop

$203Southwest

Find Deal

Mon, Jan 5 - Thu, Jan 8

2:30 pm - 9:40 pmAUS-BWI

6h 10m2 stops

8:50 am - 2:10 pmBWI-AUS

6h 20m1 stop

$204Southwest

Find Deal

Wed, Dec 24 - Wed, Dec 31

9:30 am - 5:05 pmAUS-BWI

6h 35m1 stop

3:55 pm - 9:40 pmBWI-AUS

6h 45m2 stops

$214Southwest

Find Deal

Wed, Dec 24 - Wed, Dec 31

5:40 am - 9:45 amAUS-BWI

3h 05mnonstop

2:50 pm - 7:00 pmBWI-AUS

5h 10m1 stop

$234Southwest

Find Deal

Wed, Dec 17 - Mon, Dec 22

5:40 am - 9:45 amAUS-BWI

3h 05mnonstop

7:40 pm - 1:10 amBWI-AUS

6h 30m1 stop

$238Southwest

Find Deal

Tue, Dec 23 - Wed, Dec 24

8:55 pm - 12:55 amAUS-BWI

3h 00mnonstop

2:50 pm - 7:00 pmBWI-AUS

5h 10m1 stop

$242Southwest

Find Deal

Useful Info

Low season	February
High season	October
Cheapest flight	$93
Average price round-trip	$413
Good deal one-way	$188

Best time to beat the crowds but there is an average 11% increase in price.

Most popular time to fly and prices are also 2% lower on average.

Flight from Austin to Baltimore

(avg. price over the last 2 weeks)

or less

When to Book Flights with Southwest from Austin to Washington, D.C.

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Southwest from Austin to Washington, D.C.?
Generally, when trying to get a below average price for your ticket, try to book around 13 days before departure. For the cheapest possible price, our data suggests booking 45 days before departure.
Is Southwest the cheapest airline to fly with from Austin to Washington, D.C.?
With an average price of $501 return, Southwest is not the cheapest airline to fly from Austin to Washington, D.C. with. Instead, for the lowest price, our data suggests flying with Allegiant Air, where a return flight costs $173 on average.
What is the cheapest Southwest flight from Austin to Washington, D.C.?
In the last 3 days, the lowest price for a flight with Southwest from Austin to Washington, D.C. was $238 for a return flight and $130 for a one-way flight.
Does Southwest fly direct to Washington, D.C. from Austin?
Yes, Southwest does offer direct flights for the route, with around 5 flights per week.
What’s the cheapest day of the week to fly from Austin to Washington, D.C. with Southwest?
On average, the cheapest day of the week to fly from Austin to Washington, D.C. with Southwest is Wednesday, when prices are around $145. The most expensive day is generally Thursday, where the average price is around $212.
What’s the cheapest month to fly from Austin to Washington, D.C. with Southwest?
The cheapest month for Southwest flights to Washington, D.C. from Austin is generally May, where plane tickets cost $235 on average. If possible, try to avoid the most expensive months of July and April, where tickets cost $427 and $508 respectively.

8.0

Very good4,237 verified ratings

7.5Entertainment

8.0Comfort

8.1Boarding

8.6Crew

7.0Food

Pros +

Cons -

Show reviews that mention

10.0 Wonderful

Stacy, Oct 2025

SMF-DEN

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

2.0 Poor

Verified traveler, Oct 2025

DAL-LIT

Delayed 5.5 hours

10.0 Wonderful

Verified traveler, Oct 2025

BOS-BWI

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

8.0 Very good

Verified traveler, Oct 2025

MHT-MDW

Getting worse with new changes.

4.0 Mediocre

Jeff, Oct 2025

MCI-SAN

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

4.0 Mediocre

Thomas, Oct 2025

STL-CMH

Internet was not functioning.

2.0 Poor

Thomas, Oct 2025

SAT-STL

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

10.0 Wonderful

Lynda, Oct 2025

VPS-BNA

On time. Communication good. Smooth flight

2.0 Poor

Princess, Oct 2025

MSY-DAL

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

6.0 Okay

Thomas, Oct 2025

DAL-SAT

Late again.

Everything you need to know for your flight from Austin to Washington, D.C.

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Cabin class types available on flights to Washington, D.C.

First Class flights from Austin to Washington, D.C.

Business Class flights from Austin to Washington, D.C.

Prem Econ Class flights from Austin to Washington, D.C.

Economy Class flights from Austin to Washington, D.C.

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$93 Find Cheap Southwest Flights from Austin to Washington, D.C.

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Cheap Southwest Flight Deals from Austin to Washington, D.C.

Recent round-trip Southwest flight deals from Austin to Washington, D.C.

Recent one-way Southwest flight deals from Austin to Washington, D.C.

Recent last minute Southwest flight deals from Austin to Washington, D.C.

Recent direct Southwest flight deals from Austin to Washington, D.C.

Good to know

When to Book Flights with Southwest from Austin to Washington, D.C.

FAQs for flying to Washington, D.C. with Southwest

How far in advance should I book tickets for a flight with Southwest from Austin to Washington, D.C.?

Is Southwest the cheapest airline to fly with from Austin to Washington, D.C.?

What is the cheapest Southwest flight from Austin to Washington, D.C.?

Does Southwest fly direct to Washington, D.C. from Austin?

What’s the cheapest day of the week to fly from Austin to Washington, D.C. with Southwest?

What’s the cheapest month to fly from Austin to Washington, D.C. with Southwest?

Southwest Customer Reviews

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Everything you need to know for your flight from Austin to Washington, D.C.

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Austin. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Washington, D.C. with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Find deals for your return flight

Top Southwest flights

The most popular destinations for flights with Southwest according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.