Compare and book Southwest flights to Washington, D.C. on momondo

1 adult

0 bags

Recent Southwest flights to Washington, D.C. found by users

Cheapest

Round-trip

Direct

Last minute

One-way

Cheap Southwest Flight Deals to Washington, D.C.

Enter your travel dates to find the best prices.

7:45 am - 9:25 amBOS-BWI

1h 40mnonstop

8:05 pm - 9:35 pmBWI-BOS

1h 30mnonstop

$205Southwest

Find Deal

Wed, Dec 17 - Mon, Dec 22

5:35 am - 7:15 amBOS-BWI

1h 40mnonstop

9:10 pm - 10:40 pmBWI-BOS

1h 30mnonstop

$206Southwest

Find Deal

Thu, Dec 18 - Tue, Dec 23

5:35 am - 4:00 pmLAX-BWI

7h 25m1 stop

1:30 pm - 4:20 pmBWI-LAX

5h 50mnonstop

$209Southwest

Find Deal

Sat, Dec 13 - Tue, Dec 16

5:35 am - 7:15 amBOS-BWI

1h 40mnonstop

6:40 am - 8:10 amBWI-BOS

1h 30mnonstop

$215Southwest

Find Deal

Sat, Dec 20 - Sun, Dec 21

7:45 am - 9:25 amBOS-BWI

1h 40mnonstop

6:45 am - 8:15 amBWI-BOS

1h 30mnonstop

$224Southwest

Find Deal

Wed, Dec 3 - Fri, Dec 5

5:35 am - 7:15 amBOS-BWI

1h 40mnonstop

8:45 pm - 10:15 pmBWI-BOS

1h 30mnonstop

$226Southwest

Find Deal

Mon, Dec 22 - Thu, Dec 25

6:00 am - 3:40 pmLAX-BWI

6h 40m1 stop

1:30 pm - 4:20 pmBWI-LAX

5h 50mnonstop

$229Southwest

Find Deal

Thu, Dec 4 - Wed, Dec 10

6:30 am - 2:20 pmLAX-BWI

4h 50mnonstop

4:00 pm - 8:55 pmBWI-LAX

7h 55m1 stop

$233Southwest

Find Deal

Wed, Dec 3 - Wed, Jan 7

9:05 am - 10:45 amBOS-BWI

1h 40mnonstop

5:45 pm - 7:20 pmBWI-BOS

1h 35mnonstop

$234Southwest

Find Deal

Fri, Dec 5 - Thu, Dec 11

7:55 pm - 9:35 pmBOS-BWI

1h 40mnonstop

6:40 am - 8:10 amBWI-BOS

1h 30mnonstop

$235Southwest

Find Deal

Mon, Dec 15 - Sun, Jan 4

Southwest flights to Washington, D.C. at a glance

Fastest flight time	1h 35m
Direct flights	Every day
Airports in Washington, D.C.	1 airport

The fastest flight from United States to Washington, D.C. takes 1h 35m

Search Deals

Direct flights go from United States to Washington, D.C. every day.

Search Deals

There is 1 airport near Washington, D.C.: Baltimore/Washington (BWI)

Search Deals

Insights on Southwest flights to Washington, D.C.

Data designed to help you find the right flight

What is the cheapest month to fly Economy Class to Washington, D.C.?

In general, August is the cheapest month to fly Economy Class from United States to Washington, D.C.. Due to it being the ‘off-season’ during this time, you can expect Economy Class flight prices to be around $256. If you aren’t able to travel during the month of August, then book Economy Class flights to Washington, D.C. from United States during September instead. Economy Class flights to Washington, D.C. in September, while not as cheap as those in August, still average around $278.

What is the cheapest day to depart on your Economy Class flight to Washington, D.C.?

The cheapest day to depart from United States to Washington, D.C. is on a Wednesday when prices can be found for as low as $204. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average Economy Class ticket price to Washington, D.C. on a Friday is $279.

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $234 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from United States for as low as $180 on momondo.

Can stopping save me money on United States to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between United States to Washington, D.C..

Frequently asked questions about flights to Washington, D.C. with Southwest

Is Southwest generally cheaper than other airlines for flights to Washington, D.C.?

Lots of factors influence the price of a flight, whether that's with Southwest or other airlines so it is best to search and compare before booking. The airline flying to Washington, D.C. with the cheapest average return price tends to be Avelo Airlines.