Southwest Airlines Seattle to Washington D.C. Flights

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Washington D.C. – Seattle

Page navigation

Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap Southwest Airlines flights from Seattle to Washington D.C.. Compare airline ticket prices and book air tickets starting from $97 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Southwest Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Washington D.C. (DC) by Southwest Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in may: one-way - $97, two-way – $166.

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Cheap Flights from Seattle to Washington D.C. by Southwest Airlines

Look at the list of plane tickets for the most connecting flights by Southwest Airlines, their prices start from $97. There’re no direct flights. The fastest connecting flight – 6h 20m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $97 Find flight	7:00 am Seattle Seattle-Tacoma Intl	6:05 pm Washington D.C. Ronald Reagan	8h 5m layover 2h 15m - Chicago	Southwest Airlines	WN1613 WN568
from $97 Find flight	10:05 am Seattle Seattle-Tacoma Intl	10:30 pm Washington D.C. Dulles International	9h 25m layover 3h 25m - Denver	Southwest Airlines	WN1436 WN618
from $145 Find flight	7:30 am Seattle Seattle-Tacoma Intl	6:25 pm Washington D.C. Dulles International	7h 55m layover 2h 5m - Denver	Southwest Airlines	WN2492 WN1855
from $145 Find flight	6:05 am Seattle Seattle-Tacoma Intl	6:25 pm Washington D.C. Dulles International	9h 20m layover 3h 30m - Denver	Southwest Airlines	WN1222 WN1855
from $199 Find flight	11:55 am Seattle Seattle-Tacoma Intl	9:55 pm Washington D.C. Ronald Reagan	7h 0m layover 1h 5m - Chicago	Southwest Airlines	WN378 WN1288
from $219 Find flight	9:25 am Seattle Seattle-Tacoma Intl	6:45 pm Washington D.C. Ronald Reagan	6h 20m layover 0h 35m - Lake Saint Louis	Southwest Airlines	WN1866 WN309
from $219 Find flight	6:05 am Seattle Seattle-Tacoma Intl	4:00 pm Washington D.C. Dulles International	6h 55m layover 0h 55m - Denver	Southwest Airlines	WN1222 WN2513
from $219 Find flight	11:45 am Seattle Seattle-Tacoma Intl	10:40 pm Washington D.C. Dulles International	7h 55m layover 2h 5m - Denver	Southwest Airlines	WN1591 WN2330
from $219 Find flight	6:55 am Seattle Seattle-Tacoma Intl	6:20 pm Washington D.C. Ronald Reagan	8h 25m layover 2h 40m - Chicago	Southwest Airlines	WN2485 WN199
from $250 Find flight	8:30 am Seattle Seattle-Tacoma Intl	7:33 pm Washington D.C. Dulles International	8h 3m layover 2h 0m - Denver	Southwest Airlines	WN480 UA461
from $256 Find flight	6:00 am Seattle Seattle-Tacoma Intl	5:35 pm Washington D.C. Dulles International	8h 35m layover 2h 40m - Denver	Southwest Airlines	WN1582 WN1674

Show All Flights

*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 04/26/2024

Southwest Airlines Flight Schedule Seattle to Washington D.C.

Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
10:05 am — 10:30 pm	10:05 am — 1:50 pm WN1436 Southwest Airlines Seattle — Denver 3h 25m stop 5:15 pm — 10:30 pm WN618 Southwest Airlines Denver — Washington D.C.	9h 25m including layover	Find flight from$97
11:45 am — 10:40 pm	11:45 am — 3:25 pm WN1591 Southwest Airlines Seattle — Denver 2h 5m stop 5:30 pm — 10:40 pm WN2330 Southwest Airlines Denver — Washington D.C.	7h 55m including layover	Find flight from$219
11:55 am — 9:55 pm	11:55 am — 6:00 pm WN378 Southwest Airlines Seattle — Chicago 1h 5m stop 7:05 pm — 9:55 pm WN1288 Southwest Airlines Chicago — Washington D.C.	7h including layover	Find flight from$199
6:15 pm — 12:23 pm +1 day	6:15 pm — 9:50 pm WN1565 Southwest Airlines Seattle — Denver 9h 10m stop 7:00 am — 12:23 pm F9534 Frontier Airlines Denver — Washington D.C.	15h 8m including layover	Find flight from$118
6:15 pm — 1:18 pm +1 day	6:15 pm — 9:50 pm WN1565 Southwest Airlines Seattle — Denver 10h 10m stop 8:00 am — 1:18 pm UA1949 United Airlines Denver — Washington D.C.	16h 3m including layover	Find flight from$124
7:00 am — 6:05 pm	7:00 am — 1:00 pm WN1613 Southwest Airlines Seattle — Chicago 2h 15m stop 3:15 pm — 6:05 pm WN568 Southwest Airlines Chicago — Washington D.C.	8h 5m including layover	Find flight from$97
7:30 am — 6:25 pm	7:30 am — 11:05 am WN2492 Southwest Airlines Seattle — Denver 2h 5m stop 1:10 pm — 6:25 pm WN1855 Southwest Airlines Denver — Washington D.C.	7h 55m including layover	Find flight from$145
8:30 am — 7:33 pm	8:30 am — 12:15 pm WN480 Southwest Airlines Seattle — Denver 2h stop 2:15 pm — 7:33 pm UA461 United Airlines Denver — Washington D.C.	8h 3m including layover	Find flight from$250
9:25 am — 6:45 pm	9:25 am — 3:15 pm WN1866 Southwest Airlines Seattle — Lake Saint Louis 35m stop 3:50 pm — 6:45 pm WN309 Southwest Airlines Lake Saint Louis — Washington D.C.	6h 20m including layover	Find flight from$219
2:45 pm — 7:45 am +1 day	2:45 pm — 6:25 pm WN1350 Southwest Airlines Seattle — Denver 1h 30m stop 7:55 pm — 0:40 am WN443 Southwest Airlines Denver — Cleveland 5h 56m stop 6:36 am — 7:45 am AA5301 American Airlines Cleveland — Washington D.C.	14h including layover	Find flight from$170
2:45 pm — 10:25 am +1 day	2:45 pm — 6:25 pm WN1350 Southwest Airlines Seattle — Denver 1h 20m stop 7:45 pm — 0:20 am WN1642 Southwest Airlines Denver — Columbus 8h 45m stop 9:05 am — 10:25 am WN6548 Southwest Airlines Columbus — Washington D.C.	16h 40m including layover	Find flight from$200
4:05 pm — 9:35 am +1 day	4:05 pm — 6:40 pm WN998 Southwest Airlines Seattle — Las Vegas 2h 51m stop 9:31 pm — 5:27 am B61078 JetBlue Las Vegas — Boston 2h 33m stop 8:00 am — 9:35 am B6389 JetBlue Boston — Washington D.C.	14h 30m including layover	Find flight from$349

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 04/26/2024

Flight Information

There are 25 flights by Southwest Airlines from Seattle to Washington D.C. every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Ronald Reagan and Dulles International.

Departures start from 10:05 am to 9:25 am. Nonstop flight is 6h 20m. The time difference between Seattle and Washington D.C. is 3h.

The fastest flight 6h 20m
Average flight time 13h 29m
The earliest flight 10:05 am
The latest flight 9:25 am
Distance 2321 ml

The cheapest flight by Southwest Airlines that our users were able to find is $97. This airfare is economy class on one-way WN1613 flight for August 25, 2020 leaving Seattle-Tacoma Intl in Seattle at 7:00 am, it includes all taxes and additional fees.

Find same flight?

Southwest Airlines Airplanes on the Route

List of the most popular Southwest Airlines airplanes flying from Seattle to Washington D.C.:

Other Popular Airlines on the Route

Besides Southwest Airlines there are other 7 airline carriers between Seattle and Washington D.C.. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Washington D.C..

Nonstop flights

There are 7 direct flights every day from Seattle. Airlines and fares are below:

AS - Alaska Airlines

from $53

Find
DL - Delta Air Lines Inc.

from $357

Find
UA - United Airlines

from $65

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

AA - American Airlines

from $67

Find
AS - Alaska Airlines

from $104

Find
F9 - Frontier Airlines

from $99

Find
SY - Sun Country Airlines

from $206

Find
DL - Delta Air Lines Inc.

from $93

Find
UA - United Airlines

from $68

Find
NK - Spirit Airlines

from $124

Find

See more connecting flights

How to book an air ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.