Southwest Airlines Seattle to Washington D.C. Flights
Cheapflightsplus.com will find cheap Southwest Airlines flights from Seattle to Washington D.C.. Compare airline ticket prices and book air tickets starting from $152 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
Cheap Flights from Seattle to Washington D.C. by Southwest Airlines
Price | Departure | Arrival | Flight Time | Airline | Flight |
---|---|---|---|---|---|
from $152 | 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 $152 | 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 $230 | 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 $230 | 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 $230 | 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 |
Southwest Airlines Flight Schedule Seattle to Washington D.C.
Departure | Arrival | Flight Details | Flight Time | Price |
---|---|---|---|---|
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$230 |
|
6:05 am — 6:25 pm
|
6:05 am — 9:40 am
WN1222
Southwest Airlines
Seattle — Denver
3h 30m stop
1:10 pm — 6:25 pm
WN1855
Southwest Airlines
Denver — Washington D.C.
|
9h 20m including layover |
Find flight
from$152 |
|
6:05 am — 4:00 pm
|
6:05 am — 9:40 am
WN1222
Southwest Airlines
Seattle — Denver
55m stop
10:35 am — 4:00 pm
WN2513
Southwest Airlines
Denver — Washington D.C.
|
6h 55m including layover |
Find flight
from$230 |
|
6:55 am — 6:20 pm
|
6:55 am — 1:00 pm
WN2485
Southwest Airlines
Seattle — Chicago
2h 40m stop
3:40 pm — 6:20 pm
WN199
Southwest Airlines
Chicago — Washington D.C.
|
8h 25m including layover |
Find flight
from$230 |
|
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$152 |
|
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$230 |
Flight Information
There are 7 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 11:45 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 7h 55m
- The earliest flight 11:45 am
- The latest flight 9:25 am
- Distance 2321 ml
The cheapest flight by Southwest Airlines that our users were able to find is $152. This airfare is economy class on one-way WN1222 flight for October 3, 2018 leaving Seattle-Tacoma Intl in Seattle at 6:05 am, it includes all taxes and additional fees.
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 1 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 1 direct flights every day from Seattle. Airlines and fares are below:
- AS - Alaska Airlinesfrom $147Find
Connecting Flights
List of flights with layovers (1 and more stops):
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.