United Airlines Seattle to Washington D.C. Flights

Cheapflightsplus.com will find cheap United Airlines flights from Seattle to Washington D.C.. Compare airline ticket prices and book air tickets starting from $96 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Seattle (WA) — Washington D.C. (DC) by United 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 october: one-way - $96, two-way – $165.
Direct flights
  • Check to choose departure date Check to choose departure date
Check prices for return flight
Find flights
Below is a detailed 2022 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 Arrival Flight Details Flight Time Price
10:55 pm — 6:44 am
+1 day
10:55 pm — 6:44 am UA205 United Airlines
Seattle — Washington D.C.
4h 49m
Find flight
from$302
1:10 pm — 8:59 pm
1:10 pm — 8:59 pm UA260 United Airlines
Seattle — Washington D.C.
4h 49m
Find flight
from$190
8:32 am — 4:44 pm
8:32 am — 4:44 pm UA640 United Airlines
Seattle — Washington D.C.
5h 12m
Find flight
from$96
0:40 am — 11:50 am
0:40 am — 6:38 am UA427 United Airlines
Seattle — Chicago
2h 22m stop
9:00 am — 11:50 am UA632 United Airlines
Chicago — Washington D.C.
8h 10m
including layover
Find flight
from$363
10:55 am — 9:00 pm
10:55 am — 5:01 pm UA1598 United Airlines
Seattle — Chicago
1h 4m stop
6:05 pm — 9:00 pm UA2058 United Airlines
Chicago — Washington D.C.
7h 5m
including layover
Find flight
from$100
11:35 am — 4:20 pm
+1 day
11:35 am — 1:59 pm UA5270 United Airlines
Seattle — San Francisco
18h 31m stop
8:30 am — 4:20 pm UA1178 United Airlines
San Francisco — Washington D.C.
25h 45m
including layover
Find flight
from$317
12:35 pm — 11:42 pm
12:35 pm — 6:50 pm UA335 United Airlines
Seattle — Houston
55m stop
7:45 pm — 11:42 pm UA6051 United Airlines
Houston — Washington D.C.
8h 7m
including layover
Find flight
from$100
1:15 pm — 11:27 pm
1:15 pm — 4:54 pm UA2493 United Airlines
Seattle — Denver
1h 1m stop
5:55 pm — 11:27 pm UA2135 United Airlines
Denver — Washington D.C.
7h 12m
including layover
Find flight
from$100
2:00 pm — 9:53 pm
+1 day
2:00 pm — 4:44 pm UA5782 United Airlines
Seattle — Los Angeles
21h 7m stop
1:51 pm — 9:53 pm UA783 United Airlines
Los Angeles — Washington D.C.
28h 53m
including layover
Find flight
from$158
3:03 pm — 4:20 pm
+1 day
3:03 pm — 5:22 pm UA324 United Airlines
Seattle — San Francisco
15h 8m stop
8:30 am — 4:20 pm UA1178 United Airlines
San Francisco — Washington D.C.
22h 17m
including layover
Find flight
from$217
4:18 pm — 5:56 am
+1 day
4:18 pm — 6:27 pm UA2398 United Airlines
Seattle — San Francisco
3h 13m stop
9:40 pm — 5:56 am UA697 United Airlines
San Francisco — Washington D.C.
10h 38m
including layover
Find flight
from$579
5:20 am — 3:18 pm
5:20 am — 8:59 am UA318 United Airlines
Seattle — Denver
1h 1m stop
10:00 am — 3:18 pm UA1767 United Airlines
Denver — Washington D.C.
6h 58m
including layover
Find flight
from$100
7:10 am — 5:00 pm
7:10 am — 1:12 pm UA616 United Airlines
Seattle — Chicago
48m stop
2:00 pm — 5:00 pm UA3559 United Airlines
Chicago — Washington D.C.
6h 50m
including layover
Find flight
from$100
8:20 am — 7:42 pm
8:20 am — 4:57 pm UA424 United Airlines
Seattle — Newark
1h 33m stop
6:30 pm — 7:42 pm UA3415 United Airlines
Newark — Washington D.C.
8h 22m
including layover
Find flight
from$100
9:45 am — 10:29 pm
9:45 am — 11:58 am UA1909 United Airlines
Seattle — San Francisco
2h 22m stop
2:20 pm — 10:29 pm UA444 United Airlines
San Francisco — Washington D.C.
9h 44m
including layover
Find flight
from$100
6:00 pm — 9:45 am
+1 day
6:00 pm — 8:23 pm UA5292 United Airlines
Seattle — San Francisco
3h 22m stop
11:45 pm — 5:58 am UA1682 United Airlines
San Francisco — Chicago
1h 2m stop
7:00 am — 9:45 am UA2198 United Airlines
Chicago — Washington D.C.
12h 45m
including layover
Find flight
from$198
*Departure and arrival times are local. Last updated on 09/29/2022

Flight Information

There are 4 flights by United 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 0:40 am to 9:45 am. Nonstop flight is 4h 49m. The time difference between Seattle and Washington D.C. is 3h.

  • The fastest flight 4h 49m
  • Average flight time 4h 58m
  • The earliest flight 0:40 am
  • The latest flight 9:45 am
  • Distance 2321 ml

The cheapest flight by United Airlines that our users were able to find is $96. This airfare is economy class on one-way UA640 flight for August 25, 2020 leaving Seattle-Tacoma Intl in Seattle at 8:32 am, it includes all taxes and additional fees.

Find same flight?

Other Popular Airlines on the Route

Besides United 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 9 direct flights every day from Seattle. Airlines and fares are below:

See more direct flights

Connecting Flights

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

See more connecting flights

How to book an air ticket yourself?

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.

Back