United Airlines Washington D.C. to Seattle Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Washington D.C. to Seattle. Compare airline ticket prices and book air tickets starting from $204 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 Washington D.C. (DC) — Seattle (WA) 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 february: one-way - $204, two-way – $350.

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

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $204. The fastest nonstop flight takes 6h. The fastest connecting flight — 7h 42m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $204 Find flight	5:19 pm Washington D.C. Dulles International	8:19 pm Seattle Seattle-Tacoma Intl	6h 0m	United Airlines	UA1730
from $214 Find flight	6:17 pm Washington D.C. Dulles International	0:55 am+1 день Seattle Seattle-Tacoma Intl	9h 38m layover 1h 15m - San Francisco	United Airlines	UA1666 UA1743
from $247 Find flight	6:00 pm Washington D.C. Ronald Reagan	10:42 pm Seattle Seattle-Tacoma Intl	7h 42m layover 0h 36m - Chicago	United Airlines	UA2148 UA2211
from $247 Find flight	6:30 am Washington D.C. Dulles International	2:22 pm Seattle Seattle-Tacoma Intl	10h 52m layover 2h 24m - San Francisco	United Airlines	UA1095 UA419
from $247 Find flight	6:30 am Washington D.C. Dulles International	3:54 pm Seattle Seattle-Tacoma Intl	12h 24m layover 3h 55m - San Francisco	United Airlines	UA1095 UA1387
from $290 Find flight	5:15 pm Washington D.C. Dulles International	10:45 pm Seattle Seattle-Tacoma Intl	8h 30m layover 1h 20m - Denver	United Airlines	UA1728 UA2651
from $290 Find flight	1:00 pm Washington D.C. Ronald Reagan	6:45 pm Seattle Seattle-Tacoma Intl	8h 45m layover 1h 44m - Chicago	United Airlines	UA1685 UA2278
from $290 Find flight	5:59 pm Washington D.C. Ronald Reagan	0:55 am+1 день Seattle Seattle-Tacoma Intl	9h 56m layover 1h 12m - San Francisco	United Airlines	UA698 UA1743
from $332 Find flight	10:20 pm Washington D.C. Dulles International	9:49 am+1 день Seattle Seattle-Tacoma Intl	14h 29m layover 7h 16m - Denver	United Airlines	UA1580 UA204
from $333 Find flight	12:45 pm Washington D.C. Dulles International	6:45 pm Seattle Seattle-Tacoma Intl	9h 0m layover 2h 2m - Chicago	United Airlines	UA1709 UA2278
from $333 Find flight	11:30 am Washington D.C. Ronald Reagan	6:45 pm Seattle Seattle-Tacoma Intl	10h 15m layover 2h 58m - Chicago	United Airlines	UA3520 UA2278
from $333 Find flight	5:00 pm Washington D.C. Ronald Reagan	10:42 pm Seattle Seattle-Tacoma Intl	8h 42m layover 1h 38m - Chicago	United Airlines	UA2362 UA2211
from $333 Find flight	4:23 pm Washington D.C. Dulles International	0:55 am+1 день Seattle Seattle-Tacoma Intl	11h 32m layover 2h 57m - San Francisco	United Airlines	UA1318 UA1743
from $339 Find flight	6:25 am Washington D.C. Ronald Reagan	3:54 pm Seattle Seattle-Tacoma Intl	12h 29m layover 1h 0m - Chicago 1h 55m - San Francisco	United Airlines	UA1793 UA1387 UA1387

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/05/2025

United Airlines Flight Schedule Washington D.C. to Seattle

Below is a detailed 2025 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
10:20 pm — 9:49 am +1 day	10:20 pm — 0:30 am UA1580 United Airlines Washington D.C. — Denver 7h 16m stop 7:46 am — 9:49 am UA204 United Airlines Denver — Seattle	14h 29m including layover	Find flight from$332
11:30 am — 6:45 pm	11:30 am — 1:07 pm UA3520 United Airlines Washington D.C. — Chicago 2h 58m stop 4:05 pm — 6:45 pm UA2278 United Airlines Chicago — Seattle	10h 15m including layover	Find flight from$333
12:45 pm — 6:45 pm	12:45 pm — 2:03 pm UA1709 United Airlines Washington D.C. — Chicago 2h 2m stop 4:05 pm — 6:45 pm UA2278 United Airlines Chicago — Seattle	9h including layover	Find flight from$333
1:00 pm — 6:45 pm	1:00 pm — 2:21 pm UA1685 United Airlines Washington D.C. — Chicago 1h 44m stop 4:05 pm — 6:45 pm UA2278 United Airlines Chicago — Seattle	8h 45m including layover	Find flight from$290
4:23 pm — 0:55 am +1 day	4:23 pm — 7:38 pm UA1318 United Airlines Washington D.C. — San Francisco 2h 57m stop 10:35 pm — 0:55 am UA1743 United Airlines San Francisco — Seattle	11h 32m including layover	Find flight from$333
5:00 pm — 10:42 pm	5:00 pm — 6:21 pm UA2362 United Airlines Washington D.C. — Chicago 1h 38m stop 7:59 pm — 10:42 pm UA2211 United Airlines Chicago — Seattle	8h 42m including layover	Find flight from$333
5:15 pm — 10:45 pm	5:15 pm — 7:24 pm UA1728 United Airlines Washington D.C. — Denver 1h 20m stop 8:44 pm — 10:45 pm UA2651 United Airlines Denver — Seattle	8h 30m including layover	Find flight from$290
5:19 pm — 8:19 pm	5:19 pm — 8:19 pm UA1730 United Airlines Washington D.C. — Seattle	6h	Find flight from$204
5:59 pm — 0:55 am +1 day	5:59 pm — 9:23 pm UA698 United Airlines Washington D.C. — San Francisco 1h 12m stop 10:35 pm — 0:55 am UA1743 United Airlines San Francisco — Seattle	9h 56m including layover	Find flight from$290
6:00 pm — 10:42 pm	6:05 pm — 7:23 pm UA2148 United Airlines Washington D.C. — Chicago 36m stop 8:04 pm — 10:53 pm UA2211 United Airlines Chicago — Seattle	7h 42m including layover	Find flight from$247
6:17 pm — 0:55 am +1 day	6:17 pm — 9:20 pm UA1666 United Airlines Washington D.C. — San Francisco 1h 15m stop 10:35 pm — 0:55 am UA1743 United Airlines San Francisco — Seattle	9h 38m including layover	Find flight from$214
6:25 am — 11:44 am	6:25 am — 7:45 am UA1793 United Airlines Washington D.C. — Chicago 1h 15m stop 9:00 am — 11:44 am UA1705 United Airlines Chicago — Seattle	8h 19m including layover	Find flight from$290
6:25 am — 3:54 pm	6:25 am — 7:45 am UA1793 United Airlines Washington D.C. — Chicago 1h stop 8:45 am — 11:40 am UA1387 United Airlines Chicago — San Francisco 1h 55m stop 1:35 pm — 3:54 pm UA1387 United Airlines San Francisco — Seattle	12h 29m including layover	Find flight from$339
6:30 am — 2:22 pm	6:30 am — 9:40 am UA1095 United Airlines Washington D.C. — San Francisco 2h 24m stop 12:04 pm — 2:22 pm UA419 United Airlines San Francisco — Seattle	10h 52m including layover	Find flight from$247
6:30 am — 3:54 pm	6:30 am — 9:40 am UA1095 United Airlines Washington D.C. — San Francisco 3h 55m stop 1:35 pm — 3:54 pm UA1387 United Airlines San Francisco — Seattle	12h 24m including layover	Find flight from$247

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

*Departure and arrival times are local. Last updated on 02/05/2025

Flight Information

There is 1 flight by United Airlines from Washington D.C. to Seattle every week with departures from Ronald Reagan and Dulles International. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 10:20 pm to 6:30 am. Nonstop flight is 6h. The time difference between Washington D.C. and Seattle is 3h.

The fastest flight 6h
Average flight time 6h
The earliest flight 10:20 pm
The latest flight 6:30 am
Distance 2321 ml

The cheapest months for traveling to Seattle are january (from 192 $), february (from 204 $).

The cheapest flight by United Airlines that our users were able to find is $204. This airfare is economy class on one-way UA1730 flight for February 21, 2025 leaving Dulles International in Washington D.C. at 5:19 pm, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

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

Other Popular Airlines on the Route

Besides United Airlines there are other 1 airline carriers between Washington D.C. and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Washington D.C. to Seattle.

Nonstop flights

There are 4 direct flights every day from Washington D.C.. Airlines and fares are below:

AS - Alaska Airlines

from $151

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Connecting Flights

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

AS - Alaska Airlines

from $246

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