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 $141 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 december: one-way - $141, two-way – $242.

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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 connecting flights by United Airlines, their prices start from $141. There’re no direct flights. The fastest connecting flight – 7h 43m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $141 Find flight	12:45 pm Washington D.C. Dulles International	5:28 pm Seattle Seattle-Tacoma Intl	7h 43m layover 0h 49m - Denver	United Airlines	UA735 UA948
from $173 Find flight	10:15 pm Washington D.C. Dulles International	10:34 am+1 день Seattle Seattle-Tacoma Intl	15h 19m layover 7h 24m - Boston	United Airlines	UA352 B6597
from $276 Find flight	10:45 am Washington D.C. Ronald Reagan	4:45 pm Seattle Seattle-Tacoma Intl	9h 0m layover 2h 2m - Chicago	United Airlines	UA810 AS29
from $547 Find flight	10:05 pm Washington D.C. Dulles International	8:40 am+1 день Seattle Seattle-Tacoma Intl	13h 35m layover 6h 50m - Chicago	United Airlines	UA552 AS27
from $570 Find flight	10:15 pm Washington D.C. Dulles International	9:05 am+1 день Seattle Seattle-Tacoma Intl	13h 50m layover 6h 30m - Newark	United Airlines	UA596 AS31
from $354 Find flight	10:05 pm Washington D.C. Dulles International	10:20 am+1 день Seattle Seattle-Tacoma Intl	15h 15m layover 7h 13m - Columbus 0h 40m - Detroit	United Airlines	UA6366 DL6197 DL581
from $366 Find flight	10:45 am Washington D.C. Ronald Reagan	5:28 pm Seattle Seattle-Tacoma Intl	9h 43m layover 0h 52m - Chicago 0h 58m - Denver	United Airlines	UA810 UA775 UA948
from $377 Find flight	10:30 pm Washington D.C. Dulles International	10:20 am+1 день Seattle Seattle-Tacoma Intl	14h 50m layover 7h 2m - Pittsburgh 0h 44m - Detroit	United Airlines	UA6188 DL1361 DL581
from $401 Find flight	10:30 pm Washington D.C. Dulles International	10:16 am+1 день Seattle Seattle-Tacoma Intl	14h 46m layover 5h 27m - Pittsburgh 1h 4m - Charlotte	United Airlines	UA6188 AA468 AA560
from $424 Find flight	10:30 pm Washington D.C. Dulles International	10:40 am+1 день Seattle Seattle-Tacoma Intl	15h 10m layover 6h 27m - Pittsburgh 0h 40m - Atlanta	United Airlines	UA6188 DL1510 DL609
from $448 Find flight	10:30 pm Washington D.C. Dulles International	10:16 am+1 день Seattle Seattle-Tacoma Intl	14h 46m layover 5h 44m - Norfolk 0h 49m - Charlotte	United Airlines	UA6142 AA5532 AA560
from $449 Find flight	10:05 pm Washington D.C. Dulles International	10:16 am+1 день Seattle Seattle-Tacoma Intl	15h 11m layover 6h 11m - Richmond 1h 2m - Charlotte	United Airlines	UA6158 AA485 AA560

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 12/12/2023

United Airlines Flight Schedule Washington D.C. to Seattle

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 pm — 10:20 am +1 day	10:05 pm — 11:24 pm UA6366 United Airlines Washington D.C. — Columbus 7h 13m stop 6:37 am — 7:45 am DL6197 Delta Air Lines Inc. Columbus — Detroit 40m stop 8:25 am — 10:20 am DL581 Delta Air Lines Inc. Detroit — Seattle	15h 15m including layover	Find flight from$354
10:05 pm — 10:16 am +1 day	10:05 pm — 11:04 pm UA6158 United Airlines Washington D.C. — Richmond 6h 11m stop 5:15 am — 6:31 am AA485 American Airlines Richmond — Charlotte 1h 2m stop 7:33 am — 10:16 am AA560 American Airlines Charlotte — Seattle	15h 11m including layover	Find flight from$449
10:05 pm — 8:40 am +1 day	10:05 pm — 11:10 pm UA552 United Airlines Washington D.C. — Chicago 6h 50m stop 6:00 am — 8:40 am AS27 Alaska Airlines Chicago — Seattle	13h 35m including layover	Find flight from$547
10:05 pm — 8:44 am +1 day	10:05 pm — 11:10 pm UA552 United Airlines Washington D.C. — Chicago 7h stop 6:10 am — 8:44 am DL479 Delta Air Lines Inc. Chicago — Seattle	13h 39m including layover	Find flight from$616
10:10 pm — 8:50 am +1 day	10:10 pm — 11:25 pm UA4901 United Airlines Washington D.C. — Lake Saint Louis 7h stop 6:25 am — 8:50 am AS785 Alaska Airlines Lake Saint Louis — Seattle	13h 40m including layover	Find flight from$822
10:15 pm — 10:34 am +1 day	10:15 pm — 11:46 pm UA352 United Airlines Washington D.C. — Boston 7h 24m stop 7:10 am — 10:34 am B6597 JetBlue Boston — Seattle	15h 19m including layover	Find flight from$173
10:15 pm — 9:05 am +1 day	10:15 pm — 11:30 pm UA596 United Airlines Washington D.C. — Newark 6h 30m stop 6:00 am — 9:05 am AS31 Alaska Airlines Newark — Seattle	13h 50m including layover	Find flight from$570
10:15 pm — 8:55 am +1 day	10:15 pm — 0:47 am UA1448 United Airlines Washington D.C. — Los Angeles 5h 13m stop 6:00 am — 8:55 am AS1653 Alaska Airlines Los Angeles — Seattle	13h 40m including layover	Find flight from$578
10:30 pm — 10:20 am +1 day	10:30 pm — 11:33 pm UA6188 United Airlines Washington D.C. — Pittsburgh 7h 2m stop 6:35 am — 7:41 am DL1361 Delta Air Lines Inc. Pittsburgh — Detroit 44m stop 8:25 am — 10:20 am DL581 Delta Air Lines Inc. Detroit — Seattle	14h 50m including layover	Find flight from$377
10:30 pm — 10:16 am +1 day	10:30 pm — 11:33 pm UA6188 United Airlines Washington D.C. — Pittsburgh 5h 27m stop 5:00 am — 6:29 am AA468 American Airlines Pittsburgh — Charlotte 1h 4m stop 7:33 am — 10:16 am AA560 American Airlines Charlotte — Seattle	14h 46m including layover	Find flight from$401
10:30 pm — 10:40 am +1 day	10:30 pm — 11:33 pm UA6188 United Airlines Washington D.C. — Pittsburgh 6h 27m stop 6:00 am — 7:42 am DL1510 Delta Air Lines Inc. Pittsburgh — Atlanta 40m stop 8:22 am — 10:40 am DL609 Delta Air Lines Inc. Atlanta — Seattle	15h 10m including layover	Find flight from$424
10:30 pm — 10:16 am +1 day	10:30 pm — 11:38 pm UA6142 United Airlines Washington D.C. — Norfolk 5h 44m stop 5:22 am — 6:44 am AA5532 American Airlines Norfolk — Charlotte 49m stop 7:33 am — 10:16 am AA560 American Airlines Charlotte — Seattle	14h 46m including layover	Find flight from$448
10:30 pm — 9:28 am +1 day	10:30 pm — 11:27 pm UA6363 United Airlines Washington D.C. — Nashville 7h 3m stop 6:30 am — 9:28 am DL2922 Delta Air Lines Inc. Nashville — Seattle	13h 58m including layover	Find flight from$590
10:45 am — 4:45 pm	10:45 am — 11:53 am UA810 United Airlines Washington D.C. — Chicago 2h 2m stop 1:55 pm — 4:45 pm AS29 Alaska Airlines Chicago — Seattle	9h including layover	Find flight from$276
10:45 am — 5:28 pm	10:45 am — 11:53 am UA810 United Airlines Washington D.C. — Chicago 52m stop 12:45 pm — 2:31 pm UA775 United Airlines Chicago — Denver 58m stop 3:29 pm — 5:28 pm UA948 United Airlines Denver — Seattle	9h 43m including layover	Find flight from$366
12:45 pm — 5:28 pm	12:45 pm — 2:40 pm UA735 United Airlines Washington D.C. — Denver 49m stop 3:29 pm — 5:28 pm UA948 United Airlines Denver — Seattle	7h 43m including layover	Find flight from$141
7:45 pm — 6:55 am +1 day	7:45 pm — 9:32 pm UA2305 United Airlines Washington D.C. — Denver 43m stop 10:15 pm — 11:51 pm UA5335 United Airlines Denver — Salt Lake City 5h 44m stop 5:35 am — 6:55 am AS3341 Alaska Airlines Salt Lake City — Seattle	14h 10m including layover	Find flight from$828

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

*Departure and arrival times are local. Last updated on 12/12/2023

Flight Information

There are 18 flights 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 10:05 pm to 7:45 pm. Nonstop flight is 7h 43m. The time difference between Washington D.C. and Seattle is 3h.

The fastest flight 7h 43m
Average flight time 13h 58m
The earliest flight 10:05 pm
The latest flight 7:45 pm
Distance 2321 ml

The cheapest months for traveling to Seattle are december (from 141 $).

The cheapest flight by United Airlines that our users were able to find is $141. This airfare is economy class on one-way UA735 flight for December 13, 2023 leaving Dulles International in Washington D.C. at 12:45 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:

Boeing 737-900

from $141

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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’re no direct flights on this route. Try flights with stops.

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Connecting Flights

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

B6 - JetBlue

from $174

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How to book an air ticket yourself?

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