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Get United's best fares today on flights from Washington, D.C. to Seattle from

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Low fare calendar for flights from Washington, D.C. (IAD) to Seattle (SEA)

Sunday
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Friday
Saturday
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from
$971*
Viewed:16 hours ago
Economy
Return date11/17/19
16
from
$971*
Viewed:2 hours ago
Economy
Return date11/18/19
17
from
$792*
Viewed:2 hours ago
Economy
Return date11/21/19
18
from
$971*
Viewed:2 hours ago
Economy
Return date11/20/19
19
from
$764*
Viewed:18 hours ago
Economy
Return date11/29/19
20
from
$553*
Viewed:18 hours ago
Economy
Return date11/22/19
21
No available results
22
from
$535*
Viewed:9 hours ago
Economy
Return date11/23/19
23
from
$502*
Viewed:5 hours ago
Economy
Return date11/29/19
24
No available results
25
from
$565*
Viewed:8 minutes ago
Economy
Return date11/26/19
26
from
$596*
Viewed:2 hours ago
Economy
Return date12/01/19
27
from
$447*
Viewed:19 hours ago
Economy
Return date12/02/19
28
from
$487*
Viewed:14 hours ago
Economy
Return date12/02/19
29
from
$391*
Viewed:13 hours ago
Economy
Return date12/06/19
30
from
$574*
Viewed:13 hours ago
Economy
Return date12/14/19
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Looking for additional flights from Washington, D.C. to Seattle?

FromToDatesFare TypePrice

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 11/17/19

11/20/19

Roundtrip
from
$971*
Viewed:6hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 12/16/19

12/18/19

Roundtrip
from
$342*
Viewed:6hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 12/04/19

12/05/19

Roundtrip
from
$342*
Viewed:6hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 11/18/19

11/19/19

Roundtrip
from
$971*
Viewed:6hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 06/18/20

06/27/20

Roundtrip
from
$458*
Viewed:7hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 12/21/19

12/27/19

Roundtrip
from
$774*
Viewed:7hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 12/06/19

12/07/19

Roundtrip
from
$356*
Viewed:8hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 11/23/19

11/23/19

Roundtrip
from
$547*
Viewed:8hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 11/22/19

11/23/19

Roundtrip
from
$535*
Viewed:8hoursago

Washington, D.C. (IAD)

Seattle (SEA)

Depart: 05/22/20

06/06/20

Roundtrip
from
$520*
Viewed:8hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Seattle

Thursday overcast clouds
51°F 11/14/19
Friday moderate rain
51°F 11/15/19
Saturday light rain
48°F 11/16/19
Sunday moderate rain
52°F 11/17/19
Monday moderate rain
55°F 11/18/19
Tuesday moderate rain
52°F 11/19/19
Wednesday few clouds
48°F 11/20/19
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