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Get United's best fares today on flights from Seattle to London from *

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Low fare calendar for flights from Seattle (PAE) to London (LHR)

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from
$1,292*
Viewed:3 hours ago
Economy
Return:02/29/20
18
from
$1,242*
Viewed:4 hours ago
Economy
Return:02/25/20
19
from
$1,242*
Viewed:4 hours ago
Economy
Return:02/26/20
20
from
$1,296*
Viewed:4 hours ago
Economy
Return:02/27/20
21
from
$1,296*
Viewed:4 hours ago
Economy
Return:02/28/20
22
from
$1,306*
Viewed:7 hours ago
Economy
Return:03/09/20
23
from
$1,004*
Viewed:3 hours ago
Economy
Return:03/01/20
24
from
$1,014*
Viewed:4 hours ago
Economy
Return:03/02/20
25
from
$950*
Viewed:4 hours ago
Economy
Return:03/03/20
26
from
$950*
Viewed:4 hours ago
Economy
Return:03/04/20
27
from
$1,008*
Viewed:4 hours ago
Economy
Return:03/05/20
28
from
$1,004*
Viewed:4 hours ago
Economy
Return:03/06/20
29
from
$1,004*
Viewed:7 hours ago
Economy
Return:03/09/20
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 Seattle to London?

FromToDatesFare TypePrice

Seattle (SEA)

London (LHR)

Depart: 04/29/20

Return: 05/06/20

Roundtrip
from
$482*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/22/20

Return: 05/06/20

Roundtrip
from
$482*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/28/20

Return: 05/12/20

Roundtrip
from
$486*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/29/20

Return: 05/13/20

Roundtrip
from
$486*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 05/05/20

Return: 05/12/20

Roundtrip
from
$489*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 05/06/20

Return: 05/13/20

Roundtrip
from
$491*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/28/20

Return: 05/05/20

Roundtrip
from
$492*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 05/05/20

Return: 05/19/20

Roundtrip
from
$496*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/21/20

Return: 05/05/20

Roundtrip
from
$497*
Viewed:3hoursago

Seattle (SEA)

London (LHR)

Depart: 04/21/20

Return: 04/28/20

Roundtrip
from
$497*
Viewed:3hoursago

*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 London

Monday scattered clouds
48°F 02/17/20
Tuesday moderate rain
48°F 02/18/20
Wednesday light rain
44°F 02/19/20
Thursday light rain
50°F 02/20/20
Friday light rain
49°F 02/21/20
Saturday light rain
55°F 02/22/20
Sunday overcast clouds
56°F 02/23/20
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