Seattle / Tacoma (SEA) to London Heathrow (LHR) flight deal in economy from $325

Air FranceAFAir FranceDelta Air LinesDLDelta Air LinesKLMKLKLM
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United KingdomLHR

London Heathrow Airport

London Heathrow, United Kingdom
$410 USD
-21%$325 USD
Verified 13 days ago
Fair Availability
39% of dates checked are available within 10% of the lowest price

Sunday, October 4th, 2026

Outbound Flights

9h 50m·Nonstop
$325 USD
Virgin Atlantic
SEAOct 4 18:20
→
LHROct 5 12:10
VS 106Airbus A330-900neo
9h 45m·Nonstop
$325 USD
Delta Air Lines
SEAOct 4 21:50
→
LHROct 5 15:35
DL 20Airbus A330-900neo
16h 25m·1 stop
$329 USD
Delta Air Lines
SEAOct 4 06:00
→
ATLOct 4 13:43
DL 569Boeing 737
3h 22m layover
Delta Air Lines
ATLOct 4 17:05
→
LHROct 5 06:25
DL 30Boeing 767
14h 15m·1 stop
$329 USD
Delta Air Lines
SEAOct 4 09:00
→
ATLOct 4 16:34
DL 560Boeing 757
1h 41m layover
Virgin Atlantic
ATLOct 4 18:15
→
LHROct 5 07:15
VS 104Airbus A350
13h·1 stop
$330 USD
Air France
SEAOct 4 13:30
→
CDGOct 5 08:10
AF 337Airbus A350
1h 45m layover
Air France
CDGOct 5 09:55
→
LHROct 5 10:30
AF 1580Airbus A220-300 Passenger
13h·1 stop
$333 USD
Delta Air Lines
SEAOct 4 13:45
→
AMSOct 5 08:40
DL 142Airbus A330-900neo
1h 35m layover
KLM
AMSOct 5 10:15
→
LHROct 5 10:45
KL 1005Airbus A321neo
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