Seattle (SEA) to London (LHR) Flights from ₹42,338
Fares on this route currently start from ₹42,338. Compare live SEA to LHR prices, non-stop and connecting flights, departure times and airline choices before booking. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
SEA → LHRApprox. 7702.08 km04 Jun 2026Live inventory
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Showing 25
of 120
live flights
Icelandair
FI-682
19:00
06/04/2026
SEA
Seattle Tacoma International Airport
19h 40m
1 Stop
⏱ KEF · 1h 5mKEF Airport
14:40
06/05/2026
+1
LGW
London Heathrow Airport
₹42,338
per person
✕ Non-refundable5 fare options
Icelandair
FI-680
15:40
06/04/2026
SEA
Seattle Tacoma International Airport
23h 0m
1 Stop
⏱ KEF · 4h 15mKEF Airport
14:40
06/05/2026
+1
LGW
London Heathrow Airport
₹42,761
per person
✕ Non-refundable🔥 Last 2 seats
Icelandair
FI-682
19:00
06/04/2026
SEA
Seattle Tacoma International Airport
25h 20m
1 Stop
⏱ KEF · 6h 45mKEF Airport
20:20
06/05/2026
+1
LHR
London Heathrow Airport
₹42,761
per person
✕ Non-refundable
Icelandair
FI-680
15:40
06/04/2026
SEA
Seattle Tacoma International Airport
28h 40m
1 Stop
⏱ KEF · 9h 55mKEF Airport
20:20
06/05/2026
+1
LHR
London Heathrow Airport
₹42,761
per person
✕ Non-refundable
Icelandair
FI-682
19:00
06/04/2026
SEA
Seattle Tacoma International Airport
40h 55m
1 Stop
⏱ KEF · 22h 15mKEF Airport
11:55
06/06/2026
+2
LHR
London Heathrow Airport
₹42,918
per person
✕ Non-refundable
Delta Air Lines
DL-949
16:35
06/04/2026
SEA
Seattle Tacoma International Airport
20h 30m
1 Stop
⏱ MSP · 1h 10mMSP Airport
13:05
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
United Airlines
UA-757
15:40
06/04/2026
SEA
Seattle Tacoma International Airport
20h 45m
1 Stop
⏱ DEN · 0h 56mDEN Airport
12:25
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
United Airlines
UA-1351
12:50
06/04/2026
SEA
Seattle Tacoma International Airport
20h 50m
1 Stop
⏱ DEN · 0h 53mDEN Airport
09:40
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable🔥 Last 5 seats2 fare options
United Airlines
UA-2835
10:52
06/04/2026
SEA
Seattle Tacoma International Airport
21h 38m
1 Stop
⏱ ORD · 1h 10mORD Airport
08:30
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable🔥 Last 5 seats2 fare options
United Airlines
UA-768
13:51
06/04/2026
SEA
Seattle Tacoma International Airport
22h 4m
1 Stop
⏱ ORD · 1h 23mORD Airport
11:55
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable🔥 Last 3 seats2 fare options
Delta Air Lines
DL-2324
09:30
06/04/2026
SEA
Seattle Tacoma International Airport
21h 40m
1 Stop
⏱ DTW · 1h 32mDTW Airport
07:10
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
United Airlines
UA-2131
13:00
06/04/2026
SEA
Seattle Tacoma International Airport
21h 40m
1 Stop
⏱ IAD · 1h 9mIAD Airport
10:40
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
United Airlines
UA-688
08:00
06/04/2026
SEA
Seattle Tacoma International Airport
22h 55m
1 Stop
⏱ IAD · 2h 21mIAD Airport
06:55
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
United Airlines
UA-2205
13:30
06/04/2026
SEA
Seattle Tacoma International Airport
21h 40m
1 Stop
⏱ SFO · 0h 57mSFO Airport
11:10
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
United Airlines
UA-2831
08:45
06/04/2026
SEA
Seattle Tacoma International Airport
22h 40m
1 Stop
⏱ SFO · 2h 2mSFO Airport
07:25
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable🔥 Last 1 seats2 fare options
United Airlines
UA-1274
23:00
06/04/2026
SEA
Seattle Tacoma International Airport
21h 40m
1 Stop
⏱ EWR · 1h 12mEWR Airport
20:40
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
United Airlines
UA-1900
07:35
06/04/2026
SEA
Seattle Tacoma International Airport
22h 20m
1 Stop
⏱ EWR · 1h 29mEWR Airport
05:55
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
aircanada
AC-8807
15:00
06/04/2026
SEA
Seattle Tacoma International Airport
22h 20m
1 Stop
⏱ YVR · 4h 3mYVR Airport
13:20
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
aircanada
AC-8809
19:20
06/04/2026
SEA
Seattle Tacoma International Airport
42h 0m
1 Stop
⏱ YVR · 23h 43mYVR Airport
13:20
06/06/2026
+2
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable5 fare options
Delta Air Lines
DL-562
07:30
06/04/2026
SEA
Seattle Tacoma International Airport
22h 55m
1 Stop
⏱ ATL · 1h 42mATL Airport
06:25
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable4 fare options
Delta Air Lines
DL-20
22:05
06/04/2026
SEA
Seattle Tacoma International Airport
17h 30m
Non-stop
15:35
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
Delta Air Lines
DL-5974
20:10
06/04/2026
SEA
Seattle Tacoma International Airport
17h 50m
Non-stop
14:00
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
Virgin Atlantic
VS-4037
22:05
06/04/2026
SEA
Seattle Tacoma International Airport
17h 30m
Non-stop
15:35
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
Virgin Atlantic
VS-106
20:10
06/04/2026
SEA
Seattle Tacoma International Airport
17h 50m
Non-stop
14:00
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable6 fare options
United Airlines
UA-8246
15:00
06/04/2026
SEA
Seattle Tacoma International Airport
22h 20m
1 Stop
⏱ YVR · 4h 3mYVR Airport
13:20
06/05/2026
+1
LHR
London Heathrow Airport
₹69,743
per person
✕ Non-refundable2 fare options
😕 No flights match your filters.
Seattle (SEA)
📍 Seattle Tacoma International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 47.449001
📐 Longitude: -122.308998
London (LHR)
📍 London Heathrow Airport
🌍 United Kingdom
📐 Latitude: 51.4706
📐 Longitude: -0.461941
✈ Distance: Seattle,USA to London,United Kingdom — 7702.08 km
📅 Results on this page are loaded for 04 Jun 2026. Click View all flights for the complete live search.
Seattle to London — what to expect when booking
The SEA–LHR route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Seattle,USA and London,United Kingdom is approximately
7702.08 km.
Before you book
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❓ Frequently asked questions — Seattle to London flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Seattle,USA (SEA) and London,United Kingdom (LHR) is approximately 7702.08 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.