SEA to LHR

Seattle to London flight ticket price

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

SEA
Seattle (SEA), United StatesSeattle/tacoma International
LHR
London (LHR), United KingdomHeathrow
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Live flights for Sat, 06 Jun 2026

Review fares, stops, timings and baggage. Use Search or View all flights for the complete search result.

Showing flight options for the selected travel date.
Currency: USD
Sat, 06 JunSEA to LHR$345 Sun, 07 JunSEA to LHR Mon, 08 JunSEA to LHR Tue, 09 JunSEA to LHR Wed, 10 JunSEA to LHR Thu, 11 JunSEA to LHR Fri, 12 JunSEA to LHR
Sort By:DepartureDurationArrivalPrice
Icelandair
Icelandair
FI-684
23:25
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
28H :30 M
1 Stop
KEF · 17h 40mReykjavik (KEF), Iceland
11:55
2026-06-08
London (LHR)United KingdomHeathrow
$345
total fare
Non Refundable 5 Seat Left Economy
Cabin: Included
Icelandair
Icelandair
FI-684
23:25
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
12H :55 M
1 Stop
KEF · 2h 10mReykjavik (KEF), Iceland
20:20
2026-06-07
London (LHR)United KingdomHeathrow
$349
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Icelandair
Icelandair
FI-682
19:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
17H :20 M
1 Stop
KEF · 6h 45mReykjavik (KEF), Iceland
20:20
2026-06-07
London (LHR)United KingdomHeathrow
$636
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Icelandair
Icelandair
FI-682
19:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
32H :55 M
1 Stop
KEF · 22h 15mReykjavik (KEF), Iceland
11:55
2026-06-08
London (LHR)United KingdomHeathrow
$638
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Icelandair
Icelandair
FI-680
15:40
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
12H :15 M
1 Stop
KEF · 1h 25mReykjavik (KEF), Iceland
11:55
2026-06-07
London (LHR)United KingdomHeathrow
$709
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
Icelandair
Icelandair
FI-680
15:40
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
20H :40 M
1 Stop
KEF · 9h 55mReykjavik (KEF), Iceland
20:20
2026-06-07
London (LHR)United KingdomHeathrow
$709
total fare
Non Refundable 1 Seat Left Economy
Cabin: Included
Air Canada
Air Canada
AC-8807
15:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
36H :50 M
2 Stops
YVR · 7h 03mVancouver (YVR), Canada
YYC · 18h 39mCalgary (YYC), Canada
11:50
2026-06-08
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
United Airlines
United Airlines
UA-2837
19:05
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
27H :50 M
1 Stop
IAD · 11h 32mWashington (IAD), United States
06:55
2026-06-08
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-8250
19:20
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
34H :00 M
1 Stop
YVR · 23h 43mVancouver (YVR), Canada
13:20
2026-06-08
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Air Canada
Air Canada
AC-8809
19:20
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
34H :00 M
1 Stop
YVR · 23h 43mVancouver (YVR), Canada
13:20
2026-06-08
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Delta Air Lines
Delta Air Lines
DL-452
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
13H :35 M
1 Stop
JFK · 1h 21mNew York (JFK), United States
20:10
2026-06-07
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Virgin Atlantic Airways
Virgin Atlantic Airways
VS-4820
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
13H :35 M
1 Stop
JFK · 1h 21mNew York (JFK), United States
20:10
2026-06-07
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-1274
23:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
13H :40 M
1 Stop
EWR · 1h 12mNew York (EWR), United States
20:40
2026-06-07
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 4 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-1274
23:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
14H :20 M
1 Stop
EWR · 2h 12mNew York (EWR), United States
21:20
2026-06-07
London (LHR)United KingdomHeathrow
$791
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Air Canada
Air Canada
AC-8807
15:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
31H :30 M
2 Stops
YVR · 7h 03mVancouver (YVR), Canada
YUL · 11h 45mMontreal (YUL), Canada
06:30
2026-06-08
London (LHR)United KingdomHeathrow
$794
total fare
Non Refundable 9 Seat Left Economy
United Airlines
United Airlines
UA-1900
07:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
29H :05 M
1 Stop
EWR · 16h 34mNew York (EWR), United States
20:40
2026-06-07
London (LHR)United KingdomHeathrow
$796
total fare
Non Refundable 6 Seat Left Economy
Cabin: Included
Delta Air Lines
Delta Air Lines
DL-1706
12:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
34H :35 M
1 Stop
DTW · 22h 31mDetroit (DTW), United States
07:10
2026-06-08
London (LHR)United KingdomHeathrow
$796
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
United Airlines
United Airlines
UA-2837
19:05
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
31H :35 M
1 Stop
IAD · 15h 17mWashington (IAD), United States
10:40
2026-06-08
London (LHR)United KingdomHeathrow
$796
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Delta Air Lines
Delta Air Lines
DL-810
23:05
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
24H :05 M
1 Stop
DTW · 12h 05mDetroit (DTW), United States
07:10
2026-06-08
London (LHR)United KingdomHeathrow
$796
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Air Canada
Air Canada
AC-8807
15:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
31H :35 M
2 Stops
YVR · 1h 53mVancouver (YVR), Canada
YYZ · 16h 52mToronto (YYZ), Canada
06:35
2026-06-08
London (LHR)United KingdomHeathrow
$799
total fare
Non Refundable 9 Seat Left Economy
Air Canada
Air Canada
AC-8807
15:00
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
33H :35 M
2 Stops
YVR · 1h 53mVancouver (YVR), Canada
YYZ · 18h 47mToronto (YYZ), Canada
08:35
2026-06-08
London (LHR)United KingdomHeathrow
$799
total fare
Non Refundable 9 Seat Left Economy
Klm Royal Dutch
Klm Royal Dutch
KL-7646
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
13H :35 M
1 Stop
JFK · 1h 21mNew York (JFK), United States
20:10
2026-06-07
London (LHR)United KingdomHeathrow
$805
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included

Recommended hotels in London

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Lufthansa
Lufthansa
LH-6481
19:20
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
34H :00 M
1 Stop
YVR · 23h 43mVancouver (YVR), Canada
13:20
2026-06-08
London (LHR)United KingdomHeathrow
$813
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Klm Royal Dutch
Klm Royal Dutch
KL-7646
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
23H :45 M
1 Stop
JFK · 11h 06mNew York (JFK), United States
06:20
2026-06-08
London (LHR)United KingdomHeathrow
$819
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Klm Royal Dutch
Klm Royal Dutch
KL-7646
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
24H :10 M
1 Stop
JFK · 11h 36mNew York (JFK), United States
06:45
2026-06-08
London (LHR)United KingdomHeathrow
$819
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
Klm Royal Dutch
Klm Royal Dutch
KL-7646
22:35
2026-06-06
SEATTLE (SEA)United StatesSeattle/tacoma International
24H :40 M
1 Stop
JFK · 12h 06mNew York (JFK), United States
07:15
2026-06-08
London (LHR)United KingdomHeathrow
$825
total fare
Non Refundable 9 Seat Left Economy
Cabin: Included
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Fare highlights

Selected flight highlights for 06 Jun 2026.

Open full search
Lowest fare $345 Icelandair 23:25
Earliest departure $796 United Airlines 07:35
Shortest duration $709 Icelandair 15:40
Night 00:00-05:59 No option Open full search for more
Morning 06:00-11:59 $796 United Airlines at 07:35
Afternoon 12:00-17:59 $709 Icelandair at 15:40
Evening 18:00-23:59 $345 Icelandair at 23:25

Seattle to London route details

Seattle (SEA)

Seattle/tacoma International

United States

GMT -8

Latitude: 47.449001

Longitude: -122.308998

London (LHR)

Heathrow

United Kingdom

GMT 0

Latitude: 51.4706

Longitude: -0.461941

Distance: Seattle (SEA), United States to London (LHR), United Kingdom - 7,702.08 km
Flights shown for 06 Jun 2026. View all flights opens the complete search result.

Seattle to London - what to expect when booking

The SEA to LHR cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 7,702.08 km.

Before you book

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More flights from Seattle (SEA)23 routes
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More flights from London (LHR)24 routes
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London → Amman
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London → Amsterdam
LHR → AMS
London → Ashgabat
LHR → ASB
London → Astana
LHR → TSE
London → Athens
LHR → ATH
London → Atlanta
LHR → ATL
London → Austin
LHR → AUS
London → Manama
LHR → BAH
London → Bangalore
LHR → BLR
London → Bangkok
LHR → BKK
London → Barcelona
LHR → BCN
London → Basel
LHR → BSL
London → Beijing
LHR → PEK
London → Beirut
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Frequently asked questions - Seattle to London flights
Generally yes. When your travel date is fixed, comparing live fares early gives you better visibility of timings, baggage and fare rules before prices change.
The approximate route distance between Seattle (SEA) and London (LHR) is 7,702.08 km. Actual flying distance can vary by airline routing.
Availability changes by airline schedule and date. Use the Stops filter to quickly check non-stop, one-stop and connecting options on this landing page.
Airline inventory can change within minutes. Book Now sends the selected result to the review flow where the fare is checked again before final booking.
Yes. The date strip and search box open the full search for the selected date, while this page keeps the route details easy to compare.