Find flight deals from London to Seattle

Cheapest flights from London to Seattle
Explore the most affordable flight options available from London to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.

Thu 28/812:10LGW - SEA

1 stop17h 55mJetBlue

Thu 4/911:30SEA - LGW

1 stop14h 05mJetBlue

Deal found 13/7£481

Tue 26/820:05LHR - SEA

2 stops32h 49mSWISS

Tue 9/914:29SEA - LHR

2 stops41h 56mSWISS

Deal found 14/7£481

Fri 12/906:30LHR - SEA

2 stops15h 46mMultiple Airlines

Sun 14/910:00SEA - LHR

2 stops15h 35mMultiple Airlines

Deal found 14/7£482

Wed 20/813:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Wed 10/915:15SEA - LHR

1 stop14h 15mVirgin Atlantic

Deal found 14/7£484

Sat 30/814:00LGW - SEA

2 stops40h 29mMultiple Airlines

Sat 6/908:00SEA - LGW

1 stop18h 50mMultiple Airlines

Deal found 15/7£484

Sat 16/821:25LHR - SEA

1 stop22h 00mIcelandair

Sat 6/915:45SEA - LHR

1 stop12h 10mIcelandair

Deal found 15/7£484

Mon 1/915:05LHR - SEA

2 stops37h 37mAustrian Airlines

Mon 15/907:00SEA - LHR

2 stops18h 40mAustrian Airlines

Deal found 15/7£485

Sat 30/814:00LGW - SEA

2 stops40h 29mMultiple Airlines

Sat 6/908:00SEA - LGW

1 stop18h 50mMultiple Airlines

Deal found 15/7£486

Thu 28/813:05LHR - SEA

1 stop12h 45mIcelandair

Thu 4/923:30SEA - LHR

1 stop12h 50mIcelandair

Deal found 14/7£486

Mon 1/909:50LHR - SEA

Nonstop9h 45mFinnair

Sun 21/923:49SEA - LHR

1 stop22h 36mFinnair

Deal found 16/7£487

Sat 30/814:05LHR - SEA

1 stop14h 40mUnited Airlines

Sat 6/908:45SEA - LHR

1 stop16h 55mUnited Airlines

Deal found 15/7£487

Wed 27/814:05LHR - SEA

1 stop14h 40mUnited Airlines

Tue 9/907:10SEA - LHR

2 stops17h 10mUnited Airlines

Deal found 14/7£488

Best flights from London to Seattle
Discover carefully curated flight deals from London to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 July 2025.

Thu 28/812:10LGW - SEA

1 stop17h 55mJetBlue

Thu 4/911:30SEA - LGW

1 stop14h 05mJetBlue

Deal found 13/7£481

Tue 26/820:05LHR - SEA

2 stops32h 49mSWISS

Tue 9/914:29SEA - LHR

2 stops41h 56mSWISS

Deal found 14/7£481

Fri 12/906:30LHR - SEA

2 stops15h 46mMultiple Airlines

Sun 14/910:00SEA - LHR

2 stops15h 35mMultiple Airlines

Deal found 14/7£482

Wed 20/813:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Wed 10/915:15SEA - LHR

1 stop14h 15mVirgin Atlantic

Deal found 14/7£484

Sat 16/821:25LHR - SEA

1 stop22h 00mIcelandair

Fri 5/915:45SEA - LHR

1 stop12h 10mIcelandair

Deal found 15/7£484

Mon 1/915:05LHR - SEA

2 stops37h 37mAustrian Airlines

Mon 15/907:00SEA - LHR

2 stops18h 40mAustrian Airlines

Deal found 15/7£485

Mon 1/909:50LHR - SEA

Nonstop9h 45mFinnair

Sun 21/923:49SEA - LHR

1 stop22h 36mFinnair

Deal found 16/7£487

Sat 30/814:05LHR - SEA

1 stop14h 40mUnited Airlines

Sat 6/908:45SEA - LHR

1 stop16h 55mUnited Airlines

Deal found 15/7£487

Tue 2/906:30LHR - SEA

1 stop13h 25mLufthansa

Mon 15/907:00SEA - LHR

1 stop15h 20mLufthansa

Deal found 15/7£489

Wed 10/909:50LHR - SEA

Nonstop9h 45mBritish Airways

Mon 15/920:20SEA - LHR

Nonstop9h 20mBritish Airways

Deal found 16/7£490

Thu 28/809:30LHR - SEA

1 stop19h 15mAir Canada

Tue 9/905:30SEA - LHR

2 stops17h 00mAir Canada

Deal found 14/7£496

Mon 25/809:55LHR - SEA

1 stop14h 00mDelta

Wed 10/920:25SEA - LHR

Nonstop9h 50mDelta

Deal found 15/7£499

Direct flights from London to Seattle
Explore direct flight options from London to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 16 July 2025.

Wed 20/817:25LHR - SEA

Nonstop10h 20mVirgin Atlantic

Wed 10/917:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 14/7£484

Wed 8/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Wed 15/1020:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 15/7£484

Wed 8/1009:50LHR - SEA

Nonstop9h 45mBritish Airways

Tue 14/1013:30SEA - LHR

Nonstop9h 20mBritish Airways

Deal found 16/7£487

Wed 10/909:50LHR - SEA

Nonstop9h 45mBritish Airways

Mon 15/920:20SEA - LHR

Nonstop9h 20mBritish Airways

Deal found 16/7£490

Mon 27/1016:10LHR - SEA

Nonstop10h 10mVirgin Atlantic

Mon 11/515:35SEA - LHR

Nonstop9h 25mVirgin Atlantic

Deal found 16/7£491

Mon 25/817:25LHR - SEA

Nonstop10h 20mVirgin Atlantic

Tue 9/920:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 15/7£493

Wed 3/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Wed 17/920:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 16/7£494

Mon 25/816:30LHR - SEA

Nonstop9h 50mBritish Airways

Wed 10/913:30SEA - LHR

Nonstop9h 20mBritish Airways

Deal found 15/7£497

Mon 5/116:10LHR - SEA

Nonstop10h 10mVirgin Atlantic

Mon 19/122:15SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 16/7£499

Mon 1/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 15/917:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 15/7£500

Mon 18/817:25LHR - SEA

Nonstop10h 20mVirgin Atlantic

Tue 2/920:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 14/7£502

Wed 27/817:25LHR - SEA

Nonstop10h 20mVirgin Atlantic

Wed 3/917:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 15/7£504

Last-minute flights from London to Seattle
Discover last-minute flight deals from London to Seattle. Data last updated 16 July 2025 and is based on user searches.

Tue 22/717:00LHR - SEA

1 stop28h 50mScandinavian Airlines

Mon 8/916:00SEA - LHR

2 stops32h 55mScandinavian Airlines

Deal found 14/7£630

Tue 22/717:00LHR - SEA

1 stop28h 50mScandinavian Airlines

Mon 8/916:00SEA - LHR

2 stops32h 55mScandinavian Airlines

Deal found 15/7£630

Tue 22/715:35LHR - SEA

2 stops30h 15mScandinavian Airlines

Mon 8/916:00SEA - LHR

2 stops32h 55mScandinavian Airlines

Deal found 15/7£653

Tue 22/709:55LHR - SEA

2 stops35h 55mScandinavian Airlines

Mon 8/916:00SEA - LHR

2 stops32h 55mScandinavian Airlines

Deal found 14/7£655

Tue 22/717:00LHR - SEA

1 stop28h 50mScandinavian Airlines

Mon 8/916:00SEA - LHR

1 stop16h 00mScandinavian Airlines

Deal found 14/7£662

Tue 22/717:00LHR - SEA

1 stop28h 50mScandinavian Airlines

Mon 8/916:00SEA - LHR

1 stop16h 00mScandinavian Airlines

Deal found 15/7£662

Tue 22/719:30LHR - SEA

1 stop26h 20mScandinavian Airlines

Mon 8/916:00SEA - LHR

2 stops32h 55mScandinavian Airlines

Deal found 16/7£668

Tue 22/709:25LHR - SEA

Nonstop9h 45mFinnair

Tue 19/813:30SEA - LHR

Nonstop9h 20mFinnair

Deal found 16/7£677

Tue 22/721:20LHR - SEA

2 stops26h 40mBritish Airways

Tue 19/813:30SEA - LHR

Nonstop9h 20mBritish Airways

Deal found 16/7£686

Tue 22/706:15LHR - SEA

1 stop13h 00mVirgin Atlantic

Tue 19/820:25SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 14/7£689

Wed 23/709:30LHR - SEA

1 stop14h 30mAmerican Airlines

Tue 5/807:49SEA - LHR

1 stop14h 36mAmerican Airlines

Deal found 16/7£661

Thu 24/708:25LHR - SEA

1 stop34h 08mIcelandair

Thu 7/823:25SEA - LHR

1 stop13h 20mIcelandair

Deal found 14/7£670

One-way flights from London to Seattle
Search for one-way flight options from London to Seattle. Find affordable one-way fares based on user searches. Data last updated 16 July 2025.

Mon 1/922:00STN - SEA

3 stops29h 14mMultiple Airlines

Deal found 14/7£402

Thu 28/808:05LHR - SEA

3 stops23h 54mMultiple Airlines

Deal found 14/7£402

Sun 24/807:40LGW - SEA

3 stops41h 18mMultiple Airlines

Deal found 15/7£403

Tue 28/1006:20LHR - SEA

3 stops34h 11mMultiple Airlines

Deal found 16/7£403

Wed 7/107:05SEN - SEA

2 stops20h 38mMultiple Airlines

Deal found 14/7£404

Wed 10/1212:10LHR - SEA

1 stop14h 10mAer Lingus

Deal found 15/7£404

Fri 21/1108:15LGW - SEA

3 stops34h 08mMultiple Airlines

Deal found 16/7£405

Mon 27/1021:20STN - SEA

3 stops30h 26mMultiple Airlines

Deal found 15/7£405

Sun 5/1011:35LGW - SEA

3 stops33h 24mMultiple Airlines

Deal found 16/7£405

Wed 13/816:50SEN - SEA

3 stops31h 10mMultiple Airlines

Deal found 15/7£405

Mon 29/906:10STN - SEA

2 stops19h 40mMultiple Airlines

Deal found 14/7£406

Tue 23/907:40LHR - SEA

1 stop18h 10mAer Lingus

Deal found 16/7£407

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Cheap flights from London to Seattle – Compare and Save

Find flight deals from London to Seattle

Cheapest flights from London to SeattleExplore the most affordable flight options available from London to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.

Explore the most affordable flight options available from London to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from London to Seattle
Explore the most affordable flight options available from London to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 July 2025.