Flights from Seattle to London Heathrow
SEALHR
Seattle–Tacoma International Airport (Seattle, United States) → London Heathrow Airport (London, United Kingdom)
- Nonstop
- 9h 15m
- Distance
- 7,702 km
- Frequency
- 7×/week
- One-way from
- $243
- Airlines
- Alaska Airlines, British Airways, Delta Air Lines, Virgin Atlantic
Fares by month
One-way, per personLowest fares Aviasales travelers found in recent searches; some may include a connection. Prices change often — tap a month to see live fares.
Weekly schedule
Monday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Tuesday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Wednesday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Thursday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Friday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Saturday
- BA5213:30→06:4510h 15mBritish Airways
- VS10617:30→11:2010h 50mVirgin Atlantic
- BA4820:20→13:4510h 25mBritish Airways
- AS10021:40→15:0510h 25mAlaska Airlines
- DL2021:50→15:3510h 45mDelta Air Lines
Sunday
- BA5213:30→06:459h 15mBritish Airways
- VS10617:30→11:209h 50mVirgin Atlantic
- BA4820:20→13:459h 25mBritish Airways
- AS10021:40→15:059h 25mAlaska Airlines
- DL2021:50→15:359h 45mDelta Air Lines
Seattle to London Heathrow — frequently asked
- How long is the flight from Seattle to London Heathrow?
- SEA–LHR is 9h 15m nonstop, covering 7,702 km (4,786 mi).
- Which airlines fly nonstop from Seattle to London Heathrow?
- Alaska Airlines, British Airways, Delta Air Lines, Virgin Atlantic operate this route nonstop.
- How much is a flight from Seattle to London Heathrow?
- One-way fares on SEA–LHR recently started from $243. The lowest recent fare is for travel in November 2026. Fares change daily, so check current prices before booking.
- How often do flights run from Seattle to London Heathrow?
- The route is served 7 days a week (35 scheduled departures).