Seattle to London Flight Overview
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Flight Details
- Duration: 9-9.5 hours direct
- Direct Flights: Yes
- From: SEA (Seattle-Tacoma)
- To: LHR (Heathrow) or KEF (Reykjavik with connection)
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Typical Prices
- Economy: $500-$900 roundtrip
- Business: $3,000-$6,000 roundtrip
- Cheapest: January, February, November
- Priciest: June-August, December
Airlines Flying Seattle to London
British AirwaysDeltaIcelandairVirgin Atlantic
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Tips for Cheap Seattle to London Flights
1Icelandair via Reykjavik adds only 2 hours and offers a free Iceland stopover - two trips in one.
2British Airways operates their premium A380 on this route with excellent business class.
3Delta connects easily to Seattle from Alaska and the Pacific Northwest.
4Virgin Atlantic offers competitive fares with better premium economy than BA.
💡Savings tip: Icelandair via Reykjavik often saves $100-$200 with a free Iceland stopover
FAQs About Flights to Seattle to London
Direct flights from Seattle to London take 9-9.5 hours. The return is about 10-10.5 hours. British Airways and Delta operate nonstops.
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