Alaska Airlines Flights from United Kingdom to United States
Deals on one-way flights from United Kingdom to United States.*
London (LHR)to
Seattle (SEA)London (LHR)to
Seattle (SEA)*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way low-fare flights United Kingdom to United States.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 28, 2026 | From $596 Seen: 6 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 22, 2026 | From $596 Seen: 1 hour ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 23, 2026 | From $596 Seen: 3 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 21, 2026 | From $596 Seen: 1 hour ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Nov 21, 2026 | From $652 Seen: 2 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Jul 9, 2026 | From $721 Seen: 2 hours ago | |
| London (LHR) | Los Angeles (LAX) | One-way | Saver | Depart: Aug 9, 2026 | From $1,128 Seen: 5 hours ago |
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.