Alaska Airlines Cheap Flights from London to United States
Deals on one-way flights from London to United States.*
*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 London to United States.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Nov 3, 2026 | From $470 Seen: 17 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 16, 2026 | From $510 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 7, 2026 | From $511 Seen: 22 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 30, 2026 | From $511 Seen: 16 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 28, 2026 | From $511 Seen: 18 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 20, 2026 | From $566 Seen: 1 day ago | |
| London (LHR) | Los Angeles (LAX) | One-way | Saver | Depart: May 29, 2026 | From $641 Seen: 17 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.