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) | Los Angeles (LAX) | One-way | Saver | Depart: Sep 14, 2026 | From $493 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 15, 2026 | From $516 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 2, 2026 | From $516 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Nov 18, 2026 | From $516 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 29, 2026 | From $518 Seen: 21 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 30, 2026 | From $518 Seen: 9 hours ago | |
| London (LHR) | Los Angeles (LAX) | One-way | Saver | Depart: Oct 8, 2026 | From $536 Seen: 18 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 4, 2026 | From $558 Seen: 1 day ago | |
| London (LHR) | Los Angeles (LAX) | One-way | Saver | Depart: Oct 17, 2026 | From $650 Seen: 18 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.