Lowest Priced Flights to London on Alaska Airlines starting at $415*
Most popular flights to London on Alaska Airlines.*
*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.
Top offers for London one-way flights.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Nov 3, 2026 | From $415 Seen: 7 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Aug 13, 2026 | From $415 Seen: 6 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Sep 20, 2026 | From $415 Seen: 7 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Sep 23, 2026 | From $415 Seen: 6 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Aug 19, 2026 | From $415 Seen: 8 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Aug 26, 2026 | From $415 Seen: 4 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Sep 22, 2026 | From $419 Seen: 3 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Aug 13, 2026 | From $469 Seen: 7 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Sep 8, 2026 | From $488 Seen: 15 hours ago | |
| Los Angeles (LAX) | London (LHR) | One-way | Saver | Depart: Jul 7, 2026 | From $518 Seen: 2 hours ago | |
| Los Angeles (LAX) | London (LHR) | One-way | Saver | Depart: Jul 29, 2026 | From $533 Seen: 3 hours ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: Jun 30, 2026 | From $566 Seen: 16 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Jul 16, 2026 | From $580 Seen: 8 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Nov 21, 2026 | From $580 Seen: 3 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Jun 6, 2026 | From $765 Seen: 6 hours ago | |
| Anchorage (ANC) | London (LHR) | One-way | Saver | Depart: Aug 28, 2026 | From $787 Seen: 3 hours ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: Jun 29, 2026 | From $798 Seen: 6 hours ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: May 30, 2026 | From $868 Seen: 4 hours ago | |
| Anchorage (ANC) | London (LHR) | One-way | Saver | Depart: Jun 24, 2026 | From $877 Seen: 6 hours ago | |
| Honolulu (HNL) | London (LHR) | One-way | Saver | Depart: Jun 7, 2026 | From $883 Seen: 3 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.