Lowest Priced Flights to London on Alaska Airlines starting at $453*
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 | |
|---|---|---|---|---|---|
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Sep 24, 2026 | From $453 Seen: 3 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Aug 27, 2026 | From $453 Seen: 6 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Aug 26, 2026 | From $453 Seen: 3 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Sep 25, 2026 | From $453 Seen: 11 hours ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: Jan 31, 2027 | From $499 Seen: 7 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Oct 6, 2026 | From $550 Seen: 10 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Sep 16, 2026 | From $550 Seen: 9 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Sep 9, 2026 | From $550 Seen: 5 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Oct 18, 2026 | From $550 Seen: 5 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Aug 3, 2026 | From $550 Seen: 3 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Aug 19, 2026 | From $550 Seen: 3 hours ago | |
| Los Angeles (LAX) | London (LHR) | One-way | Saver | Depart: Sep 1, 2026 | From $578 Seen: 7 hours ago | |
| Portland (PDX) | London (LHR) | One-way | Saver | Depart: Dec 6, 2026 | From $720 Seen: 10 hours ago | |
| Anchorage (ANC) | London (LHR) | One-way | Saver | Depart: Dec 2, 2026 | From $786 Seen: 12 hours ago | |
| Los Angeles (LAX) | London (LHR) | One-way | Saver | Depart: Jun 23, 2026 | From $866 Seen: 2 hours ago | |
| Los Angeles (LAX) | London (LHR) | One-way | Saver | Depart: May 24, 2026 | From $931 Seen: 2 hours ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: Mar 9, 2027 | From $1,053 Seen: 55 minutes ago | |
| San Francisco (SFO) | London (LHR) | One-way | Saver | Depart: May 28, 2026 | From $1,098 Seen: 3 hours ago | |
| Las Vegas (LAS) | London (LHR) | One-way | Saver | Depart: Jul 16, 2026 | From $1,805 Seen: 7 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.