Book Cheap Flights to United Kingdom on Alaska Airlines
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1 Passenger
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Find United Kingdom flight deals.*
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Seattle (SEA)to
London (LHR)Depart: Nov 9, 2026
From
$809
Seen: 6 hours ago
One-way
Main
*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 offers for plane tickets to United Kingdom.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Feb 4, 2027 | From $375 Seen: 12 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Dec 7, 2026 | From $634 Seen: 1 hour ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Nov 15, 2026 | From $689 Seen: 10 hours ago | |
| Seattle (SEA) | London (LHR) | One-way | Saver | Depart: Nov 12, 2026 | From $739 Seen: 11 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.