Deal Brief
SEA to LHR is currently available as a round-trip redemption for 127,500 points plus $436.93 in taxes. This option prices in Business through alaska+american, with 2 seats currently showing.
Route: Best Round-Trip Deal: Seattle to London
Route code: SEA -> LHR + LHR -> SEA
Program: Alaska Mileage Plan / American AAdvantage (Mixed)
Trip style: One week (Sunday-Monday)
Travel window: Multiple
Available dates:
April 2026 (1) cash price unavailable
- APR-26 to MAY-4
May 2026 (1) cash price unavailable
- MAY-2 to MAY-8
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. alaska+american baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Quality Score Breakdown · 75/100
Absolute Cost
35 / 50
Seat Availability
2 / 10
Cabin Tier
8 / 10
Freshness
0 / 1
Destination Tier
8 / 8
Tax Efficiency 21% cash
12 / 18
Airline Product
3 / 7
Additional Flight Information
Outbound · SEA → LHR
Booked via Alaska Mileage Plan
Return · LHR → SEA
Booked via American AAdvantage
Mixed booking: This round trip uses two different loyalty programs for the best combined price.
The booking program is where you redeem points. Different programs may price the same flight differently.