Deal Brief
SEA to LHR is currently available as a round-trip redemption for 236,500 points plus $956.53 in taxes. This option prices in First through american+alaska, with 1 seats currently showing. This is 3% below the previously tracked price.
Route: Best Round-Trip Deal: Seattle to London
Route code: SEA -> LHR + LHR -> SEA
Program: American AAdvantage / Alaska Mileage Plan (Mixed)
Trip style: One week (Sunday-Monday)
Travel window: APR-26 to MAY-4
Available dates:
April 2026 (1) cash price unavailable
- APR-26 to MAY-4
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. american+alaska baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Previous Price
243,000 pts
↓ 3%
Quality Score Breakdown · 90/100
Absolute Cost
35 / 50
Seat Availability
2 / 10
Cabin Tier
10 / 10
Freshness
0 / 1
Destination Tier
8 / 8
Tax Efficiency 24% cash
11 / 18
Airline Product
3 / 7
Additional Flight Information
Outbound · SEA → LHR
Booked via American AAdvantage
Return · LHR → SEA
Booked via Alaska Mileage Plan
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.