Deal Brief
SEA to LHR is currently available as a round-trip redemption for 75,000 points plus $962.83 in taxes. This option prices in Premium Economy through flyingblue+alaska, with strong seat availability. This is 76% below the previously tracked price.
Route: Best Round-Trip Deal: Seattle to London
Route code: SEA -> LHR + LHR -> SEA
Program: Flying Blue / Alaska Mileage Plan (Mixed)
Airline: British Airways
Trip style: 5 days
Travel window: JAN-7 to JAN-12
Available dates:
January 2027 (1) cash price unavailable
- JAN-7 to JAN-12
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. flyingblue+alaska baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Previous Price
309,500 pts
↓ 76%
Quality Score Breakdown · 52/100
Absolute Cost
12 / 50
Seat Availability
10 / 10
Cabin Tier
4 / 10
Freshness
0 / 1
Destination Tier
8 / 8
Tax Efficiency 50% cash
4 / 18
Airline Product
1 / 7
Additional Flight Information
Outbound · SEA → LHR
Booked via Flying Blue
Return · LHR → SEA
Booked via Alaska Mileage Plan
Airline: British Airways
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.