Deal Brief
SEA to LHR is currently available as a round-trip redemption for 39,000 points plus $320.42 in taxes. This option prices in Economy through alaska+virginatlantic, with strong seat availability.
Route: Best Round-Trip Deal: Seattle to London
Route code: SEA -> LHR + LHR -> SEA
Program: Alaska Mileage Plan / Virgin Atlantic Flying Club (Mixed)
Airline: Alaska Airlines / Delta Air Lines, Virgin Atlantic
Trip style: 4 days
Travel window: Multiple
Available dates:
August 2026 (2) cash price unavailable
- AUG-29 to SEP-2
- AUG-30 to SEP-3
September 2026 (15) cash price unavailable
- SEP-3 to SEP-7
- SEP-4 to SEP-8
- SEP-5 to SEP-9
- SEP-6 to SEP-10
- SEP-11 to SEP-15
- SEP-12 to SEP-16
- SEP-13 to SEP-17
- SEP-17 to SEP-21
- SEP-18 to SEP-22
- SEP-19 to SEP-23
- SEP-20 to SEP-24
- SEP-25 to SEP-29
- SEP-26 to SEP-30
- SEP-27 to OCT-1
- SEP-28 to OCT-2
October 2026 (15) cash price unavailable
- OCT-2 to OCT-6
- OCT-3 to OCT-7
- OCT-4 to OCT-8
- OCT-5 to OCT-9
- OCT-8 to OCT-12
- OCT-9 to OCT-13
- OCT-10 to OCT-14
- OCT-11 to OCT-15
- OCT-12 to OCT-16
- OCT-13 to OCT-17
- OCT-14 to OCT-18
- OCT-15 to OCT-19
- OCT-16 to OCT-20
- OCT-17 to OCT-21
- OCT-18 to OCT-22
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. alaska+virginatlantic baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Quality Score Breakdown · 72/100
Absolute Cost
28 / 50
Seat Availability
10 / 10
Cabin Tier
0 / 10
Freshness
1 / 1
Destination Tier
8 / 8
Tax Efficiency 39% cash
7 / 18
Airline Product
0 / 7
Additional Flight Information
Outbound · SEA → LHR
Booked via Alaska Mileage Plan
Airline: Alaska Airlines
Return · LHR → SEA
Booked via Virgin Atlantic Flying Club
Airline: Delta Air Lines, Virgin Atlantic
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.