Deal Brief
BOS to LHR is currently available as a round-trip redemption for 175,300 points plus $2061.89 in taxes. This option prices in First through alaska+qantas, with 1 seats currently showing.
Route: Best Round-Trip Deal: Boston to London
Route code: BOS -> LHR + LHR -> BOS
Program: Alaska Mileage Plan / qantas (Mixed)
Airline: British Airways
Trip style: 21 days
Travel window: AUG-4 to AUG-25
Available dates:
August 2026 (1) cash price unavailable
- AUG-4 to AUG-25
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. alaska+qantas baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Previous Price
New route — no history
Quality Score Breakdown · 90/100
Absolute Cost
35 / 50
Seat Availability
2 / 10
Cabin Tier
10 / 10
Freshness
1 / 1
Destination Tier
8 / 8
Tax Efficiency 48% cash
5 / 18
Airline Product
3 / 7
Additional Flight Information
Outbound · BOS → LHR
Booked via Alaska Mileage Plan
Airline: British Airways
Return · LHR → BOS
Booked via qantas
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.