Deal Brief
IAD to LHR is currently available as a round-trip redemption for 81,750 points plus taxes not reported by program. This option prices in Premium Economy through british+alaska, with strong seat availability.
Route: Best Round-Trip Deal: Washington, DC to London
Route code: IAD -> LHR + LHR -> IAD
Program: british / Alaska Mileage Plan (Mixed)
Airline: British Airways
Trip style: One week (Sunday-Saturday)
Travel window: JAN-31 to FEB-6
Available dates:
January 2027 (1) cash price unavailable
- JAN-31 to FEB-6
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. british+alaska baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Quality Score Breakdown · 41/100
Absolute Cost
12 / 50
Seat Availability
10 / 10
Cabin Tier
4 / 10
Freshness
1 / 1
Destination Tier
0 / 8
Tax Efficiency 49% cash
4 / 18
Airline Product
1 / 7
Additional Flight Information
Outbound · IAD → LHR
Booked via british
Airline: British Airways
Return · LHR → IAD
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.