Deal Brief
IAD to LHR is currently available as a round-trip redemption for 294,200 points plus $2468.63 in taxes. This option prices in First through qantas+alaska, with 1 seats currently showing.
Route: Best Round-Trip Deal: Washington, DC to London
Route code: IAD -> LHR + LHR -> IAD
Program: qantas / Alaska Mileage Plan (Mixed)
Airline: British Airways
Trip style: 13 days
Travel window: MAY-27 to JUN-9
Available dates:
May 2026 (1) cash price unavailable
- MAY-27 to JUN-9
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. qantas+alaska baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Previous Price
New route — no history
Quality Score Breakdown · 55/100
Absolute Cost
20 / 50
Seat Availability
2 / 10
Cabin Tier
10 / 10
Freshness
0 / 1
Destination Tier
0 / 8
Tax Efficiency 39% cash
7 / 18
Airline Product
3 / 7
Additional Flight Information
Outbound · IAD → LHR
Booked via qantas
Airline: British Airways
Return · LHR → IAD
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.