Deal Brief
IAD to LIS is currently available as a round-trip redemption for 63,500 points plus $85.94 in taxes. This option prices in Economy through united+velocity, with 8 seats available.
Route: Best Round-Trip Deal: Washington, DC to Lisbon
Route code: IAD -> LIS + LIS -> IAD
Program: United MileagePlus / Virgin Australia Velocity (Mixed)
Airline: United Airlines
Trip style: 9 days
Travel window: Multiple
Available dates:
July 2026 (1) cash price unavailable
- JUL-13 to JUL-22
August 2026 (2) cash price unavailable
- AUG-24 to SEP-2
- AUG-25 to SEP-3
October 2026 (3) cash price unavailable
- OCT-22 to OCT-31
- OCT-26 to NOV-4
- OCT-27 to NOV-5
November 2026 (18) cash price unavailable
- NOV-2 to NOV-11
- NOV-3 to NOV-12
- NOV-5 to NOV-14
- NOV-9 to NOV-18
- NOV-10 to NOV-19
- NOV-11 to NOV-20
- NOV-12 to NOV-21
- NOV-14 to NOV-23
- NOV-15 to NOV-24
- NOV-16 to NOV-25
- NOV-17 to NOV-26
- NOV-22 to DEC-1
- NOV-23 to DEC-2
- NOV-24 to DEC-3
- NOV-25 to DEC-4
- NOV-26 to DEC-5
- NOV-28 to DEC-7
- NOV-29 to DEC-8
December 2026 (6) cash price unavailable
- DEC-1 to DEC-10
- DEC-3 to DEC-12
- DEC-7 to DEC-16
- DEC-29 to JAN-7
- DEC-30 to JAN-8
- DEC-31 to JAN-9
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. united+velocity baseline: 1.3¢/pt.
Additional Deal Information
Data Last Refreshed
Quality Score Breakdown · 73/100
Absolute Cost
28 / 50
Seat Availability
10 / 10
Cabin Tier
0 / 10
Freshness
1 / 1
Destination Tier
0 / 8
Tax Efficiency 9% cash
16 / 18
Airline Product
0 / 7
Additional Flight Information
Outbound · IAD → LIS
Booked via United MileagePlus
Airline: United Airlines
Return · LIS → IAD
Booked via Virgin Australia Velocity
Airline: United Airlines
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.