Deal Brief
IAD to LIS is currently available as a round-trip redemption for 176,000 points plus $69.73 in taxes. This option prices in Business through United MileagePlus, with strong seat availability.
Route: Best Round-Trip Deal: Washington, DC to Lisbon
Route code: IAD -> LIS + LIS -> IAD
Program: United MileagePlus
Airline: TAP Air Portugal
Trip style: 4 days
Travel window: Multiple
Available dates:
January 2027 (7) cash price unavailable
- JAN-10 to JAN-14
- JAN-11 to JAN-15
- JAN-15 to JAN-19
- JAN-16 to JAN-20
- JAN-18 to JAN-22
- JAN-23 to JAN-27
- JAN-24 to JAN-28
February 2027 (1) cash price unavailable
- FEB-2 to FEB-6
Cash fares are approximate round-trip prices via Travelpayouts. Point value = (cash fare − taxes) ÷ points. United MileagePlus baseline: 1.4¢/pt.
Additional Deal Information
Data Last Refreshed
Quality Score Breakdown · 78/100
Absolute Cost
35 / 50
Seat Availability
10 / 10
Cabin Tier
8 / 10
Freshness
1 / 1
Destination Tier
0 / 8
Tax Efficiency 3% cash
18 / 18
Airline Product
3 / 7