Deal Brief
IAD to LIS is currently available as a round-trip redemption for 100,000 points plus $69.93 in taxes. This option prices in Premium Economy through United MileagePlus, with strong seat availability. This is 33% below the previously tracked price.
Route: Best Round-Trip Deal: Washington, DC to Lisbon
Route code: IAD -> LIS + LIS -> IAD
Program: United MileagePlus
Airline: United Airlines
Trip style: 17 days
Travel window: AUG-9 to AUG-26
Available dates:
August 2026 (1) cash price unavailable
- AUG-9 to AUG-26
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
Previous Price
150,000 pts
↓ 33%
Quality Score Breakdown · 88/100
Absolute Cost
28 / 50
Seat Availability
10 / 10
Cabin Tier
4 / 10
Freshness
0 / 1
Destination Tier
0 / 8
Tax Efficiency 5% cash
18 / 18
Airline Product
1 / 7