Deal Brief
BOS to LIS is currently available as a round-trip redemption for 80,000 points plus $75.03 in taxes. This option prices in Economy through United MileagePlus, with strong seat availability.
Route: Best Round-Trip Deal: Boston to Lisbon
Route code: BOS -> LIS + LIS -> BOS
Program: United MileagePlus
Trip style: 8 days
Travel window: Multiple
Available dates:
November 2026 (1) cash price unavailable
- NOV-23 to DEC-1
December 2026 (2) cash price unavailable
- DEC-30 to JAN-7
- DEC-31 to JAN-8
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 · 64/100
Absolute Cost
20 / 50
Seat Availability
10 / 10
Cabin Tier
0 / 10
Freshness
1 / 1
Destination Tier
0 / 8
Tax Efficiency 6% cash
17 / 18
Airline Product
0 / 7