Fly nonstop from Boston to Lisbon for $500 round-trip on TAP Portugal.
Seen below, we found seats departing BOS on Monday, June 13, returning from LIS on Monday, June 20.
Other dates are also available for travel through mid-June.
See our fare details for booking info.
Need a room in Lisbon? Here's what's available for the above dates on Hotelwatchdog.