Cheap flights from Boston to Lisbon, Portugal for only $334 roundtrip with United Airlines and Swiss International Air Lines.
DEPART:
Boston, USA
ARRIVE:
Lisbon, Portugal
RETURN:
Boston, USA
DATES:
Availability from August to December 2021
31st Aug – 7th Sep
6th-13th Sep
14th-21st Sep
18th-25th Sep
4th-11th Oct
12th-19th Oct
22nd-29th Oct
13th-20th Nov
15th-22nd Nov
17th-24th Nov
23rd-30th Nov
25th Nov – 2nd Dec
29th Nov – 6th Dec
7th-14th Dec
13th-20th Dec
and more…
STOPS:
New York/Zurich
AIRLINES:
United Airlines
Swiss International Air Lines