Flights from Boston to Lisbon with United Airlines

Our cheapest offers for flights from Boston to Lisbon

Here you can compare cheap flights from Boston (BOS) to Lisbon (LIS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Lisbon. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Boston
Lisbon
Outbound
09/25/25
1 Stopover (YYZ)
UA8471, UA8655
13h 20min
Return
10/05/25
1 Stopover (FRA)
LH1173, LH0422
14h 20min
United Airlines ?
$651
Boston
Lisbon
Outbound
09/25/25
1 Stopover (YYZ)
UA8529, UA8655
24h 05min
Return
10/05/25
1 Stopover (FRA)
LH1171, LH0422
15h 55min
United Airlines
$588
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Boston - Lisbon

Roundtrip from 519,90 $
Flight duration min. 06:20 / max. 06:50
Return flight duration min. 07:35/ max. 08:15
Distance 5130 km
Flights per week 8
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport Lisbon (LIS)
Destination country Flights to Portugal
Alternative routes to Portugal
Alternative flights to Lisbon
Flight destinations with a similar price
Flight destinations with a similar price