Flights from Boston to Lisbon

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
Boston
Lisbon
Outbound
06/14/26
1 Stopover (PDL)
S40220, S40120
18h 55min
Return
-
Azores Airlines ?
$368
Boston
Lisbon
Outbound
02/13/26
1 Stopover (DUB)
EI0132, EI0482
12h 00min
Return
02/26/26
1 Stopover (DUB)
EI0483, EI0137
13h 09min
Aer Lingus Irish Airlines
$475
Best option
Boston
Lisbon
Outbound
03/07/26
direct
TP0216
06h 30min
Return
03/14/26
direct
TP0215
07h 55min
TAP Air Portugal
$512
Boston
Lisbon
Outbound
04/03/26
1 Stopover (IST)
TK0082, TK1759
37h 00min
Return
04/16/26
1 Stopover (IST)
TK1760, TK0081
31h 50min
Turkish Airlines
$660
Boston
Lisbon
Outbound
02/13/26
1 Stopover (DUB)
EI0132, EI0482
12h 00min
Return
02/26/26
1 Stopover (DUB)
EI0483, EI0137
13h 09min
Aer Lingus Irish Airlines
$478
Boston
Lisbon
Outbound
03/07/26
1 Stopover (EWR)
UA0570, UA0064
19h 40min
Return
03/14/26
1 Stopover (MUC)
UA8957, UA8902
17h 25min
United Airlines ?
$478
Boston
Lisbon
Outbound
03/07/26
1 Stopover (YUL)
AC8603, AC0812
22h 25min
Return
03/14/26
1 Stopover (MUC)
LH1781, LH0424
17h 25min
Air Canada
$484
Boston
Lisbon
Outbound
03/07/26
1 Stopover (YUL)
AC8603, AC0812
22h 25min
Return
03/14/26
1 Stopover (MUC)
LH1781, LH0424
17h 25min
Air Canada
$486
Boston
Lisbon
Outbound
02/13/26
1 Stopover (DUB)
EI0132, EI0482
12h 00min
Return
02/26/26
1 Stopover (DUB)
EI0483, EI0137
13h 09min
Aer Lingus Irish Airlines ?
$499
Boston
Lisbon
Outbound
02/13/26
1 Stopover (PHL)
AA4340, AY3794
12h 35min
Return
02/26/26
1 Stopover (MAD)
AY5564, AY5369
18h 20min
American Airlines, Finnair
$502
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to Lisbon

Favorite airline: Play
Play is the most popular airline for flights from Boston to Lisbon.
Play
27 %
Azores Airlines
18 %
TAP Portugal
18 %
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are $480.00 more expensive on this route.
non stop flight
1 stop
2 stops
06h 25min
20h 25min
29h 17min
US$823
US$343
US$990
Favourite connection: via Reykjavik-Keflavik
50 % of booked tickets on this route are for flights with a transfer in Reykjavik-Keflavik.
Route
bookings
1 stopover Reykjavik-Keflavik International
20h 25min, from US$343
50 %
1 stopover Ponta Delgada (Azores)
10h 50min, from US$764
33 %
1 stopover Istanbul
36h 30min, from US$671
17 %

Important flight information

Flight information: Boston - Lisbon

Cheapest outbound flight from US$367.80
Roundtrip from US$474.22
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