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Find Flight Deals from United States to Portugal

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Portugal

(Round-trip)
Depart: Sun Mar 22 2015 Return: Sun Mar 29 2015 Trip spans 8 days
SATA International
SATA International
BOS
7:15p
PDL
12:00a
4h 45m
nonstop
PDL
11:00a
BOS
4:45p
5h 45m
nonstop
Depart: Thu Apr 2 2015 Return: Fri Apr 3 2015 Trip spans 2 days
SATA International
SATA International
BOS
4:50p
LIS
11:00p
6h 10m
nonstop
LIS
8:30a
BOS
5:45p
9h 15m
1 stop
Depart: Wed Aug 5 2015 Return: Thu Sep 10 2015 Trip spans 37 days
Turkish Airlines
Turkish Airlines
JFK
8:50a
OPO
5:20a
20h 30m
1 stop
OPO
11:20a
JFK
12:20p
25h 00m
1 stop
Depart: Tue Sep 22 2015 Return: Tue Oct 20 2015 Trip spans 29 days
Norwegian
Norwegian
JFK
5:55p
LIS
8:30a
14h 35m
1 stop
LIS
6:55a
JFK
11:30p
16h 35m
1 stop
Depart: Thu Apr 16 2015 Return: Tue Apr 21 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LIS
1:30a
30h 05m
1 stop
LIS
7:30a
IAD
7:10p
35h 40m
1 stop
Depart: Mon Sep 7 2015 Return: Wed Sep 16 2015 Trip spans 10 days
Multiple Airlines
Multiple Airlines
EWR
2:40p
LIS
10:55a
20h 15m
1 stop
LIS
4:25p
EWR
2:45p
22h 20m
1 stop
Depart: Mon Mar 30 2015 Return: Fri Apr 3 2015 Trip spans 5 days
American Airlines
American Airlines
LAX
3:45p
LIS
6:05a
14h 20m
1 stop
LIS
6:55a
LAX
3:21a
20h 26m
1 stop
Depart: Tue Jul 28 2015 Return: Thu Aug 27 2015 Trip spans 31 days
Turkish Airlines
Turkish Airlines
BOS
7:45p
OPO
5:20a
33h 35m
1 stop
OPO
11:20a
BOS
6:00p
30h 40m
1 stop
Depart: Sun Sep 27 2015 Return: Sun Oct 4 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
LGA
9:30a
LIS
11:00a
25h 30m
2 stops
LIS
2:45a
LGA
1:49p
35h 04m
2 stops
Depart: Sat Aug 22 2015 Return: Sun Aug 30 2015 Trip spans 9 days
Turkish Airlines
Turkish Airlines
ORD
6:15p
LIS
4:45a
34h 30m
1 stop
LIS
7:30a
ORD
7:25p
35h 55m
1 stop
Depart: Sat Mar 14 2015 Return: Mon Mar 16 2015 Trip spans 3 days
TAP Portugal
TAP Portugal
MIA
2:00p
LIS
10:00p
8h 00m
nonstop
LIS
7:00a
MIA
4:30p
9h 30m
nonstop
Change your search
Airports
Origin

New York
only $787
only $634
Chicago
$831
Los Angeles
$754
Newark
$752
Washington
$743
Miami
$905
Boston
$473
Destination

Porto
$634
Lisbon
$623
Ponta Delgada (Açores)
$473