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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: Fri Feb 6 2015 Return: Tue Feb 10 2015 Trip spans 5 days
SATA International
SATA International
BOS
5:15p
PDL
10:00p
4h 45m
nonstop
PDL
10:00a
BOS
3:45p
5h 45m
nonstop
Depart: Thu Apr 2 2015 Return: Thu Apr 9 2015 Trip spans 8 days
SATA International
SATA International
BOS
4:50p
LIS
11:00p
6h 10m
nonstop
LIS
11:15a
BOS
6:30p
7h 15m
nonstop
Depart: Wed Apr 22 2015 Return: Thu May 14 2015 Trip spans 23 days
Multiple Airlines
Multiple Airlines
PHL
4:35p
LIS
11:00p
30h 25m
1 stop
LIS
11:15a
PHL
9:02a
21h 47m
1 stop
Depart: Wed May 20 2015 Return: Thu Jun 18 2015 Trip spans 30 days
Multiple Airlines
Multiple Airlines
DCA
4:00p
LIS
11:00p
31h 00m
1 stop
LIS
11:15a
DCA
11:29p
12h 14m
1 stop
Depart: Thu Feb 12 2015 Return: Wed Feb 18 2015 Trip spans 7 days
Turkish Airlines
Turkish Airlines
ORD
4:50p
LIS
4:15a
35h 25m
1 stop
LIS
11:15a
ORD
6:50p
31h 35m
1 stop
Depart: Mon Jun 1 2015 Return: Sun Jun 7 2015 Trip spans 7 days
Air Europa
Air Europa
MIA
5:35p
LIS
6:00a
12h 25m
1 stop
LIS
7:30a
MIA
7:35p
12h 05m
1 stop
Depart: Mon May 25 2015 Return: Tue Jun 9 2015 Trip spans 16 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 Jul 28 2015 Return: Tue Sep 1 2015 Trip spans 36 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: Sat May 2 2015 Return: Fri May 8 2015 Trip spans 7 days
Air Europa
Air Europa
JFK
6:05p
LIS
6:00a
11h 55m
1 stop
LIS
7:30a
JFK
9:05p
13h 35m
1 stop
Depart: Mon Jul 20 2015 Return: Wed Jul 29 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
LIS
5:45a
34h 20m
1 stop
LIS
7:30a
IAD
7:10p
35h 40m
1 stop
Change your search
Airports
Origin

New York
$667
Chicago
$660
Philadelphia
$602
Washington
only $963
only $636
Miami
$666
Boston
$307
Destination

Porto
$667
Lisbon
$477
Ponta Delgada (Açores)
$307