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Find Deals on Flights 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 Nov 6 2015 Return: Fri Nov 13 2015 Trip spans 8 days
SATA International
SATA International
BOS
PDL
4h 45m
nonstop
PDL
BOS
5h 45m
nonstop
Depart: Sun Nov 1 2015 Return: Sun Nov 8 2015 Trip spans 8 days
SATA International
SATA International
BOS
LIS
21h 05m
1 stop
LIS
BOS
10h 05m
2 stops
Depart: Fri Oct 16 2015 Return: Sun Oct 25 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
JFK
OPO
33h 25m
1 stop
OPO
JFK
35h 30m
1 stop
Depart: Tue Nov 3 2015 Return: Mon Nov 9 2015 Trip spans 7 days
Turkish Airlines
Turkish Airlines
MIA
LIS
31h 55m
1 stop
LIS
MIA
37h 05m
1 stop
Depart: Sun Sep 27 2015 Return: Sun Oct 18 2015 Trip spans 22 days
Turkish Airlines
Turkish Airlines
BOS
OPO
33h 40m
1 stop
OPO
BOS
30h 50m
1 stop
Depart: Mon Nov 2 2015 Return: Wed Nov 18 2015 Trip spans 17 days
Turkish Airlines
Turkish Airlines
JFK
LIS
16h 00m
1 stop
LIS
JFK
30h 40m
1 stop
Depart: Thu Oct 29 2015 Return: Sat Nov 7 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
OPO
33h 55m
1 stop
OPO
IAD
32h 00m
1 stop
Depart: Sat Oct 31 2015 Return: Mon Nov 9 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
IAD
LIS
29h 55m
1 stop
LIS
IAD
31h 10m
1 stop
Depart: Thu Nov 5 2015 Return: Tue Nov 10 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
ORD
LIS
30h 35m
1 stop
LIS
ORD
36h 25m
1 stop
Depart: Wed Sep 30 2015 Return: Tue Oct 6 2015 Trip spans 7 days
American Airlines
American Airlines
PHL
LIS
18h 35m
1 stop
LIS
PHL
8h 00m
nonstop
Depart: Tue Sep 8 2015 Return: Tue Sep 22 2015 Trip spans 15 days
American Airlines
American Airlines
EWR
LIS
18h 45m
1 stop
LIS
EWR
12h 37m
1 stop
Depart: Sun Sep 6 2015 Return: Sat Sep 12 2015 Trip spans 7 days
Turkish Airlines
Turkish Airlines
SFO
LIS
36h 35m
1 stop
LIS
SFO
32h 40m
1 stop
Depart: Fri Nov 20 2015 Return: Sun Nov 29 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
LAX
LIS
31h 40m
1 stop
LIS
LAX
32h 30m
1 stop
Depart: Mon Aug 24 2015 Return: Wed Sep 2 2015 Trip spans 10 days
Aer Lingus
Aer Lingus
JFK
FAO
27h 15m
1 stop
FAO
JFK
29h 00m
1 stop
Depart: Thu Nov 19 2015 Return: Sat Nov 28 2015 Trip spans 10 days
Turkish Airlines
Turkish Airlines
HOU
LIS
31h 55m
1 stop
LIS
HOU
32h 25m
1 stop
Depart: Mon Sep 21 2015 Return: Tue Sep 29 2015 Trip spans 9 days
United
United
DFW
LIS
12h 30m
1 stop
LIS
DFW
14h 20m
1 stop
Depart: Fri Sep 18 2015 Return: Sun Sep 20 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
LIS
19h 05m
2 stops
LIS
DCA
10h 41m
1 stop
Depart: Wed Oct 28 2015 Return: Wed Nov 4 2015 Trip spans 8 days
United
United
RDU
LIS
16h 17m
1 stop
LIS
RDU
20h 55m
2 stops
Depart: Fri Aug 28 2015 Return: Tue Sep 8 2015 Trip spans 12 days
Air Canada
Air Canada
LGA
LIS
23h 35m
1 stop
LIS
LGA
14h 09m
1 stop
Depart: Wed Oct 14 2015 Return: Mon Oct 26 2015 Trip spans 13 days
United
United
MCO
LIS
16h 45m
2 stops
LIS
MCO
18h 28m
1 stop
Airports
Origin

New York
only $640
only $914
Raleigh
$895
Chicago
$731
Washington
only $698
only $887
Miami
$674
San Francisco
$813
Orlando
$930
Los Angeles
$813
Newark
$782
Dallas
$878
Philadelphia
$740
Houston
$868
Boston
$428
Destination

Porto
$640
Lisbon
$596
Faro
$841
Ponta Delgada (Açores)
$428