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Find Flight Deals from United States to Porto

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

Book cheap flights to Porto

(Round-trip)
Depart: Sun Feb 8 2015 Return: Thu Feb 12 2015 Trip spans 5 days
SATA International
SATA International
BOS
5:15p
OPO
1:45a
8h 30m
1 stop
OPO
3:10p
BOS
4:45p
25h 35m
2 stops
Depart: Mon May 4 2015 Return: Thu May 14 2015 Trip spans 11 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: Thu May 14 2015 Return: Sun May 24 2015 Trip spans 11 days
Turkish Airlines
Turkish Airlines
IAD
7:25p
OPO
5:20a
33h 55m
1 stop
OPO
11:20a
IAD
7:10p
31h 50m
1 stop
Depart: Mon Jan 12 2015 Return: Mon Jan 26 2015 Trip spans 15 days
Multiple Airlines
Multiple Airlines
EWR
1:30p
OPO
5:40a
16h 10m
1 stop
OPO
4:55a
EWR
12:55p
32h 00m
1 stop
Depart: Thu Feb 12 2015 Return: Thu Feb 19 2015 Trip spans 8 days
Major Airline
Major Airline
MIA
12:00p
OPO
9:00a
21h 00m
1 stop
OPO
2:00a
MIA
3:00p
13h 00m
1 stop
Depart: Wed Feb 18 2015 Return: Wed Feb 25 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
ATL
5:55a
OPO
6:35a
24h 40m
2 stops
OPO
3:05a
ATL
8:49p
17h 44m
2 stops
Depart: Mon Feb 23 2015 Return: Mon Mar 23 2015 Trip spans 28 days
Multiple Airlines
Multiple Airlines
SFO
1:00a
OPO
3:35a
26h 35m
3 stops
OPO
4:05a
SFO
2:58a
22h 53m
3 stops
Depart: Wed Feb 4 2015 Return: Thu Feb 12 2015 Trip spans 9 days
Multiple Airlines
Multiple Airlines
SJC
2:33a
OPO
3:35a
25h 02m
2 stops
OPO
2:10p
SJC
2:14a
36h 04m
2 stops
Depart: Mon May 11 2015 Return: Mon May 25 2015 Trip spans 15 days
Multiple Airlines
Multiple Airlines
BWI
11:25a
OPO
2:45a
15h 20m
2 stops
OPO
4:05a
BWI
12:44a
20h 39m
2 stops
Depart: Fri May 8 2015 Return: Wed May 20 2015 Trip spans 13 days
Major Airline
Major Airline
DFW
7:00a
OPO
9:00a
26h 00m
2 stops
OPO
4:00p
DFW
4:00p
24h 00m
1 stop
Depart: Fri Mar 27 2015 Return: Sat Apr 4 2015 Trip spans 9 days
Multiple Airlines
Multiple Airlines
ORD
1:55p
OPO
2:40a
12h 45m
1 stop
OPO
4:35a
ORD
11:10p
18h 35m
2 stops
Depart: Thu Mar 26 2015 Return: Mon Apr 20 2015 Trip spans 26 days
Major Airline
Major Airline
LAX
7:00p
OPO
5:00a
34h 00m
2 stops
OPO
2:00a
LAX
8:00p
18h 00m
1 stop
Depart: Thu Apr 9 2015 Return: Thu Apr 16 2015 Trip spans 8 days
Iberia
Iberia
DCA
7:50a
OPO
7:30a
23h 40m
2 stops
OPO
8:15a
DCA
12:17a
16h 02m
2 stops
Change your search
Airports
Origin

New York City
$712
San Francisco
$1086
Baltimore
$1143
Atlanta
$1027
Chicago
$1151
Los Angeles
$1172
Newark
$885
Dallas
$1146
Washington
only $808
only $1302
San Jose
$1125
Boston
$701
Miami
$963
Destination

Porto
$701