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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: Fri May 1 2015 Return: Tue May 12 2015 Trip spans 12 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 Apr 30 2015 Return: Sun May 10 2015 Trip spans 11 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: Mon Mar 2 2015 Return: Mon Mar 16 2015 Trip spans 14 days
Multiple Airlines
Multiple Airlines
JFK
8:15a
OPO
10:55p
38h 40m
2 stops
OPO
2:30a
JFK
12:45p
34h 15m
2 stops
Depart: Tue Feb 10 2015 Return: Sat Feb 21 2015 Trip spans 12 days
TAP Portugal
TAP Portugal
BOS
5:15p
OPO
1:30p
20h 15m
2 stops
OPO
4:45p
BOS
4:45p
24h 00m
2 stops
Depart: Tue Mar 10 2015 Return: Tue Mar 24 2015 Trip spans 15 days
SATA International
SATA International
BOS
7:15p
OPO
3:45a
8h 30m
1 stop
OPO
3:00a
BOS
5:45p
14h 45m
2 stops
Depart: Thu Feb 5 2015 Return: Mon Feb 9 2015 Trip spans 5 days
Iberia
Iberia
JFK
12:25p
OPO
9:35p
9h 10m
1 stop
OPO
3:05a
JFK
8:10p
17h 05m
2 stops
Depart: Tue Jun 23 2015 Return: Sun Jun 28 2015 Trip spans 6 days
Turkish Airlines
Turkish Airlines
ORD
6:15p
OPO
4:20a
34h 05m
1 stop
OPO
11:20a
ORD
7:25p
32h 05m
1 stop
Depart: Mon Mar 9 2015 Return: Mon Mar 16 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
EWR
3:30p
OPO
7:40a
16h 10m
1 stop
OPO
5:55a
EWR
1:55p
32h 00m
1 stop
Depart: Mon Jan 19 2015 Return: Thu Mar 5 2015 Trip spans 46 days
Major Airline
Major Airline
JFK
12:00p
OPO
12:00a
12h 00m
1 stop
OPO
7:00a
JFK
6:00p
11h 00m
1 stop
Depart: Mon Jan 12 2015 Return: Thu Jan 29 2015 Trip spans 18 days
TAP Portugal
TAP Portugal
EWR
12:15p
OPO
7:20p
7h 05m
nonstop
OPO
6:45a
EWR
3:00p
8h 15m
nonstop
Depart: Wed Feb 25 2015 Return: Mon Mar 2 2015 Trip spans 6 days
Major Airline
Major Airline
ORD
11:00a
OPO
4:00a
17h 00m
1 stop
OPO
3:00a
ORD
3:00p
12h 00m
1 stop
Depart: Thu Mar 19 2015 Return: Mon Mar 30 2015 Trip spans 12 days
TAP Portugal
TAP Portugal
MIA
3:30p
OPO
6:30a
15h 00m
1 stop
OPO
3:30a
MIA
4:15p
12h 45m
1 stop
Depart: Sun Dec 28 2014 Return: Fri Jan 9 2015 Trip spans 13 days
Air Europa
Air Europa
JFK
5:05p
OPO
8:40a
15h 35m
1 stop
OPO
2:30a
JFK
8:05p
17h 35m
1 stop
Depart: Sun Mar 8 2015 Return: Tue Mar 17 2015 Trip spans 10 days
Iberia
Iberia
DCA
8:55a
OPO
11:35p
14h 40m
2 stops
OPO
8:15a
DCA
7:59p
35h 44m
2 stops
Depart: Tue Dec 30 2014 Return: Thu Jan 8 2015 Trip spans 10 days
Air Europa
Air Europa
MIA
4:50p
OPO
8:40a
15h 50m
1 stop
OPO
10:40a
MIA
7:50p
33h 10m
1 stop
Depart: Sun Feb 22 2015 Return: Mon Mar 23 2015 Trip spans 29 days
Multiple Airlines
Multiple Airlines
SFO
7:30p
OPO
7:05p
23h 35m
3 stops
OPO
4:05a
SFO
2:58a
22h 53m
3 stops
Depart: Tue Mar 31 2015 Return: Tue Apr 28 2015 Trip spans 29 days
TAP Portugal
TAP Portugal
ORD
6:25a
OPO
12:05a
17h 40m
2 stops
OPO
3:30a
ORD
9:43p
18h 13m
2 stops
Depart: Fri Apr 3 2015 Return: Sun Apr 12 2015 Trip spans 10 days
Multiple Airlines
Multiple Airlines
ORD
12:35p
OPO
1:45a
13h 10m
1 stop
OPO
1:00p
ORD
4:10p
27h 10m
1 stop
Depart: Fri Mar 27 2015 Return: Sat Apr 4 2015 Trip spans 9 days
Multiple Airlines
Multiple Airlines
LAX
4:00a
OPO
12:40a
20h 40m
2 stops
OPO
8:15a
LAX
1:58p
29h 43m
2 stops
Depart: Thu Apr 9 2015 Return: Sun Apr 19 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
ATL
2:20a
OPO
2:45a
24h 25m
2 stops
OPO
1:00p
ATL
8:09p
31h 09m
2 stops
Change your search
Airports
Origin

New York City
$679
San Francisco
$1090
Chicago
$879
Atlanta
$1324
Los Angeles
$1294
Newark
$884
Washington
$1073
Miami
$978
Boston
$689
Destination

Porto
$679