Find Cheap Flights from Porto to United States

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights from Porto to United States

(Round-trip)
Depart: Tue Dec 5 2017 Return: Mon Dec 11 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
OPO
JFK
13h 15m
1 stop
JFK
OPO
11h 10m
1 stop
Depart: Mon Oct 30 2017 Return: Mon Nov 13 2017 Trip spans 15 days
SWISS
SWISS
OPO
MIA
28h 20m
1 stop
MIA
OPO
14h 45m
1 stop
Depart: Mon Oct 30 2017 Return: Mon Nov 6 2017 Trip spans 8 days
KLM
KLM
OPO
MIA
26h 40m
2 stops
MIA
OPO
13h 25m
1 stop
Depart: Mon Nov 27 2017 Return: Thu Dec 7 2017 Trip spans 11 days
British Airways
British Airways
OPO
JFK
29h 50m
1 stop
JFK
OPO
10h 25m
1 stop
Depart: Tue Oct 31 2017 Return: Wed Nov 8 2017 Trip spans 9 days
Air France
Air France
OPO
JFK
13h 55m
1 stop
JFK
OPO
11h 10m
1 stop
Depart: Tue Mar 27 2018 Return: Mon Apr 23 2018 Trip spans 28 days
Lufthansa
Lufthansa
OPO
EWR
14h 45m
1 stop
EWR
OPO
14h 45m
1 stop
Depart: Wed Dec 6 2017 Return: Sun Dec 10 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
OPO
JFK
15h 40m
1 stop
JFK
OPO
15h 10m
1 stop
Depart: Mon Jan 8 2018 Return: Mon Jan 15 2018 Trip spans 8 days
KLM
KLM
OPO
JFK
12h 25m
1 stop
JFK
OPO
11h 40m
1 stop
Depart: Mon Oct 2 2017 Return: Sun Oct 8 2017 Trip spans 7 days
British Airways
British Airways
OPO
JFK
27h 50m
1 stop
JFK
OPO
16h 55m
1 stop
Depart: Mon Oct 30 2017 Return: Thu Nov 16 2017 Trip spans 18 days
SWISS
SWISS
OPO
MIA
28h 20m
1 stop
MIA
OPO
34h 00m
1 stop
Depart: Thu Nov 2 2017 Return: Wed Nov 8 2017 Trip spans 7 days
Air France
Air France
OPO
JFK
16h 25m
1 stop
JFK
OPO
11h 10m
1 stop
Depart: Fri Nov 10 2017 Return: Sun Nov 19 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
OPO
MIA
12h 50m
1 stop
MIA
OPO
12h 20m
1 stop
Depart: Wed Mar 28 2018 Return: Mon Apr 23 2018 Trip spans 27 days
Lufthansa
Lufthansa
OPO
EWR
14h 45m
1 stop
EWR
OPO
14h 45m
1 stop
Depart: Fri Dec 8 2017 Return: Wed Dec 13 2017 Trip spans 6 days
British Airways
British Airways
OPO
MIA
30h 25m
2 stops
MIA
OPO
18h 01m
2 stops
Depart: Fri Mar 30 2018 Return: Fri Apr 20 2018 Trip spans 22 days
KLM
KLM
OPO
EWR
14h 24m
1 stop
EWR
OPO
11h 31m
1 stop
Depart: Wed Nov 1 2017 Return: Wed Nov 8 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
OPO
JFK
11h 30m
1 stop
JFK
OPO
11h 25m
1 stop
Depart: Thu Dec 14 2017 Return: Mon Jan 8 2018 Trip spans 26 days
SWISS
SWISS
OPO
EWR
18h 30m
1 stop
EWR
OPO
33h 40m
1 stop
Depart: Wed Mar 28 2018 Return: Mon Apr 23 2018 Trip spans 27 days
Lufthansa
Lufthansa
OPO
EWR
14h 45m
1 stop
EWR
OPO
14h 45m
1 stop
Depart: Tue Oct 3 2017 Return: Sun Oct 8 2017 Trip spans 6 days
British Airways
British Airways
OPO
JFK
27h 45m
1 stop
JFK
OPO
16h 55m
1 stop
Depart: Sun Dec 24 2017 Return: Tue Jan 2 2018 Trip spans 10 days
KLM
KLM
OPO
JFK
30h 33m
1 stop
JFK
OPO
17h 05m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Porto
$395
Destination

New York
$395
Newark
$427
Miami
$397