Find Cheap Flights from Portugal 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.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Portugal to United States

(Round-trip)
Depart: Sat Nov 18 2017 Return: Sun Nov 26 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
OPO
JFK
36h 35m
2 stops
JFK
OPO
15h 10m
1 stop
Depart: Mon Jan 15 2018 Return: Sun Jan 21 2018 Trip spans 7 days
Finnair
Finnair
LIS
JFK
16h 50m
1 stop
JFK
LIS
19h 10m
1 stop
Depart: Sat Nov 18 2017 Return: Sun Nov 26 2017 Trip spans 9 days
British Airways
British Airways
LIS
JFK
15h 00m
1 stop
JFK
LIS
13h 30m
1 stop
Depart: Thu Nov 30 2017 Return: Wed Dec 6 2017 Trip spans 7 days
Air France
Air France
LIS
JFK
14h 05m
1 stop
JFK
LIS
11h 15m
1 stop
Depart: Mon Nov 20 2017 Return: Wed Dec 6 2017 Trip spans 17 days
SWISS
SWISS
LIS
JFK
27h 35m
1 stop
JFK
LIS
11h 35m
1 stop
Depart: Thu Mar 1 2018 Return: Thu Mar 8 2018 Trip spans 8 days
KLM
KLM
LIS
MIA
14h 15m
1 stop
MIA
LIS
17h 25m
1 stop
Depart: Sat Jan 13 2018 Return: Sat Jan 27 2018 Trip spans 15 days
Multiple Airlines
Multiple Airlines
LIS
MIA
12h 55m
1 stop
MIA
LIS
15h 45m
1 stop
Depart: Sat Jan 13 2018 Return: Sun Jan 28 2018 Trip spans 16 days
Finnair
Finnair
LIS
MIA
12h 55m
1 stop
MIA
LIS
21h 45m
1 stop
Depart: Sun Mar 4 2018 Return: Thu Mar 8 2018 Trip spans 5 days
British Airways
British Airways
OPO
JFK
28h 30m
1 stop
JFK
OPO
10h 25m
1 stop
Depart: Wed Nov 22 2017 Return: Wed Dec 6 2017 Trip spans 15 days
SWISS
SWISS
LIS
JFK
30h 40m
1 stop
JFK
LIS
11h 35m
1 stop
Depart: Tue Jan 16 2018 Return: Tue Jan 30 2018 Trip spans 15 days
Air France
Air France
LIS
MIA
17h 00m
1 stop
MIA
LIS
21h 10m
1 stop
Depart: Mon Oct 30 2017 Return: Sun Nov 5 2017 Trip spans 7 days
KLM
KLM
LIS
MIA
14h 15m
1 stop
MIA
LIS
13h 30m
1 stop
Depart: Fri Dec 1 2017 Return: Sun Dec 10 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
OPO
JFK
15h 30m
2 stops
JFK
OPO
15h 10m
1 stop
Depart: Mon Jan 15 2018 Return: Sun Jan 21 2018 Trip spans 7 days
Finnair
Finnair
LIS
MIA
13h 45m
1 stop
MIA
LIS
23h 40m
1 stop
Depart: Fri Feb 23 2018 Return: Sun Mar 4 2018 Trip spans 10 days
British Airways
British Airways
LIS
MIA
15h 30m
1 stop
MIA
LIS
23h 45m
1 stop
Depart: Mon Jan 15 2018 Return: Thu Jan 25 2018 Trip spans 11 days
Air France
Air France
LIS
MIA
17h 00m
1 stop
MIA
LIS
20h 40m
2 stops
Depart: Wed Nov 1 2017 Return: Sun Nov 5 2017 Trip spans 5 days
KLM
KLM
LIS
MIA
27h 55m
1 stop
MIA
LIS
13h 30m
1 stop
Depart: Thu Nov 9 2017 Return: Tue Nov 21 2017 Trip spans 13 days
SWISS
SWISS
OPO
MIA
15h 55m
1 stop
MIA
OPO
14h 50m
1 stop
Depart: Mon Nov 13 2017 Return: Wed Nov 29 2017 Trip spans 17 days
Multiple Airlines
Multiple Airlines
LIS
MIA
29h 10m
1 stop
MIA
LIS
30h 25m
2 stops
Depart: Mon Jan 15 2018 Return: Sun Jan 21 2018 Trip spans 7 days
Finnair
Finnair
LIS
EWR
13h 20m
1 stop
EWR
LIS
19h 25m
1 stop
* 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.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Porto
$379
Lisbon
$391
Destination

New York
$379
Newark
$417
Miami
$391