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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Book cheap flights from Portugal to United States

(Round-trip)
Depart: Fri Oct 20 2017 Return: Mon Oct 30 2017 Trip spans 11 days
Finnair
Finnair
LIS
MIA
13h 45m
1 stop
MIA
LIS
20h 30m
1 stop
Depart: Mon Nov 13 2017 Return: Wed Nov 22 2017 Trip spans 10 days
British Airways
British Airways
LIS
JFK
12h 15m
1 stop
JFK
LIS
17h 10m
1 stop
Depart: Wed Nov 1 2017 Return: Fri Nov 10 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
OPO
EWR
40h 38m
2 stops
EWR
OPO
16h 30m
1 stop
Depart: Mon Oct 2 2017 Return: Thu Oct 26 2017 Trip spans 25 days
KLM
KLM
LIS
JFK
7h 58m
nonstop
JFK
LIS
6h 57m
nonstop
Depart: Wed Aug 30 2017 Return: Wed Oct 4 2017 Trip spans 36 days
United
United
LIS
EWR
16h 16m
1 stop
EWR
LIS
7h 00m
nonstop
Depart: Thu Aug 24 2017 Return: Thu Aug 31 2017 Trip spans 8 days
SWISS
SWISS
OPO
EWR
29h 40m
1 stop
EWR
OPO
21h 15m
1 stop
Depart: Thu Sep 14 2017 Return: Sun Sep 17 2017 Trip spans 4 days
American Airlines
American Airlines
LIS
LGA
12h 23m
1 stop
LGA
LIS
16h 15m
2 stops
Depart: Mon Aug 28 2017 Return: Wed Oct 4 2017 Trip spans 38 days
Iberia
Iberia
LIS
BOS
12h 45m
1 stop
BOS
LIS
10h 35m
1 stop
Depart: Thu Aug 24 2017 Return: Wed Sep 13 2017 Trip spans 21 days
Major Airline
Major Airline
LIS
FLL
14h 28m
1 stop
FLL
LIS
11h 22m
1 stop
Depart: Thu Dec 28 2017 Return: Tue Jan 2 2018 Trip spans 6 days
Lufthansa
Lufthansa
LIS
EWR
17h 50m
2 stops
EWR
LIS
6h 50m
nonstop
Depart: Fri Jun 23 2017 Return: Sun Jun 25 2017 Trip spans 3 days
Air Europa
Air Europa
LIS
BOS
14h 20m
1 stop
BOS
LIS
14h 20m
1 stop
Depart: Tue Sep 26 2017 Return: Thu Nov 2 2017 Trip spans 38 days
Air France
Air France
LIS
SFO
20h 20m
1 stop
SFO
LIS
19h 10m
2 stops
Depart: Tue Jul 25 2017 Return: Thu Aug 3 2017 Trip spans 10 days
Royal Air Maroc
Royal Air Maroc
LIS
JFK
13h 10m
1 stop
JFK
LIS
10h 00m
1 stop
Depart: Tue Oct 3 2017 Return: Sun Oct 8 2017 Trip spans 6 days
Finnair
Finnair
LIS
JFK
11h 20m
1 stop
JFK
LIS
19h 15m
1 stop
Depart: Wed Nov 29 2017 Return: Wed Dec 6 2017 Trip spans 8 days
British Airways
British Airways
LIS
EWR
16h 20m
1 stop
EWR
LIS
18h 40m
1 stop
Depart: Thu Jul 20 2017 Return: Mon Aug 7 2017 Trip spans 19 days
Azores Airlines
Azores Airlines
LIS
BOS
31h 10m
1 stop
BOS
LIS
21h 00m
1 stop
Depart: Thu Sep 7 2017 Return: Wed Sep 20 2017 Trip spans 14 days
Finnair
Finnair
LIS
EWR
13h 35m
1 stop
EWR
LIS
23h 50m
1 stop
Depart: Sun Dec 3 2017 Return: Wed Dec 13 2017 Trip spans 11 days
British Airways
British Airways
LIS
JFK
23h 20m
1 stop
JFK
LIS
20h 40m
1 stop
Depart: Fri Dec 29 2017 Return: Wed Jan 3 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
LIS
JFK
11h 15m
1 stop
JFK
LIS
14h 10m
1 stop
Depart: Thu Jul 27 2017 Return: Thu Aug 24 2017 Trip spans 29 days
Air Canada
Air Canada
LIS
EWR
23h 40m
2 stops
EWR
LIS
32h 10m
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.

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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
$396
Lisbon
$372
Destination

San Francisco
$601
New York
only $476
only $377
Fort Lauderdale
$500
Newark
$379
Miami
$372
Boston
$493