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: Mon Jan 15 2018 Return: Wed Jan 24 2018 Trip spans 10 days
TAP Portugal
TAP Portugal
LIS
MIA
9h 25m
nonstop
MIA
LIS
8h 00m
nonstop
Depart: Tue Sep 26 2017 Return: Mon Oct 16 2017 Trip spans 21 days
Finnair
Finnair
LIS
JFK
17h 00m
1 stop
JFK
LIS
19h 15m
1 stop
Depart: Mon Dec 4 2017 Return: Tue Dec 12 2017 Trip spans 9 days
British Airways
British Airways
LIS
JFK
16h 50m
2 stops
JFK
LIS
20h 45m
1 stop
Depart: Fri Dec 15 2017 Return: Mon Jan 8 2018 Trip spans 25 days
KLM
KLM
OPO
MIA
32h 00m
1 stop
MIA
OPO
22h 30m
2 stops
Depart: Mon Nov 6 2017 Return: Mon Nov 20 2017 Trip spans 15 days
Air Canada
Air Canada
LIS
LGA
17h 00m
2 stops
LGA
LIS
11h 45m
1 stop
Depart: Wed Dec 20 2017 Return: Wed Jan 3 2018 Trip spans 15 days
Iberia
Iberia
OPO
JFK
15h 40m
1 stop
JFK
OPO
9h 05m
1 stop
Depart: Wed Oct 4 2017 Return: Wed Oct 18 2017 Trip spans 15 days
Air France
Air France
LIS
MIA
22h 10m
2 stops
MIA
LIS
14h 08m
1 stop
Depart: Mon Dec 18 2017 Return: Tue Dec 26 2017 Trip spans 9 days
Lufthansa
Lufthansa
OPO
EWR
13h 35m
1 stop
EWR
OPO
12h 05m
1 stop
Depart: Wed Dec 13 2017 Return: Tue Dec 19 2017 Trip spans 7 days
Delta
Delta
LIS
LGA
17h 48m
2 stops
LGA
LIS
16h 55m
2 stops
Depart: Mon Oct 16 2017 Return: Fri Oct 20 2017 Trip spans 5 days
American Airlines
American Airlines
LIS
LGA
16h 27m
2 stops
LGA
LIS
12h 46m
1 stop
Depart: Sun Sep 17 2017 Return: Fri Sep 22 2017 Trip spans 6 days
SWISS
SWISS
OPO
JFK
29h 05m
1 stop
JFK
OPO
13h 20m
1 stop
Depart: Tue Dec 19 2017 Return: Wed Dec 27 2017 Trip spans 9 days
United
United
LIS
LGA
23h 17m
2 stops
LGA
LIS
29h 15m
2 stops
Depart: Thu Nov 30 2017 Return: Sun Dec 3 2017 Trip spans 4 days
Turkish Airlines
Turkish Airlines
LIS
IAD
31h 55m
1 stop
IAD
LIS
35h 25m
1 stop
Depart: Tue Aug 22 2017 Return: Sun Aug 27 2017 Trip spans 6 days
Air Europa
Air Europa
LIS
JFK
11h 15m
1 stop
JFK
LIS
12h 00m
1 stop
Depart: Sun Jan 21 2018 Return: Sun Jan 28 2018 Trip spans 8 days
TAP Portugal
TAP Portugal
LIS
MIA
9h 25m
nonstop
MIA
LIS
8h 00m
nonstop
Depart: Wed Sep 20 2017 Return: Thu Sep 28 2017 Trip spans 9 days
Finnair
Finnair
LIS
EWR
13h 35m
1 stop
EWR
LIS
20h 30m
1 stop
Depart: Mon Dec 4 2017 Return: Tue Dec 12 2017 Trip spans 9 days
British Airways
British Airways
LIS
EWR
16h 20m
1 stop
EWR
LIS
15h 20m
1 stop
Depart: Sun Jul 23 2017 Return: Tue Aug 1 2017 Trip spans 10 days
TACV
TACV
LIS
BOS
7h 30m
nonstop
BOS
LIS
6h 15m
nonstop
Depart: Tue Oct 3 2017 Return: Thu Oct 12 2017 Trip spans 10 days
KLM
KLM
OPO
LGA
16h 59m
2 stops
LGA
OPO
12h 30m
2 stops
Depart: Tue Nov 14 2017 Return: Thu Nov 23 2017 Trip spans 10 days
Air France
Air France
OPO
MIA
13h 15m
1 stop
MIA
OPO
31h 15m
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.

Airports
Origin

Porto
$431
Lisbon
$380
Destination

New York
only $439
only $397
Newark
$406
Washington
$619
Miami
$380
Boston
$868