Find Cheap Flights to Portugal

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...

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(Round-trip)
Depart: Thu Feb 22 2018 Return: Thu Mar 1 2018 Trip spans 8 days
British Airways
British Airways
BOS
LIS
16h 50m
1 stop
LIS
BOS
13h 00m
1 stop
Depart: Thu Mar 1 2018 Return: Thu Mar 8 2018 Trip spans 8 days
Multiple Airlines
Multiple Airlines
BOS
LIS
31h 25m
1 stop
LIS
BOS
13h 40m
1 stop
Depart: Fri Feb 2 2018 Return: Fri Feb 16 2018 Trip spans 15 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
JFK
LIS
6h 40m
nonstop
LIS
JFK
8h 00m
nonstop
Depart: Wed Nov 15 2017 Return: Wed Nov 22 2017 Trip spans 8 days
Iberia
Iberia
EWR
OPO
11h 55m
1 stop
OPO
EWR
31h 20m
1 stop
Depart: Mon Oct 16 2017 Return: Wed Nov 15 2017 Trip spans 31 days
American Airlines
American Airlines
EWR
OPO
16h 20m
2 stops
OPO
EWR
21h 44m
2 stops
Depart: Wed Oct 25 2017 Return: Wed Nov 15 2017 Trip spans 22 days
Air Europa
Air Europa
JFK
LIS
15h 50m
1 stop
LIS
JFK
15h 20m
1 stop
Depart: Wed Feb 21 2018 Return: Wed Apr 4 2018 Trip spans 42 days
British Airways
British Airways
BOS
LIS
10h 30m
1 stop
LIS
BOS
28h 35m
2 stops
Depart: Sun Nov 12 2017 Return: Thu Nov 23 2017 Trip spans 12 days
Multiple Airlines
Multiple Airlines
BOS
LIS
15h 15m
1 stop
LIS
BOS
15h 45m
1 stop
Depart: Fri Feb 23 2018 Return: Fri Mar 2 2018 Trip spans 8 days
British Airways
British Airways
BOS
LIS
10h 30m
1 stop
LIS
BOS
16h 20m
2 stops
Depart: Sun Oct 1 2017 Return: Thu Oct 12 2017 Trip spans 12 days
Iberia
Iberia
EWR
OPO
12h 05m
1 stop
OPO
EWR
24h 50m
2 stops
Depart: Tue Mar 27 2018 Return: Wed Apr 4 2018 Trip spans 9 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
EWR
LIS
6h 50m
nonstop
LIS
EWR
8h 05m
nonstop
Depart: Fri Jan 12 2018 Return: Sat Jan 27 2018 Trip spans 16 days
American Airlines
American Airlines
EWR
OPO
21h 00m
2 stops
OPO
EWR
18h 52m
2 stops
Depart: Wed Nov 15 2017 Return: Thu Nov 23 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
EWR
OPO
11h 55m
1 stop
OPO
EWR
20h 13m
2 stops
Depart: Wed Nov 29 2017 Return: Wed Dec 13 2017 Trip spans 15 days
British Airways
British Airways
BOS
LIS
10h 30m
1 stop
LIS
BOS
16h 25m
2 stops
Depart: Sat Jan 13 2018 Return: Sat Jan 27 2018 Trip spans 15 days
American Airlines
American Airlines
EWR
OPO
18h 00m
2 stops
OPO
EWR
17h 19m
2 stops
Depart: Thu Oct 26 2017 Return: Fri Dec 8 2017 Trip spans 44 days
Iberia
Iberia
JFK
LIS
15h 50m
1 stop
LIS
JFK
11h 10m
1 stop
Depart: Tue Mar 6 2018 Return: Thu Mar 15 2018 Trip spans 9 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
EWR
OPO
8h 45m
1 stop
OPO
EWR
8h 00m
nonstop
Depart: Sun Feb 11 2018 Return: Wed Feb 14 2018 Trip spans 4 days
Multiple Airlines
Multiple Airlines
BOS
LIS
17h 30m
1 stop
LIS
BOS
17h 20m
1 stop
Depart: Mon Dec 4 2017 Return: Sun Dec 10 2017 Trip spans 7 days
British Airways
British Airways
BOS
LIS
10h 30m
1 stop
LIS
BOS
24h 15m
2 stops
Depart: Tue Mar 13 2018 Return: Thu Mar 15 2018 Trip spans 3 days
TAP AIR PORTUGAL
TAP AIR PORTUGAL
EWR
OPO
11h 45m
1 stop
OPO
EWR
8h 00m
nonstop
* 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

New York
$482
Newark
$472
Boston
$430
Destination

Porto
$472
Lisbon
$430