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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(Round-trip)
Depart: Mon Aug 21 2017 Return: Mon Aug 28 2017 Trip spans 8 days
British Airways
British Airways
DCA
LIS
21h 45m
1 stop
LIS
DCA
15h 02m
1 stop
Depart: Mon Sep 25 2017 Return: Mon Oct 2 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
DCA
LIS
16h 40m
2 stops
LIS
DCA
15h 02m
1 stop
Depart: Wed Sep 6 2017 Return: Wed Sep 13 2017 Trip spans 8 days
Iberia
Iberia
DCA
LIS
13h 33m
2 stops
LIS
DCA
17h 50m
2 stops
Depart: Wed Sep 20 2017 Return: Thu Sep 21 2017 Trip spans 2 days
Azores Airlines
Azores Airlines
BOS
TER
4h 30m
nonstop
TER
BOS
5h 40m
nonstop
Depart: Mon Aug 21 2017 Return: Thu Aug 31 2017 Trip spans 11 days
American Airlines
American Airlines
BWI
LIS
20h 45m
1 stop
LIS
BWI
32h 44m
1 stop
Depart: Wed Sep 20 2017 Return: Sun Sep 24 2017 Trip spans 5 days
TAP Portugal
TAP Portugal
BOS
LIS
6h 30m
nonstop
LIS
BOS
7h 35m
nonstop
Depart: Mon Dec 25 2017 Return: Fri Dec 29 2017 Trip spans 5 days
Air Canada
Air Canada
BOS
LIS
15h 10m
2 stops
LIS
BOS
23h 58m
2 stops
Depart: Mon Jan 8 2018 Return: Fri Feb 9 2018 Trip spans 33 days
United
United
BOS
LIS
16h 41m
1 stop
LIS
BOS
15h 45m
2 stops
Depart: Tue Dec 26 2017 Return: Mon Jan 1 2018 Trip spans 7 days
Lufthansa
Lufthansa
BOS
LIS
12h 00m
1 stop
LIS
BOS
29h 55m
1 stop
Depart: Tue Sep 12 2017 Return: Tue Sep 19 2017 Trip spans 8 days
Turkish Airlines
Turkish Airlines
ATL
LIS
35h 25m
1 stop
LIS
ATL
32h 55m
1 stop
Depart: Tue Sep 5 2017 Return: Mon Sep 18 2017 Trip spans 14 days
Multiple Airlines
Multiple Airlines
BWI
LIS
20h 30m
1 stop
LIS
BWI
25h 17m
2 stops
Depart: Tue Nov 21 2017 Return: Mon Nov 27 2017 Trip spans 7 days
Aer Lingus
Aer Lingus
CLT
LIS
26h 00m
2 stops
LIS
CLT
34h 23m
2 stops
Depart: Mon Aug 21 2017 Return: Mon Aug 28 2017 Trip spans 8 days
British Airways
British Airways
DCA
LIS
21h 45m
1 stop
LIS
DCA
15h 02m
1 stop
Depart: Sat Nov 4 2017 Return: Sat Nov 11 2017 Trip spans 8 days
Azores Airlines
Azores Airlines
BOS
PDL
4h 55m
nonstop
PDL
BOS
5h 50m
nonstop
Depart: Mon Oct 9 2017 Return: Mon Oct 16 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
BWI
LIS
14h 04m
1 stop
LIS
BWI
25h 17m
2 stops
Depart: Mon Nov 6 2017 Return: Tue Dec 5 2017 Trip spans 30 days
British Airways
British Airways
BOS
LIS
10h 55m
1 stop
LIS
BOS
13h 00m
1 stop
Depart: Fri Nov 24 2017 Return: Fri Dec 1 2017 Trip spans 8 days
Azores Airlines
Azores Airlines
BOS
PDL
4h 55m
nonstop
PDL
BOS
5h 50m
nonstop
Depart: Wed Oct 18 2017 Return: Wed Oct 25 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
BWI
LIS
14h 04m
1 stop
LIS
BWI
29h 45m
2 stops
Depart: Wed Sep 6 2017 Return: Wed Sep 20 2017 Trip spans 15 days
British Airways
British Airways
BOS
LIS
17h 45m
1 stop
LIS
BOS
12h 15m
1 stop
Depart: Fri Dec 1 2017 Return: Sun Jan 7 2018 Trip spans 38 days
Azores Airlines
Azores Airlines
BOS
PDL
4h 55m
nonstop
PDL
BOS
5h 50m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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,
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Airports
Origin

Charlotte
$881
Baltimore
$438
Atlanta
$672
Washington
$421
Boston
$447
Destination

Terceira Island
$455
Lisbon
$421
Ponta Delgada (Açores)
$467