Cheap flights from United States to Portugal from £305
One search, all the flights
We find you the best flight deals and travel hacks so that you can choose how to book.
Rise above all travel anxieties
With the Kiwi.com Guarantee we have your back with whatever happens.
Trusted by millions
Join over 10 million yearly travellers booking with ease.
Book flights from United States to Portugal
Tickets from £166
Tickets from £166
Tickets from £211
Tickets from £200
Tickets from £188
Tickets from £242
Tickets from £205
Tickets from £197
Tickets from £226
Tickets from £204
Tickets from £193
Tickets from £252
Tickets from £278
Tickets from £289
Tickets from £247
Tickets from £264
Tickets from £167
Tickets from £279
Tickets from £187
Tickets from £191
Tickets from £234
Tickets from £250
Tickets from £234
Tickets from £243
Tickets from £203
Tickets from £272
Tickets from £232
Tickets from £338
Tickets from £210
Tickets from £468
Tickets from £218
Tickets from £181
Tickets from £255
Tickets from £324
Tickets from £232
Tickets from £202
Tickets from £194
Tickets from £311
Tickets from £196
Tickets from £292
Fly to top destinations in Portugal
from £191
from £191
from £203
from £203
from £218
from £212
from £216
from £274
from £218
from £222
from £223
from £220
from £221
from £220
Most popular departure cities in United States
Get more out of Kiwi.com with our mobile application
Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.
Download boarding passes
One-click booking
Get exclusive offers and prices
Mobile trip notifications