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Cheap Flights from Seattle to Porto - SEA to OPO

Did You Know?

US Airways has 490 connecting flights between Seattle, WA and Porto.
457,731 seats are available per week to fly from Seattle, WA to Porto.
You must make at least one connection to fly from Seattle, WA to Porto.
There are 8350 flights from Seattle, WA to Porto per week.

Cheap International Flights from Seattle - SEA

Flights
Airline
Lowest Price
Air Europa, Korean, British Airways, Finnair, Brussels, Tap Portugal, SAS, KLM, US Airways, Icelandair, Turkish, Swiss, Delta, LOT, Alitalia, Air Canada, Austrian, Lufthansa, Air France, Air Berlin, American, Iberia, United
$899
Swiss, Turkish, KLM, US Airways, Delta, LOT, Austrian, American, Icelandair, Korean, Air Europa, Iberia, Lufthansa, Air France, Air Canada, British Airways, Finnair, Brussels, Alitalia, United
$1030
Finnair, Brussels, Alitalia, Austrian, Swiss, KLM, Turkish, British Airways, Tap Portugal, Air Canada, United, Delta, American, Air France, Lufthansa, Air Europa, US Airways, Iberia
$999
Air Europa, Iberia, Air France, American, Delta, British Airways, Finnair, KLM, Alitalia
$1113
LOT, Air Berlin, Swiss, KLM, Turkish, US Airways, Austrian, Alitalia, Air France, Lufthansa, Iberia, Air Europa, Icelandair, American, Delta, United, British Airways, Finnair, Brussels, Air Canada
$1025
Icelandair, Austrian, SAS, Alitalia, Brussels, Finnair, British Airways, Singapore, Air Canada, American, Lufthansa, Air France, United, LOT, Korean, Condor, Iberia, US Airways, Delta, Tap Portugal, New Zealand, Turkish, KLM, Swiss, Air Berlin
$853
Air France, Alitalia, SAS, Austrian, KLM, US Airways, Icelandair, Korean, Air Europa, Iberia, Tap Portugal, Turkish, Swiss, Brussels, LOT, Finnair, British Airways, Air Canada, United, American, Lufthansa, Delta
$894
Aer Lingus, US Airways, New Zealand, Turkish, Iberia, Swiss, Alitalia, Lufthansa, Air France, American, United, Finnair, Air Canada, British Airways, Delta, KLM
$776
LOT, KLM, Delta, US Airways, Icelandair, Korean, Iberia, Air Europa, SAS, Austrian, Brussels, Lufthansa, Air France, Air Berlin, American, Air Canada, British Airways, Finnair, Alitalia, Swiss, Turkish, United
$1023
Turkish, American, British Airways, Iberia
$1016
Finnair, British Airways, Delta, American, Air France, Iberia, Alitalia, Air Europa, KLM
$1289
Swiss, KLM, Iberia, Lufthansa, Condor, British Airways, Turkish, Air Canada, Austrian, Alitalia, Brussels, Finnair, Air France, Air Berlin, American, Delta, US Airways, Air Europa
$1013

Cheap International Flights to Porto - OPO

Flights
Airline
Lowest Price
Iberia, Lufthansa, American, United, British Airways, Swiss, KLM, Air Canada, Brussels, US Airways
CAD769
Alitalia, Lufthansa, American, United, Air Canada, British Airways, Brussels, KLM, Swiss, Iberia, US Airways
$1094
Finnair, British Airways, Delta, Air Canada, Air Transat, KLM, Brussels, Austrian, LOT, Swiss, US Airways, Jet Airways, Turkish, United, Icelandair, American, Air France, Lufthansa, Iberia, Korean
CAD675
Finnair, United, Air France, American, Delta, Turkish, US Airways, KLM, Lufthansa, Swiss, Iberia, Air Canada, Austrian, British Airways, Brussels
CAD743
Delta, American, Air France, Lufthansa, Iberia, Air Canada, United, US Airways, Brussels, Alitalia, Swiss, LOT, KLM, Turkish, British Airways
$1030
Turkish, Austrian, LOT, Iberia, Lufthansa, Air France, American, Delta, US Airways, Air Canada, British Airways, Finnair, Brussels, KLM, Swiss, Korean, United
CAD875
United, Lufthansa, Air France, Swiss, SAS, Turkish, Delta, Iberia, US Airways, American, Brussels, Alitalia, LOT, British Airways, Air Canada, KLM
$1062
Iberia, Air France, American, Finnair, KLM, British Airways, Delta
CAD876
Alitalia, US Airways, Turkish, Swiss, Brussels, British Airways, Air Canada, United, Delta, American, Air France, Lufthansa, Iberia, KLM
$1104
Swiss, US Airways, Turkish, KLM, Icelandair, LOT, Delta, American, United, Korean, Lufthansa, Iberia, Air Canada, Air Transat, British Airways, Finnair, Brussels, Austrian, Air France
CAD833
British Airways, Air Transat, United, Air Canada, Delta, American, Air France, Condor, Iberia, Korean, Icelandair, Finnair, Brussels, US Airways, Turkish, Lufthansa, KLM, Swiss, LOT, Austrian
CAD512
Iberia, Turkish, British Airways, American
CAD1076
US Airways, Turkish, KLM, LOT, Brussels, Austrian, Finnair, American, Delta, Iberia, Icelandair, Lufthansa, Air France, United, Air Canada, British Airways, Swiss
CAD873
Turkish, KLM, US Airways, Air France, Lufthansa, Iberia, Swiss, LOT, SAS, Brussels, American, Delta, United, Alitalia, Air Canada, British Airways
$935
American, Air France, Swiss, Lufthansa, Air Canada, Brussels, United, US Airways, Delta, Turkish, British Airways, KLM, LOT, Alitalia, Iberia
$1025
KLM, British Airways, Air Canada, Delta, United, American, Air France, Lufthansa
CAD837
Alitalia, SAS, KLM, US Airways, Iberia, Delta, LOT, Swiss, Turkish, Lufthansa, Air France, Brussels, American, United, Air Canada, British Airways, Singapore, New Zealand
$818
Air Canada, WestJet, Alaska, United, Delta, American, US Airways, Cathay
CAD554
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Cheap Flights from Seattle to Porto, from $1143 Round trip from SEA to OPO