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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.
You must make at least one connection to fly from Seattle, WA to Porto.

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
$961
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
$1003
Finnair, Brussels, Alitalia, Austrian, Swiss, KLM, Turkish, British Airways, Tap Portugal, Air Canada, United, Delta, American, Air France, Lufthansa, Air Europa, US Airways, Iberia
$975
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
$998
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, Air New Zealand, Turkish, KLM, Swiss, Air Berlin
$809
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
$955
Aer Lingus, US Airways, Air New Zealand, Turkish, Iberia, Swiss, Alitalia, Lufthansa, Air France, American, United, Finnair, Air Canada, British Airways, Delta, KLM
$772
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
$1002
Turkish, American, British Airways, Iberia
$992
Finnair, British Airways, Delta, American, Air France, Iberia, Alitalia, Air Europa, KLM
$1277
Swiss, KLM, Iberia, Lufthansa, Condor, British Airways, Turkish, Air Canada, Austrian, Alitalia, Brussels, Finnair, Air France, Air Berlin, American, Delta, US Airways, Air Europa
$989

Cheap International Flights to Porto - OPO

Flights
Airline
Lowest Price
Iberia, Lufthansa, American, United, British Airways, Swiss, KLM, Air Canada, Brussels, US Airways
$908
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
$701
Finnair, United, Air France, American, Delta, Turkish, US Airways, KLM, Lufthansa, Swiss, Iberia, Air Canada, Austrian, British Airways, Brussels
$854
Delta, American, Air France, Lufthansa, Iberia, Air Canada, United, US Airways, Brussels, Alitalia, Swiss, LOT, KLM, Turkish, British Airways
$1039
Turkish, Austrian, LOT, Iberia, Lufthansa, Air France, American, Delta, US Airways, Air Canada, British Airways, Finnair, Brussels, KLM, Swiss, Korean, United
$844
United, Lufthansa, Air France, Swiss, SAS, Turkish, Delta, Iberia, US Airways, American, Brussels, Alitalia, LOT, British Airways, Air Canada, KLM
$1069
Iberia, Air France, American, Finnair, KLM, British Airways, Delta
$982
Alitalia, US Airways, Turkish, Swiss, Brussels, British Airways, Air Canada, United, Delta, American, Air France, Lufthansa, Iberia, KLM
$1187
Swiss, US Airways, Turkish, KLM, Icelandair, LOT, Delta, American, United, Korean, Lufthansa, Iberia, Air Canada, Air Transat, British Airways, Finnair, Brussels, Austrian, Air France
$665
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
$574
Iberia, Turkish, British Airways, American
$923
US Airways, Turkish, KLM, LOT, Brussels, Austrian, Finnair, American, Delta, Iberia, Icelandair, Lufthansa, Air France, United, Air Canada, British Airways, Swiss
$865
Turkish, KLM, US Airways, Air France, Lufthansa, Iberia, Swiss, LOT, SAS, Brussels, American, Delta, United, Alitalia, Air Canada, British Airways
$962
American, Air France, Swiss, Lufthansa, Air Canada, Brussels, United, US Airways, Delta, Turkish, British Airways, KLM, LOT, Alitalia, Iberia
$1034
KLM, British Airways, Air Canada, Delta, United, American, Air France, Lufthansa
$947
Alitalia, SAS, KLM, US Airways, Iberia, Delta, LOT, Swiss, Turkish, Lufthansa, Air France, Brussels, American, United, Air Canada, British Airways, Singapore, Air New Zealand
$809
Air Canada, WestJet, Alaska, United, Delta, American, US Airways, Cathay
$456
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Cheap Flights from Seattle to Porto, from $1101 Round trip from SEA to OPO