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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
$960
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
$995
Finnair, Brussels, Alitalia, Austrian, Swiss, KLM, Turkish, British Airways, Tap Portugal, Air Canada, United, Delta, American, Air France, Lufthansa, Air Europa, US Airways, Iberia
$963
Air Europa, Iberia, Air France, American, Delta, British Airways, Finnair, KLM, Alitalia
$1194
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
$804
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
$954
Aer Lingus, US Airways, Air New Zealand, Turkish, Iberia, Swiss, Alitalia, Lufthansa, Air France, American, United, Finnair, Air Canada, British Airways, Delta, KLM
$770
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
$992
Turkish, American, British Airways, Iberia
$982
Finnair, British Airways, Delta, American, Air France, Iberia, Alitalia, Air Europa, KLM
$1270
Swiss, KLM, Iberia, Lufthansa, Condor, British Airways, Turkish, Air Canada, Austrian, Alitalia, Brussels, Finnair, Air France, Air Berlin, American, Delta, US Airways, Air Europa
$981

Cheap International Flights to Porto - OPO

Flights
Airline
Lowest Price
Iberia, Lufthansa, American, United, British Airways, Swiss, KLM, Air Canada, Brussels, US Airways
$932
Alitalia, Lufthansa, American, United, Air Canada, British Airways, Brussels, KLM, Swiss, Iberia, US Airways
$1205
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
$696
Finnair, United, Air France, American, Delta, Turkish, US Airways, KLM, Lufthansa, Swiss, Iberia, Air Canada, Austrian, British Airways, Brussels
$912
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
$985
United, Lufthansa, Air France, Swiss, SAS, Turkish, Delta, Iberia, US Airways, American, Brussels, Alitalia, LOT, British Airways, Air Canada, KLM
$1070
Iberia, Air France, American, Finnair, KLM, British Airways, Delta
$987
Alitalia, US Airways, Turkish, Swiss, Brussels, British Airways, Air Canada, United, Delta, American, Air France, Lufthansa, Iberia, KLM
$1185
Swiss, US Airways, Turkish, KLM, Icelandair, LOT, Delta, American, United, Korean, Lufthansa, Iberia, Air Canada, Air Transat, British Airways, Finnair, Brussels, Austrian, Air France
$668
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
$576
Iberia, Turkish, British Airways, American
$1178
US Airways, Turkish, KLM, LOT, Brussels, Austrian, Finnair, American, Delta, Iberia, Icelandair, Lufthansa, Air France, United, Air Canada, British Airways, Swiss
$983
Turkish, KLM, US Airways, Air France, Lufthansa, Iberia, Swiss, LOT, SAS, Brussels, American, Delta, United, Alitalia, Air Canada, British Airways
$960
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
$970
Alitalia, SAS, KLM, US Airways, Iberia, Delta, LOT, Swiss, Turkish, Lufthansa, Air France, Brussels, American, United, Air Canada, British Airways, Singapore, Air New Zealand
$804
Air Canada, WestJet, Alaska, United, Delta, American, US Airways, Cathay
$534
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Cheap Flights from Seattle to Porto, from $1249 Round trip from SEA to OPO