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Cheap flights from Seattle to Porto, Portugal for only $487 roundtrip with United Airlines and Lufthansa.
The example dates listed below range between $487 and $496 roundtrip.
DEPART:
Seattle, USA
ARRIVE:
Porto, Portugal
RETURN:
Seattle, USA
DATES:
Availability from February to March 2026
Example dates:
23rd Feb – 2nd Mar
25th Feb – 6th Mar
2nd-9th Mar
2nd-10th Mar
2nd-11th Mar
3rd-10th Mar
3rd-11th Mar
3rd-12th Mar
4th-12th Mar
5th-14th Mar
6th-13th Mar
6th-15th Mar
7th-15th Mar
9th-17th Mar
10th-17th Mar
10th-18th Mar
11th-18th Mar
13th-21st Mar
14th-22nd Mar
18th-27th Mar
19th-28th Mar
20th-29th Mar
21st-29th Mar
21st-30th Mar
22nd-29th Mar
22nd-30th Mar
and more…
STOPS:
Various Cities
AIRLINES:
United Airlines
Lufthansa
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