MONTHS Washington DC to Porto, Portugal for only $399 roundtrip (Oct-Dec dates) Jul 19, 2023 FLIGHT DETAILS & AIRLINE
MONTHS Eastern USA to Porto, Portugal from only $356 roundtrip (Oct-Jun dates) Aug 29, 2022 FLIGHT DETAILS & AIRLINE
MONTHS 🔥 Washington DC to Porto, Portugal for only $292 roundtrip (Jun-Mar dates) May 13, 2022 FLIGHT DETAILS & AIRLINE
MONTHS US cities to Porto, Portugal from only $315 roundtrip (Feb-Sep dates) Feb 12, 2022 FLIGHT DETAILS & AIRLINE
MONTHS Boston or Washington DC to Porto, Portugal from only $333 roundtrip (Nov-Jun dates) Jul 31, 2021 FLIGHT DETAILS & AIRLINE
MONTHS SUMMER: New York or Washington DC to Porto, Portugal from only $329 roundtrip (May-Feb dates) Mar 6, 2021 FLIGHT DETAILS & AIRLINE
MONTHS HOT!! Baltimore/Washington DC to Lisbon, Portugal for only $292 roundtrip Jun 6, 2019 FLIGHT DETAILS & AIRLINE
MONTHS Baltimore/Washington DC to Lisbon or Porto, Portugal for only $438 roundtrip Mar 9, 2017 FLIGHT DETAILS & AIRLINE
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