Airlines that fly from Portland to Tri-Cities
Air Canada
WestJet
Flair Airlines
American Airlines
United
Delta
Porter Airlines
Air Transat
Lufthansa
British Airways
Alaska Airlines
Swiss International Air Lines
Aeromexico
TAP Portugal
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Cheap flights from Portland (PDX) to Tri-Cities (PSC)
Prices were available within the past 7 days and start at CA $357 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
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