This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $518 fare is the cheapest current round-trip from Portland (PDX) to CLT on Southwest flight WN3709, departing 2026-05-06 at 06:30 with return on 2026-05-07.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.