This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $229 fare is the cheapest current round-trip from San Francisco (SFO) to NYC on Southwest flight WN3556, departing 2026-09-28 at 23:40 with return on 2026-10-29.

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