This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $837 fare is the cheapest current round-trip from Boston (BOS) to RAI on S4 flight S4280, departing 2026-10-01 at 21:15 with return on 2026-10-31.

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