This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $261 fare is the cheapest current round-trip from Minneapolis (MSP) to SFO on Frontier flight F91291, departing 2026-06-02 at 21:39 with return on 2026-06-05.

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