What is a mistake fare (error fare) — a glitch-priced ticket far below intent, how it differs from a sale, and the book-fast then wait-for-ticketing playbook in brief.
What is a mistake fare?
A mistake fare (error fare) is a published ticket price that is far below what the airline intended — usually from a system glitch such as a dropped zero, mapping error or missing surcharge — and may last only minutes.
Mistake fares are not ordinary sales, Black Friday-style promos, or predictable midweek dips. They look absurd next to neighbouring dates. Honour after ticketing is common but not guaranteed; airlines may void some tickets. The practical playbook is book on a real checkout, do not phone the airline to “ask if it is allowed”, wait for e-ticket numbers, and delay non-refundable hotels. Full guide: mistake fares complete guide.
Error fares differ from hidden-city ticketing: you intend to fly the whole ticketed journey. They sometimes involve a dropped fuel surcharge. Everyday cheap-flight skill still matters more year-round — 21 ways to fly cheaper.
Verify outliers with Google Flights calendars and live flight deals checkouts. totals at payment; caches lie.
What should you do if you spot a mistake fare?
Screenshot the total, book passport-accurate names immediately, avoid calling the airline to confirm the glitch, wait for ticket numbers, then keep hotels cancellable for a few days.
Example: a long-haul economy checkout shows £180 while adjacent dates are £700 with the same stops. You complete payment, save the confirmation, and do not announce the PNR publicly before ticketing. If voided, stop non-refundable spend and read the OTA/airline refund path. Timing habits for normal fares: best time to book flights.
Award glitches exist too — same speed rules, plus transfer partner irreversibility if you already moved points.