An error fare, or mistake fare, is a glitch in an airline's pricing system resulting in a ticket being sold for significantly less than its intended value, often due to human error or currency conversion bugs.
What Is an Error Fare?
An error fare, also called a mistake fare, is an airline ticket priced far below its intended value due to a technical or human error in the pricing or distribution system. Causes include currency conversion mistakes, fuel surcharge omissions, decimal point errors, or incorrect data entry by airline staff or third-party fare distributors.
Error fares can drop international business or first class tickets to a fraction of standard cost — sometimes under $500 for premium cabin seats normally priced at $5,000 or more. Airlines discovered these glitches long before online booking, but the speed of internet distribution and flight-deal forums has made error fares spread and sell out within hours or minutes once posted.
How Error Fares Happen
Most error fares originate from one of three sources: a manual fare-load mistake by airline revenue management staff, a software bug in a Global Distribution System (GDS) like Amadeus or Sabre, or a currency exchange miscalculation when converting a fare from one country's pricing to another. A common example involves a fare meant to be priced in one currency (e.g., Japanese yen) mistakenly loaded using a different currency's exchange rate, cutting the ticket price by 50% to 90%.
Airlines & Booking Risk
Error fares can appear on any airline's website, a third-party online travel agency, or through a GDS feed used by multiple booking platforms. They are not tied to any specific carrier and occur unpredictably across full-service and low-cost airlines alike. Under U.S. Department of Transportation guidance issued in 2015, airlines are not legally required to honor error fares if they can demonstrate the price was a clear mistake, though many airlines have historically chosen to honor them for goodwill.
Traveler Tip
Book an error fare quickly but avoid making non-refundable travel plans (hotels, other flights) until the airline formally confirms the ticket, since cancellations can happen days later. CEOFLIGHTS specialists can help find discounted fares — call (888) 851-6897.