Error Fares Explained — How Airlines Accidentally Sell €50 Tickets to Asia
· By FairFares Team3 min readdealstipserror-fares

Error Fares Explained — How Airlines Accidentally Sell €50 Tickets to Asia

TL;DR

Error fares — also called mistake fares or cheap flight glitches — are real airline tickets sold at a fraction of their intended price due to a system error. Here is how they happen, how to spot them, and what to do when you find one.

Table of Contents

🎯 Key Takeaways

ℹ️
✅ What you need to know
Error fares are priced 50–80% below every competing option on the same route
• They disappear within 2–6 hours — real-time alerts are the only reliable way to catch them
• In the EU, a confirmed booking is a legally binding contract — most European airlines honour it
• Book immediately; do not call the airline; wait 72 hours before committing to hotels or connections
• Outside the EU and US, airlines can and sometimes do cancel with a full refund only

Error fares — mistake fares or glitch fares — are airline tickets sold at a fraction of their intended price because of a technical error: a dropped digit, currency conversion mistake, fare class misassignment, or a system migration glitch. They are real, legal in most countries, and have handed travellers business class tickets to Tokyo for €300 and economy seats to New York for £50.

What is an error fare?

An error fare occurs when a mistake in the pricing chain produces a ticket price dramatically below the airline's intent. The resulting booking is a valid contract for carriage — even though the airline would prefer you had not purchased it.

The distinction from a genuine sale matters: flash sales are intentional. Error fares are unintentional — which is why they are 50–80% below every competing option on the same route, and why they disappear within two to six hours.

Common causes: currency conversion errors (a rate miscalculated when publishing fares in multiple markets), dropped digits in data entry, fare class misassignment (a business class seat accidentally coded to an economy fare bucket), and IT system migrations that corrupt pricing data.

How to spot one

You will not find error fares through casual browsing. By the time you notice one, it is usually gone. Dedicated monitoring — subscribing to real-time alert services and Telegram deal channels — is the only reliable method.

Recognisable characteristics when one appears:

  • The price is 50–80% below every competing option on the same route
  • The error appears on only one booking channel while others show normal pricing
  • A premium cabin is available at economy-level prices
  • The low price exists only across a very narrow window of departure dates
  • The route has no obvious commercial reason for a deep sale

What to do when you find one

Speed is everything. Book immediately using a card with travel insurance. Do not yet book hotels or connecting flights.

Do not call the airline — calling draws attention and can trigger a manual review. Leave the confirmation in your inbox.

Wait 72 hours before committing to non-refundable ancillaries. Airlines typically discover and correct error fares within 24 hours. If the booking survives 72 hours, cancellation risk has dropped substantially.

💡
In the EU, a confirmed booking is a legally binding contract under general consumer law. Airlines that cancel valid confirmed tickets face significant legal exposure — not just a refund obligation — which is why most EU-based airlines choose to honour them rather than fight.

Will airlines honour error fares?

In the EU and US, confirmed bookings are generally honoured — airlines face reputational and legal consequences if they cancel en masse. In practice, most EU-based carriers honour error fares.

Outside the EU and US, airlines have cancelled error fare bookings with nothing beyond a full refund. The ANA 2016 case — business class from Europe to Japan at ~€400, cancelled en masse — remains the most prominent example. Treat non-EU bookings as speculative until departure.

Bottom line

Error fares are real and legally protected within the EU. They consistently reward travellers who have alerts configured, can act immediately, and are comfortable with a degree of uncertainty.

If that describes you, error fares are worth watching for. If you prefer to plan and book with confidence, genuine deep-discount sales — where the booking is solid and the airline intended the price — are the more reliable strategy. Both approaches have their place.

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