The best error fare I've ever caught was a business class ticket to Singapore for $340 — about 8% of the normal price. I booked it at 11pm on a Tuesday, received a confirmation email, held my breath for 48 hours waiting for it to be cancelled, and then received a check-in reminder two months later. It held. That flight remains the best value thing I've ever purchased.
What Is an Error Fare?
An error fare (also called a mistake fare) is a flight priced dramatically below its intended price due to an airline or booking system error. Common causes include: currency conversion glitches, fuel surcharge errors, routing mistakes (pricing a multi-leg journey as a direct route), and human data entry errors.
Error fares can be 50–95% cheaper than normal pricing. A business class transatlantic ticket that normally costs $5,000 might appear as $400 for a few hours before the error is corrected.
Are Airlines Required to Honor Error Fares?
Error fares are increasingly rare as airlines automate price-checking, but they still appear regularly enough that having a system to catch them is absolutely worth the minimal effort required.
This varies by country. In the US, the DOT historically required airlines to honor issued tickets for pricing errors, though regulations have evolved. In the EU, consumer protections are generally stronger. In practice, major airlines usually honor error fares that result in issued booking confirmations — cancelling them generates enormous bad publicity. Lesser-known carriers may cancel bookings.
The general rule: if you receive a booking confirmation email, your chances of being honored are high. If you only receive a "pending" status, the airline may still cancel.
Best Services for Error Fare Alerts
Scott's Cheap Flights (Going) — Premium
The gold standard. Their team of dedicated analysts scour global fares around the clock and send curated alerts — including error fares — to subscribers. The premium tier receives error fare alerts before free tier members, which is critical given how quickly these disappear.
Secret Flying
Free aggregator that publishes error fares as they're discovered by their community. Less curated than Scott's but free and often very fast in surfacing new errors.
Airfarewatchdog
Particularly strong for US-originating error fares. Their email alerts are less frequent but consistently high quality.
Jack's Flight Club (Europe-focused)
The UK and European equivalent of Scott's Cheap Flights. Premium subscribers receive error fare alerts for European-origin routes with strong track records of accuracy.
How to Position Yourself to Catch Error Fares
- Have your payment details saved on Google Pay, Apple Pay, or directly with booking sites. Error fares disappear in minutes — every second of payment friction reduces your chances.
- Enable push notifications for deal alert apps. Email alerts are too slow for the fastest-disappearing errors.
- Maintain a flexible "bucket list" destination mindset. Error fare alerts rarely match a specific planned itinerary — they reward travelers who can reorganize plans around an exceptional deal.
- Have a valid passport and flexible work leave. An error fare to Tokyo is worthless if you can't actually go to Tokyo when the dates arise.
How to Book an Error Fare Fast
- Receive the alert.
- Immediately go to the airline's own website (not an OTA) — airlines are more likely to honor direct bookings.
- Complete the booking in the same browser session without navigating away.
- Screenshot your confirmation page and save your booking reference.
- Wait 24–48 hours before booking non-refundable connecting accommodation (in case the airline cancels).
Once confirmed, head to our hotel deals page to sort accommodation, and book tours at your destination while anticipation is high.
Conclusion
Error fares are the holy grail of travel savings — but they demand preparation, speed, and flexibility. Set up your alerts, have your payment details ready, keep your passport valid, and the next extraordinary mistake fare could be yours.
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✈ Search Flights 🏨 Book Hotels 🚗 Rent a CarFrequently Asked Questions
How often do error fares occur?
True significant error fares occur a few times per week globally — but most are route-specific. A subscriber to Scott's Cheap Flights premium tier receives approximately 2–4 error fare alerts per month relevant to their home airports.
What should I do if an airline cancels my error fare booking?
Regulations in the US and EU may entitle you to the booking or compensation. Contest the cancellation if regulations apply. In practice, most major airlines honor bookings to avoid regulatory and PR consequences.
Can I find error fares myself without subscribing?
Occasionally, but the hit rate is very low. Deal hunting services have dedicated teams monitoring thousands of routes continuously — impossible to replicate manually with consistent results.
