FlightReportBeta

Methodology

How the Reliability Score works

FlightReport ranks airlines using a transparent, public formula. Airlines cannot pay to change their score.

Base score

Every airline starts each month at 100. Verified passenger reports apply deductions; positive outcomes apply small bonuses. The score is clamped between 0 and 100.

Issue-type deductions

Issue typeDeduction
Cancellation−4
Denied boarding / Overbooking−4
Missing baggage−3
Delayed baggage not delivered−3
Damaged baggage−2
Poor transit care−3
Significant delay−2
Refund issue−2
Poor customer service−1
Other−1

Severity extras

SeverityExtra deduction
Low—
Medium−1
High−3
Critical−5

Bonuses

  • Report marked resolved: +2
  • Resolved within 7 days of the flight: +3
  • Passenger satisfaction rating 4 or 5: +2

Verification & fairness

  • Only verified reports count toward the score.
  • Ties are broken by report count (more reports ranks lower on reliability).
  • Airlines cannot pay to improve their ranking — paid features cover analytics and response tools only.
  • Rankings currently reflect submitted reports only. Passenger-volume normalization will be added when reliable public data is available.
See the current rankings →