Airline safety ratings: what to check before paying more

1. Understand what the numbers measure

AirlineRatings says its 2026 ranking method considers incident rates adjusted for the number of flights. That is different from comparing raw incident counts: the rate accounts for flight activity. A count alone does not supply the same comparison. [1]

This is the publisher’s account of its own method, not independent validation of the ranking. The inspected material does not establish how much safer one listed airline is than another or provide a probability for your particular flight. [1]

2. Separate an airline audit from country oversight

IOSA stands for IATA Operational Safety Audit. IATA describes it as an evaluation of an airline’s operational management and control systems. Its scope is the airline’s systems—not a publisher’s position in a league table. The program description reviewed here does not supply an individual flight probability. [3]

IASA is the FAA’s International Aviation Safety Assessment program. It assesses a country’s ability to meet international aviation safety standards, rather than the ability of an individual carrier. A country-level oversight assessment therefore does not answer the same question as an audit of the airline you are considering. [4]

3. Do one methodology check

For the ranking already in front of you, open its methodology once. Make three short notes. This is an evidence-reading checklist, not an assessment of airline operations.

Publisher and date: Who produced the ranking, which edition are you reading, and what observation period does it use? Keep the publication date separate from the years covered by its data. If either is missing, write “not stated” rather than filling the gap yourself.

Outcome and exposure: What exactly is being counted or scored? Look for the event definition and whether flight activity is accounted for. For AirlineRatings’ 2026 method, the stated exposure measure is the number of flights; a raw count is not a substitute. [1]

Inclusions and exclusions: Which airlines, locations and years are covered, and what is left out? Check whether both ticket options are actually included under comparable rules. Record any missing explanation as unknown. You do not need to build your own ranking to complete this check.

4. Keep the conclusion within the evidence

AirlineRatings’ warning about narrow margins applies to the leaders of its 2026 list. It is not evidence that every airline is equally safe. Likewise, its explanation of PLUS tells you how to interpret that publisher’s label—not that all carriers have identical risk. [1] [2]

This guide has not checked a particular airline’s audit report, registration or current regulatory status. It cannot recommend a named carrier as safe or unsafe. Its stopping point is interpreting the evidence presented, not certifying your booking.

5. Make the decision without inventing a difference

After that one pass, ask: “Does this method establish a safety difference relevant to my two options?” If the answer is unclear, leave that difference unknown. Don’t turn an unexplained score gap into a reason to change your ticket or spend more.

You can then compare price, timing and other booking preferences without assigning an unsupported safety advantage. Your finite next step is complete when you have the three notes—or have marked the missing information as not stated.

Optional: try Ah on your iPhone. Download through TestFlight using the link below.

https://testflight.apple.com/join/psUUTcPV